Windows Server System Engineer (Freelance) - 8 Months - Aartselaar Belgium
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About the Role
Our client is seeking a Windows Server System Engineer to join their Digital Infrastructure team as part of a major digital transformation journey. This freelance opportunity is your chance to drive impactful change, ensuring robust, secure, and future-ready infrastructure as the organization prepares for NIS2 compliance. You'll be at the heart of critical upgrades and migrations, shaping the digital backbone that powers tomorrow's business.
Why This Role Matters
This role is pivotal in modernizing and securing the core infrastructure. You'll lead the charge in upgrading Windows Server environments and migrating applications, directly supporting compliance, business continuity, and operational excellence. Your expertise will help safeguard essential systems, ensuring resilience and reliability for years to come.
What You'll Be Doing
* Executing in-place upgrades of Windows Server operating systems and migrating applications to newer server versions
* Collaborating closely with infrastructure teams and stakeholders to coordinate seamless upgrades
* Implementing and supporting security features aligned with NIS2 requirements
* Managing servers and ensuring quality assurance across all technical implementations
* Documenting technical procedures, configurations, and migration processes
* Developing and refining backup procedures and disaster recovery plans
* Creating and executing post-migration test plans to ensure system integrity
What We're Looking For
* Minimum 3 years of experience as a Systems Engineer in complex environments
* Deep expertise in Windows Server (2012, 2016, 2019, 2022, 2025)
* Hands-on experience with OS upgrades, application migrations, and post-migration testing
* Solid knowledge of SQL Server and monitoring tools
* Project-oriented, systematic, and proactive approach to problem-solving
* Exceptional communication and documentation skills
* Proven ability to develop backup and disaster recovery strategies
Technical Skills
* Windows Server (expert level)
* Windows Services (expert level)
* MS SQL Server (intermediate level)
* Monitoring tools (advanced level)
* Digital project experience
* Java (intermediate level)
Language Proficiency
* Dutch: Native or bilingual proficiency
* English: Professional working proficiency
Other Requirements
* Freelance position with a fixed project duration: as soon as possible until 30/06/ months, full time)
* Hybrid work model: 3 days per week onsite in Aartselaar, flexible remote options for the remaining days
* Only candidates meeting all criteria (skills, experience, language, availability) will be considered
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