The mission of the Platform Product Group engineers is to build a trusted, scalable and compliant platform to operate with speed, efficiency and quality. Our teams build and maintain the platforms critical to the existence of Coinbase. There are many teams that make up this group which include Product Foundations (i.e. Identity, Payment, Risk, Proofing & Regulatory, Finhub), Machine Learning, Customer Experience, and Infrastructure. We are looking for an experienced backend engineer to join our Identity team within our Platform Product Group.

The Core Identity team at Coinbase has a critical responsibility as the identity provider service for the entire organization. This team operates at T0 level and handles essential tasks such as managing user data, user grouping, authorization, and user registration services across all Coinbase platforms. As part of the Identity organization, you will help build a unified, trusted, and secure platform for customer identity, access, and authorization for every Coinbase product and the broader web3 ecosystem. Coinbase is the market-leading crypto platform. Our customers can seamlessly and securely interact with Coinbase’s products and the broader web3 ecosystem.

Identity is a critical and uniquely challenging part of helping Coinbase succeed in creating an open financial system for the world. For web3 to thrive, we need to deliver the security of Finance 1.0 and the ease-of-access of web2. Walking the tightrope between usability and security critical to the success of Coinbase’s expanding product suite and to unlocking access to the web3 ecosystem for the next 1B+ users.

What you’ll be doing (ie. job duties):

• Build new services to meet critical product and business needs using Golang.
• Design scalable systems to solve novel problems with modern cloud technology and industry best practices.
• Articulate a long term vision for maintaining and scaling our backend systems and the teams running them.
• Work with engineers, designers, product managers and senior leadership to turn our product and technical vision into a tangible roadmap every quarter.
• Write high quality, well tested code to meet the needs of your customers.

What we look for in you (ie. job requirements):

• You have at least 5 years of experience in software engineering.
• You’ve designed, built, scaled and maintained production services, and know how to compose a service oriented architecture.
• You write high quality, well tested code to meet the needs of your customers.
• You’re passionate about building an open financial system that brings the world together.

Nice to haves:

• You have gone through a rapid growth in your company (from startup to mid-size).
• Experience with growth experiments or A/B testing frameworks.
• You have experience with Blockchain technology (such as Bitcoin, Ethereum etc..)
• You have experience decomposing a large monolith into microservices.
• You’ve worked with Golang, Ruby, Docker, Rails, Postgres, MongoDB or DynamoDB.
• You’ve built financial, high reliability or security systems.

PID -P53363

Apply Now:

Apply Now:

Apply Now:

• We make enterprise web applications for record labels (music industry)
• Looking for full-stack Ruby engineers (Rails-like or Python/Django + want to learn Ruby)
• Would like 2 or more years of professional web development experience
• Positions are full time, fully remote and/or we have an office in Los Angeles
• Starting salary 100-150k (depending on experience) + benefits

• Participating in a weekly planning meeting where we review our goals and prioritize work to be done for the coming week.
• Participating in daily engineering-only meetings (roughly 30min) where the team collaborates on technical decisions, resolving issues, and reducing complexity.
• Writing tests: we write mostly full-stack integration tests and use a single testing framework for all parts of the code.
• Writing application code: mostly Ruby, some HTML, some Javascript. CSS is mostly handled by visual design.
• Reviewing code: We do round-robin code reviews as a means of knowledge sharing. All pull requests are reviewed by another engineer. You’ll take turns reviewing everyone else’s code and they will take turns reviewing yours.
• Deploying code: We deploy small changes to production code multiple times per day. Deployments are automated with lots of fail-safes and we rely on third party services for devops as much as possible.
• Maintaining code: Maintenance is a part of all code changes but we also plan specifically for improving code quality and updating to newer conventions, techniques, and technologies. You will also be reproducing and fixing the occasional bug.

• Estimating work to be done. Instead we try to break work down into small enough chunks that they can be done quickly.
• Reporting progress. Work is done when it’s deployed. Instead we try to reduce the scope of work that is growing complex.
• Stakeholder meetings. While agile processes are all about open channels of communication we find too much can be overwhelming. We have technical product managers who work with stakeholders instead, allowing everyone else to focus on their work while getting their questions answered.

• Relational database concepts such as: foreign keys, indexes, normalization and denormalization, SQL queries.
• Writing Ruby code in an MVC web framework. We don’t use Rails but we follow many of the same conventions. We’ve had success bringing people on from Python/Django so if you have Python experience and would like to learn Ruby it might be a good fit.
• Some familiarity with Javascript. We push as much behavior as possible to the server but features often do have small client-side components.
• Writing tests. We practice integration-test-heavy outside-in test-driven development. If you’ve practiced any sort of test-driven development you will pick it up fast.

