At a Glance
- Tasks: Join a dynamic team to shape and scale our innovative platform.
- Company: Capi, a fast-growing tech startup with a mission to solve real-world problems.
- Benefits: Competitive salary, share options, and flexible working arrangements.
- Other info: Diverse and inclusive culture, with excellent growth opportunities and mentorship.
- Why this job: Make a tangible impact while working with cutting-edge technologies in a collaborative environment.
- Qualifications: Experience in full stack development with a strong understanding of web best practices.
The predicted salary is between 60000 - 80000 £ per year.
Role Overview
You will 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
- Lead by technical example — your influence comes from the quality of your work, your judgment and your ability to bring others along with you, not from authority.
- Own technical direction within your team and workstream, collaborating closely with principal engineers and the Head of Engineering to align with broader architectural strategy.
- Mentor senior engineers through pairing, code reviews and design discussions — raising the technical floor of the people around you.
- Champion engineering best practices across the team, introducing standards and patterns that improve consistency, reliability and developer experience.
- Act as a subject matter expert in your core technical domain, and be the person others turn to when the problem is hard.
- Delivery Excellence
- Lead the end-to-end delivery of complex, multi-stakeholder projects — from scoping and design through to deployment, feedback and iteration.
- Translate ambiguous problem spaces into clear technical plans, breaking down large initiatives into well-defined milestones that the team can execute against.
- Manage delivery dependencies across teams and communicate progress clearly to both technical and non-technical stakeholders.
- Drive a culture of outcome-oriented delivery within your workstream — focused on impact shipped, not activity completed.
- Proactively identify and remove blockers before they slow the team down.
- Operational Excellence
- Take ownership of the reliability and observability of systems within your domain — ensuring they are monitored, well-understood and resilient to failure.
- Handle production incidents with confidence, leading postmortems that result in genuine process improvements rather than just documentation.
- Set the standard for what good operational practice looks like within your team — monitoring, alerting, runbooks and on-call hygiene.
- Contribute to company-wide reliability initiatives led by principal engineers and the Head of Engineering.
- Technical Excellence
- Make and defend strong architectural decisions within your workstream, balancing pragmatism with long-term technical health.
- Write production-quality code consistently — this is a fully IC role and hands-on technical contribution is expected at all times.
- Drive scalability, modularity and performance improvements in the areas of the codebase you own.
- Champion code quality through rigorous testing, thoughtful documentation and constructive code reviews that develop the engineers around you.
- Proactively identify technical debt and lead initiatives to address it before it compounds.
- 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?
- 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.
- 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 a competitive salary, share options, and benefits. We would be looking to hire for this role by June 2026, but are happy to align with notice periods as required. 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.
Staff Full Stack Engineer employer: Capi Money
Capi is an exceptional employer that fosters a dynamic and inclusive work culture, where every team member is encouraged to contribute to the product vision from day one. With a focus on employee growth, you will have the opportunity to mentor others while working alongside the founding team in vibrant cities like London and Paris, all while tackling meaningful challenges that impact African businesses. Our commitment to diversity and support for individual needs ensures that everyone can thrive in their roles.
StudySmarter Expert Advice🤫
We think this is how you could land Staff Full Stack Engineer
✨Tip Number 1
Get to know the company inside out! Research Capi's mission, values, and recent projects. This will not only help you tailor your conversations but also show that you're genuinely interested in being part of the team.
✨Tip Number 2
Practice makes perfect! Prepare for the technical challenge by brushing up on your coding skills and familiarising yourself with the tech stack. Think about how you can demonstrate your problem-solving abilities during the interview.
✨Tip Number 3
Don’t shy away from asking questions! During your interviews, engage with the founders and hiring managers by asking insightful questions about their growth plans and challenges. This shows your enthusiasm and helps you gauge if it’s the right fit for you.
✨Tip Number 4
Apply through our website! It’s the best way to ensure your application gets noticed. Plus, it gives you a chance to showcase your interest in Capi right from the start. Let’s get you on board!
We think you need these skills to ace Staff Full Stack Engineer
Some tips for your application 🫡
Show Your Passion:When writing your application, let your enthusiasm for the role and our mission shine through. We want to see that you care about solving customer problems and are excited about the impact you can make at StudySmarter.
Tailor Your Application:Make sure to customise your CV and cover letter to highlight your relevant experience with our tech stack and the responsibilities outlined in the job description. We love seeing how your skills align with what we’re looking for!
Be Clear and Concise:Keep your application straightforward and to the point. Use clear language to express your ideas and experiences, as this will help us understand your thought process and technical expertise better.
Apply Through Our Website:We encourage you to submit your application directly through our website. This way, you’ll ensure it reaches the right people and you’ll get a chance to explore more about our culture and values while you’re at it!
How to prepare for a job interview at Capi Money
✨Know Your Tech Stack
Make sure you’re well-versed in the technologies mentioned in the job description, like Typescript, React, and NodeJS. Brush up on your knowledge of best practices in web development, both frontend and backend, so you can confidently discuss how you would apply them in real-world scenarios.
✨Show Your Problem-Solving Skills
Prepare to demonstrate your ability to tackle complex problems during the technical challenge. Think about how you can break down ambiguous issues into clear, actionable plans. Practise explaining your thought process out loud, as this will help you communicate effectively with both technical and non-technical team members.
✨Emphasise Your Leadership Qualities
Since the role involves mentoring and leading by example, be ready to share examples of how you've influenced others through your work. Discuss any experiences where you’ve championed engineering best practices or improved team dynamics, as this will show your potential to elevate the team’s performance.
✨Ask Insightful Questions
During your interviews, especially with the founders, ask questions that reflect your understanding of the company’s mission and growth plans. Inquire about their approach to solving customer problems and how they envision the role contributing to that vision. This shows your genuine interest and helps you assess if the company aligns with your values.
