Senior .NET Developer

Your Responsibilities

• Hands-on development within a .NET environment
• Analyze and improve existing architecture
• Reduce technical debt and lead refactoring initiatives
• Identify and resolve performance and security issues
• Advise on technical decisions and modernization initiatives
• Design future-proof solutions within an existing environment
• Challenge and guide technical stakeholders
• Collaborate closely with business stakeholders and development teams
• Contribute to migration and continuous improvement programs

Your Profile

You are a senior developer with a strong architectural background who enjoys remaining actively involved in development.

Must-Have

• Minimum 10 years of experience in Microsoft development environments
• Strong knowledge of C# and .NET
• Experience with ASP.NET MVC
• In-depth knowledge of .NET Framework environments
• Experience with modern .NET (.NET 6/7/8)
• Strong SQL Server expertise
• Experience with REST APIs and systems integration
• Experience working within complex legacy environments
• Proven track record in modernization and migration projects
• Strong analytical and problem-solving skills
• Excellent communication skills with both technical and business stakeholders
• Dutch: professional working proficiency (spoken and written)
• English: professional working proficiency (spoken and written)

Nice to Have

• Experience with Azure
• Knowledge of IIS hosting
• Experience with WCF
• Experience with workflow or integration platforms
• Knowledge of ETL processes or job scheduling solutions
• Experience with performance optimization
• Knowledge of secure software development practices

Who Are We Looking For?

You are someone who

• Quickly understands technical complexity
• Works independently
• Takes ownership and responsibility
• Is confident in constructively challenging technical decisions
• Has strong stakeholder management skills
• Remains pragmatic without compromising quality
• Enjoys bridging the gap between business and IT

Practical Information

• Hybrid working environment
• 3 days onsite presence required
• Full-time engagement
• Short-term start possible
• Long-term assignment with stable future prospects

Interested?

Are you an experienced .NET professional looking to make a real impact in a challenging and evolving environment? We would be pleased to discuss this opportunity with you in a confidential conversation.