Create New Account
Sign up to continue searching for suitable jobs in Web 3.0

Terms of Use
Already have an account?

Log In to Your Account
Log in to continue searching for suitable jobs in Web 3.0

Don’t have an account?
Frontend Developer
at Kleros
over 1 year ago | 1325 views | 38 applications

About the company

Kleros is a decentralized arbitration protocol that uses blockchain, game theory and crowdsourcing to solve a wide range of disputes. The Cooperative Kleros, the company that kickstarted the development of the Kleros protocol, is a widely recognized name in the blockchain and legaltech industries with a highly skilled engineering and research teams. As a fast growing company in a highly innovative industry, Kleros has a wide range of open positions in engineering, management and communications positions. To learn more about Kleros, check our website (, read our white paper ( or our book Dispute Revolution (

Job Summary

Are you passionate about decentralization and building the new governance systems that will make the old ones obsolete? If so, read on.

What Will You Do?

You will be part of Kleros’ software development team, working closely with the team on open source code. You will develop front ends that bring Kleros to life: write code, participate in code reviews, conduct tests and work with our designers to create clean interfaces.

At Kleros we develop many Decentralized Applications (DApps). You will work on core Kleros products like Court, as well as the many peripheral applications we build that interact with Kleros.

The blockchain is the source of truth for all of our applications so a lot of the heavy lifting is done in our front end interfaces. You will be working with large volumes of data and problem solving to make the asynchronous nature of the blockchain feel smooth and user friendly.

There are also opportunities to get involved with smart contract development and product development.

The Ethereum ecosystem is innovating quickly; so above all, you will be learning new things all the time.

Some of the responsibilities include:

Front-end development using Javascript, Typescript, React and EthersJS. Build fully functional DApps that interact with the Ethereum blockchain and Kleros Court. Take part in the design process and user testing. Taking responsibility for improving and maintaining existing projects. A previous blockchain experience is not necessarily required but candidates should be able to demonstrate a blockchain interest (read blog posts / scientific articles, tried dapps on mainnets or testnets).


Most of the compensation (2/3) is labelled in fiat and paid in crypto. The remaining (1/3) is labelled in PNK vested over 3 years with a 1 year cliff ensuring you get a stake in the project. We are a cooperative, so as a worker you own part of the company and get voting rights. Want to Apply?

You can apply on this website with an application note answering the following questions:

  1. Why do you think you are a good fit for this role?

  2. Why would you like to work on Kleros?

  3. What is the address of the KlerosLiquid smart contract on the mainnet that uses and the value of its maxDrawingTime variable? Let’s test your sleuthing skills!

Feel free to include anything else you think is relevant for us to look at.

Similar jobs

about 1 hour ago | 1 view | Be the first one to apply
$120,000 To $126,000 per year
about 24 hours ago | 35 views | Be the first one to apply
about 24 hours ago | 27 views | 4 applications
1 day ago | 26 views | Be the first one to apply
United Kingdom