Posted: Jan 16, 2026
SentinelOne is looking for a Staff Windows Security Researcher to join their team. The successful candidate will work on real-world problems, making an impact by preventing customers from being attacked. The team leads the vulnerabilities, exploits, and anti-tampering research for all of their security products under the Windows platforms. 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 Benefits Salary from 4000 EUR/month Yearly % bonus depending on the performance of the company, paid out in 2 installments Flexible working hours & Full remote within Slovakia; optional membership in major co-working spaces 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.) Originally posted on Himalayas
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