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Junior Penetration Tester

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Deloitte

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Location:
Greece , Athens

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Contract Type:
Not provided

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Salary:

Not provided

Job Description:

We are currently seeking for enthusiastic team players with exceptional penetration testing skills and a well-rounded personality to become part of our dynamic Cyber - Offensive Security team. The team is part of a global network, where brilliant colleagues collaborate across Deloitte locations, to deliver services to our clients both in Greece and abroad. As a Junior Penetration Tester, you will work in a highly skilled team to perform various Penetration Testing and Red Teaming engagements for our domestic and international clients. Using your offensive skills, you will covertly breach our clients’ networks and provide recommendations to strengthen the client’s security posture. To sharpen your skills, you will be trained with the Offensive Security trainings; you will join the periodic Deloitte Global Ethical Hacking and Red Team knowledge exchange sessions, and perform research on the latest techniques and tools. Moreover, you will serve as a “Subject Matter Expert”, adding interpretive value to findings presented and be responsible for creating and executing custom penetration testing engagements to identify if client systems are vulnerable to security issues.

Job Responsibility:

  • Perform various Penetration Testing and Red Teaming engagements for domestic and international clients
  • Covertly breach clients’ networks and provide recommendations to strengthen security posture
  • Participate in technical planning and the delivery of best-in-class service to clients
  • Work on projects focused on identifying security vulnerabilities on client’s infrastructure, Web and Mobile Apps etc
  • Find creative ways to obtain a foothold in a client's network
  • Apply an adversary mindset to simulate sophisticated actors and achieve project-specific objectives
  • Perform research and develop your own tools and sharpen your tradecraft
  • Share your research within the Deloitte Global Hacking and Red Team community
  • Turning security weaknesses into tailored and concrete recommendations
  • Share knowledge and experiences to support the development of peers
  • Monitor your own results against objectives and seek feedback to identify ways to improve personal and team performance

Requirements:

  • Bachelor’s Degree in Information Technology, Information Systems Security, Cybersecurity or any related discipline
  • Familiar with penetration testing like Web Application, Mobile, Infrastructure and Vulnerability Assessments both on *nix and Windows environments
  • Expertise using Kali Linux and tools like Burp, Metasploit, Covenant, Cobalt Strike, and Nessus
  • Willingness to research new security testing techniques and tradecraft
  • Experience effectively prioritizing workload to meet deadlines and work objectives
  • Demonstrated ability to write clearly, succinctly, and in a manner that appeals to a wide audience
  • Consultant mindset, commitment to teamwork, and ability to build strong client relationships
  • Strong communication skills in Greek and English
  • Ability to maintain professionalism and always strive for high ethical standards
  • Military obligations fulfilled where applicable

Nice to have:

  • Burp Suite Certified Practitioner (BSCP) - PortSwigger
  • Hack the Box level: Pro Hacker and above
What we offer:
  • Receive training and attain certifications in the use of cutting-edge cybersecurity products and on various cybersecurity engineering topics
  • Be part of a truly global community of Deloitte experts in Ethical Hacking and Cyber Security
  • Join the periodic Deloitte Global Ethical Hacking and Red Team knowledge exchange sessions
  • Personal learning and development fast track
  • Many opportunities to get exposure and make an impact
  • Work with inspiring, ambitious, and supportive people with diverse geographical and academic backgrounds and extensive skills
  • Our development and career progression framework will help them develop the skills and capabilities to succeed
  • The wellness of our people and the ability to offer agile working arrangements is at the centre of our unique talent experience
  • We create a workplace that encourages collaboration, creativity, inclusiveness to ensure our staff are supported, encouraged, and feel a sense of purpose and meaning

Additional Information:

Job Posted:
January 05, 2026

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