Systems and Security Engineer

Volton Hellenic Energy SA – powering Greece with Electricity, Natural Gas, and Telecommunications through Orizon.

We provide reliable solutions and build trusted relationships with our customers.
Through innovative services, we meet today's energy demands while preparing for the challenges of tomorrow.

As Greece's first multi-service provider, we seamlessly combine energy and telecoms, creating a unique ecosystem of value and convenience to our customers.

Recognized for a 2nd consecutive year as a Great Place to Work, we are proud of our people and our culture of excellence.

We are not just keeping up with the future – we are leading the way, setting the standard, and shaping what comes next. 

Join Us

As part of its development, Volton strengthens its human resources in Athens and seeks for a Systems and Security Engineer.

This is an engineering role in an up-and-coming network operator and Telecommunications Service Provider (mobile and fixed), covering technologies such as: Virtualization, Infrastructure planning and deployment, Systems Monitoring and Security, Automation, etc.

The Network and Infrastructure team works in close cooperation with the Mobile Services team and is responsible for all the IP & Transport Network, Infrastructure (physical and virtual) and supporting services of the MSP/ISP. This role is an opportunity for a passionate Systems Engineer that wants to be part of an exciting project, an MSP/ISP in the making.

Responsibilities

• Design and deploy an infrastructure (physical and virtual) that supports telecommunication services and applications
• Manage suppliers and subcontractors providing related products and services
• Specify and document engineering, operations and change management procedures for the systems and the security framework
• Define and monitor KPIs for systems performance
• Design and implement security policies for systems and applications of mobile services

Necessary Skills

• Excellent knowledge and experience in systems (physical, virtual, public cloud) management and in virtualization platforms / operating systems: Windows Server, Hyper-V, VMWare, Linux
• Deployment/Operational Experience with ISP-related services (RADIUS, LDAP, DNS, DHCP, NTP, TR069/TR369 etc.)
• Knowledge and understanding of systems networking requirements and basic networking principles (VLANs, Link Aggregation, routing protocols such as BGP, etc.)
• Knowledge and experience in managing virtual servers and other computing resources in public cloud environments (Azure & AWS) will be considered a bonus
• Knowledge and experience in the specification and implementation of security measures and operating procedures for the systems and their hosted applications

• University Degree or equivalent, in Engineering, Computer Science or similar
• At least 5 years of experience in managing computer systems, servers and virtualization platforms
• Experience in managing large-scale technology projects
• Competent with system monitoring tools (e.g. TICK stack)
• Expertise in resource management in public cloud environment (MS Azure or/and AWS)
• Experience in security technologies such as firewalls/IPS, VPNs, authentication systems etc.
• Bonus points for experience in scripting/programming (e.g. BASH, Python), automation frameworks (e.g. Ansible), DCIM/IPAM (e.g. Netbox), DevOps and CI/CD frameworks
• Fluency in English both oral and written
• Related technology certifications will be considered an asset

• A competitive fixed salary package aligned with your experience and expectations
• Hybrid working model
• Mobile phone, private insurance, corporate benefits and perks
• Continuous training and professional development
• Excellent professional environment
• Modern and productive working facilities

Don't miss the chance to join a Great Place to Work-Certified Company that fosters a positive work environment, proudly recognized as a Best Workplace for Women 2025.

All applications will be treated with confidentiality. If your CV meets the requirements of the job, we will contact you by phone to schedule an appointment. Information about the company on our site