About Hylé

Hylé is pioneering the future of blockchain infrastructure with ZK technology. Our approach promises a streamlined, efficient blockchain, maintaining its key features: censorship resistance, permissionless value, and reliable decentralization.

Backed with $5M from leading VCs, we’re building our team, currently led by founders Sylve (CEO) and Lancelot (CTO). Our goals are ambitious - B2B use cases within 4 months, series A within the year, and going live on mainnet within 24 months.

Programming Skills

The initial team will be 3-4 devs and the CTO, so product ownership will be essential.

This role target a principal engineer with extensive web3 blockchain experience at the protocol / infrastructure level. The ideal candidate has more than 10 years or programming experience, including a substantial amount in specifically web3 stacks such as:

• Backend programming: Rust / Go
• Shipped a blockchain mainnet
• Worked on bridges across different chains
• Worked with one of Cosmos SDK / Polkadot / Geth / …
• DevOps / Infra (either on bare metal or containerised)

Other skills

• Willing to work in a venture start-up with high risk - this is a go big or go home project
• Highly adaptable - we will try to remain rather nimble, and while the overall goal is well specified the path to get there is subject to change
• Good with feedback, communication, transparency
• Business & delivery oriented
• English mandatory, French appreciated

Key responsibilities

The core technical objective is twofold: shipping B2B use-cases in the coming months, then expanding that a permissionless mainnet blockchain with 24 months. You can expect:

• At first working on a Cosmos SDK app written in Go, augmenting it with verifiers for various ZK proving schemes (those mostly written in rust).
• Exporting the implications of our new architecture by writing our own apps
• Bridging the state of the chain to/from other networks such as Ethereum
• Working on support for various wallets
• Investigate the need to switch away from the Cosmos SDK, and if this path is taken, participate in writing a new blockchain stack. If not, modify the Cosmos SDK accordingly.

Compensation & benefits

• Highly competitive salary + Equity
• Alan Green Mutuelle
• Computer of your choice
• Flexible remote policy (but no fully remote hire at this time)
• Socials - company retreats, weekly gathering

Other important info

We share an office in Paris (Le Peletier) with other tech companies, and would prefer avoiding fully remote hires at this time. Flexible remote is very possible.

Interview process is straightforward - a quick initial screening call, an in depth technical dive to answer any questions, a technical architecture interview, and a “fit” interview with my cofounder.

To apply

Interested in joining us in this exhilarating adventure? Send your resume to email.

Senior Full-Stack Developer

Are you looking for a rewarding Full-Stack Developer role in the web3 sector?

Protokol are seeking a passionate and motivated Senior Full-Stack Developer to help develop our products and solutions. Working alongside a friendly and creative development team, you’ll be tasked to work on a wide variety of projects, from developing new features for existing products, to helping create custom solutions for our clients.

This role would suit a candidate from a software development background, with experience in web3 and AWS, and someone who is seeking to be a key player within a rapidly growing team. It would also suit an ambitious and determined individual seeking the opportunity to further their career within Protokol as we scale.

Job Role & Responsibilities

• Develop new user-facing features related to our products
• Build reusable code, components and libraries for future use
• Ensure the technical feasibility of UI/UX designs
• Optimize applications for maximum speed and scalability
• Collaborate with other team members and stakeholders, making it possible to quickly jump between projects and responsibilities
• Report to team lead/CTO with issues and any risks identified
• Collaborate with back-end developers and web designers to improve usability. Ensure that all user input is validated before submitting to back-end
• Get feedback from, and build solutions for, users and customers
• Help back-end developers with coding and troubleshooting
• Ensure high quality graphic standards and brand consistency
• Stay up-to-date on emerging technologies
• Review Pull Requests related to our project
• Follow our contribution guidelines
• Follow our Code of Conduct
• As an employee of the Protokol, represent the company in the best possible way and be respectful when commenting and communicating within community/customers (Slack, Pull Requests and any other Protokol related communication)

Required Skills & Experience

• Proven work experience as a Full-Stack Developer
• AWS experience:
  – AWS CDK / AWS CloudFormation / or Infrastructure as Code in general
  – AWS API Gateway
  – AWS Lambda
  – AWS DynamoDB
  – AWS S3
  – AWS IAM
• GitHub Actions (or CI/CD in general)
• Can develop, debug and work with cloud-native applications
• Understands:
  – Serverless architecture
  – Event-driven architecture
  – SaaS application model from engineering perspective
• Has worked with Microservices; understands loosely coupled infrastructure
• Experience handling multitenancy within an application
• Experience working with data-heavy applications, can design database structures and apply optimizations when needed
• Understands deployment strategies like blue/green, canary deployment
• Great understanding of Front-End technologies (React, Angular, Vue) – senior in one of the stacks, React preferably
• Great understanding of asynchronous request handling, partial page updates
• Proficient understanding of client-side scripting and JavaScript frameworks
• Strong understanding of dApp development process and web3 concepts
• Familiarity with web3 and blockchain technology
• Proficient understanding of code versioning tools – Git

