About the job
About the Role
Aubay is seeking a Senior Windows System Engineer to join a skilled team in Luxembourg Ville. This position focuses on supporting and advancing critical Windows Server infrastructures for a major client. The work involves high-availability systems with strict security, performance, and compliance requirements.
Technical Environment
- Windows Server platforms (from 2016 up to 2025)
- Environments with demanding service level agreements and compliance standards
- Collaborative technical teams working across multiple disciplines
- Production systems where rigor, autonomy, and technical expertise are essential
Main Responsibilities
- Coordinate and participate in technical projects and smaller initiatives
- Drive improvements in system reliability and automation
- Resolve Level 3 support tickets and perform advanced troubleshooting
- Create and maintain documentation, and share knowledge with Level 2 support teams
- Work closely with specialists in Windows, VMware, security, and application domains
Why Join
This role offers the chance to work on systems that are essential to business operations. Senior engineers here directly influence the stability and future direction of key infrastructure.

