Senior Windows Security Researcher

SentinelOne; Italy (TX); Remote; USD 90,000 - 130,000; Full time

Job summary

At a leading cybersecurity firm, you’ll join a dynamic team focused on innovative security research addressing significant threats. This remote role emphasizes Windows vulnerability assessment and product protection, while offering competitive compensation, generous stock options, and a collaborative workspace culture.

Benefits

Flexible working hours

Generous employee stock plan

Yearly performance bonus

Private medical insurance

Flexible time off (up to 30 days)

Global parental leave

Volunteering paid day off

Udemy Business platform access

Qualifications

• 3+ years of hands-on experience in security research focused on Windows.
• Strong knowledge of Windows internals and exploitation techniques.
• Experience with reverse engineering and low-level code analysis.

Responsibilities

• Conduct vulnerability research and develop novel detection techniques.
• Collaborate with teams to improve security products and defense mechanisms.
• Develop new detection content for security engines across endpoints.

Skills

Security research

Windows Kernel development

Vulnerability assessment

Reverse engineering

C/C++ programming

Education

Bachelor’s or higher in Computer Science or related field

Tools

IDA

Ghidra

WinDBG

SysInternals

Job description

About Us

At SentinelOne, we’re redefining cybersecurity by pushing the limits of what’s possible—leveraging AI-powered, data-driven innovation to stay ahead of tomorrow’s threats.

From building industry-leading products to cultivating an exceptional company culture, our core values guide everything we do. We’re looking for passionate individuals who thrive in collaborative environments and are eager to drive impact. If you’re excited about solving complex challenges in bold, innovative ways, we’d love to connect with you.

What are we looking for?

We are looking for talented security researchers, people who look at the world differently, who explore, "hunt" and live to beat the system and challenge it. People who are in pursuit of outsmarting the malware and overcoming it.

Why us?

Because you will work on real-world problems with risks of millions of dollars (protecting against Ransomware and other threats) and make an impact by preventing our customers from appearing in global news after being attacked. You will be joining a technologically cutting-edge project and will be able to influence the architecture, design, and building of our core platform. You will meet extraordinary challenges and work with the very BEST in the industry.

What will you do?

You’ll be part of an exceptional research team that will ensure we provide the best detection, protection, and visibility capabilities to our customers at any given time. The team leads the vulnerabilities, exploits and anti-tampering research for all of our security products under the Windows platforms. The team does it by performing in-depth analysis and research of vulnerabilities and exploits, while also being responsible for closing the loop through the development and deployment of detection assets to millions of endpoints across the globe. You’ll be working closely with other detection teams to ensure our customers get the best security products they can. Your time will be focus on research and detection & protection assets.

Research

• 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.

Detection And Protection assets

• 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).

What experience or knowledge should you bring?

• 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.

Nice to have (but not required):

• 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).

Why us?

Because you will work on real-world problems with risks of millions of dollars (protecting against Ransomware and other threats) and make an impact by preventing our customers from appearing in global news after being attacked. You will be joining a technologically cutting-edge project and will be able to influence the architecture, design, and building of our core platform. You will meet extraordinary challenges and work with the very BEST in the industry.

On top of that we offer you

• Flexible working hours,this is a 100% remote role based within Italy; we provide optional membership in major coworking chains
• Currently for this role in Italy we are able to consider onlycandidates that are already eligible to work in the EU at the time of applying
• Optionally for those willing to relocate to the Czech Republic relocation assistance is available for any candidates that are already eligible to work in the EUat the time of applying

• Generous employee stock plan in the form of RSUs (restricted stock units) grantnot options; 4 years vesting with 1 year cliff and then quarterly, stock refresh yearly
• Yearly bonus depending on the performance of the company, paid out in 2 installments
• Quadro benefits - Private Medical, Life Insurance, Accident Insurance, Study funds and Healthcare benefits
• Flexible time off (up to 30 paid days off per annum!)
• 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)
• Global Employee Assistance Program (confidential counseling related to both personal and work life matters)
• Udemy Business platform for Hard/Soft skills Training, internal mentoring 'MentorOne' & Support for your further educational activities/trainings
• Above-standard referral bonus

& Aditional country-specific benefits to Italy

SentinelOne is proud to be an Equal Employment Opportunity and Affirmative Action employer. We do not discriminate based upon race, religion, color, national origin, gender (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity, gender expression, age, status as a protected veteran, status as an individual with a disability, or other applicable legally protected characteristics.

SentinelOne participates in the E-Verify Program for all U.S. based roles.