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Penetration tester (f/m)

As a fast-growing company, we are looking for a colleague who will help us ensure the delivery of our services, specifically conducting security testing of our client’s information systems (penetration tests, vulnerability assessments and management of vulnerabilities) as well as other consulting services in the penetration tester’s field of expertise.


  • Performing application penetration tests,
  • Performing network penetration tests,
  • Performing vulnerability assessments and vulnerability management,
  • Customer support during vulnerability remediation,
  • Development of systems (vulnerable virtual machines and applications) for educating users about security,
  • Stay up to date with the latest vulnerabilities, tools and techniques,
  • Professionalism and personal responsibility.

What we offer:

  • Competitive income and benefits,
  • Possibilities for professional development and advancement,
  • Work on large and challenging projects in fast-growing industries,
  • Mentoring by experienced colleagues, opportunities for learning and constant improvement, and paid professional education and training,
  • Fully flexible working hours,
  • Possibility of remote work or hybrid (office in Zagreb),
  • Additional health insurance.


  • You have a technical background in information technology such as networks, operating systems, databases, applications, virtualisation, cloud, anti-malware solutions, cryptography, attack detection systems, security information and event management systems, etc.
  • You like to play detective and you enjoy it,
  • You can untangle security holes in the voids of complex IT systems,
  • You own a brain with the potential to process large amounts of information and able to analyse information from different sources,
  • You are prone to creative and critical thinking, decisive in making decisions, you are no stranger to learning and quickly acquiring new skills and knowledge, as well as generating new ideas, solving problems, conceptual and visual thinking,
  • You have experience in penetration testing of applications and / or networks,
  • You have excellent communication skills,
  • You speak and write English and Croatian well (minimum B2 level),
  • You have a deep understanding of security principles and practices,
  • You are self-motivated and able to work in a dynamic environment.

The following qualifications are preferred but not required:

  • Possession of OSCP, OSWE, OSEP, OSED, Red Team Ops 1 or 2 and similar certificates,
  • Good knowledge of at least one programming language,
  • Experience in conducting secure source code reviews,
  • Experience with OSINT and conducting simulated phishing campaigns,
  • Experience working with industry-leading C2 frameworks.

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