Engineer, AI-Driven Payments Platform

Deel; Warszawa; Hybrid; PLN 140,000 - 240,000; Full time

Job summary

Klarna is seeking an engineer to own real production code from day one, tackling vaguely defined problems, and learning a large codebase quickly. You will document the parts that aren’t written down and argue for clear decisions rather than plans. You’ll use AI as a working method and collaborate through code reviews.

The role emphasizes hands-on coding, fast learning, and willingness to be the least experienced person in the room, with co-located teams and flexible office presence.

Qualifications

• You've built things beyond what a course, a job description or an assignment required.
• You can talk about why you chose to build something and explain a system you built.

Responsibilities

• Own real production code from day one and ship it.
• Ask for review, act on it, and give it back.
• Learn a large unfamiliar codebase faster than comfortable.
• Document the part nobody had written down.

Skills

Production code

Code review

Fast learner

Documentation

Job description

Klarna is seeking an engineer to own real production code from day one, tackling vaguely defined problems, and learning a large codebase quickly. You will document the parts that aren’t written down and argue for clear decisions rather than plans. You’ll use AI as a working method and collaborate through code reviews.

The role emphasizes hands-on coding, fast learning, and willingness to be the least experienced person in the room, with co-located teams and flexible office presence.