Senior Windows Security Researcher

Summary

Join SentinelOne's exceptional research team and contribute to cutting-edge cybersecurity solutions. As a Security Research Expert, you will focus on researching and developing detection and protection assets for Windows platforms. Your responsibilities include assessing detection coverage against vulnerabilities and exploits, implementing innovative solutions, proposing new features, and conducting deep research into Windows OS internals. You will also develop new detection content for various engines, ensuring the quality and accuracy of deliverables. Collaboration with other teams is crucial, and opportunities to publish research are available. This role requires extensive experience in security research, Windows kernel development, vulnerability analysis, and reverse engineering.

Requirements

• 3+ years of hands-on experience in security research, ideally focused on Windows platforms
• Strong knowledge of Windows Kernel development and/or low-level research
• Deep understanding of vulnerabilities and exploitation techniques targeting Windows (both usermode and kernelmode)
• Excellent understanding of Windows Internals, including components like processes and threads, memory management, IPC, security models, system services, and tracing mechanisms
• Proven ability to conduct both offensive and defensive security research
• At least 3 years of experience in reverse engineering (x86/x64, static and dynamic)
• Solid understanding of C, C++, and assembly, especially for analyzing low-level code and understanding system behavior
• Hands-on experience with analysis tools such as IDA, Ghidra, WinDBG, SysInternals, etc
• Good understanding of EDR, EPP, and AV internals

Responsibilities

• Assessing and evaluating our detection and protection coverage against in the wild vulnerabilities, exploits, and anti-tampering techniques
• Closing the loop by conducting research to discover and implement innovative solutions for these security challenges
• Initiate and propose new features and capabilities, leveraging personal experience and expertise in security research
• Perform strategic long-term research projects that involve deep research of Windows OS internals, new detection techniques, and novel threats
• Continually learn about emerging vulnerabilities, exploits, threats, techniques, and new technologies on a regular basis
• As a security research expert, you’ll collaborate with many teams to help and support their work using your expertise, knowledge, or research
• You’ll be responsible for developing the new detection content for all of our engines that will improve our detection, protection, and visibility, reaching all of our millions of endpoints across the globe
• You’ll be responsible for the quality and accuracy of the deliverables that you’ll create and be accountable for them
• You’ll create, maintain, and improve existing infrastructure and tools that are being used by the team
• You will also be encouraged to write white papers, blogs, and articles (but only if you wish to)

Preferred Qualifications

• Experience developing EDR/EPP bypasses or self-protection mechanisms
• Windows driver development
• Modern exploit mitigations and their bypass techniques (e.g., CFG, HVCI, PatchGuard)
• Threat emulation, red teaming, or malware simulation frameworks
• Publishing technical research (e.g., CVEs, blogposts, or conference talks)

Benefits

• Flexible working hours, In Prague & nearby we're working in a hybrid model with offices in Karlin (brand new Missouri Park), remotely in the rest of CZ or SK, with optional Brno offices (Clubco Vlněna) for those who like to meet
• Generous employee stock plan in the form of grant of RSUs (restricted stock units) not options; 4 years vesting with 1-year cliff and then quarterly
• Yearly bonus depending on the performance of the company, paid out in 2 installments
• Flexible Time Off (on top of the standard 5 weeks of vacation)
• Flexible Paid Sick Days
• Fully Paid Short Term Sick/Short Term Nursing Leave
• Global gender-neutral Parental Leave (16 weeks, beyond the leave provided by the local laws) & Grandparent Leave
• Volunteering paid day off & Additional paid Company holidays off (e.g. 4 days in 2022)
• Pension insurance contribution
• Premium Life Insurance covered by S1
• Monthly Meal & Wellbeing Allowance
• Private medical care membership (English speaking) for you and your +1
• Global Employee Assistance Program (confidential counseling related to both personal and work life matters), Wellness Coach:Mind Body Sleep app company access (sessions, audiobooks, classes, private coaching etc.)
• High-end MacBook or Windows laptop, Home-office-setup gear & on top of that additional WFH Allowance
• Udemy Business platform for Hard/Soft skills Training, internal mentoring 'MentorOne' & Support for your further educational activities/trainings
• Above-standard referral bonus
• On top of RSUs, you can benefit also from our attractive ESPP (employee stock purchase plan)
• Refreshments and snacks at the offices
• Optional company events for those who like to meet outside of work too (sport, BBQ, charity etc.)