Senior Windows Systems Engineer

Head of Talent & Recruitment Operations at HCLTech | RAeS Toulouse | HEC Paris HCLTech is a global tech company with 224,000+ HCLTechies across 60 countries, offering digital, engineering, and cloud solutions. Serving major industries such as Financial Services, Manufacturing, Healthcare, and Telecom, its 12‑month revenue ending September 2024 was $13 billion.

HCLTech France: +500 HCLTechies. Offices: Paris, Lyon, Toulouse, Blagnac.

Senior Windows Systems Engineer We are seeking a

Senior Windows Systems Engineer

to join our HCLTech team at a prestigious client site in the banking sector, based in Paris.

This is a permanent, hybrid role offering the opportunity to work on‑site three days per week.

Overview of the role The role focuses on ensuring the reliability, security, and performance of Microsoft‑based server environments within a dynamic IT infrastructure. It involves both day‑to‑day operational management and participation in strategic projects, such as migrations and deployments.

Tasks and Responsibilities

Install, configure, and administrate Windows Server operating systems and associated services (Active Directory, DNS, DHCP, GPO, etc.).

Monitor and maintain the operational condition of physical and virtual servers (VMware, Hyper‑V, or equivalents).

Manage accounts and access rights via Active Directory and other directory services.

Implement and monitor security policies (patch management, antivirus, system hardening, backups).

Proactively monitor system performance and availability using monitoring tools.

Handle level 2/3 incidents and support requests in collaboration with local support and other technical teams.

Participate in infrastructure evolution projects, including migrations, new solution deployments, and automation (PowerShell scripts, deployment tools).

Document procedures, configurations, and interventions to ensure knowledge retention.

Collaborate with network, security, and application teams to ensure consistency and quality across the IT system.

Contribute to technology watch to anticipate changes in the Microsoft ecosystem and propose improvements.

Job Requirements +5 years of experience as a Senior Windows Systems Engineer/Administrator.

Mandatory Skills

Windows Server (recent versions, migrations), Active Directory (users, GPO, authentication, trusts)

Network services: DNS, DHCP, DFS, WSUS

Experience with VMware, Hyper‑V

Knowledge of Microsoft Azure (IaaS/PaaS)

Patch management, antivirus/EDR, system hardening strategies

Scripting & Automation: PowerShell, deployment tools (SCCM/Intune)

Monitoring & Operations: use of monitoring tools, analyze and resolve performance issues

Support & Incident Management: Level 2/3 ticket resolution, advanced diagnostics (logs, BSOD, perfmon, event viewer)

Documentation & Procedures: documenting configurations, operational procedures, and support guidelines

Cross‑Team Collaboration: working with network, security, and application teams within ITIL environments (incident and change management)

Technology Watch & Evolution: migration/modernization projects, Agile team methodologies

Ready for a new challenge? Join a friendly, multinational company offering endless opportunities in a dynamic, multicultural environment.

Why become an HCLTechie? At HCLTech, we offer diverse opportunities to learn, innovate, and fast‑track your career. You'll work with global clients and industry‑leading experts, gaining access to mentorship and rewarding growth paths. Our people‑friendly work culture fosters flexibility, leadership, and personal and professional growth, giving you the freedom to explore, experiment, and thrive.

We believe in doing things differently, offering hands‑on training and coaching, and celebrating the passion and commitment of our teams. Discover the benefits of joining HCLTech:

Global career opportunities and mobility.

Flexible work environment supporting work‑life balance.

Exciting projects and upskilling opportunities to shape your role.

Well‑being focus: collaboration with like‑minded colleagues to drive meaningful impact through initiatives such as CSR Council, Diversity Council, Women Connect, and many more.

Seniority level Associate

Employment type Full‑time

Job function Information Technology

Industries IT Services and IT Consulting

Location Boulogne‑Billancourt, Île‑de‑France, France

Contact & Application Apply now and submit your CV in English!

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