Senior Full-Stack Engineer

Capi builds the infrastructure that enables businesses in emerging markets to pay their international suppliers, simply, quickly, and fairly.

Backed by $18M+ (Y Combinator, Creandum, General Catalyst + operators from Revolut, Stripe, Checkout), we are building a modern alternative to the traditional banking system.

Today, international payments are slow, opaque and expensive especially for companies operating across borders in Africa and other emerging markets.

Capi solves this with a product-first approach combining wallets, payment orchestration and automation.

Today, we are scaling fast:

• ~$1BN in annualised payment volume
• ~$10M in annualised revenue
• ~80 people across multiple countries

Some projects the team has been working on:

• Automated payouts and AI 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 mission: make global trade accessible and unlock growth for businesses operating in complex environments.

Key Responsibilities

You’ll join a small, high-performing team of engineers and product leaders shaping how we scale our platform and our impact.

Delivery

• Contribute to the product process from end-to-end, from ideation to building the UI, backend logic, deployment, feedback and measurement
• Communicate internally and externally about new features, be it collecting feedback pre-implementation or explaining them on launch
• Define and manage delivery milestones, ensuring alignment between engineering and product priorities

Technical

• Build intuitive and performant web interfaces for business owners in Africa
• Implement IT security and data protection best practices in a regulated environment
• Proactively drive architectural decisions e.g., improving scalability, observability, and modularity of the codebase
• Champion code quality through robust testing, documentation, and reviews

Operational

• 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. Including handling production incidents with confidence

Leadership

• Mentor junior engineers and contribute to their professional growth through pairing, reviews, and feedback
• Represent engineering in cross-functional discussions (including Finance, Operations, Senior Leadership) to help translate business goals into technical plans
• Set and uphold team standards for communication, collaboration, and technical excellence

Culture

• Communicate internally and externally about new features, be it collecting feedback pre-implementation or explaining them on launch

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.
• You are 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
• 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
• Based in London or Paris
• Speak and write in French & English
• Experience in Fintech, payments, wallets or building ledgers
• Expertise in security and data protection best practices needed in a FCA regulated business

What to expect when interviewing with Capi?

Our interview process includes:

• Screen interview with our Tech Recruiter Gracie (30 mins) - Learn about the Capi story and mission. Whilst ensuring we are aligned as an exciting opportunity for what you're looking for
• Technical challenge with one of our Principal Engineers (1 hr) - Demonstrate your abilities in a whiteboard-style interview with one of our senior team members. We like to keep this as natural as possible, as if you were joining us tomorrow. This interview is to assess your skills, interests, and potential to see the impact you could make. While also ensuring Capi can support your growth
• De