ThreatLocker

ThreatLocker

Windows Service Developer

Orlando, FL

Sponsorship not specifiedDetected 47 days ago
C++C#.NETCode ReviewSQLRESTCybersecurityTCP/IPDNSFirewall

About the role

  • ThreatLocker® is a leader in endpoint protection technologies, providing enterprise-level cybersecurity tools to improve the security of servers and endpoints.
  • ThreatLocker is seeking a highly skilled and self-driven Windows Service Developer to join our cybersecurity engineering team.
  • These services are critical components of ThreatLocker's endpoint protection platform - defending systems from the inside out.

Responsibilities

  • Design, develop, and maintain robust Windows Services using C#/.NET, with a focus on security, performance, and reliability.
  • Implement advanced cybersecurity features, such as privilege control, intrusion prevention, and data protection mechanisms.
  • Collaborate across teams to ensure services align with enterprise security and compliance standards.
  • In this role, you will design, implement, and optimize high-performance background services in C#/.NET, with a strong focus on Windows OS internals.
  • You will work closely with system internals, file systems, and network layers to build resilient, scalable, and secure service components.

Requirements

  • Expert-level proficiency in C#/.NET Framework and.
  • Strong understanding of Windows internals: services, registry, process lifecycle, and kernel-level concepts.
  • Solid grasp of network protocols (TCP/IP, HTTP/S, DNS) and experience with network control or firewall-level filtering.
  • Hands-on experience with debugging and profiling tools (e.g., WinDbg, Process Monitor).
  • Familiarity with SQL Server, including stored procedures and index optimization.
  • Experience designing and consuming RESTful APIs.
  • Strong understanding of secure coding practices and software design patterns.
  • Bachelor's degree in Computer Science, Software Engineering, or equivalent hands-on experience.

Nice to have

  • Experience with C/C++ interop, kernel development, or Windows filter drivers.

This listing is sourced directly from ThreatLocker's careers page and normalized into a canonical job model.