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Administrator Sieci i Systemów (K/M)

Warszawa, mazowieckie💼 Full-time🗓 2026-09-26 → 2026-09-27

Core

Installation, configuration, and maintenance of server infrastructure, virtualization environments, cloud resources, and network systems.

Role type

Senior Network and Systems Administrator

Builds

On-premise and cloud-based IT infrastructure including servers, virtualization hosts, storage, and network devices.

Domain

IT Infrastructure, Cloud Computing, Network Engineering

Required skills

Windows Server administration, Linux administration, Virtualization (Hyper-V, VMware, Proxmox), Active Directory management, Network device configuration (routers, switches), Cloud platforms (Azure, AWS), Microsoft 365/Exchange administration, VoIP systems, Security tools (MFA, EDR, SSL/TLS), Backup and Disaster Recovery, PowerShell/Ansible automation, Incident management.

Preferred skills

DevOps practices (CI/CD, IaC), MDM platforms (Intune), ITIL/COBIT frameworks, Industry certifications (Microsoft, Cisco, Linux).

Responsibilities

Manage and maintain server and virtualization environments; Configure and monitor cloud resources (IaaS/PaaS); Administer Active Directory and user access policies; Maintain LAN/WAN infrastructure and network services; Support VoIP and telephony systems; Manage email and Microsoft 365 environments; Implement and maintain security solutions; Oversee workstation and mobile device management; Monitor service availability and performance; Execute backup and disaster recovery plans; Automate configurations and manage change processes; Provide L2 support and incident escalation.

Seniority

Mid-level to Senior, hands-on IC

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