• OpenPlay Music is a monolithic application backed by a PostgreSQL relational database. Heavy operations are processed asynchronously by scalable background workers that notify clients via WebSockets. At present we have plenty of room to scale.
• Our server-side code is MVC-structured and built on Sequel (ORM), Sinatra, and HAML. If you’re familiar with Rails (or similar MVC frameworks) you’ll find a lot of similarities and many of the same conventions here.
• On the client side we use StimulusJS to apply bits of dynamic behavior where it improves the user experience, most of which ultimately requests updates from the server.
• There are currently around 2500 full-stack browser-based integration tests covering every feature from user input to expected output. CI runs on every git push and completes in about 15 minutes.
• We do things typical of web applications like:
  • Store data in, and query from, a relational database (PostgreSQL)
  • Index data and query it with filtering and full text searching (Elasticsearch)
  • Handle slow tasks with background processing
  • Push asynchronous updates to clients with WebSockets
  • Export XML files, PDFs, CSVs, Excel spreadsheets, and other formats that just won’t seem to go away
  • Import data from Excel spreadsheets, (music-industry standard) DDEX XML, JSON, and various other sources
  • Communicate with lots of external systems across all manner of bespoke APIs
  • Provide JSON APIs for our customers to build on top of
  • Use git for version control, build features in branches, and take turns reviewing pull requests
  • Run everything on cloud infrastructure
  • Rely on service providers for devops as much as possible (Heroku, etc)

• Starting salary 100-155k depending on experience
• Medical, dental, and vision insurance
• Whatever tools, services, books, etc you need to do your job
• Low stress environment: The industry we’re in is comparatively low scale and high value. While we work with lots of data we avoid some of the technical issues and constant urgency you might find with consumer applications.
• Good work/life balance: We expect that everyone works full time (40 hours/week). We do sometimes have deadlines and we haven’t always limited scope appropriately. The last time we worked late nights was in 2019 for about a week. The time before that was in 2016 for about 3 weeks. Our most recent deadline we met two weeks early.
• Flexible work and vacation schedule. You are free to work the hours that work best for you (outside of our scheduled meetings) and we don’t have a set limit on vacation days.
• Free to work remote. We’ve been doing remote work as long as we’ve been around and our process is built around it. Some of our team is permanently remote, others work out of the office part time.
• Office near the beach in Santa Monica you can use any time.
• Free lunch at nearby restaurants when you’re in the office. Some of which are delicious.

• Prior work experience that looks like it might be a good match for what you’ll be doing at OpenPlay.
• Some understanding of how to program well. Maybe a computer science degree or other academic background. Code contributions you can point to. Blog articles you wrote. A particularly enlightening reddit comment.

• developing, scaling and maintaining some of our backend services including the API, reports and other infrastructure services that manage our product and logistics worldwide
• working with multiple teams day to day to bring more value to Toggl’s users, covering customer-facing web and native applications and public APIs
• designing, breaking down, and completing projects of a medium to large scope with high-level productivity
• looking for technical problems of existing system/product without guidance and offering solutions
• leading projects with a small group of people, such as hosting weekly meetings, communicating with other partners and stakeholders

• Strong backend engineering experience in Go
• Significant professional experience with distributed systems, PostgreSQL, and Google Cloud Infrastructure
• Experience with software engineering best practices (e.g. unit testing, code reviews, design documentation)
• Experience with performance and optimisation problems, particularly at large scale, and a demonstrated ability to both diagnose and prevent these problems
• Ability to work cross-teams and improve cross-functional relationships which will facilitate ongoing projects
• Effective communication skills, ensuring regular consensus with peers and clear status updates.
• Strong collaboration skills across the company to define, design, build, and improve the product.
• Experience with data warehouse, analytics systems, Kubernetes at scale, and system architecture at scale.
• Eagerness to contribute to the engineering team's growth, including interviewing and mentoring junior engineers, and providing precise, actionable feedback to peers.
• Proficiency in the English language, both written and verbal, is required for success in a remote and largely asynchronous work environment

• Freedom to choose when and how much you work - we only measure results
• 24 days of paid time off a year, plus your local holidays
• In-person meetups for team-building (expenses covered)
• 4-6 weeks paid sabbatical (depending on the tenure)
• Laptop budget up to €2,500 and it renews every 3 years
• €2,000 budget to set up your home office, and additional €300 every year after 3 years of tenure
• €250 per month for co-working space membership and/or internet service at home
• €4,000 per year contribution to use for training, workshops, and conferences
• €2,000 per year contribution for any equipment or services to improve and/or maintain your physical and mental health
• Support for buying tools you need for doing your best work (even eyeglasses if you need a new pair)

Department environment

We aim to achieve a balance between corporate culture and start-up culture, and at the same time be close to product solutions. Therefore, we divide our department into small self-sufficient teams that can make decisions on their own. This applies to all stages of product production: from conceptualisation to architecture, to build, to release, to iteration and support.

You'll do lots of research and develop your knowledge regarding cryptocurrency and blockchain including data processing, protocols integration etc. In addition to this, you'll be surrounded by friendly high-level specialists who are ready to share their knowledge.

The team is currently working on several major product changes that will improve client experience with cryptocurrency interaction like secure cryptocurrencies management or simplifying user flows when interacting with Decentralised Finance (DeFi) protocols.

Role Responsibilities

• Support and improve current services that handle over 50 blockchain protocols with more than 500 cryptocurrency assets.
• Research and building new blockchain integration and solutions, including blockchain data processing, cryptocurrency protocols integrations, DeFi integration, etc.
• Support and solve problems from clients and stakeholders.

Your experience, skills and knowledge

• Professional experience in building software with an OOP language: Scala, JS/TS (Node.js), Kotlin, Java, or Go.
• Familiarity with relational databases such as PostgreSQL.
• An understanding of the critical importance of unit tests, well-versed and able to build automated tests of server-side code.
• You’re professionally curious and willing to develop yourself as a multi-stack developer. You are ready that you should research and use technologies and programming languages that you didn’t face before.

Desirable

• Proficiency with containerisation and DevOps practices.
• Experience developing Smart Contracts.
• Familiarity with working on blockchain development (cryptocurrency wallets, blockchain data processing, DeFi etc).
• Experience in building and optimising systems for working with large amounts of data, both at the database level and interactions between services.
• Experience with Go.

