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Open nowPosted 11 days ago

Senior Security Engineer (Cyber Defense)

Workable (global search)108,016 open roles

Where
Athens, Attica, Greece
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Your applicationOpen nowSenior Security Engineer (Cyber Defense)Workable (global search) · Athens, Attica, Greece

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The clock on this job

Early applications get read.

7.9% of postings close within 7 days. Measured by our own scanner across the market. Workable (global search) postings stay open a median of 7 days.

Share of postings closed within
  1. 1.6%1 day
  2. 3.6%3 days
  3. 7.9%7 days
  4. 14.9%14 days
  5. 34.0%30 days
This job: posted 11 days ago

Workable (global search) median: 7 days open

The posting

The Goal

OpenBet is looking for a highly motivated Senior Security Engineer to join its Cyber Defense team. Reporting to the Cyber Defense Senior Security Manager, this role is responsible for designing, implementing, administering, and improving security controls and security technologies across cloud and on-premises environments.

The successful candidate will combine strong security engineering expertise with hands-on experience in security operations, incident response, and security monitoring. This position participates in a on-call rotation to support critical security incidents and operational escalations.

What you’ll be doing

  • Own the administration, hardening, and optimization of security tooling (SIEM, EDR, WAF, DAST/SAST, and Vulnerability Management platforms).
  • Act as a security advisor for infrastructure, cloud, and application changes, promoting security-by-design principles.
  • Monitor, investigate, and lead the response to security incidents, performing deep-dive log and root-cause analysis.
  • Build and maintain SIEM detection use cases, correlation rules, and alerting dashboards.
  • Coordinate vulnerability assessments and penetration testing, validating remediation with Engineering teams.
  • Support GRC and audit readiness by validating technical security controls and collecting evidence.
  • Maintain Incident Response playbooks, runbooks, and participate in an on-call rotation for critical incidents.

The Player

  • BSc in Computer Science, Cybersecurity, or related field.
  • 6–7 years of experience in Cybersecurity, operating within fast-paced, high-availability environments.
  • Expertise in security architecture, Zero Trust principles, and cloud security across major platforms (AWS/Azure/GCP).
  • Hands-on experience implementing and customizing security tech (WAF, NDR, EDR) and infrastructure hardening.
  • Proficiency in incident management, root cause analysis, digital forensics, and penetration testing methodologies.
  • Familiarity with MITRE ATT&CK, SOAR, threat intelligence, and key frameworks (GLI-33, WLA, ISO 27001, SOC 2).
  • Strong project management and communication skills to influence global stakeholders.
  • Professional English fluency (written and spoken).

What’s the Score?

What we can offer YOU:

  • We have a collaborative hybrid office environment with our team members at least 3 days per week.
  • Attractive benefits, an open and supportive environment as well as a modern and exciting workplace
  • The opportunity to interact with global teams on a regular basis as you and our business continues to develop & grow
  • Tangible and genuine development - at OpenBet, you can take your career where you want it to go!
  • And if that’s not enough; enjoy flexible working whilst we provide you with the guidance and development skills you need to progress and enhance your career

At OpenBet, we celebrate diversity and believe in creating an inclusive environment where every voice is valued and respected. We're committed to building a team that reflects the rich tapestry of humanity, embracing individuals from all walks of life, backgrounds, and identities. Join us in shaping the future of iGaming, where diversity isn't just celebrated—it's celebrated.

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