Windows Malware Researcher Detection Engineer Senior or Staff

Our Purpose

At SentinelOne we are driven by a clear purpose: to give the advantage to those who secure our future. As AI reshapes how organizations build operate and innovate the responsibility to protect them becomes more critical than ever. When you join SentinelOne your work helps protect global enterprises critical infrastructure and the technologies shaping tomorrow. If you are motivated by meaningful challenges and want your impact to be real measurable and global you will find purpose here.

About Us

SentinelOne is a company at the intersection of AI and security pioneering a new operating model for cybersecurity. Our AI-native platform unifies protection across endpoint cloud identity data and AI systems to deliver autonomous detection and response with clarity and speed. By combining real-time analytics intelligent automation and a unified data foundation we reduce noise simplify complexity and empower security teams to focus on what truly matters.

Our teams are builders problem-solvers and innovators committed to shaping the future of security. If you are excited to solve hard problems alongside talented mission-driven people we invite you to help us build a safer future for humanity.

What Are We Looking For

Were looking for people who are relentlessly curious and committed to continuous learning. AI is reshaping every function across our business and we enable every team member regardless of role or level to build fluency in AI tools and concepts. Those who thrive here actively seek out new solutions experiment thoughtfully and apply what they learn to drive better faster smarter outcomes.

As a Senior/Staff Windows Detection Engineer you will help shape the future of endpoint security through a unified converged platform that automatically prevents detects and responds to threats in real time. You will design and develop advanced Windows detections by combining deep system process inspection behavioral analysis and innovative machine learning techniques to identify and stop sophisticated attacks before they cause harm.

You will join a growing team of passionate security experts and technical leaders who think differently challenge assumptions and constantly explore new ways to outsmart this role you will hunt for emerging threats solve complex security problems and deliver high-impact detection capabilities with speed and precision.

What will you do

Primary responsibilities include:

• You will be responsible for detecting the newest malware and exploits based on SentinelOnes Endpoint Protection platform. Your role wont end with a hypothesis or a document - youll have an end to end responsibility for behaviour-based detection capabilities starting from reversing the samples designing new methods to detect or prevent those and implementing it in the product in the end (SW development in C23 and scripting in Lua).
• You will be developing and using internal research tools PoCs and discovering new ways to detect/prevent exploitation attacks (EoP drive-by attacks and more).
• At the end of the day your deliveries will enhance the security of dozens of millions of Windows endpoints which are protected by our platform.

What experience or knowledge should you bring

Ideal candidates will have:

• Proven experience with reverse engineering of x86/x64/ARM binaries
• Several years of experience in malware analysis (statically and dynamically)
• Several years of experience with C
• Excellent understanding of the Windows Internals - understanding how core system components (Process and Threads Virtual Memory and more) work behind the scenes
• Experienced with analysis tools such as: IDA WinDBG SysInternals etc.
• An advantage would be - kernel development experience Python experience and/or understanding of existing AVs internals

Why SentinelOne

AI is redefining how the world operates and rewriting the rules of security in real time and SentinelOne was built for this moment. From day one we architected an AI-native platform designed to operate at machine speed not as an add-on to legacy systems but as the foundation itself. If you want to build where innovation and impact move together this is that place.

We invest in our Sentinels with comprehensive competitive benefits designed to support you and your family:

• Enjoy flexible hybrid work in Prague (Karlin) Brno (Clubco) or remotely across CZ/SK. Only Prague-based employees are required to work from the office at least two days per week.
• Stock & Bonuses: Grant of Restricted Stock Units with a 4-year vesting plan annual performance-based bonuses and an employee stock purchase plan.
• Time Off & Well-being: Flexible Time Off on top of the standard 5 weeks vacation flexible paid sick days fully paid Short Term Sick/Nursing Leave 16-week parental leave grandparent leave and additional company holidays.
• Insurance & Health: Pension Insurance Contribution Premium life insurance Private medical care (for you and 1) and a Global Employee Assistance Program.
• Work Perks: Monthly meal and well-being allowance high-end MacBook/Windows laptop work-from-home support and in-office refreshments.
• Growth & Community: LinkedIn Learning internal mentoring educational support generous referral bonuses and optional company events (sports BBQs charity).

Be part of an inclusive innovative workplace that values belonging flexibility and growth!