Senior Engineer
About this role
Klarna, briefly
Klarna is a global digital bank and payments network. As of our Q1 2026 results: 119 million active consumers, over a million merchants, 26 markets, 3.4 million transactions a day. Listed on the New York Stock Exchange.
About the role
Being an engineer at Klarna means building and owning the systems that move money for millions of people — and that responsibility doesn't end when those systems ship. Your team and your focus can also change as the business changes, and the domain you join may look different in a year. Either way, this stays a hands-on role: you're still writing code, still making architecture calls, still in the codebase, and your influence comes from the quality of that work and the engineers you work most closely with.
We are searching for someone who brings expertise that changes what we are capable of. You've built something we haven't. You've gone deep somewhere we haven't been yet. The engineers here are strong; what they don't have is your specific experience, and that's exactly the gap we're hiring into.
Responsibilities
- Make sound, defensible technical decisions, and be able to say clearly what you decided against and why.
- Think past your own contribution: how it fits the wider architecture, where failures propagate, what breaks first under load, and who feels it downstream.
- Tie technical choices to business outcomes and size the solution to the problem's actual value - including when the right answer is something small.
- Design for the constraints that come with being a regulated bank - reliability, auditability, controls - and treat them as part of the engineering problem rather than an obstacle to it.
- Mentor engineers and raise the technical bar across teams. You act as a multiplier and elevate the people and teams around you, not just your own output.
- Set the standard for how your domain uses AI in everyday practice - not as a demo, as a working method.
- Who you are
- You bring a capability Klarna doesn't