Senior Frontend Engineer (F/M/D) in London

Capi is building the financial infrastructure for emerging markets trade. Our mission is to grow GDP in emerging markets by making the global financial system fairer and more accessible. We have around 15 engineers, led by the Head of Engineering, split across 3 teams: Atlas, Blue Nile & Caprivi. We maintain a low-ego, first-principles culture - "strong opinions, weakly held" - while building the infrastructure that moves cross-border payments across multiple African jurisdictions, reliably and at real scale.

Responsibilities include:

• Contributing to the product process from end-to-end, from ideation to building the UI, backend logic, deployment, feedback, and measurement.
• Communicating internally and externally about new features, collecting feedback pre-implementation or explaining them on launch.
• Building intuitive and performant web interfaces for business owners in Africa.
• Implementing IT security and data protection best practices in a regulated environment.
• Championing code quality through robust testing, documentation, and reviews.
• Observing opportunities for improvements internally to help automate our non-tech processes and add to our tech best practices to improve our output and efficiency.
• Mentoring junior engineers and contributing to their professional growth through pairing, reviews, and feedback.
• Representing engineering in cross-functional discussions (including Finance, Operations, Senior Leadership) to help translate business goals into technical plans.

Technologies used include Typescript, React, NextJS, NodeJS, Express, and PostgreSQL. A product mindset is core to how we build - everyone at Capi is encouraged to think about the customer, the business, and the long-term impact of what we ship. A strong understanding of web development, frontend and backend best practices is essential, with a focus on JavaScript technologies.

Experience in a VC-backed or high-growth engineering team and building products used by customers is required. Bonus points if you:

• Speak and write in French & English.
• Have experience in Fintech, payments, wallets, or building ledgers.
• Possess expertise in security and data protection best practices needed in an FCA regulated business.

Some projects the team has been working on include:

• Automated payouts and AI invoice approval.
• Onboarding + payment automation with Swift network and banking partners across the world.
• Self-serve onboarding flow that collects company information and KYC documents from customers.

This is a full-time position with a competitive salary, share options, and benefits. We’re all about building a diverse, inclusive team at Capi. If there’s anything you need to make the interview process easier—whether it’s accessibility support, a different format, or just a heads-up about what to expect—just let us know, we’re happy to help.