Senior Windows Kernel Driver Engineer – Cybersecurity Focus

ThreatLocker Inc.; Orlando, Northern (FL, KY); Hybrid; USD 120,000 - 170,000; Full time

Job summary

ThreatLocker Inc. is seeking a Senior Kernel Software Developer in Orlando, FL to join our cybersecurity product team. You will design and maintain kernel-mode components and filter drivers that power next-generation threat detection and response on Windows systems.

This in-office role requires deep Windows internals knowledge and a security-first mindset. You will collaborate with threat research, detection, and user-mode engineering teams to build scalable security solutions while ensuring

Qualifications

• 5+ years building Windows kernel-mode drivers, especially filter drivers.
• Deep knowledge of Windows internals (memory, I/O, object manager).
• Proficiency in C/C++, WDK, and kernel debugging tools.
• Experience in cybersecurity, EDR, or kernel-level monitoring.
• Strong problem-solving and security-first mindset.

Responsibilities

• Design and develop kernel-mode filter drivers to support security monitoring.
• Investigate Windows internals and implement protection features.
• Collaborate with threat research and user-mode teams.
• Perform kernel debugging, crash dump analysis, and performance tuning.
• Ensure driver code meets Microsoft signing and certification standards.
• Monitor Windows platform changes for compatibility.

Skills

Windows kernel-mode drivers

C/C++

WDK

Kernel debugging

Security / endpoint protection

Tools

WinDbg

ETW

Job description

ThreatLocker Inc. is seeking a Senior Kernel Software Developer in Orlando, FL to join our cybersecurity product team. You will design and maintain kernel-mode components and filter drivers that power next-generation threat detection and response on Windows systems.

This in-office role requires deep Windows internals knowledge and a security-first mindset. You will collaborate with threat research, detection, and user-mode engineering teams to build scalable security solutions while ensuring