Senior Linux Consultant

GFT · Kraków, Poland · On site · 4 days ago

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Posted October 10, 2026 · Read from GFT
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Type of contract: B2B contract

Salary range: 135 - 170 PLN/H

What will you do?

You will support and maintain Linux-based environments, ensuring their stability, security, and performance. Working closely with cross-functional teams, you will contribute to vulnerability remediation, infrastructure automation, and operational improvements. As part of an international technology environment, you will help deliver reliable infrastructure solutions, support middleware platforms, and maintain high operational standards across the organization.

Your tasks

Manage and maintain enterprise Linux environments

Identify, analyze and remediate security vulnerabilities

Implement and support infrastructure automation solutions

Develop and maintain Jenkins pipelines and automation workflows

Administer and troubleshoot Tomcat and JBoss Web Server environments

Perform system monitoring, performance tuning and root cause analysis

Support application deployments and release activities

Collaborate with development and infrastructure teams to resolve production issues

Ensure compliance with security and operational requirements

Create and maintain technical documentation

Requirements

Strong hands-on experience with Linux administration

Experience with system security, hardening and vulnerability remediation

Hands-on experience with Jenkins and automation tools

Experience with shell scripting

Experience with CI/CD pipelines and deployment processes

Knowledge of Tomcat or Red Hat JBoss Web Server (JWS)

Experience with system monitoring and troubleshooting

Understanding of networking and operating system fundamentals

Strong analytical and problem-solving skills

Good communication skills and experience working in international teams

Openness to work hybrid from our client's office (Kraków) 8 days a month

Nice to have

Knowledge of IBM WebSphere Liberty (WLP)

Knowledge of IBM MQ

Knowledge of IBM App Connect Enterprise (ACE)

Experience in the banking or financial services sector

Experience with containerization technologies

Experience with cloud platforms

Experience with Ansible or other configuration management tools

Employer
GFT
Location
Kraków, Poland · On site