Senior Infrastructure Engineer (Linux, PHP, databases)

We are looking for an Senior Infrastructure Engineer to join Sopra Steria Polska on the French project. You will support operational services for the OSS environment of a major international telecom operator.

Please note that we can only offer a 5-month cooperation period to candidates who are based in Poland. The position operates within a three-shift schedule: 08:00–16:00, 09:00–17:00, and 10:00–18:00 with the project scheduled to start on November 1st, 2026.

Responsibilities:​

• System administration of Linux-based servers (Ubuntu, RHEL).
• Installation, maintenance, and updates of infrastructure-level software and services.
• Ensuring server–network communication (DNS, routing, firewalls, syslog).
• Automating processes using Ansible, Bash scripting, Python.
• Maintenance of virtualized environments (VMware).
• Handling incident resolution and supporting performance optimization.
• Participating in knowledge transfer, supervised practice, and gaining autonomy.
• Provide source code and support compilation, installation, and configuration within the new platform.
• Assist with production deployment and validate correct operation through functional testing in the new environment.

Tech stack on the project:​

• Operating systems: Linux (Ubuntu, RHEL)
• Networking: DNS, routing, firewall configuration, syslog servers
• Virtualization: VMware vSphere
• Automation: Ansible, Shell scripting
• CI/CD: GitLab CI/CD
• Languages: Bash, Python

Must have requirements:​

• At least 6 years of experience in general in IT positions.
• Hands-on experience in Linux systems administration with strong Linux administration skills.
• Experience in PHP development and scripting.
• Knowledge of MySQL/MariaDB databases.
• Hands-on experience in DevOps.
• Knowledge of Ansible and GitLab.
• Fluent English B2/C1.
• Availability to work on a 5-month project starting in November.
• Being open to visits in our office in Katowice or Gdańsk.
• Strong analytical and problem-solving skills.
• Ability to document processes and share knowledge effectively.
• Ability to collaborate effectively with distributed technical teams.

Nice to have requirements:

• French is a strong advantage depending on activities.
• Experience with network configuration: TACACS – RANCID.
• Experience with Perl.
• Experience with AI.
• Experience with Python.
• Experience with Webservices.

What we offer:

- BENEFITS (UoP): Luxmed, Medicover Sport, Worksmile, educational platforms, languages learning platform, referral bonus, copyrights, life insurance, certifications (paid by the company), conferences, Tech Lunches, possibility to join our Communities (Project Management, Architecture, Security, Process Management, Leadership, AI and Cloud), local kindergarten.
- DEVELOPMENT OPPORTUNITIES (B2B): Tech Lunches, Worksmile, possibility to join our Communities (Project Management, Architecture, Security, Process Management, Leadership, AI and Cloud).

ADDITION: free parking, fresh fruits, workation.
In case of questions, please contact the HR team.

The recruitment process for this position consists of two stages:
• a short phone call with a recruiter (30 min max)
• one-hour long interview on Teams (with both general and technical questions)

Salary range:
All information about salary range and its additional components will be provided during the 1st stage of recruitment process.

At our organization, we are committed to fighting against all forms of discrimination. We foster a work environment that is inclusive and respectful of all differences.