Senior IT Infrastructure Engineer — Cloud & On-Prem

Omilia; Poland; On-site; PLN 120,000 - 180,000; Full time

Benefits offered by this job

Fixed compensation

Vacation days

Professional development

Apple gear

Job summary

Omilia is seeking an IT Infrastructure Administrator to design, deploy, and operate our core IT stack across on‑premises, cloud, and hybrid environments. You will ensure reliability, security, and scalability of network, server, and cloud systems that power Omilia's operations and platform delivery.

You will own the infrastructure lifecycle, manage backup and DR readiness, enforce security controls, and maintain documentation and runbooks, while collaborating with cross‑functional teams to

Qualifications

• 3–5 years of IT infrastructure administration or systems engineering experience.
• Hands‑on experience with network administration: firewalls, VPN, DNS/DHCP, VLANs.
• Solid experience with server administration on Linux and/or Windows Server.
• Experience with at least one major cloud platform (GCP, AWS, or Azure) at an administration level.
• Experience with virtualization technologies (VMware vSphere, Hyper‑V).
• Familiarity with backup and DR tools and methodologies; experience designing or testing recovery procedures.
• Knowledge of infrastructure security principles: hardening, patch management, access controls, certificate lifecycle.
• Experience with infrastructure monitoring and alerting tools.
• Methodical approach to documentation, change management, and incident response.
• Strong analytical and problem‑solving skills; able to diagnose complex infrastructure issues under pressure.

Responsibilities

• Administer and maintain network infrastructure: LAN/WAN, firewalls, VPN, DNS, DHCP, and switching/routing equipment.
• Manage server infrastructure (physical and virtual) including provisioning, patching, performance tuning, and decommissioning.
• Administer cloud infrastructure across GCP, AWS, or Azure: compute, storage, networking, and IAM configurations.
• Manage virtualisation platforms (VMware, Hyper‑V) and containerisation environments where applicable.
• Implement and maintain backup and disaster recovery solutions; conduct periodic DR tests and document outcomes.
• Monitor infrastructure health using observability tools (e.g. Zabbix, Datadog, Grafana); respond to and resolve infrastructure incidents.
• Enforce infrastructure security controls: patch management, vulnerability remediation, access hardening, and certificate management.
• Manage on-premises and cloud storage solutions, ensuring data integrity, retention compliance, and performance.
• Maintain infrastructure documentation: network diagrams, runbooks, configuration baselines, and change records.
• Support IT security audits and contribute infrastructure evidence to compliance programmes (ISO 27001, SOC 2, PCI-DSS).

Skills

Networking

Linux

Windows Server

Cloud platforms

Virtualization

Security & DR

Documentation

Firewall admin

Education

Bachelor's degree in IT/CS/Networking

Tools

Zabbix

Datadog

Grafana

Terraform

Ansible

Job description

Omilia is seeking an IT Infrastructure Administrator to design, deploy, and operate our core IT stack across on‑premises, cloud, and hybrid environments. You will ensure reliability, security, and scalability of network, server, and cloud systems that power Omilia's operations and platform delivery.

You will own the infrastructure lifecycle, manage backup and DR readiness, enforce security controls, and maintain documentation and runbooks, while collaborating with cross‑functional teams to