Craftzing is looking for a (freelance) senior .NET/C# software engineer to build and launch digital platforms.
About the jobCraftzing is looking for a senior (.NET/C#) software engineer to build and launch digital platforms. Someone who likes a complex challenge, talk to business about technical matters, can lead a development team and build custom solutions from scratch.
What you'll do:Architect and build scalable, high-performance .NET applications that stand up to real-world load.
Design and implement clean, modular and efficient software solutions.
Take ownership of the robustness and architecture of the application, designing for scalability, security and performance from the start.
Make and defend sound architecture decisions, and anticipate how systems need to scale.
Collaborate with cross-functional teams and clients in a hybrid work environment.
Provide technical leadership and mentorship, and set the technical direction for the team.
Work in an Agile/Scrum environment, ensuring timely and high-quality deliveries.
Minimum 10 years of proven experience in a similar role
Expert in C# and the .NET ecosystem
Hands-on experience with CQRS for separating command and query responsibilities
Expert in system integration: You seamlessly connect application components, APIs, and services to create a cohesive, high-performing solution
Experience building REST/GraphQL APIs and writing API middleware
Experience with Entity Framework, LINQ, and relational databases (SQL Server, PostgreSQL)
Experience with cloud platforms, ideally Microsoft Azure (App Service, Functions, Service Bus)
Experience with version control software
Experience in incorporating AI-tooling into your workflows
Familiarity with scrum and working in an agile environment
You are a team player with good communication skills
You are detail-oriented with a focus on code quality and best practices
You have a proactive problem-solving mindset
You have a passion for continuous learning and innovation
Fluent in English; Dutch is a plus
You are located in Belgium.
Bonus points:
Experience using TypeScript in back-end environments (Node.js with NestJS, Express or Fastify)
Experience with React
Experience developing products and platforms for the maritime sector
You can demonstrate your skills using a couple of real world projects
You have a genuine interest in your customer, their needs and challenges
You have a real passion for quality and technology and its potential to improve work and life
You have a true consulting mindset
Don't worry if you can't tick all the boxes above. It's about the right mentality and the desire to learn. If you think we're the right fit for you, get in touch.
Why you'll love usYou'll be part of a team of experts who share a passion for business transformation. Strategizing, designing and building spot-on sustainable digital environments that made us a trusted long-time partner of Telenet, Flemish Government, itsme®, BNP, Proximus, Philips TP Vision, Ahold Delhaize, Mediafin, Melexis, and many others. Together with us, you love to make a meaningful difference for our clients.
From day one you get the trust and space to do what you're good at, and we encourage you to step out of your comfort zone and take ownership.
Skills Required
- Minimum 10 years of proven experience
- Expert in C# and the .NET ecosystem
- Hands-on experience with CQRS
- System integration experience (APIs, services)
- Experience building REST and GraphQL APIs and API middleware
- Experience with Entity Framework and LINQ
- Experience with relational databases (SQL Server, PostgreSQL)
- Experience with cloud platforms (ideally Microsoft Azure)
- Familiarity with Azure App Service, Azure Functions, Azure Service Bus
- Experience with version control software (e.g., Git)
- Experience incorporating AI-tooling into workflows
- Experience working in Scrum / Agile environments
- Technical leadership and team mentorship experience
- Fluent in English
- Located in Belgium
- Dutch language skills
- Experience using TypeScript in back-end environments (Bonus)
- Experience with React (Bonus)
- Experience developing for the maritime sector (Bonus)
- Ability to demonstrate skills with real-world projects/portfolio (Bonus)
What We Do
Craftzing is a digital business consultancy that guides clients through digital transformation by aligning strategy, architecture, and execution. They provide services including digital strategy, service design, and the development of digital and AI products. The company operates as a 'boutique powerhouse' with a team of over 200 experts, focusing on creating sustainable value and impactful solutions for their partners through long-term, collaborative relationships.








