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.Net Developer

North HollandHybrid36 hours/week<3months

You will have full ownership of a specific software solution within a specialized domain. Due to the departure of the current developer, you will take full control: you will determine the direction, planning, quality, and further development. This is a unique role for someone who enjoys responsibility and finds peace in overview, structure, and ownership. You will work independently, without a Product Owner, and gather input from stakeholders yourself.

You will be the technical engine behind this product, ensuring it remains stable, secure, and future-proof.

What you will do.

  • Maintain, improve, and expand the software solution (VB.NET + C#).
  • Analyze existing code, resolve bugs, and perform refactoring.
  • Build new functionalities based on customer and chain needs.
  • Optimize product performance, stability, and security.
  • Maintain and develop integrations with specialized labs and external systems.
  • Work with web services, REST/SOAP APIs, and file exchanges.
  • Ensure the software stays up-to-date with technological and process developments.
  • Independently gather requirements from internal stakeholders.
  • Determine priorities, create planning, and manage your own backlog.
  • Advise on technical choices and future-proofing.
  • Write and manage technical documentation.
  • Perform tests, regression tests, and quality controls.
  • Prepare, test, and roll out releases.
  • Ensure knowledge transfer for continuity and transferability.
  • Contribute to thinking about future architecture (API-first, cloud-ready).
  • Identify bottlenecks and improvement opportunities in the codebase.
  • Propose innovations within the specialized domain.

Profile

  • Strong analytical and problem-solving skills.
  • Accurate and quality-oriented.
  • Communicatively skilled, both technically and non-technically.
  • Good at planning, organizing, and prioritizing.
  • Strong sense of responsibility and ownership.

Technical competencies. -. NET Framework, VB. NET, and C#.

  • SQL Server (queries, procedures, optimization).
  • API integrations (REST/SOAP).
  • Desktop development (WinForms/WPF or similar).
  • Debugging, refactoring, and software architecture knowledge.
  • Experience with Git.

Education & experience.

  • HBO Computer Science or comparable work and thinking level.
  • Minimum 4 years of experience as a.NET Developer.
  • Experience with independently managing software products.
  • Experience with legacy and modern.NET techniques.
  • Plus: experience in medical software or a specialized domain.

How to apply

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