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ThreatLocker Tech Stack

Zero Trust endpoint security blocking unknown application vulnerabilities

Computer and Network Security Orlando, Florida 501–1,000 employees Founded 2017 Privately Held

ThreatLocker builds endpoint security software around Windows kernel-mode filtering and application whitelisting, deployed across 50,000+ businesses. The stack is .NET and C# on Windows with driver-level code (Windows Driver Kit, WinDbg), paired with Angular/React Native frontends—a topology built for low-level OS control rather than cloud APIs. Active hiring across marketing (7 roles) and engineering (5 roles) suggests push into brand positioning and Windows threat-detection depth, while internal pain points cluster around financial reporting, data governance, and compliance—operational friction typical of security vendors scaling past startup phase.

Tech Stack 76 technologies

Core StackAngular .NET SQL Server Docker Jest Cypress React Native JavaScript Windows Server Hyper-V Active Directory C# Swift Java Python SonarQube SASS LESS PrimeNG RxJS Git DNS Windows C/C++ Windows Driver Kit WinDbg Fortify Checkmarx Veracode Microsoft 365+45 more

What ThreatLocker Is Building

Challenges

  • Financial reporting accuracy
  • Ensuring compliance with legal standards
  • Data privacy regulation compliance
  • Risk mitigation
  • Reducing deal errors
  • Maintaining high-traffic website
  • Master data management challenges
  • Data governance challenges
  • Duplicate or outdated data
  • Inaccurate marketing data

Active Projects

  • Next-generation threat detection and prevention on windows
  • Kernel-mode filter drivers for security monitoring
  • Low-level security features and bypass-resistant protections
  • Develop and maintain solutions using microsoft graph api and other microsoft cloud apis
  • Guide technical direction and implementation of product requests into large-scale end-to-end solutions
  • Zero trust world conference
  • Threatlocker magazine
  • Compliance projects for data privacy regulations
  • Litigation support
  • Trademark issue resolution

Hiring Activity

Steady30 roles · 15 in 30d

Department

Marketing
7
Engineering
5
Finance
3
Ops
3
Sales
3
Security
3
Data
2
Legal
1

Seniority

Mid
13
Senior
9
Junior
6
Lead
1
Manager
1
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About ThreatLocker

ThreatLocker is a privately held endpoint security company founded in 2017 and headquartered in Orlando, Florida. The product enforces Zero Trust principles on Windows endpoints by blocking unknown applications at the kernel level, preventing both known and unknown vulnerabilities from executing. The company serves mid-market and enterprise businesses across IT, healthcare, finance, and other regulated sectors. With 501–1,000 employees and 50,000+ customer organizations, ThreatLocker operates at mid-market scale. Current initiatives span next-generation threat detection, Microsoft Graph API integrations for cloud-identity workflows, compliance automation (data privacy regulations), and a customer conference (Zero Trust World Conference).

HeadquartersOrlando, Florida
Company Size501–1,000 employees
Founded2017
Hiring MarketsUnited States

Frequently Asked Questions

What technology stack does ThreatLocker use?

Backend: .NET, C#, SQL Server, Windows Driver Kit for kernel-mode security. Frontend: Angular, React Native. DevOps: Docker, Git. Testing: Jest, Cypress, SonarQube. Security scanning: Fortify, Checkmarx, Veracode.

How many customers does ThreatLocker have?

Over 50,000 businesses worldwide use ThreatLocker solutions across endpoint security and Zero Trust deployments.

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