Senior .NET Backend Engineer - Azure, APIs & Scale

H & M Hennes & Mauritz Sverige AB; Stockholms kommun; On-site; SEK 700,000 - 1,000,000; Full time

Benefits offered by this job

Staff discount card

HIP incentive program

Pensions

30 days vacation

Benify discounts

Job summary

H&M Group, a global fashion leader, is seeking a Senior Software Engineer to join the Price Adjustments product team in Stockholm. You will design, build, and improve secure, scalable backend solutions that support pricing and adjustment capabilities across H&M, contributing across the full engineering lifecycle from design to release and maintenance.

You will own backend systems in .NET/C#, drive API design, ensure performance and security, and collaborate with cross-functional teams to deliver

Qualifications

• Strong experience with .NET Framework / C# in enterprise backend environments.
• Experience with Microsoft Azure, cloud architecture patterns, and Azure security best practices.
• Deep knowledge of Entity Framework, T-SQL, and SQL Server including schema design and performance tuning.
• Experience designing APIs, distributed systems, and scalable backend architectures.
• Good understanding of CI/CD pipelines, preferably with GitHub Actions.
• Experience with debugging, performance tuning, observability, and production incident management.
• Solid knowledge of secure coding and application security practices.
• Bonus: Azure certifications, Azure Data Factory, microservices, Docker/Kubernetes, messaging systems, or large-scale distributed systems.

Responsibilities

• Design and build scalable, secure, backend systems using .NET/C#.
• Drive API design and system-level decisions with focus on maintainability and performance.
• Lead technical initiatives from idea to production, ensuring quality and sustainability.
• Apply clean code, SOLID, testing strategies, and engineering best practices.
• Improve system performance across application, database, and infrastructure layers.
• Strengthen observability through logging, monitoring, tracing, and alerting.
• Support secure development practices, including Azure cloud security standards.
• Collaborate with DevOps, platform, product, and other teams to improve CI/CD and release processes.
• Mentor and support other engineers to strengthen engineering culture.

Skills

.NET Framework / C#

Microsoft Azure

Entity Framework

T-SQL

SQL Server

APIs

Distributed systems

CI/CD pipelines

GitHub Actions

Observability

Secure coding

Azure certifications

Docker

Kubernetes

Messaging systems

Tools

Docker

Kubernetes

Azure Data Factory

Job description

H&M Group, a global fashion leader, is seeking a Senior Software Engineer to join the Price Adjustments product team in Stockholm. You will design, build, and improve secure, scalable backend solutions that support pricing and adjustment capabilities across H&M, contributing across the full engineering lifecycle from design to release and maintenance.

You will own backend systems in .NET/C#, drive API design, ensure performance and security, and collaborate with cross-functional teams to deliver