You will contribute to impactful projects for high-profile clients, including European institutions such as the European Commission. 
 
Your tasks: 

• Design and implement IT Infrastructure solutions for  building automation systems. 

• Manage server infrastructure and application hosting (on-premises/cloud), including provisioning, hardening, backup, and recovery including certificate management and identity management. 

• Administer virtualization platforms including performance tuning and high availability.  

• Implement cybersecurity measures for OT/IT environments, including segmentation, access control, monitoring, and vulnerability management.  

• Plan and coordinate upgrades, patches, and firmware updates in line with ITIL change management practices.  

• Troubleshoot complex issues related to connectivity, authentication, virtualization, and systems across domains as part of incident and problem management 

• Document architectures, configurations, and changes, maintaining accurate asset and configuration records.  

• Support internal and external stakeholders and act as ICT liaison for building automation projects.  

• Provide training and guidance on ICT best practices and secure system operations.  

Your skills: 
Essential: 

• Hold a degree in IT/Engineering or equivalent experience with preferably 7+ years in IT/OT or building automation.  

• Demonstrate strong skills in servers (Windows/Linux) and networking (routing, switching, security), and system integration.  

• Speak Dutch and/or French with good English. 

• Hold or be willing to obtain security clearance (National, Institutions, NATO level). 

• Work with virtualization platforms (Proxmox, VMware, Hyper‑V, VirtualBox) and application hosting.  

• Apply OT/IT cybersecurity practices and manage PKI/X.509 certificates (TLS/SSL).  

• Administer identity & access (Active Directory, LDAP, Kerberos/NTLM) and understand ITIL processes.  

• Have knowledge of building automation protocols (BACnet, Modbus, KNX) and manage patching/upgrades.  

 
Preferred: 

• Hold certifications (CCNA, Security+, CISSP, ITIL, Microsoft).  

• Work with certificate services (AD CS, OpenSSL) and advanced virtualization/HA.  

• Know OT security frameworks (NIST, IEC 62443) and cloud (Azure/AWS).  

• Be familiar with building management systems / Siemens tech and project or ITSM environments. 

 
You’ll benefit from: 

At Siemens, you will join an environment that cares about you. You get the opportunity to develop yourself in an international environment. We offer varied work in a wide range of positions and intensive internal training to further develop your career. Permanent coaching and guidance by a mentor are also part of the process. 
 
Furthermore, we offer: 

• A challenging role at the intersection of IT and building automation with real operational impact. 

• A competitive salary with at least 31 days of annual leave. 

• Flexible working conditions: 2 to 3 days a week of home working. 

• Company car with European energy card (we have a green fleet). 

• Benefits@work: online store with additional benefits for Siemens employees. 

• Training program customized to your personal career needs. 

• A competitive base pay, in line with the general Belgian labor market. 

• A financial care program including a pension plan, death & invalidity coverage, 

• and an extended medical insurance: hospitalization, outpatient (ambulatory) care (i.e. dental & optical expenses), … 

• An employee assistance program, focused on mental and physical well-being. 

• And so much more! 

#TransformTheEveryday with us! Apply now! 

We value your unique identity and perspective and are fully committed to providing equitable opportunities and building a workplace that reflects the diversity of society. Come bring your authentic self and create a better tomorrow with us!