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Senior Typescript Engineer Web3.js

ChainSafe Systems
$140k - $157k est.

This job is closed

ChainSafe is a blockchain research and development firm specializing in infrastructure and tooling for the decentralized web. Alongside its contributions to significant ecosystems such as Ethereum, Polkadot, Filecoin, and more, ChainSafe creates solutions for developers and teams across the web3 space utilizing our expertise in gaming, bridging, NFTs, and decentralized storage. As part of the mission to build innovative products for users and better tooling for developers, ChainSafe embodies an open-source and community-oriented ethos.

To learn more about ChainSafe, look at ourGitHubandwebsite.

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

  • Our progressive tech stack includes Go, Rust, and TypeScript
  • We spearhead ecosystem projects likeWeb3.js, Lodestar,Forest, andGossamer
  • We are global, remote-friendly, and open to contractors

At ChainSafe, you’ll be part of a team that believes in the community’s vital importance and contributes to advancing humanity with open-source and decentralized technology.

Who we need

We are looking for a passionate and proactive Senior Typescript Developer who shares our commitment to building out open source software and pushing blockchain into mainstream adoption. You will collaborate across multiple Ethereum-focused projects and contribute to your team's success through consistent, high-quality code.


  • Understand a protocol specification and develop compliant and optimized code
  • Actively follow latest EIPs
  • Actively participate in discussions with product owners, tests, and software engineers to suggest new or improve on existing solutions
  • Review, audit and test your teammates’ code
  • Provide feedback on overall design decisions

Required skills and experience

  • 3+ years of TypeScript programming language, paradigms, constructs, and idioms
  • Experience with Ethereum blockchain
  • Able to write efficient code and have good debugging skills
  • Experience in writing unit and integration tests
  • Experience in working and contributing to opensource projects
  • Knowledge of best practices, patterns, and understanding of key principles of developing software
  • Knowledge and application of semver versioning

Nice to have

  • Experience with distributed systems, peer-to-peer systems, network programming, or cryptography
  • Experience maintaining a large monorepo codebase with many components and keeping it well-designed, future-proofed, and modular
  • Can construct and maintain CI/CD pipelines
  • Experience with testing frameworks ( Jest, cypress )
  • Experience with different web bundlers (webpack, esbuild, browserify)

Tell us who you are

If you feel like you’re the perfect fit for the role, please apply even if you don’t match all the requirements.

Hiring Steps

  • Qualified candidates will be invited to a 30-minute screening call with one of our tech recruiters
  • Next, candidates will be invited to a 60-minute alignment interview
  • Then, Candidates will be asked to complete a technical task that takes under 4 hours, but we provide up to 1 week to complete
  • Last, candidates will be invited to a 60-minute technical interview

Why Join ChainSafe

Founded by developers for developers, ChainSafe is a remote-first company with an international team. We continue to provide opportunities for personal and professional growth, value autonomy and responsibility, have a results-driven environment, and offer flexible work hours.

We care deeply aboutour valuesand look for these attributes in every new team member. In addition, we recognize the benefits of cultivating a diverse team and aspire to embed respect for all people into our culture. We encourage women, the LGBTQIA+ community, people of color, and members of any other group underrepresented in the tech space to apply.

How to ApplyPlease fill out the Greenhouse application form below and ensure that you attach your resume and link your Github/Gitlab profile or any software project you have contributed to (if applicable).