Senior Backend Engineer: AI-Driven, Scalable .NET

TalentX; Denmark; Hybrid; DKK 900,000 - 1,200,000; Full time

Benefits offered by this job

Warrant programme

Pension

Health insurance

Paid vacation

Job summary

Relewise is seeking a sharp, hands-on engineer to evolve our core platform. You will lead feature design for search and recommendations, mentor teams, and ensure production-grade delivery with a strong eye for AI-driven improvements.

We value deep production experience in C#/.NET, sound architecture, and domain modelling. English fluency is essential; Danish is a plus. Aarhus location or hybrid work is supported, with a competitive salary and benefits.

Qualifications

• You have deep practical production experience with C# and .NET.
• You have experience with software architecture and domain modelling.
• You own and evolve a mature production backend with high throughput and low latency.
• You embrace AI throughout the development process and explain decisions clearly.
• You speak and write English fluently; Danish is a plus.

Responsibilities

• Design and deliver features across the core search and recommendation engine.
• Review code, including AI-generated work, and participate in production readiness.
• Improve performance, scalability and resilience using profiling and evidence.
• Own changes through deployment and maintenance; investigate incidents.
• Collaborate with Lead Engineer and CTO on design and the technical roadmap.

Skills

C# & .NET

Software architecture

Domain modelling

AI in development

English fluency

Danish is a plus

Azure

CI/CD

Windows Server/IIS

Search/recs knowledge

Tools

Azure

CI/CD

Windows Server/IIS

Job description

Relewise is seeking a sharp, hands-on engineer to evolve our core platform. You will lead feature design for search and recommendations, mentor teams, and ensure production-grade delivery with a strong eye for AI-driven improvements.

We value deep production experience in C#/.NET, sound architecture, and domain modelling. English fluency is essential; Danish is a plus. Aarhus location or hybrid work is supported, with a competitive salary and benefits.