Windows Services Engineer - C#/.NET Security

SKY VC; Orlando (FL); Hybrid; USD 120,000 - 160,000; Full time

Job summary

ThreatLocker in Orlando, FL is seeking a skilled Windows Service Developer to design, implement, and optimize high‑performance background services in C#/.NET, with a strong focus on Windows OS internals and security.

You will work on core components of ThreatLocker’s endpoint protection platform, collaborating with system internals, file systems, and network layers to build resilient, scalable services in an in‑office role.

Qualifications

• Expert-level proficiency in C#/.NET and async/multithreading.
• Deep understanding of Windows internals and OS architecture.
• Experience with RESTful APIs, SQL Server, and network protocols.
• Bachelor's degree or equivalent in CS/SE.

Responsibilities

• Design, develop, and maintain Windows Services in C#/.NET, with a focus on security, performance, and reliability.
• Work with Windows APIs, file systems, and network stack integration.
• Implement security, performance, and reliability enhancements for services.
• Diagnose issues related to concurrency, memory, and network communication.
• Collaborate across teams to align with enterprise security and compliance standards.
• Participate in code reviews and improve code quality.

Skills

C#/.NET

Asynchronous programming

Multithreading

Windows internals

Network protocols

RESTful APIs

Secure coding

SQL Server

Debugging/profiling

Education

Bachelor's degree in CS/SE

Tools

WinDbg

Process Monitor

Job description

ThreatLocker in Orlando, FL is seeking a skilled Windows Service Developer to design, implement, and optimize high‑performance background services in C#/.NET, with a strong focus on Windows OS internals and security.

You will work on core components of ThreatLocker’s endpoint protection platform, collaborating with system internals, file systems, and network layers to build resilient, scalable services in an in‑office role.