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Senior Offensive Security Researcher

SentinelOne
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Hybrid (CZ/SK)Full-timePosted 4w ago

About the role

Senior offensive security researcher role at SentinelOne, focusing on researching evasions against sensors, tracking attacker tradecraft, and driving innovative detection strategies across Windows, Linux, and macOS within Endpoint, Cloud, and Identity contexts.

Responsibilities

  • Proactively look for the newest and most sophisticated attack techniques, deeply research and understand their internals, and emulate these attacks to assess and improve our detection engines.
  • Build tools to support detection assessments, create proofs-of-concept for the newest techniques and contribute to the design of innovative detection strategies.
  • Work closely with our Threat-Intelligence team and engineering detection teams to provide guidance and highlight gaps in our detection and visibility capabilities.

Qualifications

  • 4+ years of experience in Red Teaming / Security Research / Offensive Research with a deep understanding of Windows internals.
  • Hands-on experience with coding in Python and C/C++.
  • Deep understanding of the malware world (how malware operates, infamous families, evasion and exploitation techniques).
  • Experience in malware analysis (statically and dynamically) and reverse engineering (x86/x64).
  • Understanding of existing EDRs internals.
  • Experience writing detection signatures.
  • Experience leveraging agentic AI workflows for malware analysis and detection engineering tasks (reverse engineering, code auditing, signature writing).
  • Proven track record of conference speaking at security conferences or publications is an advantage

Skills

Required:Windows internals

Benefits

  • Restricted Stock Units (RSUs)
  • Employee Stock Purchase Plan (ESPP)
  • Performance-based bonus
  • Flexible time off, on top of the standard 5 weeks PTO
  • Paid company wellness days and fully paid short-term sick/nursing leave
  • Gender-neutral parental leave
  • Private medical care benefit
  • Life and disability insurance
  • Pension Insurance contribution
  • Global business travel medical insurance
  • Employee Assistance Program (EAP)
  • Global home office allowance
  • Meal allowance
  • Hybrid work in Prague (Karlin), Brno (Clubco) or remote in CZ/SK. Only Prague-based employees are required to work from the office at least 2 days/week.
  • Wellbeing allowance
  • MultiSport benefit program
  • Wellness Coach app
Last updated Oct 22, 2026. Interested? Apply on the company site.
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About SentinelOne

AI-Powered Enterprise Cybersecurity Platform

SentinelOne unifies AI-powered endpoint, cloud, identity, and data protection—enhanced by our Security Data Lake for seamless and efficient cybersecurity.

CybersecurityAI SecurityEndpoint SecurityCloud SecurityAI-SIEMIdentity SecurityEDRXDR
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