About the role
Senior Azure .NET React Developer (Freelance – 2 days/week)
Location: Brussels, Belgium (Hybrid)
Industry: Railway Infrastructure (Public Sector)
Start Date: 15 October 2025
Duration: Until October 2026 (extendable, max. 24 months)
About The Role A leading organization in the railway infrastructure sector is seeking a Senior Azure .NET React Developer to support the development and design of multiple applications and APIs on Microsoft Azure.
You will work closely with integration and product teams, collaborate with experienced developers and analysts, and provide technical design expertise while coaching junior developers.
Key Responsibilities
- Design and develop middleware solutions and products
- Participate in technical architecture & solution design
- Mentor and coach junior developers
- Collaborate with cross-functional teams on innovative digital solutions
Must-Have Skills
- Backend: .NET Core 9 / C# 13+
- Azure Services: Service Bus, Application Insights, Key Vault, Cosmos DB, Functions, App Services
- Frontend: React
- Architecture & Patterns: DDD, Microservices, CQRS, Event-Sourcing, SOLID
- Other Tools: OAuth 2.0, Postman, MS Dynamics 365
Soft Skills
- Motivated, autonomous, and flexible
- Strong team-player and proactive communicator
- Analytical and solution-oriented mindset
Requirements- 10–14 years of relevant experience (Senior level)
- Bachelor’s degree in Computer Engineering (or equivalent) At least one recent Microsoft certification (< 2 years old)- Fluency in Dutch, French & English
About Sparagus
Sparagus is a premier consulting firm based in Brussels, France, Luxembourg & Morocco. Specializing in providing top-tier IT, engineering, and operations expertise. We offer tailored recruitment and consulting services to meet the unique needs of our clients. DUN & BRADSTREET
Our team comprises highly skilled professionals dedicated to delivering innovative solutions that drive business success. We pride ourselves on our deep understanding of the industries we serve and our commitment to excellence.
At Sparagus, we are committed to connecting businesses with the right talent and providing strategic consulting services that foster growth and innovation.
For more information about our services and career opportunities, please visit our website at www.sparagus.be.
About the role
Senior Azure .NET React Developer (Freelance – 2 days/week)
Location: Brussels, Belgium (Hybrid)
Industry: Railway Infrastructure (Public Sector)
Start Date: 15 October 2025
Duration: Until October 2026 (extendable, max. 24 months)
About The Role A leading organization in the railway infrastructure sector is seeking a Senior Azure .NET React Developer to support the development and design of multiple applications and APIs on Microsoft Azure.
You will work closely with integration and product teams, collaborate with experienced developers and analysts, and provide technical design expertise while coaching junior developers.
Key Responsibilities
- Design and develop middleware solutions and products
- Participate in technical architecture & solution design
- Mentor and coach junior developers
- Collaborate with cross-functional teams on innovative digital solutions
Must-Have Skills
- Backend: .NET Core 9 / C# 13+
- Azure Services: Service Bus, Application Insights, Key Vault, Cosmos DB, Functions, App Services
- Frontend: React
- Architecture & Patterns: DDD, Microservices, CQRS, Event-Sourcing, SOLID
- Other Tools: OAuth 2.0, Postman, MS Dynamics 365
Soft Skills
- Motivated, autonomous, and flexible
- Strong team-player and proactive communicator
- Analytical and solution-oriented mindset
Requirements- 10–14 years of relevant experience (Senior level)
- Bachelor’s degree in Computer Engineering (or equivalent) At least one recent Microsoft certification (< 2 years old)- Fluency in Dutch, French & English
About Sparagus
Sparagus is a premier consulting firm based in Brussels, France, Luxembourg & Morocco. Specializing in providing top-tier IT, engineering, and operations expertise. We offer tailored recruitment and consulting services to meet the unique needs of our clients. DUN & BRADSTREET
Our team comprises highly skilled professionals dedicated to delivering innovative solutions that drive business success. We pride ourselves on our deep understanding of the industries we serve and our commitment to excellence.
At Sparagus, we are committed to connecting businesses with the right talent and providing strategic consulting services that foster growth and innovation.
For more information about our services and career opportunities, please visit our website at www.sparagus.be.