Senior Security Specialist - Penetration Tester

Our requirements

• Degree in Computer Science (or equivalent practical qualification) with at least 3 years of hands-on experience in web application and infrastructure penetration testing.
• Proven track record in red teaming, source code review, and in-depth knowledge of the OWASP Testing Guide (e.g., XSS, CSRF, session management).
• Proficiency with standard industry tools (Burp Suite, Metasploit, Nessus, Wireshark, Bettercap) and scripting capabilities (Python, Bash, Ruby).
• Strong critical thinking and problem-solving skills, with the ability to analyze complex datasets and extract actionable security findings.
• Professional working proficiency (written and spoken) in English. Germain would be a plus.
• Experience assessing AI-based applications or utilizing AI-driven offensive security tooling would be a plus.

Your responsibilities

• As a Penetration Tester, you will be responsible for identifying and investigating security vulnerabilities at thyssenkrupp
• Interact with clients to determine their requirements for the tests
• Contributes to penetration testing methods, scripts and tests
• Support the vulnerability management and other security-related projects
• Create reports and recommendations from findings
• Mentor and support less experienced resources

About the project

What we offer

• At thyssenkrupp GSG, we believe great work starts with employee. Here’s what you can expect when you join our team:
• Global impact & open culture: Be part of a high-tech company shaping industries worldwide, where your ideas truly matter.
• Flexible workstyle: Enjoy remote work possibilities and flexible hours – start your day anytime between 7:00 and 10:00.
• Supportive onboarding & career growth: Get started with guidance from experienced mentors and follow clear paths for development and promotion.
• Continuous learning: Access to premium training platforms, foreign language classes, and a personal development budget.
• Wellbeing & community: Take care of yourself with private medical care, life insurance or join company sports initiatives.
• Team spirit & events – integration budget, interdepartmental teams, company and family activities to stay connected, even remotely.
• Extra perks: From anniversary bonuses and MyBenefit platform to the “under the pear tree” holiday benefit, we make sure your hard work is appreciated.

Benefits

• sharing the costs of sports activities
• private medical care
• sharing the costs of foreign language classes
• sharing the costs of professional training & courses
• life insurance
• remote work opportunities
• flexible working time
• integration events
• corporate sports team
• coffee / tea
• parking space for employees
• leisure zone
• extra social benefits
• charity initiatives
• MyBenefit Platform
• Foreign language classes
• Relocation package

thyssenkrupp Group Services Gdańsk