{"schemaVersion":"jobsearcher.job.v1","id":"9786ea74213c560aed379d72","url":"https://jobsearcher.com/jobs/9786ea74213c560aed379d72","canonicalUrl":"https://jobsearcher.com/jobs/9786ea74213c560aed379d72","title":"Windows Kernel Software Developer","description":"COMPANY OVERVIEW\n\nThreatLocker® is a global cybersecurity leader that stops cyberattacks before they happen. The company’s Zero Trust Platform prevents breaches from both known and unknown threats by allowing only explicitly trusted software and activity across endpoints, networks, and cloud systems. Built to deploy quickly and scale across complex environments, the platform reduces operational overhead while keeping business running uninterrupted. Headquartered in Orlando, Florida, with offices in Dublin, Dubai, and Brisbane, ThreatLocker protects over 70,000 organizations worldwide.\n\nPOSITION OVERVIEW\n\nWe are seeking a Windows Kernel Software Developer with hands-on experience in filter driver development and Windows system internals to join our cybersecurity product team.\n\nIn this role, you will build and maintain critical kernel-mode components that support ThreatLocker’s Zero Trust security platform, including file, process, registry, and network monitoring and enforcement.\n\nDEVELOPMENT – Full-Time\n\nThis role will be based in Orlando, FL and is an in-office position.\n\nJOB SCOPE\n\nThe Kernel Developer will be responsible for, but not limited to:\n\nDesign and develop Windows kernel-mode filter drivers, including file system minifilters, registry filters, and network filters.\nImplement security monitoring and enforcement for file, process, registry, and network activity.\nInvestigate Windows internals to develop low-level security features and bypass-resistant protections.\nPerform kernel debugging, crash dump analysis, and performance tuning using WinDbg, ETW, WPP, and related tools.\nDevelop secure, stable, and maintainable driver code.\nMaintain compatibility across supported Windows versions and platform changes.\nCollaborate with user-mode, QA, DevOps, and security engineering teams.\n\nREQUIRED QUALIFICATIONS\n\n5+ years of hands-on Windows kernel-mode driver development experience.\nExperience developing Windows filter drivers.\nStrong knowledge of Windows system internals, including memory management, I/O, processes, and the object manager.\nStrong C/C++ development skills.\nExperience with the Windows Driver Kit (WDK).\nStrong experience with kernel debugging and crash analysis.\nExperience with Windows kernel synchronization, concurrency, and performance-sensitive code.\nStrong problem-solving skills and a security-first engineering mindset.\n\nPREFERRED QUALIFICATIONS\n\nExperience with Windows file system minifilters and Filter Manager.\nExperience with Windows Filtering Platform (WFP).\nExperience with registry filtering and process monitoring.\nExperience with endpoint security, EDR, anti-malware, application control, or Zero Trust products.\nExperience with WinDbg, Driver Verifier, ETW, and WPP tracing.\nExperience with reverse engineering or malware analysis.\nFamiliarity with Windows kernel threat models and secure coding practices.\nExposure to Microsoft driver signing, WHQL, HLK, and driver submission processes.\nContributions to security research, open-source projects, publications, or technical talks.\n\nWORKING CONDITIONS\n\nThis is an in-office position based in Orlando, Florida.\nJob will generally be performed in an office environment but may require occasional travel.\nMust occasionally lift and/or move up to 25 pounds.\n\nA background check and drug/substance screening are required after a conditional offer. Employment will proceed only upon receiving clear results from both.\n\nThreatLocker also conducts randomized drug and substance testing approximately every 60 days, in line with the same screening standards.","company":"Threatlocker","rawCompany":"threatlocker","city":"Orlando","state":"FL","isRemote":false,"isActive":true,"createdAt":"2026-10-29T08:08:36.145Z","occupations":[{"code":"15-1252.00","title":"Software Developers","slug":"software-developers"},{"code":"15-1299.08","title":"Computer Systems Engineers/Architects","slug":"computer-systems-engineers-architects"},{"code":"15-1212.00","title":"Information Security Analysts","slug":"information-security-analysts"}],"industries":[{"code":"541512","title":"Computer Systems Design