Windows Services Developer (C#/.NET) for Cybersecurity

ADP, Inc.; Orlando (FL); On-site; USD 100,000 - 150,000; Full time

Job summary

ThreatLocker is seeking a skilled Windows Services Developer to design, implement, and optimize high-performance background services in C#/.NET with emphasis on Windows internals and security. You will work on components of ThreatLocker’s endpoint protection platform to defend systems from inside out.

The ideal candidate has deep Windows architecture knowledge, secure coding practices, and experience with debugging, profiling, and performance optimization.

Qualifications

• Expert-level proficiency in C#/.NET Framework and .NET Core.
• Strong understanding of Windows internals and kernel-level concepts.
• Experience with RESTful APIs and secure coding practices.

Responsibilities

• Design, develop, and maintain Windows Services using C#/.NET with a focus on security, performance, and reliability.
• Work with low-level Windows components including Windows APIs and file system hooks.
• Implement cybersecurity features such as privilege control, intrusion prevention, and data protection mechanisms.
• Diagnose and resolve performance, concurrency, memory, and network issues.
• Collaborate across teams to ensure alignment with security and compliance standards.
• Participate in code reviews and maintain a clean, maintainable codebase.
• Enhance service resilience, monitoring, and observability.

Skills

C#/.NET

Asynchronous programming

Windows internals

Network protocols

Debugging tools

SQL Server

RESTful APIs

Secure coding

Bachelor's degree

Education

Bachelor’s degree in Computer Science or similar

Tools

WinDbg

Process Monitor

Job description

ThreatLocker is seeking a skilled Windows Services Developer to design, implement, and optimize high-performance background services in C#/.NET with emphasis on Windows internals and security. You will work on components of ThreatLocker’s endpoint protection platform to defend systems from inside out.

The ideal candidate has deep Windows architecture knowledge, secure coding practices, and experience with debugging, profiling, and performance optimization.