Senior Unix Linux Administrator

Optiveum; Warszawa; Hybrid; PLN 91,000 - 152,000; Full time

Job summary

Optiveum seeks a Senior Unix/Linux Administrator to join our client in Warsaw on a hybrid basis. You will support a large server fleet, collaborate with the Server Engineering team, and drive reliable operations in a regulated industry.

You will master RedHat Linux, GCP, and automation with Ansible and Terraform, implement patching and hardening, and ensure governance and security across hybrid-cloud environments.

Qualifications

• Minimum 5 years of experience managing a sizable RedHat Enterprise Linux/Unix server fleet in enterprise environments.
• Experience with Google Cloud Platform technologies and RedHat Satellite.
• Automation experience with Ansible and Terraform.
• Familiarity with modern monitoring tools and ITSM tools (JIRA, Confluence, ServiceNow/Remedy).
• English proficiency at least B2 level.
• Nice to have knowledge of Solaris, AIX, IBMi, and experience in regulated financial environments.

Responsibilities

• Incident and resource optimization across server infrastructure to reduce major incidents.
• Automation design and maintenance using Ansible and Terraform to optimize GCP spend and compliance.
• Daily server management: diagnose and fix RedHat/Unix issues, ensure configuration integrity across hybrid clouds.
• Plan IT governance with patching, hardening, and monitoring to meet cybersecurity policies.

Skills

RHEL/Unix server administration

English (B2)

GCP cloud experience

Automation and DevOps

Monitoring and ITSM familiarity

Tools

Ansible

Terraform

Google Cloud Platform

RedHat Satellite

JIRA

Confluence

ServiceNow

Remedy

Job description

Senior Unix/Linux Administrator (Server Support Specialist)

Location: Warsaw (Hybrid: 2-3 days per week from the office)

Rate: Up to 110 PLN/h

Contracting Party: Optiveum

About the Role

Optiveum is currently looking for an experienced Senior Server Support Specialist to join our client in the banking industry. In this role, you will collaborate closely with the Server Engineering team and global support units to drive and improve server operations. Optiveum acts as the recruitment and contracting partner for this role, meaning you will sign your cooperation agreement directly with us.

Key Responsibilities

• Incident & Resource Optimization: Focus on reducing major incidents, optimizing resources, and improving IT operations across the server infrastructure.
• Automation & FinOps: Design, build, and maintain automation using Ansible and Terraform to optimize GCP cloud spend and safeguard compliance.
• Daily Server Management: Diagnose and troubleshoot RedHat/Unix issues, quickly restore services, and ensure configuration integrity across hybrid-cloud environments.
• IT Governance: Plan and control IT operations by ensuring compliance with cybersecurity policies, performing patching, hardening, and monitoring.

What We Are Looking For

• Core Experience: Minimum 5 years of experience managing at least a few hundred RedHat Enterprise Linux (RHEL) and Unix servers in enterprise environments.
• Cloud & Tools: Strong understanding of Google Cloud Platform (GCP) technologies and practical experience with RedHat Satellite.
• Automation Skills: Proven ability to build and implement infrastructure automation (Ansible, Terraform).
• Operational Excellence: Familiarity with modern monitoring tools, JIRA, Confluence, and ServiceNow/Remedy.
• Language: Proficiency in spoken and written English (at least B2 level).
• Nice to Have Knowledge of other Unix OS platforms (Solaris, AIX, IBMi), Veritas Cluster Administration, and VMware support.
• Previous experience working within a financial institution or a highly regulated environment.