System Engineer

We’re looking for an experienced System Engineer (Domain Expert) to join a leading European energy infrastructure group driving the transition toward a sustainable and reliable power system. You’ll play a key role in supporting critical in-house applications and infrastructure that ensure operational excellence across national and cross-border energy networks.

Logistics

• Position: Freelance System Engineer (Domain Expert)
• Duration: 12-month contract (extendable)
• Day Rate: €(Negotiable & Competitive)
• Location: Brussels, Belgium (Hybrid - 60% remote / 40% onsite)
• Start Date: ASAP

Core Responsibilities

• Deploy, configure, and manage infrastructure for in-house applications in acceptance & production (mainly Windows IIS & SQL-based systems).
• Participate in architecture and design discussions for new application deployments.
• Interface with technical stakeholders to clarify requests and deliver scalable solutions.
• Provide advanced troubleshooting, root cause analysis, and performance tuning.
• Configure and maintain F5 load balancers and optimise system performance.
• Support and maintain core shared tools like RabbitMQ, Redis Cache, and MongoDB.
• Keep documentation and operational policies up to date.
• Join the on-call duty rotation (24/7, 1 week every 6 weeks).

Essential Skills & Experience

• Proven experience with Windows Server (2012–2022) deployment and support.
• Strong grasp of system architecture, IIS, and application integration.
• Proficiency in PowerShell (plus Bash/Python is a plus).
• Knowledge of MS SQL, MongoDB, RabbitMQ, or Redis Cache.
• Familiarity with Linux (Red Hat) and hybrid cloud environments.
• Solid understanding of networking and security fundamentals.
• Fluent in English + French or Dutch.
• Analytical, autonomous, and collaborative mindset.

Nice to Have

• Experience in critical or high-availability systems.
• Familiarity with containerisation or cloud automation.
• Background in energy, utilities, or infrastructure environments.

Why Join? Join a flagship European energy project shaping the continent’s sustainable future. Work in a diverse, collaborative environment that values innovation, well-being, and learning. An exceptional chance to contribute directly to Europe’s energy transition while expanding your expertise in complex IT infrastructure systems.