About ENTSO-EENTSO-E is the European Network of Transmission System Operators for Electricity. We coordinate the cross-border system operations, system development and electricity market activities of the 40 electricity transmission system operators (TSOs) which cover 36 countries. The ENTSO-E Secretariat in Brussels provides support on technical, market and policy developments for all European TSOs in their cooperation with each other, in their joint fulfilment of their legal mandates, and in the intensive interactions with EU decision-makers, regulatory agencies, associations representing network users and other stakeholders.If you are interested in having an active role in the energy transition, you should consider joining ENTSO-E. We are a dynamic European association working on important and exciting projects of the electricity sector with the commitment to support the efforts towards a carbon-neutral power system. At ENTSO-E, you will contribute to building the world’s largest integrated electricity market – impacting not only those in the energy sector but also Europe’s overall economy, today and in the future!Job descriptionWe are looking for a highly professional and skilled Senior Infrastructure Specialist, passionate about delivering stable, secure, and efficient IT infrastructure services. Do you have strong technical expertise in Microsoft-centric environments and virtualization, combined with excellent problem-solving and coordination skills? Are you ready to work in a dynamic international organisation supporting both day-to-day IT operations and strategic infrastructure projects? If yes, ENTSO-E is the right place for you.As a Senior Infrastructure Specialist at ENTSO-E, you will maintain, optimize, and support the company’s core IT systems, including servers, networks, cloud platforms, and endpoint devices, primarily within a Microsoft environment. You will contribute to the resilience and performance of IT services by ensuring infrastructure stability, security, and continuous improvement.In this role, you will work in the ENTSO-E Secretariat in Brussels in the Information and Communication Technologies section, reporting directly to the IT Manager.You will have the opportunity to work in a hybrid model, allowing for a blend of remote and in-office work to support a good work-life balance.Occasional travels may be required.Your responsibilities
Maintain, configure, and support physical and virtual servers and networks
Manage Microsoft environments including Windows Server, Active Directory, Azure AD, Intune, and Microsoft 365
Monitor and optimize VMware virtualization platforms (vSphere/ESXi)
Administer endpoint lifecycle and compliance through Intune
Implement IT security measures including identity management, patching, backup, and disaster recovery
Troubleshoot and resolve infrastructure-related incidents and requests
Lead or contribute significantly to infrastructure upgrades, migrations, and audits
Coordinate independently with teams and vendors to deliver solutions and resolve complex issues
Stay current with emerging technologies and industry best practices
Create and maintain clear system documentation and operational procedures
Support knowledge sharing and mentor junior IT colleagues
Participate in shaping infrastructure standards, policies, and long-term IT strategies
Your profileWe are looking for someone with the following skills and abilities:
Bachelor’s degree in Computer Science, Information Technology, Systems Engineering, or equivalent experience
5-8 years of relevant experience in IT infrastructure management
Strong knowledge of Microsoft technologies: Windows Server, Active Directory, Azure, Entra ID, Intune
Experience with VMware virtualization platforms (vSphere, ESXi)
Familiarity with scripting and automation tools (e.g., PowerShell)
Solid understanding of Group Policy, DNS, DHCP, patch management, and IT security best practices
Willingness to learn and continuously develop new skills.
Excellent writing and oral communication skills in English.
Motivation to work within a multinational and multicultural professional environment.
Positive mindset aligned with the values of ENTSO-E: Team, Trust, Integrity, Future-thinking, Excellence.
Additional assets (not mandatory):
Knowledge of network protocols and IP addressing
Experience with Lansweeper, Fortinet security appliances, Cisco Umbrella, Citrix ShareFile
Experience with Microsoft Authenticator, VEEAM Backup & Replication, Linux servers
Certifications such as Microsoft (MCSA, Azure Administrator), VMware, Fortinet NSE, Cisco, ITIL Foundation
Our offerOur people are truly at the heart of our association. You will be part of a multinational and multi-cultural environment, with colleagues from over 30 different nationalities. We believe in a diverse and inclusive workforce which allows us to create an environment where we learn from each other and develop together. We strongly believe in continuous learning and offer a broad range of training and development opportunities to our employees. We are a hybrid workplace and offer a maximum of flexibility enabling to have a good balance between remote working (from Belgium) and engaging physically with colleagues.We offer market competitive compensation and an extensive benefit package, with excellent insurance coverage for you and direct family members (such as hospitalization, supplemental medical plan). You will benefit from group insurance and travel insurance. You will have the opportunity to participate in a Flexible Benefits Plan to choose for those benefits that create the best value for you.Additionally, we offer employees from our TSO Members the chance to apply for secondment opportunities, further enriching your experience and expanding your horizons.Interested?Please submit your application no later than 31 August 2025, consisting of a curriculum vitae and a motivational letter on the ENTSO-E career site. Replies will be handled in strictest confidence.ENTSO-E is an equal opportunities employer.
