Senior Erlang Engineer: Real‑Time Payments Backend

Klarna; Stockholms kommun; Hybrid; SEK 700,000 - 1,000,000; Full time

Job summary

Klarna is seeking a Backend Engineer to join the team building real-time payment services in a distributed Erlang/Elixir environment. You’ll own services from design to production, ensure high availability, and collaborate with cross-functional teams across engineering and product.

You’ll write clean, testable code, optimize performance in a real-time, cloud-based setup, and help shape architecture decisions. The role offers a hybrid office model in Stockholm and opportunities to grow in fintech.

Qualifications

• Proficient in Erlang or Elixir and distributed systems design.
• Experience with real‑time payment systems or fintech is a plus.
• Knowledge of building scalable, high‑availability services in production.

Responsibilities

• Design, build, and maintain backend systems behind payment services.
• Collaborate with cross‑functional teams to solve distributed systems challenges.
• Own services end-to-end from design to production, ensuring availability and performance.

Skills

Erlang

Elixir

Distributed systems

AWS

APIs

Microservices

Clean code

Tools

Docker

Kubernetes

AWS

Job description

Klarna is seeking a Backend Engineer to join the team building real-time payment services in a distributed Erlang/Elixir environment. You’ll own services from design to production, ensure high availability, and collaborate with cross-functional teams across engineering and product.

You’ll write clean, testable code, optimize performance in a real-time, cloud-based setup, and help shape architecture decisions. The role offers a hybrid office model in Stockholm and opportunities to grow in fintech.