Keystone Solutions

Full Stack .NET Developer Consultant

Keystone Solutions  •  Kingdom of Belgium (Onsite)  •  3 hours ago
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Job Description

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.

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 at Keystone Solutions Career Portal

Duration: 10/06/2026 - 31/12/2026 7 months • (full time)

Language requirements:

Dutch or French
Level Native or bilingual proficiency

Screening questions:

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Keystone Solutions

About Keystone Solutions

At Keystone Solutions, we specialize in bridging technology and talent to deliver a seamless IT experience.

With a focus on efficiency and innovation, we streamline your IT services, ensuring that you can focus on what you do best while we handle the complexities of your IT ecosystem. From strategic planning through to execution, we are your partners in creating a harmonious technological environment that propels your business forward.

Our Services:

- Hyperautomation: Embrace efficiency with Keystone Solutions' hyperautomation. Integrating Al, ML, and RPA, we automate and optimize your business processes, elevating operational excellence and decision-making.

- IT Consulting: Our IT consultancy at Keystone Solutions navigates you through the complexities of technology. We provide strategic insights, from system architecture to digital transformation, fueling your business growth.

- Software Development: Keystone Solutions excels in crafting custom software tailored to your needs. From innovative apps to system integrations, we transform your ideas into dynamic digital solutions.

- IT Security: Secure your digital landscape with Keystone Solutions. We offer comprehensive cybersecurity measures, from risk assessments to incident response, safeguarding your data and operations.

Industry
Unknown
Company Size
11-50 employees
Headquarters
Brussels, BE
Year Founded
2014
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