At Mindbox we connect top IT talents with technology projects for leading enterprises across Europe.
Are you passionate about uncovering vulnerabilities and making systems more secure? Join us as a Senior Penetration Tester!
As a Senior Penetration Tester, you will provide subject matter expertise in penetration testing to support global cybersecurity initiatives. You will lead and perform penetration tests across a wide range of technologies, identify vulnerabilities, and clearly articulate risks to the business. This role involves working within virtual teams of security and technical specialists, mentoring junior team members, and contributing to the continuous improvement of cybersecurity services and processes.
Sounds like your kind of challenge?
What you’ll be doing
- Design, lead, and execute penetration tests across various technologies.
- Perform manual penetration testing, source code reviews, and configuration assessments for mobile apps, infrastructure, networks, web services, and APIs.
- Document findings with clear root cause and risk analysis.
- Represent the cybersecurity function as a technical SME in internal and external discussions.
- Collaborate with stakeholders to enhance cybersecurity strategy and ensure compliance with internal and external requirements.
- Mentor and guide less experienced team members.
- Continuously improve testing processes and remove inefficiencies in line with the cybersecurity strategy.
Note: Detailed project information will be shared during the recruitment process.
What you get in return
- Flexible cooperation model – choose the form that suits you best
(B2B, employment contract, etc.) - Hybrid work setup – remote days available depending on the client’s arrangements (6 days per month from Cracow office)
- Collaborative team culture – work alongside experienced professionals eager to share knowledge
- Continuous development – access to training platforms and growth opportunities
- Comprehensive benefits – including Interpolska Health Care, Multisport card, Warta Insurance, and more
- High quality equipment – laptop and essential software provided
Who we’re looking for
Experience and Skills:
- Minimum 3 years of hands-on penetration testing experience.
- Expertise in at least one penetration testing domain (infrastructure, applications, or mobile).
- Strong understanding of iOS and Android security models and common vulnerabilities in mobile and financial applications.
- Practical experience with infrastructure, web, and mobile penetration testing using manual and automated methods.
- Excellent knowledge of TCP/IP and related security implications.
- Strong web application testing experience.
- Proven programming/scripting skills.
- Understanding of applied cryptography in application development.
- Ability to explain security concepts to both technical and non-technical audiences.
- Excellent English communication skills (written and verbal).
Certifications:
- No mandatory certifications, but relevant industry certifications are a plus.
Soft Skills:
- Critical thinking and problem-solving abilities.
- Ability to work independently and manage time effectively.
- Entrepreneurial mindset and adaptability in loosely defined scenarios.
Joining this project you’ll become part of Mindbox – a tech-driven company where consulting, engineering, and talent meet to build meaningful digital solutions. We’ll back you up every step of the way, accelerate your development, and ensure your skills make a difference.
I will handle your recruitment
Katarzyna Sępkowska