Our core tech stack

For this position, you will predominantly work with Scala and Typescript.

• Software development languages: Scala, Javascript/Typescript (Node.js)
• Storage: PostgreSQL, Mongo DB, Clickhouse
• Backend Frameworks: Spring, Akka HTTP
• Frontend Frameworks: React, ElectronJs
• Interservice communication: RabbitMQ
• Architecture: Service-Oriented Architecture (SOA)
• Infrastructure: AWS, Terraform, Ansible, Docker, Mesos/Marathon container orchestration, Consul, Nginx, GoCD by ThoughtWorks CI/CD, Prometheus, Kibana, Grafana

The benefits offered

• Holidays: 27 days per annum paid holiday, in addition to bank holidays
• Seniority Days: One additional day of paid time off is awarded per year of service (up to three years)
• VitalityHealth
  • Medical Insurance: Copper provides all employees with individual cover. Medical history is disregarded, and a 24/7 virtual GP is available (£100 excess per person per year)
  • Dental Insurance: Comprehensive dental cover for preventative, restorative and emergency treatment
  • Audiology Cover: Employees can claim back up 80% of costs, up to £300, for any hearing tests or hearing aids
  • Optical Cover: £500 optical cover (through Vision Express) or 80% reimbursement up to £300 for any other optician
  • Menopause Support: Unlimited support for those experiencing symptoms of the menopause, such as video consultations with a dedicated menopause practitioner
  • Vitality services also include an additional £100 for minor diagnostic tests and private prescriptions, including home diagnostics.

• Pension up to 10% matched Contribution to our Company Pension Scheme via Smart Pensions
• Home Working Energy Support Scheme
• Cycle to Work
• Life Insurance cover: Four times your base salary
• EAP: access unlimited mental health consultations and contact a 24/7 confidential helpline for emotional support.
• ClassPass
• Unmind
• Sponsored Learning and Development opportunities
• Regular company events and social activities

In return for everything you can bring to Copper, we can offer you an exciting, challenging role in a fast-growing and dynamic business, with career opportunities and welcoming working environment.

If you think you have everything we're looking for and more, then we'd love you to apply for the opportunity.

Apply Now:

• A strong frontend engineer with experience in React
• A proponent of user-centric development with an eye for design and user experience.
• Someone who is able to put themselves in the user’s shoes and contribute to discussions around product development. In other words, your coding abilities are complemented by a solid understanding of business models, business goals, user journeys, value propositions, and the ability to discuss product features in detail.
• Someone with outstanding communication skills.
• A software engineer with solid debugging and testing skills.
• Strong work ethic and pride in the quality of your code. 
• Enjoy working closely with others in a cross-functional team.

• An independent and profitable business that is doubling in size. 
• More than 12 years experience in designing, building, and optimising high-growth online marketplaces.
• Technically complex projects that often present unique business challenges that need solving.
• A distributed company, headquartered in London, UK, with a strong documentation and iteration culture that supports remote team members based in Europe, Africa, the Middle East, and the Caucasus region.
• We take full ownership of marketplace projects in close collaboration with our clients. We’re a close-knit in-house team who love working together. We don’t outsource core functions.

• Strong fundamentals in JavaScript, TypeScript, React, HTML, and CSS.
• Expert-level knowledge of and proven experience working with JS libraries such as  React, Redux for state management, React Query, etc.
• Expert-level knowledge of and proven experience working with component-based architecture (React components, Storybook, Design system, Lerna, NPM/Yarn).
• Previous experience working with Micro Frontend 
• Proficient with modern testing frameworks (e.g. Cypress)
• Strong debugging and testing skills.
• Strong communication skills in English.
• Experience in backend development with Node.js (Express or Nestjs) would be a great bonus.
• Experience in designing UX/UI journeys would be a great bonus.

• ReactJS and React Native
• NextJs 
• Bootstrap
• NestJS
• MongoDB, PostgreSQL, ElasticSearch
• AWS
• Figma
• Storybook
• Lerna / Bit.dev
• Strapi Headless CMS

About us:

Avara is a group of software development companies that build open-source, blockchain-based software for the Web3 world. With a mission to reinvent our modern paradigms in the realm of finance, social media and beyond, we are focused on building revolutionary products and protocols that will reinvent the ways we communicate, our financial systems, and our cultural norms. United with one clear goal, Avara is determined to build a future for users that provide them with better control over their finances, data and social experiences.

Our culture:

Having cultivated a thriving, collaborative culture, our team is kind, welcoming and passionate about what we are building. We celebrate differences and seek to develop and retain the most talented people from a diverse candidate pool from all over the world.

About the role:

The Backend Developer will enhance and maintain high-performance systems using Node.js and TypeScript, optimise database performance, and implement best coding practices. This role involves collaborating with various teams to develop efficient APIs and streamline deployments, focusing on scalability and rapid response to support the Family Wallet.

How you can make an impact:

• Develop, maintain, and enhance high-performance backend systems utilizing Node.js and TypeScript.
• Optimise database performance, scalability, and integrity, managing both PostgreSQL and MongoDB environments.
• Implement best practices in coding, including automated tests, comprehensive documentation, and conducting code reviews as necessary.
• Collaborate with the DevOps team to streamline automated deployments using CI/CD, enhancing production visibility and ensuring environment stability.
• Work closely with the iOS team to architect and develop efficient REST APIs that support the rapid response requirements of the Family wallet.
• Process and convert blockchain data from multiple chains into a format suitable for efficient querying.
• Design and implement sophisticated caching mechanisms to provide instantaneous API responses.
• Lead backend architecture discussions and planning for integrating new features seamlessly.

