Senior Frontend Engineer

LI.FI is simplifying multi-chain DeFi for traditional financial institutions, fintechs and service providers by offering a unified API to access all on-chain liquidity across major blockchains for best price same-chain and cross-chain swaps. We are a passionate team on a mission to enable a fairer, more decentralised world. Apart from the tech, we care a lot about user experience and aim to make complex technologies accessible to everyone.

Setting yourself up for success

• Take a moment to read the job description before applying. We want to make sure this role is the right fit for you, so you don't spend time on an application that isn’t aligned with your experience. If this one doesn't quite match, we encourage you to submit your resume to our talent pool!

• Focus on your application, there's no need to reach out to team members directly. We review all applications thoroughly, so rest assured your submission will be carefully considered! If you have questions about which role might be the best fit for you, feel free to reach out to career@li.finance.

• To apply, please submit your resume detailing your relevant experiences and competencies. We love to see how your work has made a difference—whether it’s improving processes, increasing efficiency, or leading a project to success, so be sure to highlight this in your resume!

Jumper is crypto’s everything-exchange powered by LI.FI. By building on the sophisticated cross-chain infrastructure of LI.FI, we offer a comprehensive multi-chain experience for any and every person in crypto to move and use their funds across chains as easily and flexibly as they desire. Our vision? We want to make multi-chain DeFi easy and fun! While we live under LI.FI’s umbrella, we pride ourselves in our small but excellent and very agile team. Jumper already has over 150k active users, and still we are only now getting started to build it from the ground up - as an independent spin-off from LI.FI.

A quick run-down of the job

We are seeking a skilled and experienced Senior Frontend Engineer to join the Jumper team. The ideal candidate is a senior developer with a strong background in Web3 development. The role involves building innovative, high-quality frontend solutions, shaping user interactions and enhancing API usability.

Please note that you must be located in the EMEA region. Your application will not be considered if you're outside of this region.

Our current stack:

Our team prides itself on harnessing cutting-edge technologies and versions from React:

• TypeScript, JavaScript

• NextJS 14/15

• MUI

• Jest

• Figma

What you’ll do

• Develop and maintain Jumper webapp and other supporting libraries and UI components, focusing on user-friendly interfaces and functionality.

• Support and improve library APIs, ensuring they’re robust, elegant, documented, and easy to use.

• Contribute to open-source projects and maintain public repositories, enhancing visibility and impact within the developer community.

• Implement and maintain automated tests to ensure the reliability and scalability of frontend components.

• Work with Ethereum Improvement Proposals (EIPs), specifically those involving account abstraction and wallet connectivity, to stay ahead of evolving Web3 standards.

• Collaborate closely with cross-functional teams to align frontend solutions with backend architecture and overall project goals.

What makes a good candidate

• Must be proficient in TypeScript and NextJS.

• 6+ years of experience as a frontend engineer.

• Previous commercial experience in Web3 development (Viem, Wagmi, @solana/web3.js) is a must.

• Experience with MUI and Figma, demonstrating the ability to create responsive and visually appealing interfaces.

• Strong attention to detail when implementing designs and writing frontend code.

• Understanding of various Ethereum Improvement Proposals (EIPs) and other advancements in the Web3 development ecosystem are appreciated.

• Excellent communication and teamwork abilities.

• Open-source contributions and/or maintained repositories are strongly appreciated.

• A Bachelor’s degree or higher in Computer Science or a related field is a plus.

We encourage you to apply if you feel your experience and skills equip you for this job but are not listed here!

Company culture

• Embracing the differences

  • Embrace your own differences

  • Respect and welcome the unique qualities of others

  • See others’ differences as an opportunity to grow

• Own it, do it

  • Own tasks end-to-end

  • Hold yourself to a high bar for execution

  • Make bold decisions, and be accountable

  • Understand your limitations and seek for help

• Fail forward

  • Try - don’t be afraid to fail

  • Learn - don’t make the same mistake twice

  • Adapt - grow with the experience

• Have fun together

  • Take the time to get to know and understand each other better

  • Don’t take yourself too seriously and keep it light-hearted

  • Fun should be coming from a place of love and respect

What you’ll get

• Annual team offsites (Thailand was a blast at the beginning of 2023, Vietnam during 2024 was blast-ier; let’s see what happens in 2025!)

• 30 days of PTO

• Flexible remote days

• Flexible working hours

• Equity participation from day 1

• Entitlement to work computer (choice of equipment)

• 1 Conference per year near your city of residence

• An annual 1,000€ personal development budget once you have worked 6+ months (pro-rated the first year)

• A one-time 1,000€ remote budget to use on coworking, office setup, etc.

If you join us as an independent contractor, you’re only entitled to the first five benefits of this list.

Application process

Setting yourself up for success starts with the application! Click here to discover valuable tips that will help you navigate our application process effectively.

LI.FI is an equal opportunity employer. We encourage individuals of all backgrounds to apply. Join us in our dedication to fostering a workplace that values and respects each team member's unique contributions..

Shortlisted candidates will undergo a comprehensive interview process, including a people operations interview, a take-home assignment, a meet-the-team & founder interview, and a reference check.

For more information, visit our page detailing our hiring process!