Senior IT Infrastructure Engineer

Quick Facts

Senior IT Infrastructure Engineer (hybrid work)

Description

Own the modernization, stability, and growth of Microsoft-based IT infrastructure supporting labs and offices. Configure environments independently, perform migrations, diagnose issues, and test implemented solutions end-to-end. Deliver outcomes with documentation and knowledge transfer so operations can continue smoothly.

Responsibilities

• Administer and develop Windows Server, virtualization platforms (VMware/Hyper-V/Proxmox), and storage (NAS/SAN), including capacity, performance, and lifecycle planning.
• Plan and execute modernization for unsupported or replaceable components.
• Lead infrastructure-side Windows Server migrations; support SQL Server modernization from an infrastructure perspective.
• Plan and perform production changes ensuring lab/test continuity and rollback options.
• Administer UPS (uninterruptible power supply) systems.
• Administer Active Directory, DNS, DHCP, and GPO; execute migrations from Samba AD to Microsoft Active Directory.
• Integrate on-prem environments with Microsoft 365 and Entra ID; standardize technical accounts, admin permissions, and identity/access model.
• Implement MFA, Conditional Access, SSO, RBAC, and PIM in coordination with IT Security; document identity directory services and system dependencies.
• Define and maintain workstation configuration standards; lead migration to Windows 11 and device standardization.
• Implement or improve Microsoft Intune for device configuration, app distribution, and update management; enforce compliance, encryption, and security settings.
• Monitor endpoint compliance and remediate non-conforming devices.
• Administer backup solutions, backup scope, and schedules; regularly test restores and document results.
• Prepare and maintain technical infrastructure recovery scenarios; validate RPO/RTO feasibility and fix detected gaps.
• Work with IT Security to ensure backup resilience against cyber incidents.
• Develop infrastructure monitoring (availability, performance, capacity, errors); configure alerts and escalation, perform failure root-cause analysis, and eliminate recurring issues with automation.
• Maintain an inventory of servers/services/dependencies and keep configuration and change documentation up to date.
• Create administrative instructions, recovery procedures, and runbooks for Service Desk; coordinate and validate vendor deliverables.
• Collaborate with IT teams and communicate progress, risks, and recommended next steps.

Requirements

• Hands-on experience independently administering and modernizing Microsoft infrastructure.
• Very good knowledge of Windows Server, Active Directory, GPO, DNS, and DHCP.
• Experience with at least one virtualization platform and storage solutions.
• Practical backup knowledge and documented system restore experience.
• Experience with Microsoft 365, Entra ID, and Microsoft Intune (or comparable MDM).
• Ability to diagnose issues using logs, configuration, and service dependencies.
• Experience performing independent changes and migrations in production.
• PowerShell knowledge enabling administrative automation.
• Ability to create documentation that supports maintenance and handover to another person.
• English proficiency for international team collaboration.
• Willingness for occasional travel and planned off-hours service work.

Benefits

• Employment contract and a hybrid working model.
• Real influence on the direction of infrastructure modernization.
• Technical autonomy and multi-location project involvement.
• Collaboration with local specialists and international group teams.
• Ability to implement solutions that directly support lab continuity.