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Senior Systems Engineer (Linux)

Athena Cloud Limited

Athens, Attica, Greece permanent

Posted: February 12, 2026

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Quick Summary

Design, implement, and maintain robust Linux-based systems for Athena Cloud Limited's cutting-edge solutions, optimizing system performance and ensuring high availability.

Job Description

Athena Cloud Limited is seeking a Senior Systems Engineer (Linux) to join our exceptional team. As a top-tier provider of Sovereign Cloud, Sovereign AI, and Sovereign Data solutions, we are committed to delivering secure and innovative services that empower our clients in their digital transformations. In this role, you will play a crucial part in the design, implementation, and maintenance of robust Linux-based systems that serve as the backbone of our cutting-edge solutions.

Your extensive knowledge and experience in Linux environments will be pivotal in optimizing system performance, addressing complex technical challenges, and contributing to the operational excellence of our infrastructure. You will work collaboratively with other engineering teams and stakeholders to ensure seamless integration, high availability, and exceptional reliability of our systems, all within a 24x7x365 service environment.

As a Senior Systems Engineer, you will also have the opportunity to mentor junior engineers and lead initiatives that drive continuous improvement in our Linux operations. If you have a passion for automation, a desire to innovate, and a commitment to excellence, this is a fantastic opportunity to make a significant impact on the way we deliver our services and protect our clients' data sovereignty.

Responsibilities

• Design, implement, and optimize Linux-based systems for high availability and performance.
• Troubleshoot complex system issues and provide timely resolution to incidents.
• Automate system deployments, configuration, and management using scripting and orchestration tools.
• Collaborate with cross-functional teams to integrate technologies and enhance system functionalities.
• Monitor system health and performance metrics to identify areas for improvement.
• Lead initiatives focused on best practices in Linux security, performance, and reliability.
• Provide mentorship and guidance to junior engineers in Linux systems administration.
• Stay updated with the latest trends and advancements in Linux technologies and open-source software.


Requirements:
• Bachelor's degree in Computer Science, Information Technology, or a related field; relevant certifications in Linux administration are a plus.
• 5+ years of experience in Systems Engineering with a strong focus on Linux environments.
• Extensive knowledge of Linux operating systems (e.g., CentOS, Ubuntu, RHEL) and kernel architecture.
• Demonstrated experience in system performance tuning, security hardening, and troubleshooting.
• Proficient in scripting languages such as Bash, Python, or Ruby for automation tasks.
• Experience with configuration management tools (e.g., Ansible, Puppet, Chef) and orchestration platforms (e.g., Kubernetes).
• Strong understanding of networking concepts, protocols, and security measures.
• Excellent communication and collaboration skills, with the ability to work effectively in a team-oriented environment.
• Passion for technology and continuous learning, with a proactive approach to problem-solving.


Benefits:
• Standard benefits package for Athens, Greece employees
• Private healthcare add-on
• Annual hardware allowance
• Working on the protection of data sovereignty and privacy to protect people

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