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Senior Penetration Tester
Business Area: Cybersecurity Research & Offensive Security
Work Model: Hybrid - 6 days per month from the office in Kraków (preferred) or Warsaw
Contract Type: B2B
Role Overview
We are looking for an experienced Senior Penetration Tester to join a global Cybersecurity team. In this role, you will lead and execute advanced security assessments across web, mobile, infrastructure, and API environments, ensuring high-quality delivery and clear risk articulation to both technical and non-technical stakeholders.
You will act as a subject matter expert (SME), driving penetration testing initiatives, mentoring junior team members, and contributing to the continuous improvement of cybersecurity standards, processes, and tooling.
Key Responsibilities
- Lead and deliver end-to-end penetration tests across:
- Mobile applications (iOS & Android)
- Web applications and APIs
- Infrastructure and network environments
- Perform manual penetration testing, source code reviews, and configuration assessments
- Clearly document findings, including root cause analysis and business risk impact
- Design and demonstrate proof-of-concept exploits when required
- Collaborate with DevOps and engineering teams to:
- Support remediation efforts
- Improve secure development practices
- Automate repetitive security testing tasks
- Assess product release risk and identify potential misuse scenarios
- Track remediation activities and support risk acceptance processes
- Support incident response activities when required
- Evaluate new security testing technologies and recommend improvements
- Monitor security industry developments and emerging threats
- Contribute to process enhancements and quality improvements
- Mentor junior team members and support knowledge sharing
What We Offer
- B2B contract
- Hybrid work model (6 days/month in office - Kraków preferred or Warsaw)
- Private medical care (LuxMed)
- MyBenefit cafeteria platform
- Dedicated support from Contractor Care team