Let’s connect if:

• Minimum of 5 years’ experience in backend development, preferably with large-scale systems.
• Strong proficiency in Node.js, TypeScript, Redis, Git, and RESTful API design.
• Solid experience with both SQL and NoSQL database technologies.
• Familiarity with AWS and other cloud services.
• At least 1 year of experience in the web3 sector, developing backend solutions.
• In-depth knowledge of the Ethereum Virtual Machine (EVM) and data extraction techniques from EVM-based blockchains.
• Excellent skills in communication, collaboration, and problem-solving.
• Capable of working both independently and as part of a diverse team.
• Passion for building products with a high degree of craft, polish and attention to detail.

Haven’t quite met all the criteria? Let’s not miss out on the chance to speak. Whilst you might not meet every single requirement, you might bring other, more exciting skills to the companies!

Equal opportunity statement:

Avara celebrates diversity and view each and every team member as a separate individual with their own unique identity. No matter your race, religion, gender, ethnicity, age, (dis)ability, sexual orientation or even the wallet you use, we welcome you at Avara.

As an equal opportunities employer, we take accountability and believe in everyone’s potential to build, create and inspire changes. With a mission to build a diverse workforce, we are proud to foster a working environment in which everyone can feel safe and valued for who they are.

About this role

• Independently manage projects from initial, rough designs to final implementation, including creating task lists in Linear, breaking down PRs into manageable, deployable code segments, testing in staging, deploying to production, and monitoring app performance post-deployment.
• Prioritize and handle timely dependency upgrades in our applications with the same enthusiasm as greenfield projects, recognizing their importance in maintaining app security and enhancing user experience.
• Assist our incredible support team with merchant questions in Slack and take pleasure in providing solutions.
• Effectively communicate your progress and collaborate on problem-solving using digital tools like Slack and GitHub PRs.
• Rapidly learn and adopt a product development mindset, considering automated tests essential for building confidence in your code.
• Support your team members and customers whenever needed. As a close-knit team, we thrive when we help each other.
• Adapt to changing priorities and manage multiple tasks simultaneously.
• Stay calm under pressure, especially when faced with multiple Rollbar errors, a full Sidekiq queue, or app downtime alerts.
• Be comfortable working from home, using Slack as our main form of communication.

Qualifications

• 4+ years of experience with Ruby on Rails
• Experience with React, including hooks and context APIs
• Experience with Shopify REST and GraphQL APIs is a plus
• Experience with Shopify CLI and Theme app extension development is a plus
• Familiarity with Rust is a plus

Our stack

• Ruby on Rails
• PostgreSQL
• React
• Shopify's Polaris design system
• Redis for caching and background queues
• Sidekiq for background processing
• Heroku for application hosting

Who you are

1. Resourcefulness: You are relentlessly resourceful, always finding a way to achieve the highest standards of quality. You know where to look and whom to consult when faced with challenges, understanding that we always support each other.
2. Ownership: You take complete ownership and pride in your work. This means deeply understanding our users' problems and how new features or updates affect them.
3. Communication: You effectively communicate your progress, challenges, checklists, and pull requests, detailing them in Linear or GitHub PR descriptions to keep the rest of the team informed. Effective communication is crucial in our fully remote and asynchronous team environment.

👋 Hey there

We’re OpenCover — our mission is to keep the world safe onchain.

We are assembling a world-class team of engineers, product and business leaders to deliver onchain safety at scale and drive wider adoption.

With over $7 billion lost to onchain exploits to date, we work with leading cover and insurance providers to help individuals and institutions protect themselves against onchain risks such as smart contract exploits, malicious transactions and governance attacks.

OpenCover is backed by leading investors including NFX, Alliance, Village Global, Jump Crypto, Orange DAO and Coinbase Venture’s Base Ecosystem fund.

🚀 Your role

We are looking for a product-minded engineer to join our founding team with a focus on developing core product infrastructure and company-wide internal tools. This would involve combining onchain and offchain data. Depending on your appetite, your responsibilities could expand significantly.

You’d be a great fit if

• You’re a generalist who easily adapts to new scenarios and technologies. You go all out to use your knowledge to find the right solutions for the problems at hand—we’re here to support and collaborate with you every step of the way.
• You’re passionate about building products from the ground up in a tight-knit team with a strong focus on collaboration and proactive communication.
• You have 5+ years of full-time experience developing and shipping customer-facing applications.
• You’ve interacted with protocols on Ethereum (or any EVM-compatible blockchain) and understand the building blocks and principles of blockchains.
• On the frontend, you have a strong command of TypeScript and React.
• You’ve designed and implemented backend services using Node.js with TypeScript.
• You’re no stranger to PostgreSQL and a messaging broker.
• You have hands-on experience with a cloud platform, Docker, Bash and Linux.

🙌 Our offer

• Play a key role in driving onchain adoption and directly impact company trajectory.
• A remote-first environment with the option to work from our London office.
• Flexible working hours and 28 days paid holiday per year.
• Starting salary of $90,000 – $120,000 per annum + 0.1 – 0.25% in equity.
• $1,000 budget for home office setup, wellbeing and personal development every year.

Ready to apply?

