Mission Overview
We are seeking a Full Stack .NET Developer for a consultancy mission at a client site, representing Keystone Solutions. The role involves developing, implementing, and maintaining software applications within a .NET environment to ensure a stable, high-performance, and secure IT environment that optimally supports business processes and user experience.
Key Responsibilities
Contribute to the renewal of hardware and/or software components and perform necessary functional or technical analyses to meet the needs of end-users and the company.
Manage and follow up on technical needs within a .NET and microservices architecture.
Advise on technology choices (.NET, React, tooling, frameworks).
Design solutions focusing on frontend (React) and backend integration.
Develop or determine technical requirements for, as well as implement, new hardware or software and applications to provide a quality set of equipment and applications.
Develop full stack applications (.NET + React).
Work according to Agile methodology using Azure DevOps.
Implement APIs and microservices.
Use Git for version control.
Monitor, maintain, test, and secure the IT infrastructure and/or software applications to ensure a high degree of reliability, security, and user-friendliness for end-users.
Perform unit and integration testing.
Apply application & API security best practices.
Ensure performance and stability.
Maintain data structures and/or system settings, providing a performant environment for data management and ensuring backups of user files to guarantee the correctness of business data and quick recovery in case of loss or damage.
Work with SQL Server for data management.
Monitor data quality and performance.
Support data integration within microservices.
Analyze, resolve, and follow up on application or network-related issues to restore the operation of these applications or networks.
Debug frontend and backend issues.
Provide second-line support.
Proactively avoid production issues.
Formulate proposals for renewal and optimization of the activity domain to meet current and future business needs.
Propose improvements in architecture and development practices.
Keep up with developments within the .NET and React ecosystem.
Ensure knowledge retention and keep data and documentation up-to-date for the own area of expertise while communicating information to maintain a correct and complete view of all available components and applications throughout their lifecycle.
Document code, APIs, and architecture.
Share knowledge within the team.
Work according to structured documentation standards.
Roles
Medior Full-Stack Developer – Most recent experience This year
Skills
.Net
Agile werkmethodiek
Application & API security
Application Insights
Azure DevOps
GIT
Microservices
React
Redux
SQL Server
Unit & integration testing
Zustand
Profile
Medior profile (approximately 2-3 years of experience). Bachelor's degree or equivalent through experience. Strong in maturity, drive, and team fit.
Why Join Keystone Solutions
As a consultant at Keystone Solutions, you will engage in dynamic projects that offer diverse challenges across various client environments. You will experience turbo-charged learning opportunities and have the chance to skyrocket your ambition and career growth. Being a 'K-Stone' means bringing our core values to every engagement, ensuring a fulfilling and impactful consultancy experience.
If you are ready to tackle technical and strategic challenges in a dynamic consultancy environment, apply today.
Duration
10/06/2026 - 31/12/2026 7 months (full time)
Language requirements
Dutch or French
Level Native or bilingual proficiency
Screening questions
Beschik(t) u / uw bedrijf reeds over een veiligheidsmachtiging?
Geef de afstand op in km tussen de woonplaats van de kandidaat en de site in Dessel (berekend via Google Maps)
#J-18808-Ljbffr