Principal Mobile Application Penetration Tester

Expected, iOS, Android

Optional, Java, Swift, Objective-C, Kotlin, OAuth2, JWT

Operating system, Windows

About the project, We’re looking for a Principal Mobile Application Penetration Tester to join a global cyber security organization and raise the bar on how we test and protect mobile apps. This is a hands-on, principal role where you’ll lead complex mobile security assessments from start to finish, influence standards, and guide stakeholders in navigating an ever-evolving threat landscape., , You’ll work at the core of mobile security—testing iOS and Android applications, innovating on methodologies, and driving excellence across teams worldwide. If you’re passionate about being a trusted security leader, this role is for you!, , Sounds like your kind of challenge?

Your responsibilities, Lead end-to-end mobile app penetration tests: scoping, planning, execution, and reporting, Deliver high-quality testing outputs with actionable remediation guidance, Serve as the escalation point for complex technical challenges and high-impact findings, Set and evolve mobile testing methodologies and frameworks across the organization, Collaborate with global penetration testing leads to ensure consistency across regions, Drive improvements in tooling, automation, and best practices for mobile security, Support vulnerability management lifecycle and incident response when needed, Stay ahead of emerging mobile attack vectors, tools, and security trends, Note: Detailed project information will be shared during the recruitment process.

3–5 years in penetration testing with a strong focus on mobile application security, Hands-on experience testing iOS and Android apps, addressing platform-specific risks, Expertise in mobile security plus at least one additional domain (web apps or infrastructure), Strong understanding of vulnerabilities, attack techniques, and security principles, Knowledge of TCP/IP fundamentals, network security, and OWASP mobile standards (MASVS, MSTG), Experience with manual and automated testing tools, Strong problem-solving, analytical skills, and ability to communicate complex topics clearly, Familiarity with scripting or programming

Optional, Experience with Corellium platform, SAST/DAST/IAST tools, or secure SDLC, Code review experience in Java, Swift, Objective-C, or Kotlin, Understanding of OAuth2, JWT, biometrics, and SSL pinning, Familiarity with microservices, APIs, and cloud environments, Experience in financial or other regulated industries

This is how we work, agile

This is how we work on a project, Continuous Deployment, Continuous Integration, test automation, testing environments, manual tests

What we offer, Flexible cooperation model – choose the form that suits you best (B2B, employment contract, etc.)., Hybrid work setup – Kraków: 6 days/month on-site., 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.

Benefits, sharing the costs of sports activities, private medical care, sharing the costs of professional training & courses, life insurance

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.

Mindbox Sp. z o.o., At Mindbox, we connect top IT talents with technology projects for leading enterprises across Europe., Our focus is on matching your skills with work that matters – projects that use modern tech stacks, solve real business challenges, and give you space to grow. By joining us, you’ll deliver technology solutions for well-known brands, supported by the Mindbox team that values knowledge-sharing and continuous development. We make sure you have the tools, flexibility, and guidance to do your best work – and to keep moving forward in your career.