Senior Advanced Penetration Tester

Resideo is seeking a highly driven Senior Advanced Penetration Tester to play a pivotal role in safeguarding our systems, products, and customers. In this role, you will help protect customer data by leading complex security assessment and penetration tests, ensure product security, and strengthen privacy across everything we build. In addition, you will manage cross-functional projects, recommend improvements to enhance team efficiency and support with mentoring junior team members.

You will proactively hunt for vulnerabilities across a broad technology landscape—including hardware, web and mobile applications, cloud environments, and on‑premise infrastructure. We’re looking for someone who thinks like an attacker, enjoys ethically breaking systems, and takes real satisfaction in uncovering and fixing complex security issues across multiple domains

We’re keen to connect with candidates who bring strong expertise in offensive security and penetration testing, and who are genuinely passionate about continuous self‑development.

At Resideo, we actively invest in your growth to help you thrive in your role. This includes funding for advanced, industry‑recognised certifications such as OSCP, OSEP, and OSWE, alongside ongoing learning opportunities that keep you at the forefront of the offensive security landscape.

JOB DUTIES

• Lead and perform in-depth penetration tests on networks, applications, and systems to identify and mitigate security vulnerabilities
• Manage smaller projects that span multiple departments or functions, ensuring timely and high-quality deliverables
• Utilise and mentor others in the use of advanced tools and methodologies for penetration testing and vulnerability assessment
• Document findings and provide detailed reports with actionable recommendations.
• Coordinate efforts across multiple teams or departments to achieve common objectives
• Ensure all testing activities adhere to company policies and industry standards
• Drive quality improvements and suggest innovative solutions to security challenges
• Ability to negotiate timelines, deliverables, and resource allocation
• Collaboration: Work with team members and other departments to achieve common objectives and ensure the success of cross-functional projects.
• Compliance: Ensure all testing activities adhere to company policies and industry standards
• Self-Development: Dedicate time during your working week to build your skills and prepare for relevant industry certifications, fully funded by Resideo

YOU MUST HAVE

• Minimum 5 years' experience in cyber security, with a strong focus on penetration testing and vulnerability assessment
• Strong knowledge of Windows/Linux Administration
• Practical knowledge of penetration testing tools and techniques
• Familiarity with Active Directory
• The ability to analyse complex security problems and propose effective, practical solutions
• Fluency in English

WE VALUE

• One or more advanced certifications such as OSCP, OSEP, or OSWE
• The ability to collaborate effectively with team members and cross‑functional stakeholders to achieve shared goals
• Mastery of technical skills and domain-specific expertise required for project management or mentoring others
• Fluency in Czech

WHAT'S IN IT FOR YOU

• Funding provided to support your self-development
• 5 weeks of paid vacation
• Hybrid work model
• Flexible working hours
• On-site canteen & home office meal vouchers
• Pension plan or DIP contributions
• Discounted phone plans & company product discounts
• Multisport Card & cafeteria program

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