Senior Windows Kernel Security Engineer

ThreatLocker, Inc.; Orlando (FL); On-site; USD 140,000 - 190,000; Full time

Job summary

ThreatLocker is seeking a Senior Windows Kernel Software Developer in Orlando to design, implement, and maintain kernel-mode filter drivers and security features for the Zero Trust platform. You will tackle file, process, registry, memory, and network monitoring while ensuring compatibility across Windows versions and high reliability in a security-focused environment.

Join a global cybersecurity team collaborating with QA, user-mode, security engineering, and threat research to deliver robust

Qualifications

• 7+ years of hands-on Windows kernel-mode driver development.
• Expert knowledge of Windows system internals (memory, I/O, processes, synchronization).
• Extensive experience with the Windows Driver Kit (WDK).
• Advanced kernel debugging, crash analysis, and performance profiling.
• Experience with Windows kernel synchronization and high-concurrency code.
• Security-focused solutions such as endpoint protection or monitoring.
• Strong understanding of Windows security concepts including code injection, hooking, and mitigations.
• Security-first mindset and strong problem-solving skills.

Responsibilities

• Design, develop, and maintain Windows kernel-mode filter drivers (minifilters, registry, network).
• Architect and implement advanced security monitoring and enforcement for file, process, registry, memory and network activity.
• Investigate Windows internals to develop low-level security features and bypass-resistant protections.
• Perform kernel debugging, crash dump analysis, and performance tuning using WinDbg and ETW.
• Develop secure, stable, scalable, and maintainable driver code.
• Maintain compatibility across Windows versions and platform changes.
• Collaborate with user-mode, QA, DevOps, security engineering, and threat research teams.

Skills

Kernel-mode driver

Windows internals

Memory management

I/O concepts

Process synchronization

Security concepts

Code injection

Hooking techniques

Debugging & profiling

Problem solving

Security mindset

Tools

Windows Driver Kit (WDK)

Job description

ThreatLocker is seeking a Senior Windows Kernel Software Developer in Orlando to design, implement, and maintain kernel-mode filter drivers and security features for the Zero Trust platform. You will tackle file, process, registry, memory, and network monitoring while ensuring compatibility across Windows versions and high reliability in a security-focused environment.

Join a global cybersecurity team collaborating with QA, user-mode, security engineering, and threat research to deliver robust