Senior .NET Developer

October 16, 2026

Hybrid

Senior

Utrecht

Indeed

Keep in mind

Original vacancy is in Dutch
You will likely need Dutch for the job. The employer can confirm

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Part-time role

Description

A hybrid .NET developer role building and modernizing business-critical applications for the Dutch judiciary. You work with C#, APIs, microservices and container platforms such as Kubernetes and OpenShift in agile teams. Beyond writing code, you contribute to technical designs, automated testing, CI/CD and application performance. The organization leaves room for your expertise and ideas, with clear social benefits and growth opportunities.

Responsibilities

Develop complex applications and renew existing systems that are indispensable for the daily work of judges and other employees
Work with C# and modern technology including APIs, microservices and container platforms like Kubernetes and OpenShift
Think along about technical designs, investigate different solutions and look critically at software quality
Work in an agile team in short sprints on new functionality and improvements
Cover automated testing, CI/CD and application performance
Collaborate with other developers, software architects and testers in your team, and across teams
Grow your skills through training and the .NET professional group where developers from different teams meet

Requirements

At least 5 years of experience with C# .NET 6+
Experience with microservice architecture
Experience with container platforms (Kubernetes and/or OpenShift)
Experience with REST, Entity Framework, WPF and ASP.NET
T-shaped developer: besides software development, experience with Git, CI/CD pipelines, automated performance and unit tests, dashboarding and metrics

Conditions

One-year contract for 32 to 36 hours per week with outlook to a permanent position
Salary according to CAO Rijk, scale 11: maximum EUR 6,275.94 per month for a 36-hour week, based on experience
Choice budget of 16.5% of annual salary (up to EUR 1,008 per month) to compose your own benefits
Flexible working days with partial work from home, plus EUR 750 contribution to a comfortable home workplace
144 holiday hours and 64 choice budget hours on a 36-hour week, 26 days in total
Free public transport chip card for your commute
Pension built up at ABP, one of the largest pension funds in the Netherlands
Growth opportunities, trainings and courses via the internal academy
Informal atmosphere with team days, borrel afternoons and social activities like padel, yoga and pub quizzes

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