Senior Systems Engineer

ADAPTIT S.A. is a specialized ICT Group delivering high-quality services, innovative solutions, and premium support to organizations across telecom, finance, utilities, transport, retail, and enterprise sectors. Guided by our vision to be the trusted partner for seamless connectivity and cybersecurity, we stay at the forefront of technological advancements in Greece and beyond. Our mission is to create lasting impact through strong partnerships, deep expertise, and resilient, future-ready solutions. Since 2012, we have proudly showcased our work at MWC and remain active members of international business chambers.  

Our culture is grounded in trust, ownership, and collaboration, where open communication, shared purpose, and continuous growth define how we work. As a team, we stay agile and customer-focused, committed to delivering innovative solutions that create value for our people and clients alike.

As a Senior Systems Engineer, you will be responsible for designing, implementing, and managing complex ICT infrastructure across our projects. You will apply your strong IT, networking, and infrastructure expertise to deliver high-quality solutions while driving continuous improvement and collaboration in a fast-paced environment.

Key responsibilities:

• Leading the end-to-end design, configuration, administration, and maintenance of enterprise IT infrastructure, including sizing hardware requirements and deploying solutions from bare metal at customer premises.
• Designing, implementing and maintaining enterprise network infrastructure, Site2Site VPNs, VLANs, routing, enterprise firewalls and network segmentation.
• Troubleshooting complex connectivity issues.
• Monitoring network availability, security, and performance
• Designing, operating, and maintaining virtualization platforms (VMware, Hyper-V, Proxmox).
• Managing storage solutions (DELL Unity, Unisphere, OpenNAS, Openmedia vault)
• Designing  and maintaining backup and recovery solutions (e.g. Veeam, Acronis, Commvault)
• Producing and maintaining technical documentation, including infrastructure diagrams, network topology diagrams, configurations, procedures, and operational guides.

• Approx. 5-7 years of professional experience in Systems/Infrastructure Engineering, with increasing levels of responsibility.
• Strong knowledge of networking (LAN/WAN), security protocols, cloud technologies, virtualization, and IT infrastructure.
• Exceptional problem-solving skills and the ability to make informed decisions under pressure.
• Excellent communication skills, both oral and written, with the capacity to convey technical information to non-technical stakeholders.
• Fluency in English and Greek.
• Certifications such as CCNA, or relevant technical certifications are an advantage.

What Will Help You Stand Out:

• Relevant Bachelor’s degree in Computer Science, Engineering, IT, Telecommunications, or related field.
• Technical team supervision and IT service management experience.
• Knowledge of Docker/Kubernetes or similar containerization and orchestration technologies.
• Experience with Fortinet and infrastructure monitoring tools (e.g. Zabbix, PRTG).
• Experience designing and implementing IT operational processes.

• Private Medical and Life Insurance plan 
• Subsidized meal vouchers (card) 
• Business commuting expenses covered
• Hybrid work model that fits your lifestyle 
• Training programs and certifications 
• A new IT equipment 
• A buddy program to help you settle in and thrive 

ADAPTIT is committed to Equal Employment Opportunity without regard for race, color, national origin, ethnicity, gender, disability, sexual orientation, gender identity, or religion.