Head to https://opencover.com/apply/fse and get shortlisted in 10 minutes or less.

• Build end-to-end products to revolutionize the revenue cycle management process for providers
• Be a part of a tremendously fast-paced team that celebrates fast execution and decision
• Work across the entire software stack
• Work with a stack that includes Python, Javascript, Vue, React Native, Flask, and other frameworks

• Able to work flexible hours based on US time-zone 
• At least two years of production software engineering experience
• Expert in Python
• Able to work on both front-end and back-end in general and deliver product end to end
• Basic understanding of cloud solutions (GCP, Docker, Kubernetes)
• Familiarity with modern software development methodologies and cycles
• Understand standard web-based technologies, such as restful standards and relational databases (eg PostgreSQL)
• Have a strong product engineering sense with a can-do builder attitude
• Able to identify opportunities to improve the current process

• Having worked on greenfield projects before, build and ship products from scratch 
• Worked in the healthcare industry before
• Experience working in a fast pace environment (we ship fast)
• Remote work experience
• Familiarity with BI software

• Execution focused, driven team: Join a team with an incredible record - we are the smallest, fastest company in history to receive FDA hematology clearance. We are also the largest Remote Patient Monitoring company in the US, with a fast-growing SaaS Revenue Cycle Management business as well
• Technology Focus: Revolutionizing how technology can be used in the healthcare industry
• Strong Backing: $132M Series B raised from the likes of Sequoia, General Catalyst, Tribe, Y Combinator
• Mission Driven: We are changing the way healthcare is provided, bringing it directly to the people who need it with technology-enabled solutions
• Incredible Growth: Revenue growth of 5x over the past 6 months and we're just getting started!

Apply Now:

• Collaborate with team on product development and feature planning
• Develop and maintain our web application with ES6
• Implement API requests and responses on the client-side
• Work closely with our designer to implement new features from mockups and prototypes using React, JSX
• Build reusable React components that can apply to a variety of use-cases throughout our app
• Improve existing React/Elixir code
• Contribute to Phoenix API and tooling
• Triage bug reports

• Minimum 2 years experience in a development role
• Demonstrated competency with Javascript and React (open source is a huge plus)
• Familiarity with concepts of RESTful APIs
• Excellent written English communication skills
• Detail oriented
• Good at receiving and giving constructive feedback

• Experience with Elixir/Phoenix
• Experience managing deployment environments (we use Ansible/Docker)
• Familiarity with mobile app development using React Native or Swift
• Familiarity with JavaScript bundling tools like Babel and Webpack
• Familiarity with GraphQL
• You care about design and user experience
• You think in systems. You’re conscious of making our process more modular, reusable, and composable
• Solid grasp of DB maintenance/troubleshooting (we use Postgres)

About the Role

You’ll be at the ground floor of scaling Tensor for the next 1 million traders and building the most sophisticated trading infrastructure & platform for NFTs in the world.

You will:

• Ship new products for NFT traders: faster data, more capital efficiency, advanced order types
• Optimize and scale our data pipelines to handle O(1-10K) transactions/second at peak
• Own projects end-to-end: from front-end to backend APIs to data pipelines

You are:

• Excited about web3/crypto/NFTs. We really cannot overstate this - you’ll be joining a team of web3 nerds
• A generalist with 3+ years of experience working on large-scale, data-intensive apps
• Experienced with React, NodeJS, Postgres, Redis, ElasticSearch and/or Docker (if you have experience with other modern stacks that’s totally fine too, as long as you’re a fast learner!)
• Proficient in at least one low-level language (ideally Rust or Go)

Bonus points for:

• Experience scaling data-rich consumer products, APIs & trading infrastructure to millions of users and O(terabytes) data
• Experience building real-time pipelines on AWS (Kafka, Dynamo, SQS, RDS) and services on Kubernetes
• Experience optimizing React apps to handle hundreds of renders per minute
• Strong fundamentals in statistics, math, or quantitative finance
• Good intuition on when to move fast/break things vs when to move carefully

What you’ll get:

• Generous ownership & stake in the company. We’re looking for owners 🤝
• A fast-paced, no-BS environment
• Flexible working hours & hybrid schedule
• Top-of-the-line M3 Macbook Pro and peripherals

Our stack is Rust (protocol) / TypeScript (back-end & front-end), React/NextJS, AWS, Kubernetes and a bunch of distributed data systems (Kafka, RDS/Postgres, ElasticSearch).

Location

We’re remote-first. The founding team is in Toronto, and you’re welcome to join us there, but you don’t have to.

Apply Now:

About The Role:

The Software Engineering team at Shardeum is responsible for delivering the Shardeum Mainnet, and developing the smart contract platform, the consensus layer and the protocol layer. We focus on building scalable, performant, secure and reliable software that can be downloaded by thousands of node operators to actualize the Shardeum network.

We are in search of highly talented, innovative Principal Blockchain Engineer to join our team. If you enjoy solving complex computer science problems, are passionate about what you work on, are a perfectionist who wants to build things the right way, and are persistent about finishing what you started, then you're the kind of person we are looking for. You will be working with equally talented and innovative individuals with the goal of building incredible software with the potential to change the world.

