Senior Linux Engineer

Quick Facts

• Role: Senior Linux Engineer

• Focus: Data center migration for critical payment systems

• Collaboration: Application, Middleware, and Project Management teams

Description

You will support and migrate Linux-based environments for critical payment systems, including building, configuring, testing, and preparing production-ready setups. The role includes infrastructure troubleshooting across Linux, networking, and performance, plus automation of operational tasks. You will also maintain technical documentation.

Responsibilities

• Support Linux infrastructure as part of the data center migration program

• Build, configure, and maintain Linux server environments

• Support application migrations, test activities, and production environment preparation

• Diagnose infrastructure, performance, and network issues

• Collaborate with Application, Middleware, and Project Management teams

• Automate operational tasks using Ansible and Rundeck

• Create and update technical documentation in Confluence

Requirements

• Very strong Linux administration knowledge (preferably RHEL and Oracle Linux)

• Experience with JBoss/WildFly/Tomcat/Apache/OHS or Spring Boot

• Practical knowledge of Ansible and Rundeck

• Scripting in Bash and/or Python

• Strong networking knowledge including load balancing, TLS, PKI, and PGP

• Experience with monitoring, performance analysis, and Linux troubleshooting

• Experience with data center or application migration projects

• Knowledge of high availability, resilience, and business-critical systems

• Strong analytical and problem-solving skills

• Very good Polish and English proficiency

• RHCE certification is an additional advantage

Benefits

• Healthcare benefits fully paid by the employer (Medicover Maxima including dental, Medicover Sport)

• Life and accident/serious illness insurance

• Employee Assistance Program with free and anonymous specialist support (e.g., psychologist, therapist, lawyer)

• CGI share purchase plan (employer matches contributions)

• Up to 90% of creative work time can be reported for tax-deductible author’s cost (UOP)

• PPP (Profit Participation Plan) yearly bonus based on Business Unit results

• Referral Program (bonus for successful referrals)

• Be Consultant program for skill development, project rotation, and potential career path changes

• Mentoring program

• Training program including partner trainings and professional certifications via CGI Academia