Senior TypeScript Engineer - Web3js (CET/EST)

Building the infrastructure for Web3

ChainSafe is a multi-chain research and development firm specializing in protocol engineering, security audits, cross-chain interoperability and web3 gaming.

Our goal is to advance blockchain technology through open-source innovation, making it more accessible, secure, and sustainable. Since our establishment in 2017, our efforts have consistently pushed the boundaries of what's achievable in the blockchain sector.

ChainSafe has worked on maintaining stable alternative implementations, enhancing functionality, and driving adoption of top protocols like Ethereum, Filecoin, and Polkadot - playing a role in creating and securing over 230 Billion USD in combined value measured by market capitalization of these protocols.

To learn more about ChainSafe, you can look at our GitHub profile.

Here’s what you might want to know before reading on:

• We are at the forefront of blockchain innovation, having initiated significant projects such as spinning up the Goerli network in 2018 and leading the migration of Ethereum to Proof of Work.
• We advocate for public goods as all our work is open-source and widely recognized in the Web3 research community.
• We work with more than 10 blockchain ecosystems and Secure more than $1Bn of transaction volume.
• We lead ecosystem projects like Web3.js, Lodestar, Forest, and Gossamer.
• We are a global, remote-friendly organization that is open to working with contractors.

At ChainSafe, you will be part of a team distributed across 35+ countries, focused on contributing to advancing humanity through open-source and decentralized technology. Joining us provides a unique opportunity for a computer scientist to work with the only company offering cutting-edge open-source innovation across various domains within the blockchain industry. We develop 3 protocol clients, a gaming SDK for unity, a multi-chain bridge, run thousands of nodes for Lido Finance, and collaborate with innovative Web3 startups.

Who we need:

Web3js.org was created by one of the co-founders of Ethereum. We are seeking a passionate and proactive Senior TypeScript Developer who shares our commitment to building open-source software and driving blockchain into mainstream adoption. You will collaborate across multiple Ethereum-focused projects and contribute to your team's success through high-quality code. In your role, you will be the core maintainer of the oldest Web3 library, impacting millions of Ethereum developers.

Responsibilities:

• Actively participate in discussions and contribute to enhancing Web3js.
• Review, audit, and test teammate's code while addressing bugs reported by the community.
• Provide feedback on design decisions and develop compliant, optimized code based on protocol specifications.
• Stay updated with the latest Ethereum Improvement Proposals (EIPs).

Required skills and experience:

• Strong experience in TypeScript programming language (over 5 years).
• Proficiency in debugging, code reviewing, and software development life cycle.
• Hands-on experience in open-source projects.
• Knowledge of best practices, design patterns, and software development principles.

Nice to have:

• Experience in distributed systems, peer-to-peer systems, network programming, or cryptography.
• Experience in maintaining large mono repo codebases and setting up CI/CD pipelines.
• Familiarity with testing frameworks and web bundlers.
• Experience with Ethereum or EVM-compatible blockchains.
• Understanding and application of semver versioning.

Tell us who you are: If you believe you are a suitable fit for this role, please apply, even if you do not fully meet all the requirements. Your previous projects and notable commits are of interest to us.

Hiring Steps:

• Screening call with one of our tech recruiters.
• Technical assignment for debugging evaluation.
• Interview with Web3js project manager.
• Final Technical Interview.

Why Join ChainSafe:

Founded by developers, we are a remote-first company with a global team. We provide opportunities for personal and professional growth, emphasize autonomy, have a results-driven environment, and offer flexible work hours. We value diversity and inclusivity in our team and encourage individuals from underrepresented groups in the tech space to apply.

How to Apply:

Please fill out the Greenhouse application form and ensure that you attach your resume and link your GitHub/Gitlab profile or any software projects you have contributed to.