What You'll Be Doing:

• Provide technical structure to teams and work closely with management and stakeholders to define strategic roadmaps
• Manage individual projects priorities, deadlines and deliverables with your technical expertise
• Mentor and train other team members on design techniques and coding standards
• Contributing to the architecture and implementation of complex software components in Node.js
• End-to-end ownership of critical software components
• Designing and developing innovative new consensus and protocol software
• Ensuring performance optimization, and making scalability / reliability improvements to the software
• Testing, reviewing and suggesting improvements to the software
• Resolving issues, debugging errors and fixing code to improve the reliability and security of the software
• The tech stack you will be using is: Node.js, TypeScript, SQLite, Postgres, React and Vue.js
• The development environment will be: Linux, Git, AWS, Docker and VSCode

What We're Looking For:

• You know what high quality code look like and know how to foster an environment that creates it
• Fluency with algorithms and data structures
• Ability to quickly learn new languages and technologies
• Ability to write clean yet efficient code
• The Creativity to come up with proof of concept from high level design, while not knowing all the details
• Self motivated to set priorities and methodically make progress towards the goals
• The ability to communicate effectively and convey your ideas when discussing technical topics with team members
• Bachelor's Degree in Computer Science or a related field

We'd Love If You Have:

• Experience with concurrency, parallelism and distributed systems
• Familiarity with the Shardeum / Shardus open source repos
• Experience with consensus protocols and other blockchains
• Experience with Node.js and TypeScript, or languages like C, C++, Rust or Go
• Experience writing a smart contract on a blockchain
• Experience running a node in a blockchain network
• Knowledge of cryptography
• Experience with networks and operating systems
• Contributed to open source projects
• Written articles or created videos on technical topics, especially related to blockchain
• Read the Bitcoin and Ethereum whitepapers

Apply Now:

Chorus One is one of the leading operators of infrastructure for Proof-of-Stake networks and decentralized protocols. Tens of thousands of retail customers and institutions are staking billions in assets through our infrastructure helping to secure protocols and earn rewards. Our mission is to increase freedom and speed of innovation through decentralized technologies.

We are a diverse team of 60+ people distributed all over the globe. We value radical transparency, striving for excellence and improvement while treating each other with kindness and generosity. If this sounds like you, we’d love to hear from you.

Role

As a Senior Software Engineer, you will be an integral part of our Ethereum software engineering team focusing on automation of validator infrastructure and building great staking products. OPUS is our product suite which offers a one-stop-shop product for staking Ethereum. For users, it offers a portal where users can stake and see their rewards, and check the status of their validators. On the backend, we have a platform that automatically launches, manages, and monitors these validators.

OPUS consists of a React/Next.js frontend and a backend written in Rust. It is backed by PostgreSQL and Hashicorp Vault, and runs mostly on Google Cloud, with some bandwidth-intensive parts running on bare metal.

Your main role will be to design, develop, and deploy software systems to advance our product as well as other staking services.

Responsibilities

1. Design and develop new features. Discuss with internal stakeholders to clarify how our next feature should look, discuss with fellow engineers how it should be implemented, and then drive implementation to completion.
2. Support and collaborate. Review and discuss engineering designs, review code, help fellow engineers, and mentor them on a technical level.
3. Innovation and continuous improvement. Seek to simplify, optimize, and secure our staking services and systems.

The “Senior” title on the job description is purely for describing the experience level of the hire we’re looking for. Our job titles don’t include hierarchical seniority systems and we use consensus for driving decisions.

Job requirements

What we are looking for

• +5 years experience as a Software Engineer
• Experience with developing smart contracts and understanding of the Ethereum ecosystem.
• Experience with testing, maintaining, launching software running in production
• Deep understanding of at least one compiled statically typed programming language (e.g. Rust, Go, Kotlin, C++, Haskell)
• Ability to design new software features based on given requirements with focus on simple and sound architectural design choices
• Experience writing reliable applications using SQL databases, preferably PostgreSQL
• Strong communication skills and ownership to drive new features independently.

Nice to have

• Experience building, deploying, operating, and monitoring software, and related tools such as Prometheus, Terraform, Ansible, Kubernetes and Vault.
• Basic familiarity with how blockchains work, and consensus algorithms such as pBFT.
• Candidates in European time zones (GMT+0 to GMT+3).

Our Offer

• Autonomy and ownership in a friendly and supportive work environment and the opportunity for rapid growth.
• Competitive fixed compensation (USD 100k - 140k commensurate with experience and equity options available)
• All-expense paid biannual team retreats at various destinations. Past retreats took place in Egypt, Serbia, Kenya, USA, South Korea, Thailand, Georgia, Dubai.
• Remote, but not alone. We are a strong global collaborative environment.
• Remote working budget (Laptop, co-working space, etc)
• Personal development budget
• Gather experience and build your network in the vibrant crypto ecosystem.
• Learn about state-of-the-art protocols that lay the foundation for an open, transparent, and programmable financial system.

Job Type: Full-time (Remote)

• Design, develop, and maintain scalable and high-performance features for our core Ruby on Rails application.
• Collaborate with cross-functional members to gather requirements, design solutions, and implement new features.
• Optimize application performance, database queries, and overall system architecture.
• Write clean, maintainable, and testable code following best practices and industry standards.
• Conduct code reviews and provide constructive feedback to junior team members.
• Identify and troubleshoot software defects, performance bottlenecks, and system failures.
• Stay up-to-date with the latest trends and advancements in Ruby on Rails and web development.

