Senior Windows Server Engineer

TL;DR

Senior Windows Server Engineer (Windows Infrastructure): Reinforcing high-availability Windows Server infrastructures in a critical production environment with strict security, performance, compliance, and SLA requirements. Focus on improving and automating environments, providing Level 3 support, advanced troubleshooting, root cause analysis, and coordinating cross-team technical initiatives.

Location: Luxembourg, on-site presence required 3 to 5 days per week (remote work possible but limited), flexible hours 07:00-19:00 with core 09:00-16:00

Company

Independent technology consulting firm with 7,600 people across 60+ countries, focusing on Information Systems & Digital, Telecom, Life Sciences, and Engineering.

What you will do

• Contribute to technical infrastructure projects and manage small cross-team initiatives
• Improve, stabilize, and automate Windows Server environments using PowerShell scripting
• Provide Level 3 support including incident handling, advanced troubleshooting, and root cause analysis
• Produce technical documentation and operational procedures
• Perform knowledge transfer and support Level 2 teams
• Ensure compliance with security, quality, and operational processes
• Coordinate technical activities across stakeholders

Requirements

• Minimum 8 years of professional experience in IT environments
• Experience in critical production contexts with high availability and strict SLAs
• Strong expertise in Windows Server 2016/2019/2022 (2025 a plus)
• Advanced PowerShell scripting and automation skills
• Hands-on knowledge of WSFC, Active Directory, ADFS, ADCS/PKI
• Strong understanding of Microsoft security hardening and cybersecurity best practices
• French and English required
• On-site presence required 3-5 days per week in Luxembourg

Nice to have

• Experience in regulated sectors

Culture & Benefits

• International community with 110+ nationalities
• Trust-based environment where 70% of key leaders started at entry level
• Robust training via internal Academy with 250+ modules
• Vibrant workplace with internal events like afterworks and team buildings
• Sustainability focus through WeCare Together program for social/environmental impact projects

Hiring process

• Brief virtual/phone call to discuss motivations and fit
• 3 interviews on average with line manager and team, covering experience, skills, role expectations, and company culture
• Possible case study: role play, technical assessment, or problem-solving scenario