Windows Platform Architect - Remote, USA

Malwarebytes•Remote (United States), MI

2h•$240,000 - $250,000•Remote

About The Position

Malwarebytes is seeking a hands-on senior technical lead to shape the core of its Windows product. The role designs and builds low-level components that run on millions of PCs, ensuring they are safe, stable, fast, and lightweight. It serves as the senior Windows technical lead in the US, collaborating with Windows and Core Technology teams in the US and Europe, as well as Research, Cloud, and Product. This is not a people-manager role. The architect owns core Windows component design, from kernel drivers to user-mode services; improves CPU, memory, and startup performance; diagnoses complex system issues; and leads driver signing and Microsoft certification work. The role also reviews Windows features and APIs, works with Research to bring protection features to the OS level, uses AI tools to improve design, development, and testing, and coaches engineers on Windows internals and design. Success includes measurable memory and CPU improvements, leading at least one major driver or core component change, and becoming the go-to person for Windows platform issues during US hours. Compensation is a base salary of $240,000–$250,000 with a 15% bonus. The position is remote in the USA.

Requirements

10 or more years building software, with deep focus on Windows internals.
Hands-on kernel driver experience, including file system minifilters, kernel callbacks, and the Windows driver model.
Strong C and C++ skills.
Experience with C# and .NET performance, including startup time and memory use.
Skill with performance and debugging tools such as WinDbg, ETW, WPA, and PerfView.
Experience shipping software that runs with high rights on a large number of PCs, where stability is critical.
A track record of solving difficult problems and shipping production software.
Clear written and verbal communication skills and a habit of sharing knowledge.

Nice To Haves

Experience with security products such as antivirus or endpoint protection.
Knowledge of ELAM, Protected Process Light, or other Windows security features.
Experience with driver certification, including HLK, WHQL, or attestation signing.
Experience with cloud-to-endpoint telemetry.

Responsibilities

Own the design of core Windows components, including kernel drivers and user-mode services.
Improve product performance by reducing CPU use, memory use, and startup time.
Diagnose and resolve difficult system issues using crash dumps, traces, and kernel debugging.
Lead driver signing and certification work with Microsoft.
Help resolve urgent issues during US hours, including certificate, signing, or false-positive problems.
Review new Windows features and APIs and determine how to use them.
Work with Research to bring new protection features down to the OS level.
Use AI tools to speed up design, development, and testing.
Coach engineers on Windows internals and good design.
Deliver measurable gains in memory and CPU use across the Windows product.
Lead the design of at least one major driver or core component change.
Serve as the go-to person for Windows platform issues during US hours.