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 configuration
Own technical architecture decisions for the Investments stream
Integrate with external pension and savings providers, building robust, well-tested integrations that handle the messiness of real-world financial systems
Collaborate closely with the Product Lead, frontend engineers, and the broader integrations team to deliver features that work seamlessly end-to-end
Continuously improve the stability and observability of the systems you own
Contribute to code reviews, technical planning, and a culture of high standards without bureaucracy
Help shape how the Investments team works. This is a senior role and we'll look to you for technical leadership as the team grows

6+ years building backend systems in production. We use .NET 8, PostgreSQL and Azure
Experience designing and maintaining integrations with third-party APIs
Strong understanding of data modelling, event-driven patterns, and building for correctness and auditability
Cloud experience with Azure or AWS. You're comfortable owning infrastructure, not just code
You think carefully about reliability, security, and compliance
You thrive at designing the product as a whole, not just the backend APIs. We need someone that will take the initiative and make product decisions
Comfortable with ambiguity and ownership in a fast-growing startup
AI-forward mindset
We are constantly evolving how we how we use AI to build products and improve our systems and engineering practices. You should lean into that, be actively curious about it and want to help push it further

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

Senior Product Engineer – Backend

Key skills