Administrateur Système Senior / SRE (Virtualisation) (H/F)

We are currently looking for a new colleague to join the IT Infrastructure and Operations division, where you'll be responsible for providing technical leadership, ensuring reliable and secure IT infrastructure and supporting the continuous modernization of critical technology platforms. If that speaks to you, we'd be happy to welcome you to our team!

Take YOUR part in #EnergySmart!

You will contribute to green and secure energy ecosystem creation by

• Ensuring high reliability, availability, and resilience of critical IT infrastructure and services by applying SRE and automation best practices
• Designing, implementing, and maintaining highly available infrastructure across on-premises and hybrid environments, with a strong focus on virtualization platforms such as VMware vSphere/ESXi and/or Microsoft Hyper-V
• Administering and optimizing Linux, Windows Server, and physical server infrastructure, including performance tuning, troubleshooting, hardware diagnostics, firmware management, and component replacement
• Managing enterprise storage and networking technologies, including SAN/NAS, iSCSI, and VLAN-based networking
• Implementing and maintaining monitoring, logging, and alerting solutions to improve service reliability and incident response
• Supporting and improving Disaster Recovery and Business Continuity processes to meet RTO/RPO objectives
• Applying infrastructure security best practices, including system hardening, patching, access control, and compliance support in line with ISO 27001, NIS2, or similar frameworks
• Collaborating with application, security, and operations teams, maintaining technical documentation, and contributing to incident reviews and continuous improvement initiatives

Required for this position

What we expect from you

• 3+ years of hands-on experience in IT infrastructure, system administration, platform engineering, or IT operations
• Proven experience administering enterprise virtualization platforms, especially VMware vSphere/ESXi and/or Microsoft Hyper-V, including clustering, high availability, and lifecycle management
• Strong knowledge of Linux and Windows Server administration, as well as physical server infrastructure, hardware diagnostics, and troubleshooting
• Experience with enterprise storage and networking technologies, including SAN/NAS, iSCSI, and VLAN-based networking
• Practical experience with monitoring, logging, and alerting solutions, as well as incident resolution and root cause analysis
• Understanding of Disaster Recovery, Business Continuity, infrastructure security practices, and regulatory or security frameworks such as ISO 27001, NIST, or NIS2
• Proficiency in scripting and automation using PowerShell, Bash, Python, Ansible, or similar tools, and experience working within structured change management processes such as ITIL

Would be benefit

• Experience with GitHub, KVM, OpenShift/Kubernetes, CI/CD pipelines, or production environments with high availability requirements (99.9%+ uptime), as well as a proactive mindset, ownership, and commitment to continuous learning and reliability culture

In return for creating a more sustainable future, we promise

• A package of additional benefits to choose from: pension accumulation, health insurance, or another benefit from the selectable benefits list in the MELP application
• Additional paid days for health improvement, short-term illness, volunteering, and accumulated work experience
• A hybrid work model (3+2) and flexible working hours
• Internal career opportunities
• Extensive learning and qualification enhancement programs
• Mentorship-based culture designed to facilitate meaningful and value-driven work
• Take part in an unfolding energy transformation process to create a 100% green and secure energy ecosystem for both current and future generations

Join a growing and increasingly international team of energy smart people united by a common purpose. We all play our part in creating a 100% green and secure energy ecosystem for current and future generations.

And the way to achieve this is certainly not to wait for the perfect moment. We believe that the power to act comes from the charge we bring to our work every day. United by purpose. Owning the challenge. Passion for reinvention. Pursuing excellence. These are our mindsets. Together, they yield the energy that drives everything we do. The energy generated by our choices. If you are guided by the same mindsets - we look forward to welcoming you to our team!

As we pursue our strategic goals to increase gender balance in Ignitis Group, we are indicating "f/m/d" next to job titles, meaning we welcome candidates of all genders - female, male or diverse.

Ignitis Group ensures equal opportunities. We welcome all applicants and do not discriminate against race, religion, gender, sexual orientation or gender identity, age, disability or other personal traits unrelated to work obligations.

Salary range for this position group

is 3190 to 4770 EUR (before taxes). The final offer depends on experience and competence. Variable part of remuneration may be paid depending on results.