Senior Windows Security Researcher

Summary

Join SentinelOne's exceptional research team and redefine cybersecurity by leveraging AI-powered innovation. As a Security Research Expert, you will assess and evaluate detection and protection coverage against real-world vulnerabilities and exploits. You will conduct in-depth research, develop innovative solutions, and propose new features and capabilities. Your responsibilities include developing detection content for security engines, ensuring the quality and accuracy of deliverables, and maintaining infrastructure and tools. Collaborate with various teams to support their work using your expertise. This role requires extensive experience in security research, Windows platform expertise, 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

• Salary from 4000 EUR/month
• Yearly % bonus depending on the performance of the company, paid out in 2 installments
• *The final base salary component can be increased accordingly to individual skills and experience of the selected candidate
• Flexible working hours & Full remote within Slovakia ; optional membership in major co-working spaces; in Czechia we also have offices in Prague or Brno
• Generous employee stock plan in the form of RSUs (restricted stock units) grant not options; 4 years vesting with 1 year cliff and then quarterly
• Meal Allowance (maximum value of the employer’s contribution per day: €4.29)
• Wellbeing Allowance (€120/month)
• 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
• 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
• Yearly bonus depending on the performance of the company
• On top of RSUs, you can benefit also from our attractive ESPP (employee stock purchase plan)
• Optional company events for those who like to meet outside of work too - mostly in Czechia expensed as business trip (sport, BBQ, charity etc.)