Senior Product Engineer (Backend) - Investments Team

About the Role

We are seeking a Senior Product Engineer (Backend) remote to join our dynamic Investments team at Kota. In this role, you will be instrumental in building the infrastructure that powers workplace pensions and retirement savings. This is not just backend plumbing; you will design products that connect pension providers to employers and employees at scale, handling contributions, fund data, payroll integrations, compliance logic, and provider onboarding across multiple markets. The role is technically challenging, and your contributions will genuinely change outcomes for thousands of people.

What You'll Do

• Design and build the backend systems that power Kota’s pension and retirement savings products, including contribution flows, onboarding flows, provider integrations, and employer-facing configurations.
• Own technical architecture decisions for the Investments stream, ensuring robust and scalable solutions.
• Integrate with external pension and savings providers, building well-tested integrations that handle the complexities of real-world financial systems.
• Collaborate closely with the Product Lead, frontend engineers, and the broader integrations team to deliver seamless end-to-end features.
• Continuously improve the stability and observability of the systems you own, ensuring high reliability and performance.
• Contribute to code reviews, technical planning, and foster a culture of high standards without unnecessary bureaucracy.
• Help shape how the Investments team operates, providing technical leadership as the team grows.

Requirements

• 6+ years of experience building backend systems in production, particularly with .NET 8, PostgreSQL, and Azure.
• Proven experience designing and maintaining integrations with third-party APIs.
• Strong understanding of data modeling, event-driven patterns, and building for correctness and auditability.
• Cloud experience with Azure or AWS, comfortable owning infrastructure, not just code.
• Thoughtful about reliability, security, and compliance in financial services.
• Ability to design the product as a whole, not just backend APIs, taking initiative and making product decisions.
• Comfortable with ambiguity and ownership in a fast-growing startup environment.
• AI-forward mindset, actively curious about evolving how we use AI to build products and improve systems.

Nice to Have

• Experience with event-driven architecture.
• Familiarity with modern development practices and tools.
• Previous experience in a startup environment.

What We Offer

• Health Insurance via Kota.
• Workplace Pension with matched contributions up to 5% via Kota.
• WFH stipend to support your home office setup.
• Generous Paid Time Off — work hard and take the time you need.
• Access to office space in Dublin or a co-working space, wherever you’re based.
• Flexible working hours — we’re remote-first with some fixed hours for team alignment.