• At least six years building software in a team environment or equivalent experience. Years of experience doesn’t always capture expertise, so we encourage you to apply if you can demonstrate you’re well versed in building high-quality software in a team environment
• At least two years working professionally on a Ruby on Rails application or equivalent experience.
• Experience writing code that is accessible, scalable, maintainable, and performant
• Experience with any modern frontend framework (Vue, React, Angular, ...)
• Experience working with background job processing environments - like Sidekiq or other ActiveJob processors
• Experience writing complex queries for relational databases - we use PostgreSQL.
• Comfortable working remotely in an autonomous environment - you don’t mind asking questions and problem solving in public communication channels.
• Able to work in US time zones - you don’t have to live in those time zones, but you have to be able to collaborate with your teammates during those times.

MANUAL is a digital personal development and mental wellness platform designed to inspire young men to become the best versions of themselves. Today, male students are far less likely to be enrolled, retained, and graduate from higher education institutions, and this is especially true for young men of color. Their mental health outcomes are rapidly worsening, with young men dying by suicide and overdose at alarming rates.

MANUAL works with high schools, universities, and fraternities across the country - including the University of Mississippi, Morgan State University, and MSU-Denver - to solve this challenge, bringing high-quality men's success and mental health programming to tens of thousands of students. MANUAL has raised capital from Expanse Venture Partners, 12-48, the Inner Foundation, and angel investors from companies like Maven Clinic, McKinsey & Company, Eleanor Health, and more. MANUAL's evidence-based approach has been proven to enroll young men who are not currently being reached by existing services, and users report significant levels of trust towards the service.

Are you passionate about crafting efficient and scalable applications? Do you want to use your skills to help thousands of young men around the country? If you're enthusiastic about full stack Typescript, and love the thrill of a startup, we'd love to talk to you!

Who We're Looking For:

Typescript Enthusiasts: You have a solid understanding of Typescript and the JS ecosystem. You've built or contributed to web applications and APIs using these technologies and are excited about crafting beautiful, efficient, and scalable web applications. You've written production frontend and backend code.

Problem Solvers: Complex challenges excite you, and you excel at finding innovative solutions. You understand that in a startup environment, delivering a functional solution that meets users' needs is more critical than crafting a perfect solution that never launches.

Team Players: Our small but growing team values collaboration and open communication. Your input will significantly impact our projects, and we value engineers who are humble and willing to assist their peers.

Lifelong Learners: Your willingness to learn and grow is vital. We appreciate those open to new ideas and experiences, understanding that everyone has something to teach.

What You Won't Need:

• A specific number of years of experience. Your ability to apply what you've learned to new challenges is what truly matters to us. We're not in a position to provide the support and mentorship a very junior developer needs (ex. fresh out of college or dev bootcamp), so you should have experience shipping production code.
• A formal education in computer science. We recognize the value of diverse educational backgrounds and learning paths. Our head of engineering, for example, doesn't have a computer science degree.

What You'll Do:

• Contribute to the development of our RedwoodJS-based web application, potentially setting the direction for this greenfield project.
• Assist in the management of our Postgres database and backend infrastructure.
• Contribute to our React Native and NextJS apps
• Engage in user feedback sessions to directly learn from our users and adapt our solutions to better meet their needs.
• Be involved in the hiring process for future engineering team members, helping us grow our team with talented individuals.
• Play a pivotal role in defining our engineering processes and culture.
• Collaborate closely with our head of engineering and other team members on a variety of backend and frontend projects, contributing your unique skills and perspectives.

Important Details

• Job Type: Full-time, remote work environment with occasional optional travel for team get-togethers.
• Compensation structure: We are considering engineers with a range of experience and skill for this role, and will make cash offers of $115k-$140k per year. A competitive equity plan will be provided.
• Benefits: Fully covered (no employee contribution) Health, Dental, and Vision insurance. Unlimited PTO.

Hiring Process

• You submit your application, if we select you for an interview we'll reach out to schedule...
• 30 minute intro call with Karl Morand, our head of engineering. This call will be focused on getting to know you, your background, experience, and answering any questions you have about MANUAL or the role. We won't get into anything super technical (no live coding or anything like that). A list of some topics/questions will be provided to you before the interview - the goal is to see you at your best, not test your ability to remember anecdotes from your past under pressure.
• Take home project is the next step. You will have at least 5 days to complete the project. The goal of the project isn't to nitpick your code, but rather to give us a starting point to discuss how you approach solving problems with code.
• 45 minute technical call with Karl Morand, our head of engineering. In this call we'll use your take home project as the basis of our discussion on how you approach solving problems. All candidates who complete the take home project will advance to this stage. This call will include a more detailed discussion of your technical experience and knowledge. Specific topics of interest will be provided to the candidate when the interview is scheduled. While this call is more technical in nature, there is still no live coding. Candidates who successfully complete this stage advance to...
• 30 minute teammate interview with 1-2 other members of the MANUAL team. You'll be working closely with everyone on our small team, so it's important for you and us to feel confident that we'll make a great team. You'll receive information about the interviewers and topics when the call is scheduled. Candidates who successfully complete this stage advance to...
• Job Offer!

Apply Now:

Apply Now:

• You write clean and organized backend RoR API code
• You cover your code with decent test-coverage
• You are part of the decision making process regarding software architecture and engineering processes
• You align with different stakeholders as you work together closely with your team-members, QA and the customer

• 3+ years of experience in developing Ruby on Rails including test automation
• You are familiar with GIT, Postgres and Docker
• You are interested in other tech stacks, and are not afraid to learn new things. Our team maintains embedded components in Golang and QT, and Android in the near future.
• Good communication skills and proficiency in English
• Hands-on mentality – you are enjoying development, refactoring, debugging, testing, and exploration
• High quality awareness and very accurate and structured method
• Experience in fintech and automotive industries is an advantage

• Our values 💛 We believe in personal responsibility, flexibility, and trust.
• Our team 🦸‍♂️ We're international, diverse, and operate with flat hierarchies.
• Our projects 🚀 They're inspiring, innovative, and growth-oriented.
• 100% remote 🌐 Work from wherever you feel most productive and happy.

