Senior Network and Systems Administrator

Energean is an independent E&P company focused on developing resources in the Mediterranean and UK North Sea. With presence in various countries Energean is operating production, development and exploration assets with an excellent HSE track record.

The company has an approximately 70% gas weighted portfolio with more than 1200 MMboe 2P reserves and 2C resources and our flagship development assets are the multi-tcf Karish, Karish North and Tanin gas fields, offshore Israel. 

Energean is committed to sustainable development and to be a net zero emitter by 2050 contributing to the global net zero target. The company also strives to meet United Nations' 17 Sustainable Development Goals through its day-to-day operations and a wide range of corporate social responsibility initiatives. 

Being an equal opportunity employer and valuing diversity Energean does not discriminate on the basis of race, religion, colour, national origin, sex, gender, gender expression, sexual orientation, age, marital status, or disability status.

Summary

Energean is seeking to employ a highly skilled Senior Network & Systems Administrator to join our Group IT team in Athens. This is a critical role responsible for ensuring the operational stability, security, and performance of our enterprise IT infrastructure across multiple company locations.

The role, reporting to the Group Head of Cybersecurity, will act as the senior technical escalation point, maintaining high availability across systems, networks, virtualization platforms, and core services while driving operational excellence and resilience. 

Key Accountabilities

• Ensure continuous availability of core infrastructure services (compute, storage, network, identity, connectivity)
• Act as the highest technical escalation point for complex infrastructure incidents
• Provide advanced troubleshooting across hybrid, virtualized, and cloud-integrated environments
• Manage and maintain identity services, DNS/DHCP, virtual environments, backup and recovery systems
• Support WAN/LAN connectivity and secure remote access solutions
• Execute patching, upgrades, and lifecycle management of infrastructure components
• Ensure infrastructure meets defined RPO/RTO and availability targets
• Support disaster recovery testing and failover readiness
• Implement and maintain infrastructure security controls and hardening standards
• Drive operational improvements, automation, and standardization initiatives
• Maintain accurate technical documentation and operational procedures
• Collaborate with service desk, cybersecurity, application teams, and external vendors
• Support audits, compliance reviews, and risk assessments
• Provide technical guidance to junior team members

Qualifications and Experience

• Bachelor’s degree in IT, Computer Science, Engineering, or related field (or equivalent experience)
• Minimum 5 years’ experience in enterprise infrastructure, systems engineering, or network administration
• Experience supporting multi-site or geographically distributed environments
• Strong hands-on expertise in:
  • Enterprise networking (LAN/WAN, VPN, routing, switching)
  • Microsoft ecosystem (Windows Server, Active Directory, Microsoft 365)
  • Virtualization platforms (VMware, Hyper-V)
  • Cloud-integrated environments (Azure preferred)
• Proven experience in high-availability production environments
• Strong troubleshooting and incident resolution capability
• Proficiency in English is essential. Willingness to travel globally.

Skills

• Analytical thinker with strong problem-solving skills
• Service-oriented with strong ownership and accountability
• Excellent communication skills in English (written & verbal)
• Able to perform under pressure during major incidents
• Collaborative, proactive, and adaptable

Rewards:

We offer an excellent benefits package including Medical, Pension, Life Insurance, continuous development, career development opportunities.

If you are a hands-on infrastructure expert who thrives in complex environments and enjoys solving challenging technical problems, we would love to hear from you.

Please apply online by hitting the 'Apply' button.

Applications will ONLY be accepted via the ‘Apply’ button.

This role is being handled by the Energean recruitment team and no agency contact is required.