System Administrator - Level 3

At Sogeti, we believe the best is inside every one of us. Whether you are early in your career or at the top of your game, we’ll encourage you to fulfill your potential to be better. Through our shared passion for technology, our entrepreneurial culture, and our focus on continuous learning, we’ll provide everything you need to become the best you can be.

YOUR ROLE

You will be responsible for maintaining and optimizing our IT infrastructure, ensuring high availability, performance, and security of systems and services. You will handle complex incidents, contribute to infrastructure projects, and support the continuous improvement of our IT operations.

• Managing and maintaining Windows Server environments (2012R2 / 2016 / 2019)
• Administering Active Directory, GPOs, and user / workstation policies
• Supporting virtualization platforms (VMware ESXi, Hyper‑V)
• Troubleshooting L3 incidents related to systems, storage, and networking
• Managing backups, restores, and NAS / cloud storage solutions
• Monitoring system performance and security (ESET, Splunk, Nagios)
• Writing and maintaining PowerShell scripts for automation
• Collaborating with project teams for infrastructure deployments
• Maintaining IT documentation and asset inventory

YOUR PROFILE

• University Degree in Computer Sciences
• Minimum 5 years of experience in System Administration on Windows Environment
• Strong knowledge of Windows Server, Active Directory and PowerShell
• Good understanding of Networking
• Familiarity with Microsoft 365, Azure, Intune, Entra ID is a plus
• Knowledge of Linux, SQL, SCCM / SCOM, ServiceNow, and monitoring tools is an asset
• Fluency in English is required, good command in French is an asset
• Team player, proactive and solution‑oriented mindset

WHAT YOU’LL LOVE ABOUT WORKING HERE?

At Sogeti, we have a modern, human centric approach to promoting, assessing and ensuring future high performance. We support and guide you at every step of your career with continuous feedback and conversations. We’ll always make space to check in and discuss your growth and readiness for promotion.

We encourage flexibility when it comes to when and where people get their work done, allowing a better work‑life balance and greater empowerment. Employees work with their managers to determine an arrangement that works best for their role and personal circumstances.

We offer access to one of the best digital learning packages in the market to improve both your soft and hard skills. Encouraging you to be curious and accountable for your skills development. Our learning offers are world class and free to every employee across the globe. Access all learning assets and curated programs from business experts, plus content from leading partners including Harvard Business Review, Coursera, Pluralsight, Udemy, Microsoft, AWS, Google and many more.

Within the Framework of our certification PSF please note that the presentation of the criminal record will be requested upon hiring.

Sogeti Luxembourg is an equal opportunity employer. We promote equality and dignity in all aspects of recruitment and employment, and all offers of employment and promotions are made based on performance, competences and ability.