Senior Software Engineer

Hybrid Details:
Dallas, TX - Hybrid

Duration:
6 months (with potential for conversion)

Job Description
We are currently seeking a Sr. Software Engineer to help our client design, implement, and optimize robust cross-platform agents for Windows (main need) and small macOS environments, focusing on kernel-level networking, systems, and integration. You will leverage your deep expertise in Windows and macOS kernel development, networking stacks, and system-level programming to deliver secure, high-performance agents that seamlessly integrate with user OS networking and security frameworks.

About The Role
This role is designed for Windows Applications Developers/Engineers with deep understanding of filtering frameworks and has used Windows Filtering Platform (WFP) for network and firewall creation. You understand the kernel-level modules (LKMs) and are hands-on. You understand IP networking and know DPS protocols as well as IP routing. Maybe you have experience working on enterprise VPNs or ZeroTrust products. Maybe your background s more around XDR or MDR programming, but you re an Engineer or strong Systems Programmer who s worked in C/C++/Rust and have a thirst for learning.

If you ve used, designed, built, deployed a tracer and/or a profiler then this role is for you

Responsibilities

• Engineer native agents for Windows (and macOS) platforms, utilizing platform-specific APIs and kernel interfaces.
• Build cross-platform agent frameworks using Rust and Python with Tauri/React-based user interfaces.
• Design + implement networking solutions using Windows Filtering Platform (WFP) and macOS Network Extensions.
• Develop drivers and system components using the Windows Driver Kit (WDK) and Win32 APIs.
• Create and maintain macOS extensions
• Leverage BSD networking stack capabilities including packet filter frameworks.
• Build and manage monitoring tools that help track performance and troubleshoot issues across Windows and macOS systems.
• Identify and resolve advanced production problems involving system drivers, kernel-level processes, and system extensions.
• Work closely with fellow engineers to create smooth, reliable features that function consistently across multiple platforms and maintain stable API integrations for the client platform.
• Incorporate strong security and compliance standards at every stage of the agent s lifecycle from development and code signing to release.
• Streamline how agents are built, tested, and deployed by automating workflows through modern CI/CD pipelines.
• Core Competencies
• Hands-on experience developing Windows kernel-mode drivers using the Windows Driver Kit (WDK).
• Strong background working with the Windows Filtering Platform (WFP) to manage and inspect network traffic.
• Strong knowledge of Win32 API and Windows system programming
• Understanding of Windows networking stack architecture and kernel networking components
• Experience applying Windows security practices including code signing, driver certification, and related compliance processes.
• Skilled in macOS and BSD networking stacks, including working with packet filtering frameworks.
• Proficiency with Network Extension and System Extension frameworks to build secure, performant agents
• Good grasp of macOS kernel architecture and experience contributing to XNU-based development.
• Understanding of macOS app distribution, signing, and notarization workflows.
• Proficient in Rust or C/C++ for system-level development and Python for backend integration or automation.
• Familiar with cross-platform build systems, packaging, and deployment pipelines.
• Strong foundation in computer networking fundamentals TCP/IP, HTTP, DNS, routing, firewalls, load balancing, and network security.
• Experience implementing and managing observability tools like Prometheus, Grafana, OpenTelemetry, or ELK/Loki to monitor system health.
• Skilled at performance analysis and troubleshooting using platform-specific tools like Windows Performance Toolkit, macOS Instruments, and network analyzers.
• Confident debugging complex kernel-level issues using crash dumps, kernel debuggers, and tracing utilities
• Experienced with modern development workflows Git for version control, CI/CD tools like GitHub Actions or CircleCI, and project tracking tools like Jira or Azure DevOps.