Senior Windows Platform Architect: Kernel & Performance Lead

Malwarebytes; Virginia; On-site; USD 240,000 - 250,000; Full time

Benefits offered by this job

Comprehensive Benefits

401k with employer matching

Time Off

Referral Program

Wellness programs

Job summary

Malwarebytes is seeking a Windows Platform Architect to shape the core Windows product. You will design and build low-level components that run on millions of PCs, ensuring safety, stability, speed, and lightness.

This is a senior, hands-on role in the US, collaborating with US and Europe teams across Research, Cloud, and Product. The ideal candidate has 10+ years of software experience focusing on Windows internals, kernel drivers, and high-performance engineering, with strong C/C++ and

Qualifications

• 10+ years building software with deep Windows internals expertise.
• Hands-on kernel driver work: file system minifilters, kernel callbacks, Windows driver model.
• Strong C and C++ skills; experience with C#/.NET performance and startup optimization.

Responsibilities

• Own the design of core Windows components, from kernel drivers to user-mode services.
• Make the product fast and light by reducing CPU and memory usage and startup time.
• Find and fix hard system issues using crash dumps, traces, and kernel debugging.
• Lead driver signing and certification work with Microsoft.
• Provide troubleshooting during US hours for urgent issues.

Skills

Windows internals

C/C++

C#/.NET performance

Kernel driver work

Debugging and performance tools

Excellent communication

Tools

WinDbg

ETW

WPA

PerfView

Job description

Malwarebytes is seeking a Windows Platform Architect to shape the core Windows product. You will design and build low-level components that run on millions of PCs, ensuring safety, stability, speed, and lightness.

This is a senior, hands-on role in the US, collaborating with US and Europe teams across Research, Cloud, and Product. The ideal candidate has 10+ years of software experience focusing on Windows internals, kernel drivers, and high-performance engineering, with strong C/C++ and