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Full time - permanent role - Paris or full remote from Western EU - 58-70k€ + shares
We’re looking for a Back-end Engineer at Kiln. We are maintaining about 26 protocols.
In this role, you’ll be responsible for:1) Building the product: You’ll be working closely with the Product and Infrastructure teams to plan, architect, and implement our core product. You’ll take part in the construction of the roadmap with the rest of the team. In this role, it includes:
Development of data aggregators for blockchains
Development of new Golang microservices within the Kiln stack
Taking part in automation & deployment processes
Framework development
2) Owning what you build: As you architect, test, and refine the Kiln platform, you will ensure that our services communicate with each other seamlessly, have minimal downtime, and recover quickly (daytime, no on-calls)
3) Helping grow the Team: Everyone on the early team plays an important role in attracting, closing, and growing other talented team members. You can also mentor or brainstorm with other backend developers.
Our stack
Mostly in Golang with a bit of JavaScript and TypeScript
Communication between services is done using HTTP Rest, and most of our databases are backed by PostgreSQL
Everything runs in Kubernetes on GCP
Skills & background
Strong communication skills both in French & English to facilitate the design of scalable architectures with SREs
French can be a "nice to have" if you have several professional web3 experiences
Golang (over 1 year of experience)
Over 4 years of experience designing, building, and deploying user-facing, infrastructure-related, and/or API-based products (Python, PHP...)
Experience coding in JavaScript and TypeScript is a plus
Experience working with container technologies such as Docker, Kubernetes, and Continuous Integration is a plus
Familiarity with CGP is a plus
Soft skills
Curiosity and the ability to dig into a topic and follow through
Team spirit: discuss, do not try to impose
Be pragmatic to not over-engineer unnecessarily: startups need to quickly adapt
Own what is coded and shipped to production
Trust & clear communication
Real interest in the blockchain and cryptocurrency space
Kiln is the leading enterprise-grade rewards platform that enables institutional customers to stake assets and integrate staking & DeFi functionality into their offerings. Our API-first platform provides fully automated validators, staking & DeFi protocols access, and comprehensive data and commission management.
With $11+ billion in crypto assets staked through our platform, Kiln has established a strong presence on Ethereum, managing over 4.5% of the network through 50,000+ validators — all with zero slashing events.
Kiln serves more than 140 leading customers, including Binance, BitPanda, Bitgo, Fireblocks, VanEck, and TrustWallet.
Our team of 92 ecosystem enthusiasts brings experience from industry leaders like Google, Circle, Ledger, Chainalysis, and other prominent technology and cryptocurrency companies.
We've raised $30M in total funding from prominent investors including 1kx, Crypto.com, Illuminate Financial, Consensys, Wintermute, Kraken Ventures...
Join Kiln and help us make the web more secure, stable, decentralized, and fair!
At Kiln, our values drive us: Technical Excellence ensures top security and usability; Innovation-Driven Meritocracy elevates groundbreaking ideas; Trust and Transparency build reliability through open communication; and People First keeps our team and clients at the heart of everything we do.
A fast-paced, bureaucracy-free work environment
Equity share options in the business: if Kiln succeeds, we all succeed!
Competitive salary
Flexible holiday
Flexible remote working
Choose your IT equipment
Contribution to Internet connexion
Significant personal development budget (books, training)
Overseas tech conferences budget
Kiln is an Equal Opportunity Employer
We are committed to fostering an inclusive and diverse workplace where everyone is valued and respected. We welcome applications from all backgrounds, including women or persons with disabilities.
Our thorough process ensures the best fit for both you and Kiln, and we strive to make each step valuable and efficient.
Recruiter's discussion (45 min) with Myriam
Take-home test (< 3 hours)
Technical Interview (90 min)
Core Values Interview (45 min)
Founders Interview (30 min)
Offer!
Your personal information will be securely stored in our Applicant Tracking System (ATS) and will not be shared with external parties. We comply fully with GDPR regulations to protect your data and privacy.
Please note that we do not sponsor visas for persons without work authorization in your location. This role is for full-time employees only (no B2B or contractors). Thank you!
Apply Now:
At Shakepay, we’re on a mission to usher in the Bitcoin golden age. We’re reimagining financial services to give every Canadian their fair shake.Our culture is built around doing work that matters, winning as a team, and celebrating success. If you're the kind of person who values growth, shipping fast, and sharing your ideas openly with a group of like-minded people, come and build with us!About Shakepay Since 2015, we’ve been building the Shakepay app to make buying and earning bitcoin fast, easy, and secure. In 2022, we launched the Shakepay Card, allowing shakers to earn bitcoin rewards when they shop. Today, more than one million Canadians use Shakepay to grow their bitcoin savings and take control of their financial future. We’re regulated across all Canadian provinces and territories, and backed by renowned venture capitalists with a funding of $44M. We have a passionate, loyal, and growing community, and we’re looking for people who want to help us build something truly special. Director of Software Engineering We are entering a new age for financial services. Legacy banking products are built on old, decaying technology while new experiences are being constructed from the ground up. You will recreate how people are meant to build wealth. Bitcoin is enabling a world that could not previously be designed, and you will be the builders’ builder, empowering a team of passionate developers to deliver the best experience to our customers. What you'll be doing
Ensure engineers are productive, learning, and doing meaningful work Coordinate and direct projects, making detailed plans to accomplish technical and product goals Analyze technology, resource needs, and market demand, to plan and assess the feasibility of projects Interview and hire the best and brightest software engineers Mentor and grow individual contributors and managers, helping cultivate their careers Lead foundational, multi-discipline teams of engineers working on complex, full-stack projects with wide impact across the company Drive the strategy for how we test, validate, and safely deliver new features, balancing speed and stability across our web and mobile apps. Work closely with product, design, legal and customer support to deliver seamless user experiences Get your hands dirty: review code and contribute when it makes sense Contribute your fair share of memes to our #dev-null slack channels
Must-Haves
10+ years in software engineering, with 5+ years in leadership, including 2+ years leading leads Proven ability to scale teams and systems in high-growth environments Excellent collaboration and communication abilities to align cross-functional teams
Nice to have
Experience with Node.js, Typescript, React-Native, Postgres, Docker, Kubernetes, Kafka, Datadog Experience with building financial apps Bitcoin knowledge
Why join us?
Help shape the future of money: Be part of a team that's revolutionizing financial services in Canada, one sat at a time. Impact millions: As cryptocurrency continues to gain traction, our potential for growth is massive. You can help us bring Shakepay and Bitcoin to all Canadians. Grow your career: We’re growing, and so can you! We have programs in place to encourage continuous learning, growth, and development. Ideas, not titles: We want the best ideas to make their way through, no matter where they come from.
Perks and benefits
🤝 Be an owner - Every employee has stock options as part of their total compensation 🥅 Reach your goals - Yearly salary assessments 🦷 Health & wellness : Access to comprehensive health and dental coverage, including health and wellness spending accounts. 🌎 Remote-friendly: Work from anywhere in Canada, with optional access to our office spaces in Montreal and Toronto. 🆙 Level Up: A $2,000 annual budget for courses, certifications, and training to support your career growth. 🌴 Time off: 20 days of vacation per year. And if you use all your vacation, we give you a $1,000 bonus. 🐣 Parental leave: Enjoy a parental leave top up to 100% of your salary for 18 weeks. 🙌 Have fun together: quarterly team-specific or company-wide offsite to connect with each other
We understand that potential can be just as valuable as experience. If you're eager to learn, grow, and contribute to the mission but worry that you may not have the “right” experience, we still want you to apply. We encourage applications from everyone, regardless of background and life experience. We’re firm believers that a little bit of slope makes up for a lot of y-intercept. Fluency in English is required due to the percentage of English-speaking customers and the nature of our platform, which is available to all Canadians.
Apply Now:
CoW DAO is on a mission to protect Ethereum users from MEV and optimize trade execution across DeFi. We achieve this through the CoW Protocol, CoW Swap (a leading intent-based DEX aggregator), and the innovative MEV Blocker, which together help secure, aggregate, and route trades for optimal outcomes. We also fund values-aligned projects via the CoW Grants Program.
CoW Protocol is consistently ranked among the top DEX aggregators by monthly volume and is the largest intent-based exchange. Our MEV Blocker protects trades from harmful MEV extraction and is integrated across the Ethereum ecosystem. The CoW AMM is the only live AMM designed to protect liquidity providers from LVR (loss-versus-rebalancing).
With over 100 open-source repositories on GitHub, we’re transparent, community-driven, and deeply committed to the open-source ethos. Our real-time Dune Analytics dashboard showcases billions in cumulative trading volume and a rapidly growing user base. As we continue to scale, CoW DAO remains at the forefront of DeFi innovation, prioritizing security, efficiency, and decentralization.
Location: We are a fully remote team, and although we hire almost globally, there is a preference for this role to be based in Europe or remote +/- 4 hours CEST time
Please note we’re not hiring from the US, Australia, or New Zealand
Position: Full-time contractor
We need a Site Reliability Engineer who’s hungry for impact, loves building things from scratch, and enjoys keeping critical infrastructure running like a well-oiled machine. You’ll be working with a team that values autonomy, ownership, and a growth mindset—if that sounds like you, keep reading! 🚀
Hit that apply button and let’s chat! 🚀
Earn 5.000 USDC or USD with the refer-to-earn program. More details here.
Life within the CoW Protocol is an incredible adventure! We take pride in our collaborative approach, embracing autonomy and fostering a culture of big thinking and continuous growth. We value impact, ownership, simplicity, and team spirit. Plus, we’re all about feedback, coming together, and enjoying the journey along the way!
At CoW Protocol, we strive to create a space where everyone feels included and empowered. We believe that our products and services benefit from our diverse backgrounds and experiences. All qualified applicants are considered for positions regardless of race, ethnic origin, age, religion or belief, marital status, gender identification, sexual orientation, or physical ability.
About the Company: Shardeum is building a layer 1, EVM-based, linearly scalable, smart contract platform that provides low gas fees forever while maintaining true decentralization and solid security through dynamic state sharding. Shardeum aims to be a chain capable of onboarding over a billion people to the crypto revolution, while also democratizing accessibility to decentralization. Shardeum’s mission is supported by prominent Venture Capitalists in the blockchain space, and we are on track to become one of the most widely used and well known smart contract platforms in blockchain history.We encourage you to browse our website, Whitepaper, Discord and YouTube channel to learn more about the project. You can even try downloading our validator software and joining our Testnet. We encourage people of all backgrounds to apply. Your talent and potential is what matters most to us. Shardeum is committed to creating an inclusive culture.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 a highly talented, innovative Principal Blockchain Engineer that can take on a technical leadership role on highly complex, blockchain projects. 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 road maps for complex, Layer-1 blockchain projects. Manage individual projects, priorities, deadlines and deliverables with your technical expertise. Mentor and train other team members on design techniques, coding standards and best blockchain basics. Contribute to the architecture and implementation of complex software components on the blockchain. Take on end-to-end ownership of critical software components related to our L1. Design and develop innovative new consensus and protocol software. Ensure performance optimization, and making scalability / reliability improvements to the software. Resolve issues, debugging errors and fixing code to improve the reliability and security of Shardeum software components. The tech stack you will be using is: Nodejs, TypeScript, SQLite, Postgres, React and Vuejs. The development environment will be: Linux, Git, AWS, Docker and VS Code.
What We're Looking
Extensive experience designing, implementing and maintaining complex blockchain components. You know what high quality code looks like and know how to foster an environment that creates it. Fluency with algorithms and data structures. The ability to quickly learn new languages and technologies. The ability to write clean yet efficient code. The Creativity to come up with proof of concept from high level design, even in an often ambiguous environment. Self motivated to set priorities and methodically make progress toward 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 working on all levels of a Layer 1 blockchain. Experience with concurrency, parallelism and distributed systems. 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. Read the Bitcoin and Ethereum white papers.
We are building the infrastructure for Web 3.0. We are building the infrastructure for Web 3.0.
Apply Now:
VDEX is a fast-growing DeFi startup focused on building a decentralized perpetual exchange. VDEX is backed by Binance Labs and Gate Exchange and passed $10 million in volume last month.
Powered by Virtual Rollups, the VDEX architecture is designed to overcome the performance and cost limitations of traditional blockchain systems by allowing the users to trade with instant finality, ZeroGas fees and omnichain (trade among different chains without requiring any bridge).
VDEX offers competitive salary and generous equity/token.
Level: Mid to Senior
Ready to be pushed beyond what you think you’re capable of?
At Coinbase, our mission is to increase economic freedom in the world. It’s a massive, ambitious opportunity that demands the best of us, every day, as we build the emerging onchain platform — and with it, the future global financial system.
To achieve our mission, we’re seeking a very specific candidate. We want someone who is passionate about our mission and who believes in the power of crypto and blockchain technology to update the financial system. We want someone who is eager to leave their mark on the world, who relishes the pressure and privilege of working with high caliber colleagues, and who actively seeks feedback to keep leveling up. We want someone who will run towards, not away from, solving the company’s hardest problems.
Our work culture is intense and isn’t for everyone. But if you want to build the future alongside others who excel in their disciplines and expect the same from you, there’s no better place to be.
Coinbase is seeking aspiring backend engineers to join our team to build out the next generation of crypto-forward products and features. You will solve unique, large scale, highly complex technical problems, bridging the constraints posed by web-scale applications and blockchain technology. You will help build the next generation of systems to make cryptocurrency accessible to everyone across the globe, operating real-time applications with high frequency, low latency updates, and managing the most secure, dockerized infrastructure running in the cloud.
The Consumer Product Group engineers strive to make the Coinbase retail app the easiest-to-use and fastest experience for accessing the crypto. Wallet is the future of web3 and of Coinbase. Suite of products include: Coinbase app, advance trade, dapps, and staking.
Join Coinbase's Country Expansion team to influence the future of cryptocurrency adoption in the UK. Collaborate with the Country Director, Product Managers, and cross-functional teams to customize the Coinbase app, tailoring it to the UK market and strategically shaping Coinbase's presence through innovative features and a customer-first approach.
What you'll be doing:
What we look for in you:
Nice to haves:
Job #: GCBE03UK
Please be advised that each candidate may submit a maximum of four applications within any 30-day period. We encourage you to carefully evaluate how your skills and interests align with Coinbase's roles before applying.
Coinbase is committed to diversity in its workforce and is proud to be an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, creed, gender, national origin, age, disability, veteran status, sex, gender expression or identity, sexual orientation or any other basis protected by applicable law. Coinbase will also consider for employment qualified applicants with criminal histories in a manner consistent with applicable federal, state and local law. For US applicants, you may view the Know Your Rights notice here. Additionally, Coinbase participates in the E-Verify programin certain locations, as required by law.
Coinbase is also committed to providing reasonable accommodations to individuals with disabilities. If you need a reasonable accommodation because of a disability for any part of the employment process, please contact us at accommodations[at]coinbase.com to let us know the nature of your request and your contact information. For quick access to screen reading technology compatible with this site click here to download a free compatible screen reader (free step by step tutorial can be found here).
Depending on your location, the General Data Protection Regulation (GDPR) and California Consumer Privacy Act (CCPA) may regulate the way we manage the data of job applicants. Our full notice outlining how data will be processed as part of the application procedure for applicable locations is available here. By submitting your application, you are agreeing to our use and processing of your data as required. For US applicants only, by submitting your application you are agreeing to arbitration of disputes as outlined here.
Apply Now:
CoW DAO is on a mission to protect Ethereum users from the dangers of DeFi. It does this by supporting the development of CoW Protocol, CoW Swap, MEV Blocker, and CoW AMM, and by funding values-aligned projects through the CoW Grants Program.
CoW Protocol is the second-largest DEX aggregator by monthly volume and the first-largest intents-based exchange. MEV Blocker is currently involved in ~4% of all Ethereum transactions, making it the category leader. CoW AMM is the only live AMM that protects LPs from LVR (loss-versus rebalancing).
As a member of CoW DAO’s core team, you will have the opportunity to shape these essential products, and contribute to the Ethereum ecosystem more broadly.
Location: We are a fully remote team, and although we hire almost globally, there is a preference for this role to be based in Europe or remote +/- 4 hours CEST time
Please note we’re not hiring from the US, Australia, or New Zealand.
Position: Full-time contractor
We are looking for an enthusiastic, self-motivated, Senior Backend Engineer to help us build the next generation of decentralised trading protocols. As a dedicated backend engineer, you will gain ownership of our existing backend services and influence the creation, design, and execution of future features and products. You will work on technically challenging aspects of our off-chain services and our developer-facing APIs and help ensure the delivery of reliable and performant features to improve CoW Protocol.
Earn 6.000 USDC or USD with the refer-to-earn program. More details here.
Life within the CoW Protocol is an incredible adventure! We take pride in our collaborative approach, embracing autonomy and fostering a culture of big thinking and continuous growth. We value impact, ownership, simplicity, and team spirit. Plus, we’re all about feedback, coming together, and enjoying the journey along the way!
At CoW Protocol, we strive to create a space where everyone feels included and empowered. We believe that our products and services benefit from our diverse backgrounds and experiences. All qualified applicants are considered for positions regardless of race, ethnic origin, age, religion or belief, marital status, gender identification, sexual orientation, or physical ability.
Ready to be pushed beyond what you think you’re capable of?
At Coinbase, our mission is to increase economic freedom in the world. It’s a massive, ambitious opportunity that demands the best of us, every day, as we build the emerging onchain platform — and with it, the future global financial system.
To achieve our mission, we’re seeking a very specific candidate. We want someone who is passionate about our mission and who believes in the power of crypto and blockchain technology to update the financial system. We want someone who is eager to leave their mark on the world, who relishes the pressure and privilege of working with high caliber colleagues, and who actively seeks feedback to keep leveling up. We want someone who will run towards, not away from, solving the company’s hardest problems.
Our work culture is intense and isn’t for everyone. But if you want to build the future alongside others who excel in their disciplines and expect the same from you, there’s no better place to be.
We’re looking for Staff Software Engineers to balance the role of an individual contributor while also anchoring new projects, leading technical direction and mentoring other engineers on the team. We highly value individuals with intellectual curiosity and openness. We collaborate across the organization, helping our engineers think big and take risks while building a culture of diversity, positive energy and blameless truth-seeking. Our engineering team leverages a diverse tech stack and our focus is finding smart engineers who’ve worked on complex projects.
The Consumer Product Group engineers strive to make the Coinbase retail app the easiest-to-use and fastest experience for accessing the crypto. In 2023, our goal is to be the #1 self custody wallet measured by MTU’s and download share. Wallet is the future of web3 and of Coinbase. Suite of products include: Coinbase app, advance trade, dapps, and staking.
What you’ll be doing:
What we look for in you:
Nice to haves:
Job #: GCFE06CA
Pay Transparency Notice: Depending on your work location, the target annual salary for this position can range from $[Zone 3 Pay] to $[Zone 1 Pay] + target bonus + target equity + benefits (including medical, dental, vision and 401(k)).
Pay Transparency Notice: The target annual salary for this position can range as detailed below. Full time offers from Coinbase also include target bonus + target equity + benefits (including medical, dental, and vision).
Please be advised that each candidate may submit a maximum of four applications within any 30-day period. We encourage you to carefully evaluate how your skills and interests align with Coinbase's roles before applying.
Coinbase is committed to diversity in its workforce and is proud to be an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, creed, gender, national origin, age, disability, veteran status, sex, gender expression or identity, sexual orientation or any other basis protected by applicable law. Coinbase will also consider for employment qualified applicants with criminal histories in a manner consistent with applicable federal, state and local law. For US applicants, you may view the Know Your Rights notice here. Additionally, Coinbase participates in the E-Verify programin certain locations, as required by law.
Coinbase is also committed to providing reasonable accommodations to individuals with disabilities. If you need a reasonable accommodation because of a disability for any part of the employment process, please contact us at accommodations[at]coinbase.com to let us know the nature of your request and your contact information. For quick access to screen reading technology compatible with this site click here to download a free compatible screen reader (free step by step tutorial can be found here).
Depending on your location, the General Data Protection Regulation (GDPR) and California Consumer Privacy Act (CCPA) may regulate the way we manage the data of job applicants. Our full notice outlining how data will be processed as part of the application procedure for applicable locations is available here. By submitting your application, you are agreeing to our use and processing of your data as required. For US applicants only, by submitting your application you are agreeing to arbitration of disputes as outlined here.
Apply Now:
Caiz
Revolutionizing Islamic Finance with Blockchain Technology
Are you ready to be part of a groundbreaking initiative that combines Islamic finance principles with cutting-edge blockchain technology?
Look no further than Caiz– THE FIRST ISLAMIC ECOSYSTEM BUILT ON BLOCKCHAIN.
At Caiz, our mission is clear: to create a Fiqh compliant financial ecosystem that provides our community with fair and easy access to ethical financial products and services. We believe in empowering individuals to build a strong financial future while engaging in long-term economically beneficial behavior.
Our native coin, Caizcoin, that fuels the Caizblockchain. With Caizcoin, you can make seamless payments, store value, and interact with a range of ethical financial products we are developing. The centerpiece of our ecosystem is the innovative Caizapp, giving users complete control over their digital assets.
We are a passionate team reshaping finance, and we are expanding our dynamic workforce. Join us in a collaborative work environment focused on creating a fast and compliant money transfer structure.
WHY TO JOIN Caiz?
AI/ML Backend Developer (Blockchain-Focused) Job Summary:
We are seeking a talented AI/ML Backend Developer to design and implement AI-driven features into our blockchain ecosystem. You will be responsible for building and deploying machine learning models, managing large-scale data pipelines, and working closely with our blockchain engineering team to deliver intelligent backend services.
Responsibilities:
Experience:
Nice to Have
Level of studies: Bachelor’s or Master’s degree in Computer Science, Artificial Intelligence, Data Science, or related field.
Language Requirements: Fluent in English
BENEFITS AT Caiz :
Don't miss this opportunity – apply now and be part of the CAIZ revolution.
Apply Now:
About Wildcat
Wildcat is an Ethereum protocol revolutionizing on-chain credit with an innovative, undercollateralized borrowing solution. Our mission is to lead this market by enabling borrowers to create, customize, and manage credit facilities in a more transparent, efficient, and secure environment. Borrowers can tailor their credit demand to suit their needs. Designed for sophisticated participants in both traditional finance (TradFi) and DeFi, Wildcat is committed to transforming on-chain credit and unlocking more efficient, customized solutions in decentralized finance.
Working for Wildcat
As a Full-Stack Developer, you will be driving the technical evolution of Wildcat’s undercollateralized lending platform. You’ll work across the front-end and back-end while integrating Ethereum smart contracts to deliver an intuitive, secure, and high-performance user experience. Leveraging your experience in agile development and DeFi best practices, you will play a central role in shaping the platform’s architecture, features, and scalability. You’ll collaborate closely with the founding team, product manager, and other developers to ensure Wildcat remains at the forefront of on-chain undercollateralized credit innovation.
Responsibilities
Front-End Development
Back-End Development
Testing Setup
Integration with Ethereum
Requirements
What We Offer
Apply Now:
Quantitative Software Engineer
Globally Remote / Engineering / DeFi ProtocolWe are building a cutting-edge delta-neutral trading protocol that captures volatility and yield across BTC, ETH, and liquid altcoins through advanced basis trading, OTC liquidity strategies, and perpetual derivatives.
By combining market-neutral strategies and innovative hedging solutions, we provide unparalleled capital efficiency for institutional and advanced traders. Our team has deep experience from leading crypto protocols, traditional finance firms, and exchanges, backed by top-tier investors and partners. We are creating the next generation of yield-optimised trading infrastructure for the digital asset markets.
We are pioneering a delta-neutral, volatility-driven trading infrastructure designed to enable scalable exposure to major digital assets while managing directional risk. Our protocol integrates:
This platform is tailored to institutions, treasuries, and sophisticated market participants looking for capital-efficient yield in the crypto space.
We are seeking a Quantitative Software Engineer who is excited to work at the intersection of financial innovation and frontier technology. You are a problem-solver who thrives in a fast-paced, zero-to-one environment and have a passion for designing sophisticated trading systems.
You will play a pivotal role in building and optimising the internal trading and arbitrage platform, enabling automated delta-neutral strategies that scale across both centralised exchanges and DeFi markets.
The Quantitative Software Engineer will develop and maintain a high-performance internal trading and arbitrage platform. You will design automated delta-neutral derivative strategies, integrate with smart contracts, and collaborate across teams to deliver robust trading solutions for real-world market conditions.
If you are passionate about building automated delta-neutral strategies, low-latency systems, and cutting-edge trading solutions, this is your opportunity to make a real impact. Join us as we transform how institutions capture volatility and yield in the crypto markets.
Apply now and help redefine the future of decentralised capital efficiency.
SalesBox was founded in 2014 with n intent on enabling sales traction for large technology companies while lowering the cost of sales. Today, we deliver high quality demand generation solutions for companies such as Microsoft, SAP, Dell, Marketo, Symantec, Sitecore, Sage and many more.
Skills and Qualifications
· Worked on at least 1 blockchain platform like Hyperledger, Stellar, Ethereum, Multichain, Corda and hands on experience in any other block chain network is a warm welcome.
· Able to write smart contracts in GoLang or solidity/ serpent, programming paradigms intricacies,
· Encryption techniques used in blockchain and upcoming release knowledge are preferred.
· Hands on experience in HTML,CSS3, React JS and relevant web stacks are highly appreciated for stack compatibility.-
· Knowledge on building ERC-20 token interfaces to 3rd party dApps is also preferred
· Knowledge of ICO, Wallets, Exchanges, Tokens in Ethereum/Stellar will be an added advantage
· Object-oriented, Event-driven, functional programming
Requirements:
Experience : 3 to 5years
Education : Bachelors Degree and relevant experienceIndustry Type : TechFunctional Area : DevelopmentProgramming Languages:
· Java,Spring J2EE Framework, Node JS
· UI Scripting: Object Oriented Javascript like Angular JS
· Data LayerModern databases :
· Understand Relational, Key- value, Columnar, Document, Graph.
· Good Linux scripting
· Deployment : Docker basic commands
· Knowledge of source version control tool
· Should be well versed with SW development & delivery lifecycle
· A good team player having troubleshooting and problem-solving skills.
Apply Now:
🚀 Join the Future of Commerce with Whatnot! Whatnot is the largest livestream shopping platform in North America and Europe to buy, sell, and discover the things you love. We’re re-defining e-commerce by blending community, shopping, and entertainment into a community just for you. As a remote co-located team, we’re inspired by innovation and anchored in our values. With hubs in the US, UK, Ireland, Poland, and Germany, we’re building the future of online marketplaces—together. From fashion, beauty, and electronics to rare collectibles like trading cards, comic books, and even live plants, our live auctions have something for everyone. And we’re just getting started! As one of the fastest growing marketplaces, we’re looking for bold, forward-thinking problem solvers across all functional areas. Check out the latest Whatnot updates on our news and engineering blogs and join us as we enable anyone to turn their passion into a business, and bring people together through commerce. 💻 Role
Maintain an efficient CI/CD pipeline to help developers ship the software faster and safer in a structured environment. Build local environment tooling to enable the engineering team to build and test product features swiftly and safely. Work with the engineering team to get services deployed across different environments. Implement and optimize developer workflow to reduce friction and increase productivity. Providing recommendations for architecture and process improvements.
Team members in this role are required to be within commuting distance of our San Francisco, CA, Los Angeles, CA, New York, NY, or Seattle, WA hubs. 👋 You Curious about who thrives at Whatnot? We’ve found that low ego, a growth mindset, and leaning into action and high impact goes a long way here. As our next Developer Tooling Engineer, you should have 5+ years of developer productivity or similar experience, helping build scalable systems that can handle millions of users, plus:
Bachelor’s degree in Computer Science, a related field, or equivalent work experience. Excellent developer experience instincts. You first think about engineer experience rather than the best technical solution. Previous experience at a hyper-growth startup. You’re a self-starter who can hit the ground running with little direction. Prior experience in a public cloud environment (AWS, GCP) using Kubernetes, Docker, and/or Terraform. Expert knowledge of various CI/CD workflows. Exceptional coding skills and the ability to ship lightning-fast. We primarily use Python and Elixir, but previous knowledge of each is not required. Excellent communication and writing skills.
💰Compensation For Full-Time (Salary) US-based applicants: $185,000 - $245,000/year + benefits + equity The salary range may be inclusive of several levels that would be applicable to the position. Final salary will be based on a number of factors including, level, relevant prior experience, skills and expertise. This range is only inclusive of base salary, not benefits (more details below) or equity. 🎁 Benefits
Flexible Time off Policy and Company-wide Holidays (including a spring and winter break) Health Insurance options including Medical, Dental, Vision Work From Home Support
Home office setup allowance Monthly allowance for cell phone and internet
Care benefits
Monthly allowance for wellness Annual allowance towards Childcare Lifetime benefit for family planning, such as adoption or fertility expenses
Retirement; 401k offering for Traditional and Roth accounts in the US (employer match up to 4% of base salary) and Pension plans internationally Monthly allowance to dogfood the app
We expect all employees to actively use the product!
Parental Leave
16 weeks of paid parental leave + one month gradual return to work *company leave allowances run concurrently with country leave requirements which take precedence.
💛 EOE Whatnot is proud to be an Equal Opportunity Employer. We value diversity, and we do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, parental status, disability status, or any other status protected by local law. We believe that our work is better and our company culture is improved when we encourage, support, and respect the different skills and experiences represented within our workforce.
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Blockstream was founded in 2014 by Dr. Adam Back and a group of fellow cryptographers and engineers passionate about Bitcoin and its potential to change the future of finance. Focusing on building fundamental Bitcoin infrastructure, Blockstream quickly grew into one of the leading technology power houses of the industry. At Blockstream, we’re building solutions on Bitcoin that will disrupt the existing financial system. We imagine a world where individuals and businesses can easily access a global, permissionless system to secure their money, use it every day, and invest it or put it to work. In pursuit of our expansive vision, we’ve built a full stack of innovative products on top of the Bitcoin protocol, from layer-2 projects like Liquid and Core Lightning, to end-user software and hardware wallets like Green and Jade. Our brand stands for innovation in the Bitcoin community, and we’re growing our team to accelerate the future. Blockstream is looking for Software Engineers to work on our enterprise custody solution. You’ll design and maintain scalable end-to-end systems that serve APIs and SDKs, and work on everything from database architecture to cloud-based deployments. What You’ll Be Doing (Responsibilities):
Design, develop, and maintain scalable end-to-end systems that serve APIs and SDKs. Full stack software development, from database architecture to cloud-based deployment. Optimize system performance and security to support high-availability applications. Collaborate with cross-functional teams, including front-end developers, product managers, and hardware engineers to deliver seamless solutions. Implement best practices in software development, including CI/CD, automated testing, and code reviews. Research and integrate emerging technologies to enhance security and system efficiency. Troubleshoot and resolve complex software issues in a fast-paced development environment. Mentor junior developers and contribute to team knowledge-sharing efforts.
What We Look For In You (Required Qualifications):
5+ years of experience in full-stack software development, with a focus on backend engineering. Proficiency in backend technologies such as C++, Python, Rust, Node.js or Java. Strong experience in designing and building RESTful APIs and SDKs. Hands-on experience with cloud platforms (AWS, Azure, GCP) and containerization (Docker, Kubernetes). Deep understanding of database technologies, including SQL (PostgreSQL, MySQL) and NoSQL (MongoDB, Redis). Familiarity with authentication and security best practices, including OAuth, JWT, encryption, and access control. Experience with CI/CD pipelines, automated testing, and DevOps tools. Strong problem-solving skills and ability to work independently or as part of a team. Excellent communication skills, with the ability to explain technical concepts to non-technical stakeholders.
Nice To Haves (Preferred Qualifications):
Experience with Bitcoin, blockchain technology, or cryptography. Open-source software development experience. Bachelor’s or Master’s degree in Computer Science, Engineering, or a related field (or equivalent experience). Experience with system/software architecture.
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BitGo is the leading infrastructure provider of digital asset solutions, delivering custody, wallets, staking, trading, financing, and settlement services from regulated cold storage. Since our founding in 2013, we have focused on enabling our clients to securely navigate the digital asset space. With a global presence and multiple Trust companies, BitGo serves thousands of institutions, including many of the industry's top brands, exchanges, and platforms, and millions of retail investors worldwide. As the operational backbone of the digital economy, BitGo handles a significant portion of Bitcoin network transactions and is the largest independent digital asset custodian, and staking provider, in the world. For more information, visit www.bitgo.com.Responsibilities:
Deeply understand how developers use Node.js and TypeScript at BitGo to create optimal solutions and abstractions for their use cases, driving and evolving recommended practices. Design, build, and optimize scalable platform services and Node.js-based tooling to support BitGo’s high-performance custody, wallet, and financial services platforms. Provide and integrate the libraries, frameworks, and workflows that enable developers to build software efficiently within the BitGo ecosystem. Develop tools and workflows to improve engineering velocity, including deployment pipelines, testing frameworks, and service abstractions. Continuously improve operational excellence through a culture of learning and proactive investments in reliability and resiliency. Collaborate with cross-functional teams to establish and maintain standards for API design, platform performance, and overall system architecture.
Required:
Deep expertise in Node.js, npm, and TypeScript, with a focus on developing reliable backend systems. Strong experience designing and implementing RESTful APIs and familiarity with API lifecycle management. Strong testing and debugging skills. Proficient with Git, CI/CD tools, and agile development practices. Excellent problem-solving skills, algorithm design, and complexity analysis. Bachelor’s degree in computer science, mathematics, or a related technical field.
Preferred:
Experience with microservices and service-oriented architectures. Knowledge of containers and orchestration platforms (Docker, Kubernetes). Experience improving developer productivity through internal tooling or frameworks. Familiarity with event-driven architecture and experience with event streaming platforms like Kafka. Ability to create clarity and drive alignment across stakeholder groups. A curious and proactive learner.
Why Join BitGo? Disrupting an industry takes vision, innovation, passion, technical chops, drive to deliver, collaboration, and execution. Join a team of great people who strive for excellence and personify our corporate values of ownership, craftsmanship, and open communication. We are looking for new colleagues who bring innovative ways of thinking and problem solving, and who want risks to be part of the team that changes the world's financial markets. Here are some of the benefits* of working at BitGo:
Competitive base salary, bonus and stock options 100% company paid health insurance for employee, partner and dependents Paid parental leave, Paid vacation Computer equipment and workplace furniture to suit your needs Great colleagues and inspiring startup environment *Benefits may vary based on location
Cryptocurrencies are the most disruptive change the financial services industry has seen in years. Join us and you'll be able to look back and say you were part of the team that transformed investing. This role will require being full-time onsite at our Toronto office to support collaborative team dynamics and innovative problem-solving.
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Who are we? FalconX is a pioneering team of operators, investors, and builders committed to revolutionizing institutional access to the crypto markets. Operating at the intersection of traditional finance and cutting-edge technology, FalconX addresses the industry's foremost challenges: Navigating the digital asset market can be complex and fragmented, with limited products and services that support trading strategies, structures, and liquidity found in conventional financial markets. As a comprehensive solution for all digital asset strategies from start to scale, FalconX operates as the connective tissue empowering clients with seamless navigation through the ever- evolving cryptocurrency landscape.Responsibilities
Be part of a devops team, dedicated to building internal platforms. Work closely with internal teams to improve the system reliability, scalability and developer productivity 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. Preferably 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 cloud providers like AWS. Experience in container orchestration systems like kubernetes. Strong experience in Observability platforms like Prometheus, Grafana etc Experience in standards devops tools for infrastructure management (terraform/opentofu etc), CI/CD (ArgoCD, Jenkins etc)
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. Notice at Collection and Privacy Policy Applicants located in California and/or applying to a role based in California, please refer to our Notice at Collection and Privacy Policy here. Inclusivity Statement FalconX is committed to building a diverse, inclusive, equitable, and safe workspace for all people. Our roles are intended for people from all walks of life. We encourage all those interested in applying to our organization to submit an application regardless if you are missing some of the listed background requirements, skills, or experiences! As part of our commitment to inclusivity, FalconX would like to acknowledge that the EEOC survey has limited potential responses that you can select. For legal reasons, FalconX must use this language to align with federal requirements, however, we want to ensure that you are able to provide a response to our own voluntary survey questions about your identity that best aligns with your most true self. FalconX is an equal opportunity employer and will not discriminate against an applicant or employee based on race, color, religion, national origin, ancestry, ethnicity, sex (including gender, pregnancy, sexual orientation, and gender identity), age, physical or mental disability, veteran or military status, genetic information, citizenship, or any other legally-recognized protected basis under federal, state, or local law. Applicants with disabilities may be entitled to reasonable accommodation under the Americans with Disabilities Act and other applicable state or local laws. A reasonable accommodation is a change in the way things are normally done which will ensure an equal employment opportunity without imposing undue hardship on FalconX. Please inform FalconX’s People team at email, if you need assistance with participating in the application process.
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We are OpenCover — our mission is to keep the world safe onchain.
OpenCover operates at the intersection of blockchain security and insurance. Working in tandem with leading underwriters and industry players, we protect individuals, businesses and institutions against onchain risks such as malicious transactions, smart contract exploits and depegs.
Founded by Y Combinator alums, our team is backed by Tier 1 investors including Alliance, Coinbase Ventures (Base Ecosystem Fund), NFX, Village Global and Orange DAO, with support from the Lloyd’s of London Lab.
Want to join a high-performance, high-integrity team taking onchain safety to the next level? Read on.
You would join the founding team to develop core backend infrastructure working closely with our CTO. Your role would focus on expanding the first transaction security layer to insure billions in value. The work involves collaborating with top protocols and industry players to prevent incidents like the ByBit hack from ever happening again.
Head to opencover.com/apply/bbe and get shortlisted in 10 minutes or less.