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Software Developer - .NET (Mid–Senior) 🚀
📍 Culemborg, Utrecht, Netherlands
💻 Hybrid (Culemborg + Amsterdam office + flexible remote days)
💰 Competitive salary
🌍 EU work rights required - does not sponsor visa
🌟 Building software that supports large-scale, real-world engineering projects
About the company
This is a product-driven software company with 30+ years of experience building mission-critical platforms for complex engineering environments. Their AI-powered data platform brings structure and control to huge volumes of engineering documents, data, and workflows, creating a single, reliable source of truth across the full asset lifecycle.
They work with global players in energy, utilities, infrastructure, renewables, and other asset-heavy industries, helping teams stay compliant, reduce risk, and make better decisions on large, high-impact projects. The focus is on clarity, precision, and software that actually needs to work, no shortcuts.
Technology, engineering, and long-term thinking come together here, in a global yet down-to-earth environment where quality really matters.
You’ll be
- Designing, building, and maintaining backend services in .NET and C#
- Working on business logic, APIs, and integrations used at enterprise scale
- Collaborating closely with product owners, testers, and fellow engineers
- Reviewing code, shaping architecture decisions, and improving development practices
- Troubleshooting issues across development and production environments
- Working in an Agile setup (Scrum), with real ownership over what you build
You’ll bring
- Around 5+ years of experience with .NET (Core / Framework) and ASP.NET Core
- Strong OOP knowledge and a clean-code mindset
- Experience with REST APIs, EF Core, Docker, Git, and PostgreSQL
- Comfort working in Agile teams
- A proactive, collaborative attitude and curiosity to keep learning
Bonus points if you’ve worked with
- Dapper or NHibernate
- Kubernetes, Helm, Terraform
- CI/CD pipelines (GitHub Actions)
- OpenTelemetry or OpenAPI
- IIS or SAML
- Basic frontend knowledge (React, JavaScript, HTML, CSS)
Perks and benefits
- Hybrid working with multiple office locations
- International, technically driven team
- Freedom to shape your role and responsibilities
- Training and professional development opportunities
- A product actively used by global industry leaders
If you enjoy backend work with real-world impact and prefer a hands-on, pragmatic engineering culture, this one is worth a conversation.
Key Skills
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