About InvestEngine

InvestEngine is a fast-growing fintech based in London, on a mission to make ETF investing simple and accessible. Over 150,000 clients have trusted us with more than £3 billion in assets — and we're just getting started.

About the Role

We're looking for a Lead Backend Engineer to join and lead our Payments Team.

This is a hands-on leadership role combining backend engineering, technical ownership, and team leadership. The Payments Team owns one of the most business-critical domains at InvestEngine, responsible for payment flows, external provider integrations, transaction reliability, and operational efficiency.

The team is entering an exciting stage where we are looking for a strong technical leader who can help simplify complex systems, improve reliability, drive architectural improvements, and scale both the platform and the team.

What You'll Do

• Design, develop, and maintain backend services in Python 3.11 using Django / DRF
• Lead technical initiatives across payments infrastructure and integrations
• Drive improvements in system reliability, observability, and operational excellence
• Work closely with Product, Operations, Compliance, and external partners
• Investigate production issues and identify root causes rather than temporary fixes
• Improve legacy systems and reduce technical debt
• Lead architectural discussions and technical decision-making
• Mentor engineers through code reviews, pairing, and technical guidance
• Take ownership of delivery, planning, and execution of complex projects
• Help grow and develop the engineering team

What We're Looking For

• 5+ years of backend development experience
• Strong Python and Django experience
• Experience leading projects or engineering teams