Senior Full Stack .NET Engineer - ALM/IaC

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Senior Full Stack .NET Engineer - ALM/IaC - 4 months - Antwerpen, Belgium

Freelance Position | Onsite | August Start

Intro

RELYzIT Talent is seeking a Senior Full Stack .NET Engineer for a high-impact, onsite freelance assignment with our client in Antwerpen. This is your opportunity to shape the backbone of scalable, secure, and future-ready IT environments. Join a mission-driven team where your expertise will directly influence how technology empowers business outcomes.

Why This Role Matters

Our client is on a journey to modernize and future-proof their IT landscape. As a Senior Full Stack .NET Engineer, you will be pivotal in renewing and optimizing infrastructure, deployment, and release management processes. Your work will ensure stability, security, and scalability—enabling the business to innovate with confidence and agility. The stakes are high: your contributions will directly impact business continuity, user experience, and the ability to respond to evolving market needs.

What You’ll Be Doing

• Drive the renewal and optimization of hardware and software components, ensuring alignment with business and end-user needs.


• Coordinate with stakeholders on ALM (Application Lifecycle Management) processes and infrastructure decisions.


• Advise on Azure architecture and deployment strategies, co-developing scalable environments.


• Define and implement technical requirements for new hardware, software, and applications to deliver robust solutions.


• Contribute to .NET development, integrating solutions within existing systems and collaborating closely with development teams.


• Monitor, maintain, test, and secure IT infrastructure and applications to guarantee reliability, security, and usability.


• Set up and manage CI/CD pipelines, oversee release management, and ensure compliance and stability.


• Maintain data structures and system settings, ensuring performant data management and reliable backup strategies.


• Implement Infrastructure as Code (IaC) and manage Azure environments, supporting deployment and configuration activities.


• Troubleshoot and resolve application or network issues, especially within pipelines and deployments.


• Collaborate with external partners on incident management and proactively drive process improvements.


• Formulate proposals for renewal and optimization to meet current and future business needs.


• Continuously improve deployment flows, automation, and introduce best practices in ALM, CI/CD, and release management.


• Document pipelines, infrastructure, and processes, sharing knowledge with internal teams and partners to standardize working methods.

Technical Skills

• Proficient in .NET and React for full-stack development


• Solid experience with Microservices architecture


• Intermediate expertise in Azure and Azure DevOps


• Hands-on with CI/CD, Terraform, and Powershell


• Familiarity with Docker and Kubernetes (nice to have)


• Strong command of GIT for version control


• Understanding of Application & API security best practices


• Experience with Service Fabric


• Skilled in unit and integration testing

Language Proficiency

• Professional proficiency in English is required

Other Requirements

• Demonstrated experience working in Agile environments


• Ownership mindset with a passion for problem-solving and delivering impact


• Ability to collaborate effectively with cross-functional teams and external partners


• Strong documentation and knowledge-sharing skills


• Eligible to start in August 2026, following security clearance


• Availability for onsite work in Antwerpen (no remote option)


• Note: There is a collective closure from 14/07/2026 to 02/08/2026