Fintech .NET Backend Engineer – API & Microservices

Jefferson Frank

Stockholms kommun

On-site

SEK 520,000 - 680,000

Full time

14 days+

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Job summary

Jefferson Frank in Stockholm is seeking a .NET Backend Developer to join a fintech team building API-driven infrastructure for Nordic and European markets. This on-site role focuses on a production-grade .NET microservices platform deployed in Azure with Docker and Kubernetes, offering hands-on ownership and growth into architecture over time.

You will work in a cross-functional environment, contributing to maintenance and new features, collaborating across services, and helping scale the

Qualifications

2+ years' experience with modern .NET.
Experience working with APIs and microservices.
Experience in Azure environments.
Comfortable working with containerised applications (Docker/Kubernetes).
Curious, driven, and eager to learn in a startup-style environment.
Able to grasp complex fintech and payment flows.
Swedish speaking.

Responsibilities

Deeply understand an existing production-grade .NET microservices platform end-to-end.
Work across services deployed on Azure using Docker & Kubernetes.
Contribute to maintenance and new feature development in a cross-functional team.
Gradually take on more complex development challenges as platform knowledge grows.
Help evolve system architecture with potential architectural responsibilities.
Support scaling engineering as the company expands into new markets.