Senior Fullstack Engineer

Capi Money; Greater London; On-site; GBP 125,000 - 150,000; Full time

Job summary

A financial technology startup is seeking a product-oriented engineer to join their dynamic team in London. The role requires experience in web development, a strong understanding of both frontend and backend best practices, and excellent communication skills. You're expected to contribute innovatively to the product process, creating impactful solutions for businesses in Africa. The position offers competitive salary and benefits with opportunities to work on exciting projects that address real-world needs.

Benefits

Competitive salary

Share options

Benefits

Qualifications

• Experience in a VC-backed or high-growth engineering team.
• Strong understanding of frontend and backend best practices.
• Comfort in an early-stage startup environment with high pace.

Responsibilities

• Contribute to product process from ideation to deployment.
• Build intuitive web interfaces for business owners in Africa.
• Implement IT security and data protection best practices.

Skills

Product mindset

Web development

Excellent communication skills

Empathy and curiosity

Experience in high-growth teams

Tools

Typescript

React

NextJS

NodeJS

Express

PostgreSQL

Job description

About the Company

Capi helps businesses in emerging markets pay their international suppliers quickly and efficiently. We’ve raised over $18m across Seed and Series A (Q4 2024) and are on a fast growth trajectory globally.

Capi was founded by Mitch Riley, Scott Liddle, and Tom Watson. Mitch and Scott were COO/CFO/GC and CRO/CMO at Taptap Send, a remittance unicorn, and have spent two decades between them working in emerging markets, and Tom is a career entrepreneur and founder.

Working in emerging markets is opening the door for us to have an economical impact on African markets by allowing businesses to pay suppliers and partners through our platform - we are currently live across Senegal, Ivory Coast, Cameroon, Kenya, Benin, Togo, Congo Brazzaville, and Mali, with many more coming soon.

Our team is made up of approx 70 people across 8 countries; we are a group of a highly-ambitious, get-it-done people, who like to work hard on something that has a tangible impact in the world. And we’re looking for more people to join our team!

Role Overview

You’ll join a small, high-performing team of engineers and product leaders shaping how we scale our platform and our impact. You will have the opportunity to work closely as the founding team to shape the product vision and all parts of our technical architecture. As we scale our products and deepen our presence across emerging markets, this is a role that builds technology to solve customer problems. To do that you must have empathy and curiosity to get to the root cause of the issue and the creativity to build a solution which balances impact, effort and delight.

Key responsibilities

• Contribute to the product process from end-to-end, from ideation to building the UI, backend logic, deployment, feedback and measurement
• Build intuitive and performant web interfaces for business owners in Africa
• Implement IT security and data protection best practices in a regulated environment
• Observe opportunities for improvements internally to help automate our non-tech processes and add to our tech best practices to improve our output and efficiency
• Communicate internally and externally about new features, be it collecting feedback pre-implementation or explaining them on launch

Some projects we’ve worked on in the past

• AI module and automated processes for invoice approval
• Onboarding + payment automation with Swift network and banking partners across the world
• WhatsApp bot that creates quotes for customers based on their responses
• Self-serve onboarding flow that collects company information and KYC documents from customers
• Asynchronous workers that OCR invoices
• Internal tooling to manage and process millions of dollars of transactions

Our stack is

Typescript, React, NextJS, NodeJS, Express, PostgreSQL

Requirements

• 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.
• Experience in a VC-backed or high-growth engineering team and building products used by customers
• A strong understanding of web development, frontend and backend best practices
• Excellent written and verbal communication skills for expressing ideas, designs, and potential solutions with both technical and non-technical team members and customers
• You care about our mission and solving the problems faced by African businesses
• Comfortable working in an early-stage startup environment with high pace, rapid growth, involvement in the entire product development process and a high degree of ambiguity
• Based in London or Paris

Bonus if

• French speaking
• Experience in Fintech, payments and/or emerging markets
• Expertise in security and data protection best practices

Additional Information

• This is a full-time position with competitive salary, share options, and benefits
• Ideal Start date: December 2025 (we are aware that a notice period may need to be fulfilled and can adjust accordingly)

Capi is an equal opportunity employer and welcomes candidates from diverse backgrounds. We’re all about building a diverse, inclusive team at Capi. Whoever you are, we’d love to hear from you. 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.