Senior front end Web3 engineer with React and Solidity

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We are recruiting a senior front end engineer with experience of Web3, React and Solidity and Ethereum for a remote role with our client, a U.S.-based fintech.

You would help develop, improve, extend, and productize the system our customer has designed. This means working closely with our customer’s existing engineering team of smart contract engineers. You will have significant ownership over the user experience and can work on designing new products by implementing a beautiful front end in a reliable and secure manner.

The project/product

Our customer’s protocol is a noncustodial, peer-to-peer, permissionless lending, borrowing and trading system implemented for the Ethereum Virtual Machine that requires no governance or external price feeds to function. They are a team of relentless builders who are very passionate about DeFi.


  • Focusing on the frontend vision and implementation of the customer user experience, with attention to performance, maintainability, and user experience.
  • Driving architecture decisions for critical UI flows.
  • Building new product features from conception to completion.
  • Work closely with other engineering and business stakeholders to ensure a consistent, high-quality user experience.
  • Rapidly and elegantly implement functional UI features from design mocks, with an eye toward performance, scalability, and accessibility.

About you:

  • A clear communicator who’s able to express complex ideas and execute.
  • Enjoys solving real world problems, working within uncharted territories.
  • A strong sense of ownership, with the ability to lead and guide others to reach solutions.
    Thrive in a distributed environment, with the ability to build relationships across the community.
  • See value in testing, instrumenting, and documenting your work.
  • Passionate about the blockchain industry with the desire to learn more, specifically within a DAO in the DeFi space.

What’s in it for you

  • Be part of an ecosystem that encourages transparency and alignment with open source methodologies and principles.
  • Work remotely in a highly collaborative team consisting of industry experts.
  • Competitive compensation.

What you will need

  • 3-4 years of React experience.
  • Experience with TypeScript.
  • Solid understanding of HTML, CSS, and Javascript fundamentals.
  • Experience writing automated tests.
  • Experience with ethers.js/web3.js, crypto wallet integrations, event listeners, and interacting with blockchain contracts.
  • Knowledge of common UI development design patterns, industry standards and best practices.
  • Understand optimal solutions to blockchain UX problems like fetching and indexing on-chain data.
  • Experience with GraphQL and blockchain indexing solutions like Graph Protocol.
  • Proven experience building frontends for smart contracts deployed to Ethereum main net and/or Ethereum Layer 2 networks.

Nice to haves

  • Broad understanding of traditional finance, currency, and money markets and can bridge this knowledge to DeFi.
  • Advanced quantitative skills (degree in CS or physical science, or similar experience).
  • Familiar with Solidity at a high level.
  • Past experience working at a reputable DeFi or blockchain projects.
  • Experience with Ethereum Layer 2 networks and bridging assets between them.
  • Good understanding of multichain protocols.
  • Experience working remotely.

Why join the K&C team and this project?

  • German IT company with HQ in Munich
  • 23 years history
  • Competitive compensation;
  • Talented team without hierarchies
  • 20 workdays of vacation per year, 15 days of paid sick leave;
  • Fulltime remote work anywhere within the EU or Azerbaijan is possible; as is being based in one of our offices in Krakow or Sofia if you prefer an office environment or hybrid
  • Flexible working schedule

Sounds interesting? We are excited to get to know you!

If you have any questions you would like to ask or if there is any additional information you would like to receive, please feel free to get in touch via either [email protected] or the contact form at the bottom of this page.


Working with K&C

K&C has a win-win organisational culture –
we know we only succeed when our team members do too!

K&C is an international software development company with 100+ experts split between our offices in Munich (HQ) Kyiv, Krakow, Sofia, Baku and Sulaimaniya. We provide consulting and direct services for the complex IT-Projects of major European clients such as Commerzbank, Nestle, Bosch, Raiffeisen, METRO, DER Touristik, Lufthansa and others.

At K&C we work with different projects — websites, portals, platforms, mobile (iOS, Android), intranet-systems. The combination of our expertise in cutting-edge technologies, 15 years’ collaborative experience with leading European clients, and a friendly and productive work environment has enabled us to turn traditional IT outsourcing into a reliable and competitive product.

Raft building in Bavaria

Send us your CV and
Cover Letter

K&C (Krusche & Company GmbH)

St.-Pauls-Platz 9

80336 Munich


[email protected]

+49 89 4161 7569-00

Senior front end Web3 engineer with React and Solidity

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