At Siemens Smart Infrastructure (SI), we’re shaping the future of intelligent and adaptive infrastructure. As part of our commitment to secure and sustainable energy systems, we design high-performance control technologies and cyber-resilient architectures for critical infrastructure.

We are currently looking for an IT System Architect and Product & Solution Security Expert to strengthen our team at Grid Software in Beersel, supporting secure and resilient control systems for electrical power transmission for our clients. This role combines system design expertise with a strong focus on cybersecurity across the entire solution lifecycle.

Your tasks

• Design and implement Linux- and Windows-based IT systems for network control in critical energy infrastructure
• Define operating systems configurations (Red Hat, VMware, Windows Server) tailored to project needs
• Configure and document IS tools such as Veeam Backup, McAfee, and others
• Develop and maintain firewalls and switches (Cisco, Fortinet, etc.) and support network segmentation
• Manage system security including firewalls, group policy objects (GPO), patching and updates
• Evaluate and respond to reported security vulnerabilities, assessing their impact and proposing mitigations
• Conduct Factory Acceptance Testing (FAT) and Site Acceptance Testing (SAT) alongside customers
• Create and implement concepts for long-term maintenance and lifecycle patch management
• Advise customers on IT security best practices in critical infrastructure environments
• Collaborate with internal stakeholders during bid, engineering, and maintenance phases to uphold cybersecurity standards

Your skills

• Degree in Computer Science or a related technical field
• 5+ years of experience in IT system architecture and cybersecurity
• Proficiency in script-based programming (e.g. Bash) and virtualization platforms (e.g. ESXi)
• Sound knowledge of IT/OT network architectures in industrial environments
• Solid understanding of cybersecurity principles for critical infrastructure environments

• Fluent in French, English and Dutch.
• Experience with cloud computing and containerized systems
• Basic knowledge of project management methodologies
• Willingness to travel occasionally to our clients (e.g. France, Netherlands, Maghreb...)

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:

• At least 31 days of annual leave
• Flexible working conditions: 2 to 3 days a week of home working
• Benefits@work: online store with additional benefits for Siemens employees
• Customized training programs tailored to your career path
• A competitive salary aligned with the Belgian labor market
• A financial care program including pension, death & invalidity coverage
• Extended medical insurance (hospitalization, outpatient care, dental & optical)
• An employee assistance program focused on mental and physical well-being
• And so much more!

Create a better #TomorrowWithUs! 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!