Security Architect - Senior IT Security Expert

Athens, Attica, Greece · Operations expand job description ↓


TwelveSec is an Information security firm, specializing in assurance, security management and security training services, based in Athens, Greece.

We are looking for a full time Security Architect based in the Athens-Greece, with a strong technical background and good knowledge of security management and governance principles. The position reports directly to the COO.

We offer a competitive compensation package (€35K - €50K per year), a friendly work environment, flexible working hours, and the option to telework from home.

Depending on your expertise, you will mostly be involved in:

  • Developing and reviewing application architecture and design
  • Analysis of current security threats, with particular emphasis on the technologies used (Java, Oracle, Weblogic)
  • Security risk and threat analysis and devising the adequate counter-measures
  • Business-to-security alignment analysis


Knowledge and skills

  • Applied Application Security architecture design according to established methodologies (CISSP-ISSAP or CSSLP (Certified Secure Software Lifecycle Professional) or SABSA aligned with TOGAF design)
  • Knowledge and security risk management and tools (e.g. ISO 2700, CRAMM, EBIOS)
  • Application security design
  • Java secure coding standard
  • Thorough knowledge of OWASP risk, threat and vulnerabilities methods
  • Security testing
  • Secure change procedures
  • Secure delivery procedures
  • Applied cryptography including FIPS, SHA-256 and AES-256
  • Disaster recovery
  • Security monitoring
  • Secure authentication systems
  • Provision of security audits of databases
  • Proven ability to write the security documentation of the above required scope of knowledge, in particular documentation required by ISO 27 00x standards


  • Minimum 6 years of professional IT experience with minimum 3 years of experience in Security IT applications
  • Analysis of business specific IT security threats
  • Design of state-of-the-art secure IT systems
  • Applying comprehensive and rigorous approaches for:
    • Ensuring current and future security structure in evolving IT systems
    • Describing an organization’s security processes
  • Security risk and threat analysis and devising the adequate countermeasures
  • Experience in process and requirement analysis
  • Experience with application certification within Common Criteria or PCI-DSS framework would be an additional asset;
  • Proven experience in documenting IT security systems.


Here are some of the benefits of joining the TwelveSec team:

  • Advance your career with our training programs and our internal Expertise dissemination activities
  • Work in a friendly environment, with low turnover rates and good team chemistry
  • Work from home and have flexible working hours
  • Improve your CV by getting security certifications with our support
  • Gain experience participating in innovative projects around the world
  • Join a growing company during its early stages with myriads of internal career advancement opportunities
  • Check us out at
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