Systemutvecklare Backend

Rasulson Consulting; Stockholms kommun; On-site; SEK 900,000 - 1,200,000; Full time

Job summary

Rasulson Consulting seeks an experienced Backend/Middleware Developer focused on C# and .NET. You will design and implement backend and middleware solutions, develop new features, and maintain existing systems while ensuring robust testing and reliable operation.

Collaborate with architects, testers and peers to deliver scalable services in a cloud-enabled environment, using Kubernetes, Docker, and RESTful design. Strong knowledge of relational databases and NUnit tests is expected.

Qualifications

• At least 7 years of total experience in backend development with C#
• At least 2 years of experience with .NET 6 or later
• At least 1 year of experience developing microservices in a cloud environment (Azure, GCP or AWS)
• At least 2 years of hands-on Kubernetes experience
• At least 1 year of experience with containerisation using Docker
• At least 2 years of experience with relational databases
• At least 2 years of experience developing REST services
• At least 1 year of experience configuring Helm charts

Responsibilities

• Develop and modernise backend and middleware solutions based on requirements and design
• Work on new development and maintain existing systems; perform testing and troubleshooting
• Collaborate with developers, architects, testers and team members to deliver sustainable technical solutions

Skills

C# development

Backend development

Microservices

REST APIs

Kubernetes

Docker

Relational databases

Unit testing (NUnit)

Tools

Kubernetes

Docker

Helm

Azure

GCP

AWS

PostgreSQL

Google BigQuery

GitHub Actions

Kafka

Job description

Backend/Middleware Developer (C# / .NET)

Role

On behalf of our client, we are looking for an experienced systems developer specialising in middleware and backend, with a strong focus on C# and .NET. The assignment involves developing, implementing and modernising backend and middleware solutions based on given requirements and technical design.

Responsibilities

You will work on new development and continued development of existing systems, technical maintenance, unit and integration testing, and troubleshooting and problem solving in complex system environments. You will collaborate closely with developers, architects, testers and other team members to ensure sustainable, well-functioning technical solutions.

Mandatory requirements

• At least 7 years of total experience in backend development with C#
• At least 2 years of experience with .NET 6 or later
• At least 1 year of experience developing microservices in a cloud environment, such as Azure, GCP or AWS
• At least 2 years of hands‑on experience with Kubernetes in assignments or projects
• At least 1 year of experience with containerisation using Docker or equivalent technology in assignments or projects
• At least 2 years of experience in development work with relational databases
• At least 2 years of experience developing REST services
• At least 1 year of experience configuring Helm charts in assignments or projects

Desirable requirements

• More than 7 years of total experience in backend development with C#
• More than 2 years of experience with Kubernetes in assignments or projects
• At least 2 years of experience developing microservices for Google Cloud
• At least 1 year of experience with Zero Trust architecture, including least privilege, strong identity for services and workloads, and secure secrets management
• At least 2 years of experience with .NET 8 or later
• At least 1 year of experience configuring umbrella Helm charts in assignments or projects
• At least 1 year of experience with Kafka
• At least 1 year of experience with Google BigQuery
• At least 1 year of experience with GitHub Workflows
• At least 2 years of experience with unit testing using NUnit or a comparable framework
• Experience with PostgreSQL in assignments or projects