Jobily
senior network and systems administrator
About the job
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.
About the company
Energean is an independent E&P company focused on developing resources in the Mediterranean and UK North Sea. With presence in nine 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 1.2 bn boe 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.
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senior network and systems administrator
Energean
Αττική
Αττική
On Site
Πληροφορική
Permanent
Full Time
About the job
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.
On Site
Πληροφορική
Permanent
Full Time
About the company
Energean is an independent E&P company focused on developing resources in the Mediterranean and UK North Sea. With presence in nine 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 1.2 bn boe 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.