Level 3 Cyber Security Analyst

Cosmos Business Systems Α.Ε.Β.Ε.
Πλήρης απασχόληση Γεμάτη μέρα

CBS group is one of the largest Technology, Information Technology and Telecommunications groups, Key Systems Integrators of the Greek and Cypriot Market, with a powerful presence of 35 years and consists of Cosmos Business Systems SA, Cosmos Consulting, CBS LAN and CBS IT Systems (Cyprus) LTD. Our company's mission is to provide high quality integrated solutions in technology products and services to meet the needs of Private Business Sector and Public Sector Organizations, investing in people and knowledge, a combination that makes it competitive and efficient.

CBS LAN, member of CBS Group www.cbs.gr, wishes to hire:

Level 3 Cyber Security Analyst (Athens or Thessaloniki)

L3 Analyst will be responsible to ensure that the SOC team performs the processes as required and addresses complex and intricate security incidents and events. The L3 analyst will report technically to the Team Leader.

Candidate’s Profile:

  • 4+ years of experience in SOC

  • Extensive experience with security incident management tools (SIEM), advanced correlation rule creation, system hardening, and Vulnerability Assessment

  • Expertise in TCP/IP network traffic and event log analysis

  • Good Knowledge and experience with Cisco AMP, ESET EDR, QRadar, Soar, XDR

  • Experience in troubleshooting firewalls like Checkpoint, Cisco, Fortigate, PaloAlto will be an additional advantage



  • Manage Threat Hunting and escalation points related to it

  • Manage Forensics Tasks and escalation points related to them

  • Act as a security expert when required in SOC incidents

  • Assign tasks and processes to the entire analyst team

  • Design and create new use cases for potential new threats

  • Confirm the existence of actual security incidents

  • Conduct periodic reviews of use cases & correlation rules

  • Use tools such as sandboxes, honeypots, security analytics, security audit tools, etc.

  • Conduct Thread Hunting exercises on SIEM and EDR platforms

  • Analyze information and threats, search on the dark web and use other platforms to identify indicators for a specific client


  • Manage the escalation process of an offense within the team

  • Ensure the quality of investigations for each offense and provide proper guidance to other analysts

  • Report analysts' issues and malfunctions to the Team Leader

  • Ensure the analyst team's compliance with the SLA for offenses

  • Deeply analyze security incidents to identify the full kill chain

  • Guidance to L1 and L2 analysts

  • Monitor the overall performance of the SOC concerning SLA

  • Develop and improve incident monitoring procedures.

  • Conduct quarterly evaluations for L1 and L2 analysts and report to management.

To the Client

  • Collaborate with the Account Manager for client relations concerning specific offenses/incidents

  • Coordinate analysts with the client for incident response

  • Conduct periodic meetings for technical evaluation of weekly reports with the client

  • Conduct presentations and updates for the client

  • Evaluate vulnerability reports sent to the client and provide necessary recommendations

  • Client Onboarding

Desired Certifications:

  • Certified network Defender (CND)

  • Certified SOC Analyst (CSA)

  • Certified Incident Handler (ECIH)

  • Foundations of Operationalizing MITRE ATT&CK

  • MITRE ATT&CK Defender

  • CompTIA Cybersecurity Analyst (CySA+)

We are committed to an inclusive culture that encourages and supports the diverse voices of our employees.  We welcome applications from individuals of all genders, ages, sexual orientations, nationalities, ethnicities, religions, beliefs, and ability status and all other diversity characteristics.

All submissions will be treated as confidential.

Dear Applicants,

After you submit your application, it will be evaluated by Cosmos Business Systems' Human Resources Department and, if your academic and professional profile meets the requirements of the position in question, we will contact you to schedule a personal interview.

Cosmos Business Systems, will process your Personal Data in its capacity as Data Controller, according to the information you will find available in the following link:

Privacy Notice for processing personal Data

For any clarification or objection related to the processing of your Personal Data by Cosmos Business Systems, you may contact the Data Controller to the following email address: [email protected]


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