Senior Cyber Security Engineer
Actionline Ltd. Β· Athens, Attica, Greece Β· On-site
Posted Jun 18, 2026
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π’ About Actionline
Actionline is a Greek company specializing in innovative Human Resources and Recruitment solutions since 2011. On behalf of our client, a leading company in the Energy sector, we are seeking an experienced Senior Cyber Security Engineer to join a dynamic and highly skilled team.
π Location: Athens π’ Industry: Energy πΌ Employment Type: Full-time π» Department: Cyber Security π Work Model: On-site / Hybrid (depending on project requirements)
π What We Offer
Join a leading organization that invests in technology, innovation, and people.
πΉ Competitive salary package πΉ Continuous training and professional development πΉ Exposure to cutting-edge Cyber Security technologies and solutions πΉ Opportunity to work with global vendors and industry leaders πΉ Modern and collaborative working environment πΉ Participation in large-scale Cyber Security projects
π Key Responsibilities
Optimize Security Architecture: Maintain, configure, and upgrade our security infrastructure and monitoring systems.
Lead Technical Deployments: Coordinate with external vendors and partners to successfully deploy and integrate new security software.
Support DevOps & IT Teams: Partner with devops team and system administrators to build security controls into databases, cloud, and applications.
Vulnerability & Threat Management: Assess security gaps, prioritize remediation efforts based on risk, and implement hardening measures.
Advance Threat Detection: Evolve our monitoring capabilities to accelerate threat detection and response times.
Guidance & Mentorship: Provide technical guidance and share cyber security best practices with junior team members.
Research Innovation: Keep pace with the evolving threat landscape and evaluate new defensive technologies.
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Qualifications & Experience
Proven Track Record: 8+ years of professional experience in IT security roles or dedicated security engineering.
Tool Proficiency: Solid background managing defense systems like SIEM, WAF, XDR/EDR, Email Security, and Data Activity Monitoring (DAM). Proven experience on managing security solutions on Azure.
Core Competencies: Deep understanding of data protection, identity management (IAM), and endpoint security strategies.
Vendor Operations: Experience managing relationships and deliverables with technology vendors.
Problem-Solving Skills: Strong analytical mindset with a track record of troubleshooting complex security incidents.
Academic Background: Degree in Cyber Security, Computer Science, or an equivalent field (Masterβs degree is a plus).
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Preferred Attributes
Industry Credentials: Professional certifications such as Security+, CC, AZ-500, SC-200, or BTL1.
Cloud & DevOps Knowledge: Understanding of cloud environments, DevSecOps principles, and securing CI/CD pipelines.
Enterprise Background: Experience utilizing enterprise-grade tools within global corporate structures.
π― Personal Skills
Strong troubleshooting andβ¦