Principal Full Stack Engineer - London

Описание вакансии

Capi is building the financial infrastructure for emerging markets trade.

Backed by $18M+ from top-tier investors like Creandum, Y Combinator, General Catalyst, and angels from Revolut, Checkout, Stripe, and Remitly, we’re building the financial infrastructure that emerging markets deserve.

Our mission is to grow GDP in emerging markets by making the global financial system fairer and more accessible. We’re tackling global trade, making it easier for importers to pay their international suppliers. Our platform enables businesses to expand rapidly, create jobs, and be engines of prosperity for their countries.

Our team is made up of approx 100 people across 10 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!

Take a look through Capi’s mission & values.

Role Overview

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

From your first day, you will have the opportunity to work closely with the founding team based across London & Paris 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 that balances impact, effort, and delight.

Key Responsibilities

Leadership Excellence

• Serves as a thought leader across the organization.
• Defines long-term technical direction and helps align teams to it.
• Mentors staff and senior engineers across domains.
• Drives cross-org education on new paradigms or major platform shifts.
• Acts as an SME for multiple technologies.

Delivery Excellence

• Leads highly complex, cross-team initiatives with many stakeholders.
• Defines and drives delivery frameworks for large programs.
• Brings clarity and alignment to ambiguous problem spaces.
• Ensures delivery scalability; creating processes for sustained velocity.
• Evangelizes outcome-oriented delivery culture across the organization.

Operational Excellence

• Designs company-wide observability and incident management frameworks.
• Establishes standards for monitoring, metrics, and fault management.
• Defines what “operational excellence” means across services/org.
• Leads large-scale reliability initiatives across multiple systems.
• Shapes org processes to embed operational resilience into engineering culture.

Technical Excellence

• Defines long-term architectural vision and standards for the organization.
• Drives company-wide technical strategy and technology choices.
• Oversees evolution of critical infrastructure and system design principles.
• Leads initiatives that shift the technical trajectory of the business.

Culture

• 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 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

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

What to expect when interviewing with Capi?

Our interview process includes:

1. 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
2. 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
3. Deep dive (1 hr) - Meet the hiring manager and explore your relevant experience and our upcoming projects
4. 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.
5. References
6. 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)

Take a look at what it is like to work at Capi Money across all of our international offices.

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.

We've won some cool awards recently too! Check them out:

• Startups UK Top 100 (No. 24)
• Viva Technology Top 100
• Welcome to the Jungle's Fintech's Finest Top 50