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Senior Offensive Security Researcher

SentinelOne· Not specified
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Hybrid (Prague / Brno / Remote CZ/SK)Full-timePosted 3w ago

About the role

Senior Offensive Security Researcher at SentinelOne focusing on researching evasions, attacker tooling, and advancing detection capabilities across Windows, Linux, and macOS within Endpoint, Cloud, and Identity domains.

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 internalsPythonC/C++Malware analysisDetection signatures
Nice to have:EDR internalsAI workflows for malware analysis

Benefits

  • Equity & Rewards: RSUs, ESPP, Performance-based bonus
  • Time Off & Wellbeing: Flexible time off, 5 weeks PTO, wellness days, paid sick/nursing leave, gender-neutral parental leave
  • Insurance & Financial Security: Private medical care, life and disability insurance, pension contribution, global travel medical insurance, EAP
  • Work Perks & Flexibility: Global home office allowance, meal allowance, hybrid work in Prague/Brno or remote in CZ/SK (Prague office 2 days/week)
  • Wellness & Lifestyle: Wellbeing allowance, MultiSport, 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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