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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Resideo Technologies has announced its intention to spin off ADI Global Distribution and establish it as a separate, publicly traded company. Under this plan, ADI will continue its role as a leading global wholesale distributor serving commercial and residential markets, while Resideo will retain its manufacturing and product-solutions business. Upon separation, both companies will operate independently to better serve their respective markets and customers. The spin-off is currently targeted for completion in the second half of 2026, subject to customary conditions.

Resideo is a $6.76 billion global manufacturer, developer, and distributor of technology-driven sensing and control solutions that help homeowners and businesses stay connected and in control of their comfort, security, energy use, and smart living. We focus on the professional channel, serving over 100,000 contractors, installers, dealers, and integrators across the HVAC, security, fire, electrical, and home comfort markets. Our products are found in more than 150 million residential and commercial spaces worldwide, with tens of millions of new devices sold annually. Trusted brands like Honeywell Home, First Alert, and Resideo power connected living for over 12.8 million customers through our Products & Solutions segment. Our ADI | Snap One segment spans 200+ stocking locations in 17 countries, offering a catalog of over 500,000 products from more than 1,000 manufacturers. With a global team of more than 14,000 employees, we offer the opportunity to make a real impact in a fast-growing, purpose-driven industry. Learn more at www.resideo.com.

At Resideo, we bring together diverse individuals to build the future of homes. Resideo is an equal opportunity employer. Qualified applicants will be considered without regard to age, race, creed, color, national origin, ancestry, marital status, affectional or sexual orientation, gender identity or expression, disability, nationality, sex, religion, or veteran status. For more information on applicable U.S. equal employment regulations, refer to the "EEO is the Law" poster, "EEO is the Law" Supplement Poster and the Pay Transparency Nondiscrimination Provision. Resideo complies with applicable equal employment laws in all countries where we do business. For more information on how we process your information in the job application process, please refer to Recruitment Privacy Notice. If you require a reasonable accommodation to apply for a job, please use Contact Us form for assistance.