Benefits

Does this sound like the perfect role for you? Want to understand what we have to offer? As well as an exciting opportunity to join a fast-growing and innovative company on the cutting-edge of an exciting new industry, you’ll also benefit from…

• Remote working (with flexibility on working hours), allowing you to balance your life and career to enjoy both to the fullest. We’re accommodating of people’s needs. We DO NOT believe in time keeping and logging hours.
• Competitive salary
• Flexible vacation time including 20 days holiday allowance plus national holidays.
• Strong Vision, Mission, Values and Leadership as well as a strong focus on our people.
• Flexible career development opportunities and opportunity for advancement into leadership as we grow
• Work alongside talented and motivated colleagues, in a fast-growing and innovative company

Apply Now:

About the Opportunity

We’re looking for a Software Engineer to join the remote-first wallet team at Trust Machines, and help us craft a beautiful, consumer-facing cryptocurrency wallet.

This role is critical in building a premier user experience for the Stacks ecosystem, fostering an engaged user base, and broadening the wallet’s capabilities within the Bitcoin realm.

The ideal candidate has experience building user-friendly applications in a startup environment. As a core engineer for this product, you’ll be responsible for implementing high-quality features across a handful of platforms.

What You’ll Do:

• Work closely with the team to understand user needs, and work on high-impact features for our Web Extension and mobile wallet, while championing mature engineering practices.
• Work closely with engineering peers to align on architectural direction and consistent use of design patterns, while considering how code can be shared cross-product.
• Collaborate with the design team, considering multiple ways to solve problems, weighing up implementation complexity, user experience, and product impact.

What We’re Looking For:

• 5+ years in similar role(s) for consumer software (strong requirement)
• 2+ years at startup(s)
• Preference for remote, OSS work in direct contact with the product’s user base via Discord and other public channels
• Located between GMT -5 and +3
• Experience with Typescript, frontend frameworks (ideally React), CI/CD tooling
• Demonstrable experience of modern web development: JavaScript APIs and tooling, state management, accessibility, performance, and security
• Familiarity with UI design best practices
• High degree of user empathy, inclination to question assumptions, independent self-organizer, openness to feedback, and comfort with technical complexity
• Excited to work in the crypto industry

We’d Also Like to See:

• Experience with ReactNative and/or Web Extensions
• Knowledgable about Bitcoin, and its underlying cryptography
• Existing contribution to Stacks ecosystem
• A security-focused mindset, and familiarity with common attack vectors

What we offer:

• Work from home
• Competitive salary ($180-$220k)
• Company equity
• Open Vacation Policy, take the days you need
• Up to 16 weeks of paid parental leave
• Your choice of technical setup and equipment

Please note that benefits vary by country. The ones shown above are for our full-time U.S.based employees. Benefits information for non-US-based positions will be provided to individuals who interview for those roles.

Trust Machines is proud to be an equal opportunity employer and deeply cares about building a diverse team. Trust Machines is committed to building an inclusive environment for people of all backgrounds. We do not discriminate based on race, color, gender, sexual orientation, gender identity or expression, religion, disability, national origin, protected veteran status, age, or any other status protected by law.

Apply Now:

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:

• 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.

Responsibilities

• Be part of a devops team, dedicated to building internal platforms.
• Work closely with internal teams to improve the system reliability, scalability and security.
• Engage in and improve the infrastructure quality supporting the platform.
• Build and manage systems, infrastructure and applications through automation.
• Provide operational support to internal teams working on the platform.
• Work on improvements to bring in high efficiency, reduce latency, deploy systems faster.
• Practice sustainable incident response and blameless postmortems.
• Together with your engineering team, you will share an on-call rotation and be an escalation contact for service incidents.

Minimum Qualification

• Bachelors with 5+ years of working experience as Site Reliability Engineering (SRE) / Devops Engineer
• Experience with programming in at least one of the following languages: C, C++, Java, Python, or Go.
• Knowledge of Linux internals and bash scripting.
• Strong skills around observability, debugging and performance tuning, willing to dive into understanding, debugging, and improving any layer of the stack.
• Strong experience in managing infrastructure with providers like AWS.
• Strong experience in Cloud Native technologies in kubernetes, docker etc.
• Basic knowledge of RDBMS systems like mysql.
• Understanding of networking protocols such as TCP/IP.

Preferred Qualification

• Expertise in automation tools like Ansible, Terraform.
• Expertise in devops tooling like Jenkins, ArgoCD, github actions
• Expertise in advanced observability (USE-RED signals, Tracing, front end observability etc) and monitoring stacks, preferably Grafana stack.
• Expertise in designing, analyzing, and troubleshooting large-scale distributed systems.
• Systematic problem-solving approach, coupled with effective communication skills and a sense of drive.
• Extensive experience in supporting production systems as SRE.
• Experience in setting up monitoring stack for process and docker based environments.

Apply Now: