Senior Full Stack Engineer; Back-End Oriented

Senior Full Stack Engineer (Back-End Oriented)

Posted: 26/11/2025
Anywhere in the world
Remote
Senior

As pioneers in blockchain scalability and security, we're at the forefront of transforming how the world interacts with decentralized applications. We're laying the foundation that will define the next generation of digital commerce, governance, and human interaction. This involves tackling real-world challenges that come with scaling blockchain technology, without compromising on its core principles: decentralization, security and transparency.

• Work on Node.js back-end services focused on blockchain, Ethereum scaling with Arbitrum, on-chain apps, and more
• Work on developer tooling and SDKs that will help people build awesome products
• Keep up-to-date on the latest technologies and developments in the space
• Communicate in a style that is open, transparent, and direct, and consistently work in tight collaboration both with your teammates and other teams
• Look for ways to help out beyond the scope of your day-to-day work

• 5+ years of hands-on full-stack engineering experience
• Mastery of CS fundamentals, either through a formal university program or through self-learning
• Expertise in building secure, stable and scalable Node.js back-end services and an understanding of cloud infrastructure necessary to power said services
• Experience designing SDKs with clean and intuitive APIs, and similar developer tooling
• Experience with Web3, Ethereum, and tooling such as Viem or Ethers
• A track record of successfully shipping products to customers
• A strong sense of ownership in your work, which drives you to find ways to do things better and faster
• A detail-oriented approach to work, always making sure to output high-quality work through rigorous testing
• A security-first mindset, proactively identifying and addressing potential vulnerabilities in code
• A curious mind, constantly on the lookout for new technologies and innovative ways to solve complex problems through experimentation
• A collaborative, open communication style, with a willingness to embrace feedback and pursue continuous self-improvement
• Annual company offsite + team onsites
• Professional reimbursement program (facilitates industry conference attendance, certifications, and more)
• Medical, dental & vision coverage (US + some other countries)
• 401k retirement plan + company match (US only)
• Wellness stipend
• Home office set up / ergonomic equipment program

This role cannot be performed in California, or Colorado.

Please be advised that there has been a rise in fraudulent recruiter activities, particularly within the Web3 space. If you would like to confirm whether someone is an OCL employee or the legitimacy of an offer you received, please

At Offchain Labs, we are committed to building a welcoming and supportive workplace for all employees, regardless of their background or identity. We strive to create an environment where everyone feels valued and has an equal opportunity to succeed and thrive. We encourage candidates from all walks of life to apply and join our team.

We're contributing to Arbitrum and Prysm to scale Ethereum.