Mid-Senior Full-Stack Engineer - FinTech Solutions

About the Role

We're hiring a Mid-Senior Full-Stack Engineer to join our dynamic team at nsave. As a Full-Stack Engineer, you'll play a vital role in crafting intuitive user interfaces and robust backend services, all while working remotely. This is an exciting opportunity to contribute to a mission-driven fintech company that aims to protect and grow the wealth of the financially excluded.

What You'll Do

• Design, implement, and maintain scalable, secure, and high-performance applications across the stack as a Full-Stack Engineer.
• Develop rich, accessible, and responsive front-end experiences using TypeScript and React Native.
• Own and develop backend services and APIs, ensuring seamless integration with banking and compliance systems.
• Collaborate closely with product, design, and operations teams to turn user needs into impactful technical solutions.
• Drive improvements in code quality, developer experience, and system reliability.
• Champion best practices in testing, observability, and deployment for full-stack systems.
• Iterate quickly while ensuring our systems meet the standards of a regulated fintech environment.

Requirements

• Proven experience as a Full-Stack Engineer with a strong understanding of both frontend and backend development.
• Proficiency in TypeScript, React Native, and NestJS (Node.js).
• Experience with relational databases (Postgres) and designing clean, efficient APIs.
• Familiarity with AWS (ECS, RDS/Postgres), Docker, and modern CI/CD pipelines.
• Understanding of secure coding practices and data privacy principles, ideally in fintech or regulated environments.
• Strong collaborative skills and a focus on creating seamless user experiences.
• Curiosity and empathy for solving real-world problems through technology.

Nice to Have

• Experience with event-driven architectures and messaging systems like Kafka.
• Previous work in a high-growth startup environment.

What We Offer

• Competitive salary in the range of £90,000 - £120,000 per year.
• 25 days of annual leave plus UK public holidays.
• Visa sponsorship available for international candidates.
• Private medical insurance and a free monthly gym membership.
• £500 Health & Wellness budget and individual learning & development budget.
• Season ticket loan scheme and cycle to work scheme.
• Opportunity to work in a mission-driven company focused on financial inclusion.