Senior Software Engineer (Win32 API)

AGS

Dallas (TX)

On-site

USD 80,000 - 120,000

Full time

14 days+

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Benefits offered by this job

Medical, dental, and vision insurance

401K

Disability and Life Insurance

Flexible PTO policy

Casual, laid-back work environment

Free refreshments

Job summary

A leading tech company in Texas is seeking a Mid-Senior level software engineer to design and implement agents for Windows and macOS systems. This role involves kernel-level networking, utilizing WDK and developing observability stacks. Ideal candidates have expertise in developing cross-platform solutions using Rust and Python. This full-time position offers comprehensive benefits including health insurance and a casual work environment.

Qualifications

Advanced proficiency in kernel-level driver development on Windows/macOS.
Strong knowledge of networking protocols and their implementation in systems.
Experience in CI/CD for deploying multi-platform applications.

Responsibilities

Design and implement native agents for Windows and macOS.
Develop kernel-level networking solutions for both operating systems.
Automate build and deployment workflows using CI/CD.

Skills

Windows Driver Kit (WDK)

Windows Filtering Platform (WFP)

Win32 API

Rust

Python

macOS networking stack

Cross-platform building

Observability stacks

Tools

Windows Driver Kit (WDK)

macOS Network Extensions

Tauri/React

Job description

Job Overview

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This range is provided by AGS. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more.

My client delivers infrastructure software purpose-built to empower managed service providers (MSPs) and IT professionals (ITSPs) with cloud solutions that connect and secure both traditional and hybrid workforces.

Their secure solution provides identity-based network security and connectivity within a single platform that enables businesses to deploy zero-trust networks, enforce compliance and eliminate traditional firewalls and VPNs.

Their technology uniquely aligns with the operating needs of MSPs and enables their customers to experience seamless communication and collaboration regardless of physical location.

Here's a closer look at this key role:

Design, implement, and optimize robust cross-platform agents for Windows and macOS environments, focusing on kernel-level networking, system extensions, and low-level system integration. Leverage deep expertise in Windows and macOS kernel development, networking stacks, and system-level programming to deliver secure, high-performance agents that seamlessly integrate with operating system networking and security frameworks.

Responsibilities

Architect, develop, and maintain native agents for Windows and macOS platforms, utilizing platform-specific APIs and kernel interfaces.
Design and implement kernel-level networking solutions using Windows Filtering Platform (WFP) and macOS Network Extensions.
Develop Windows drivers and system components using the Windows Driver Kit (WDK) and Win32 APIs.
Create and maintain macOS system extensions and leverage BSD networking stack capabilities including packet filter frameworks.
Build cross-platform agent frameworks using Rust and Python with Tauri/React-based user interfaces.
Analyze and optimize network performance by understanding Windows and macOS kernel networking decisions and packet routing.
Implement and maintain observability stacks (metrics, logs, events, traces) for cross-platform agent monitoring and debugging.
Debug complex production issues involving kernel-level interactions, driver behavior, and system extension functionality.
Collaborate with other engineers to deliver seamless cross-platform features and maintain API contracts for the ControlOne platform.
Ensure security and compliance best practices are embedded throughout the agent lifecycle, including code signing and platform security requirements.
Automate build, deployment, and testing workflows for multi-platform agent distribution using CI/CD pipelines.
Write clear, maintainable documentation for kernel-level development and contribute to operational excellence across Windows and macOS environments.

Core Competencies

Advanced proficiency with Windows Driver Kit (WDK) for kernel-mode driver development
Deep expertise in Windows Filtering Platform (WFP) for network packet filtering and inspection
Strong knowledge of Win32 API and Windows system programming
Understanding of Windows networking stack architecture and kernel networking components
Experience with Windows security models, code signing, and driver certification processes
Expertise in macOS/BSD networking stack including packet filter frameworks
Proficiency with Network Extension and System Extension frameworks
Understanding of macOS kernel architecture and XNU kernel development
Experience with macOS security frameworks, entitlements, and system integrity protection
Knowledge of macOS distribution and notarization requirements
Advanced proficiency in Rust for system-level agent development and Python for backend integration
Experience with Tauri/React for cross-platform user interface development
Strong understanding of cross-platform build systems and deployment strategies
Deep understanding of computer networking (TCP/IP, HTTP, DNS, routing protocols, firewalls, load balancing, security)
Expertise in modern observability stacks (Prometheus, Grafana, OpenTelemetry, ELK/Loki) for cross-platform monitoring
Performance analysis and troubleshooting using platform-specific tools (Windows Performance Toolkit, macOS Instruments, network analyzers)
Debugging complex kernel-level issues using crash dumps, kernel debugging tools, and system tracing
Experience with version control (Git), CI/CD systems (GitHub Actions, CircleCI), and ticket management (Jira, Azure DevOps)