Frontend Engineer

Company Name
Interlay Ltd.
Company Website
Contact email
Nov 01, 2022
Full time

About us

Interlay is building the safest and easiest way to use Bitcoin in decentralized finance. 

DeFi for Bitcoin: a one-stop-shop for all things Bitcoin finance, including trading, lending, and staking. And, Bitcoin for DeFi: iBTC, a decentralized 1:1 Bitcoin-backed asset for the multi-chain ecosystem.

Interlay's mission is to accelerate Bitcoin mass adoption by providing the necessary, trust-free (financial) infrastructure and of a community-owned financial system, through hype and FUD.


We are looking for a Frontend Engineer that can help us build the leading Bitcoin DeFi network: Interlay. You will enable us to ship new features to our community, improve the usability of our dapp (, and contribute to our open-source React UI (

You are our perfect candidate if you have a strong track record in the blockchain space of implementing UI components and business logic in a front-end library such as React, Vue, Next.js and have experience with GraphQL. You enjoy using TypeScript and are a passionate software engineer that cares deeply about shipping the product and writing maintainable code with tests. You are eager to push the frontiers of web3, DeFi, and cross-chain technologies together with a team that delivers the cutting edge of BTC bridging.

What you will do

  • Implement new features for our Interlay network to increase its DeFi capabilities (includes bridges, lending, and an AMM) in our React-based front-end application (

  • Improve our automated testing suite for the frontend to enable us to ship faster

  • Prioritize and coordinate new features including integrations with other projects and novel research together with the team

  • Review pull requests of other team members and give constructive feedback to refactor/improve our current implementation

  • Drive our open-source efforts to release useful libraries back to the open-source community


  • Proven 5+ years experience in implementing and maintaining front-end projects (React, Vue, Next.js, ..) projects ideally in TypeScript

  • Proven experience or strong desire working with web3 technologies (polkadot.js, ethers.js, …)

  • Proven ability to improve the life of users: iterate fast and ship the product to the community as often as possible

  • Thorough application of testing best practices and CI/CD understanding

  • Enjoy working in agile teams by applying outstanding communication and planning skills

“Nice to have”

  • You have implemented GraphQL queries before

  • You have experience in testing automation and devops tools such as Vercel, Docker, Datadog, ...

  • Prior work with libraries we use including polkadot.js and/or ethers.js

Benefits and Perks

  • Research-oriented team

  • Solve novel problems

  • Stock options

  • Remote working

  • 30-day vacation

  • Allowance for a co-working space

  • Yearly retreat

    **Salary range £95k-£120k