Stuart here, founder of Booster SEO

About the job

How are we different?

• We believe in writing Rails in a particular style, sticking close to standard and general Rails best practices. 
• If a feature takes our competitors 8 weeks to build, we build a solid MVP in 8-10 days. We utilize the 80/20 principle to focus on what matters and just ship. Of course, we look at the usage metrics, then come back and complete the other 20% over time.

What will you be responsible for?

• Development of our Ruby on Rails monolith.
• Write high-quality, clean, and scalable code following best practices and design patterns
• Write and maintain unit tests, integration tests, and end-to-end tests to ensure the reliability of the application
• Perform debugging and troubleshooting to identify and fix issues promptly
• Collaborate with teams to ensure smooth deployment and continuous integration processes and participate in configuring and maintaining the deployment pipeline and monitoring systems

Who you are

• You’re self-driven and prefer working autonomously with limited guidance
• You’re dependable, reasonable and trustworthy, with proven sound judgment
• You can operate in a high-octane environment 
• You utilize the Pareto Principle (80/20)
• You prefer 5 minute daily standups vs long drawn out meetings 
• You have a profound passion for Rails best practices

Requirements

• 6+ years of professional software development experience with Ruby / Ruby on Rails
• Deep knowledge of working with the Shopify app ecosytem
• In-depth knowledge of database systems, particularly relational databases (e.g., Postgres, Sidekiq and Redis)
• The ability to adjust to our high octane workflow. One of our core values is to create what works in its simplest form and iterate based on metrics and feedback. We don't have long release cycles 🤗
• The ability to work in EST or PDT time zone, or at least overlap by 5 hours
• Ability to write efficient and optimized code, following best practices and design patterns
• Strong analytical and problem-solving abilities to tackle complex technical challenges
• Excellent communication skills to effectively collaborate with cross-functional teams, including product managers, designers, and other engineers

❤️ Things we love

• Living by our GAINS core values of Growth Mindset, Analyze Before Assuming, Iterate & Improve, Nurture Relationships, and Scrappy.
• Helping over 1.4M Shopify merchants who have installed our software
• Having a stress free work environment!
• Being a 100% remote & 100% global team! 

🤮 Things we avoid

• Micro-managing
• Egos
• Drama

Salary

• Experience implementing real-time (e.g. websockets, polling, etc.) web apps
• Experience working with GraphQL endpoints
• An eye for design and experience with Figma, Sketch, Abstract, Photoshop, or similar
• Led small project teams building and launching features
• Contributed open source code (core or plugins) for a popular frontend framework such as React, Vue, or Angular
• Built B2B SaaS products
• Experience with sales or sales tools

• Conceiving, designing, building, and launching new user-facing features
• Working with Twilio's API, WebSockets, and WebRTC to improve our calling features
• Building user-facing analytics features that provide actionable insights based on sales activity data
• Improving real-time collaboration user experience
• Expanding our frontend GraphQL usage
• Extending our React component library

• Culture video 💚
• 100% remote company (we believe in trust and autonomy)
• Choose between working 5 days/wk (standard full-time) or 4 days/wk @ 80% pay
• Annual team retreats ✈️
• Quarterly virtual summits
• 5 weeks PTO + Winter Holiday Break
• 2 additional PTO days every year with the company
• 1 month paid sabbatical every 5 years
• Paid parental leave
• Medical, Dental, Vision with HSA option (US residents)
• 401k matching at 6% (US residents)
• Dependent care FSA (US residents)
• Contributor to Stripe's climate initiative 🌍❤️ 
• Our story and team 🚀

• Build a house you want to live in -- Examine long-term thinking and action
• No BS - Practice transparency and honesty, especially when it’s hard
• Invest in each other -- Build successful relationships with your coworkers and customers 
• Discipline equals freedom -- Keep your word to yourself and others
• Strive for greatness -- Constantly challenge yourself and others 

• Productivity, Quality & Impact: We don’t track hours. We trust you’re an adult and know best how to prioritize, meet your goals and contribute at a high level. 
• Asynchronous communication & collaboration: We have team members all over the world. We don’t expect anyone to work untraditional hours, that means our default is async. Most teams have 2-5 hours of internal meetings weekly. 
• Appreciation for Deep Work: *During your normal work day, not after a day a meetings*. 
• Autonomy & Freedom: Create a work environment that is sustainable for you. We place a high amount of trust and responsibility with our team members from the start. 

1. Remote work with flexible schedules
2. A privately owned, low-stress culture
3. A fun "no bullshit" work environment

1. Docker
2. Kubernetes
3. GCP
4. AWS
5. Go
6. Postgres
7. Redis
8. Familiarity with JavaScript
9. Excellent communication skills (English)
10. Degree in Computer Science or equivalent practical experience

1. Build CI and CD pipelines
2. Optimize and scale workloads
3. Secure containers and web services

1. Salary: $135k+ based on experience
2. $20,000 signing bonus
3. 4 weeks vacation + holidays based on your country of residence

Apply Now:

Apply Now: