Senior Front-End Engineer - Crypto/Web3 - (London or Paris) - Hybrid

We are looking for a Senior Front-End Engineer with experience in crypto and Web3 technologies to join our engineering team and build the next-generation Blockchain apps. This is an opportunity to develop one of the most popular and visited websites in the crypto ecosystem. In this role, you will be responsible for delivering user interfaces that power future wallets, block explorers, financial and market data products, as well as innovative visualizations.

Our engineering teams are involved in all aspects of the product life cycle, from idea generation, design, prototyping, planning, execution.

Candidate requirements

These are the minimum requirements a candidate must meet to be considered for this role.

• At least 5 years of experience working with Front-End technologies, with a focus on React and TypeScript
• Ability to architect secure, maintainable, and testable Front-End code
• Experience with blockchain technologies, cryptocurrencies, and Web3 development
• Proficient in client-side signing and handling crypto transactions (e.g., Bitcoin, Ethereum)
• Familiarity with Web3 libraries (such as web3.js, ethers.js) and wallet integrations
• Experience with decentralized applications (dApps) and understanding of blockchain protocols
• Ability to independently manage the full lifecycle of tasks, and take ownership of the quality of your work
• You have excellent communication skills and collaborate effectively with team members across disciplines
• Hands-on experience with automated testing is a plus
• Knowledge of Next.js is a plus
• Knowledge of browser extension development is a plus

Job responsibilities

• You will be a part of Web Front-End team which oversees all Web UIs for consumer side of the business such as Wallet, DEX and crypto on-ramp
• Maintain and continuously improve existing applications serving millions of users, as well as develop new ones for cutting-edge crypto solutions
• Integrate both Web2 and Web3 technologies and APIs to enhance wallet and decentralized exchange (DEX) functionalities
• Implement client-side signing and crypto transactions to ensure secure and seamless user experiences
• Collaborate closely with designers, Back-End engineers, and business stakeholders to deliver a best-in-class user experience
• Proactively collaborate with team members, sharing knowledge and ensuring efficient task distribution
• Advocate for best practices, code quality, and test coverage, while driving technical discussions within the team

Perks

• Unlimited
• Days of holiday

• Educational Budget

Hiring Process

• Screening
• Assessment
• Offer

About

is the world's leading software platform for digital assets. Offering the largest production blockchain platform in the world, we share the passion to code, create, and ultimately build an open, accessible and fair financial future, one piece of software at a time.

Head office

London, United Kingdom

Tagged as: Next.js , React , Typescript , Web3.js