Services","slug":"computer-systems-design-services"},{"code":"513210","title":"Software Publishers","slug":"software-publishers"},{"code":"541511","title":"Custom Computer Programming Services","slug":"custom-computer-programming-services"}],"jobPosting":{"@context":"https://schema.org","@type":"JobPosting","title":"Windows Kernel Software Developer","description":"COMPANY OVERVIEW\n\nThreatLocker® is a global cybersecurity leader that stops cyberattacks before they happen. The company’s Zero Trust Platform prevents breaches from both known and unknown threats by allowing only explicitly trusted software and activity across endpoints, networks, and cloud systems. Built to deploy quickly and scale across complex environments, the platform reduces operational overhead while keeping business running uninterrupted. Headquartered in Orlando, Florida, with offices in Dublin, Dubai, and Brisbane, ThreatLocker protects over 70,000 organizations worldwide.\n\nPOSITION OVERVIEW\n\nWe are seeking a Windows Kernel Software Developer with hands-on experience in filter driver development and Windows system internals to join our cybersecurity product team.\n\nIn this role, you will build and maintain critical kernel-mode components that support ThreatLocker’s Zero Trust security platform, including file, process, registry, and network monitoring and enforcement.\n\nDEVELOPMENT – Full-Time\n\nThis role will be based in Orlando, FL and is an in-office position.\n\nJOB SCOPE\n\nThe Kernel Developer will be responsible for, but not limited to:\n\nDesign and develop Windows kernel-mode filter drivers, including file system minifilters, registry filters, and network filters.\nImplement security monitoring and enforcement for file, process, registry, and network activity.\nInvestigate Windows internals to develop low-level security features and bypass-resistant protections.\nPerform kernel debugging, crash dump analysis, and performance tuning using WinDbg, ETW, WPP, and related tools.\nDevelop secure, stable, and maintainable driver code.\nMaintain compatibility across supported Windows versions and platform changes.\nCollaborate with user-mode, QA, DevOps, and security engineering teams.\n\nREQUIRED QUALIFICATIONS\n\n5+ years of hands-on Windows kernel-mode driver development experience.\nExperience developing Windows filter drivers.\nStrong knowledge of Windows system internals, including memory management, I/O, processes, and the object manager.\nStrong C/C++ development skills.\nExperience with the Windows Driver Kit (WDK).\nStrong experience with kernel debugging and crash analysis.\nExperience with Windows kernel synchronization, concurrency, and performance-sensitive code.\nStrong problem-solving skills and a security-first engineering mindset.\n\nPREFERRED QUALIFICATIONS\n\nExperience with Windows file system minifilters and Filter Manager.\nExperience with Windows Filtering Platform (WFP).\nExperience with registry filtering and process monitoring.\nExperience with endpoint security, EDR, anti-malware, application control, or Zero Trust products.\nExperience with WinDbg, Driver Verifier, ETW, and WPP tracing.\nExperience with reverse engineering or malware analysis.\nFamiliarity with Windows kernel threat models and secure coding practices.\nExposure to Microsoft driver signing, WHQL, HLK, and driver submission processes.\nContributions to security research, open-source projects, publications, or technical talks.\n\nWORKING CONDITIONS\n\nThis is an in-office position based in Orlando, Florida.\nJob will generally be performed in an office environment but may require occasional travel.\nMust occasionally lift and/or move up to 25 pounds.\n\nA background check and drug/substance screening are required after a conditional offer. Employment will proceed only upon receiving clear results from both.\n\nThreatLocker also conducts randomized drug and substance testing approximately every 60 days, in line with the same screening standards.","datePosted":"2026-10-29T08:08:36.145Z","dateModified":"2026-10-29T08:08:36.145Z","hiringOrganization":{"@type":"Organization","name":"Threatlocker","sameAs":"https://jobsearcher.com"},"jobLocation":{"@type":"Place","address":{"@type":"PostalAddress","addressLocality":"Orlando","addressRegion":"FL","addressCountry":"US"}},"identifier":{"@type":"PropertyValue","name":"JobSearcher","value":"9786ea74213c560aed379d72"},"url":"https://jobsearcher.com/jobs/9786ea74213c560aed379d72"}}