We are looking for an experienced and hands-on Senior Penetration Tester to support a high-impact international cybersecurity program. In this role, you’ll work closely with a specialized security team to perform advanced penetration testing activities on critical infrastructure and applications, helping strengthen the digital resilience of complex environments.
Your Responsibilities
- Conduct comprehensive web, infrastructure, and application-level penetration testing (COTS, GOTS, custom-built systems).
- Participate in kick-off and review meetings with technical and executive stakeholders.
- Produce clear and structured technical reports (executive summaries, technical findings, and remediation plans).
- Brief both technical and high-level audiences, including decision-makers, on the outcomes of your testing.
- Identify, exploit, and report vulnerabilities and architectural security weaknesses.
- Support responsible disclosure processes in case of zero-days or sensitive discoveries.
- Contribute to security design reviews and ensure compliance with internal policies and international standards.
- Collaborate proactively with internal and external security stakeholders.
- Continuously track emerging technologies and threats relevant to penetration testing.
- Follow agile methodologies in 1-week sprints, reporting on progress and deliverables.
Your Profile
- Bachelor’s degree in IT or equivalent field OR 10+ years of relevant hands-on experience.
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At least 3 years of experience in:
- Penetration testing (web apps, IT infrastructure, protocols)
- Network/system administration (UNIX, Windows)
- Vulnerability assessments, exploit development, malware behavior
- Strong scripting skills (e.g., Python, PowerShell, Bash).
- Deep technical knowledge in authentication protocols, application security, cryptography, and secure architecture.
- Ability to evaluate security risks and propose effective mitigations.
- Proven ability to communicate findings to both technical and non-technical stakeholders.
- Excellent written and spoken English (working language).
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Must hold a valid NATO SECRET security clearance. Unfortunately, candidates without this clearance cannot be considered due to the nature of the mission.
Certifications (a plus):
- OSCP, OSCE, OSWE, GPEN, GWAPT, CREST, GXPN, or equivalent
- Knowledge of risk analysis methodologies (e.g., EBIOS, OCTAVE, etc.)
- Experience in military, governmental, or international environments is a strong asset
Join a team where your expertise directly contributes to protecting vital operations and infrastructure.
Apply now and take the next step in your cybersecurity career with ABAKUS IT-SOLUTIONS.
We’re excited to hear from you!
Opportunities are numerous. From bare applications development to of IT infrastructures management including conception, architecture and requirements analysis.
Although open to technologies used by our customers, ABAKUS IT-SOLUTIONS seeks mainly but not only consultants mastering: Windows and Linux Servers, networks, developments (JAVA, SAP, .NET,…) as well as highly specialized experts for example in cybersecurity or in Content Management System (CMS) (SharePoint, Drupal, WebLogic…).
In terms of non-technical competencies, ABAKUS IT-SOLUTIONS hires dynamic persons, open to the world, interested by innovation and having a keen sense of client relationship.
A very good command of English is essential, the capacity to speak French, German or Dutch is an asset.
Even though most of our positions require at least 3 years of experience, some are open to new starters.
