Senior Full-Stack Engineer (Node.js / React / TypeScript)
12 hours ago
Paris
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. Our tech stack: Typescript, React, NextJS, NodeJS, Express, PostgreSQL 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, • 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, • 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, • Communicate internally and externally about new features, be it collecting feedback pre-implementation or explaining them on launch Requirements Our tech stack: Typescript, React, NextJS, NodeJS, Express, 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. While mainly working with JavaScript technologies. Experience 5+ years in fullstack role., • 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 Bonus points if you: • 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 ___ (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, • Deep dive (1 hr) - Meet the hiring manager and explore your relevant experience and our upcoming projects, • Founder chat (30 mins) - Meet the founders to learn about Capi's growth plans, mission, and revenue targets. This is also your opportunity to ask any final questions to make sure our journey is right for you., • References, • Offer! Additional Information • This is a full-time position with competitive salary, share options, and benefits, • Ideal Start date: March 2026 (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.
