[Hiring] Windows Platform Architect @Malwarebytes

Role Description

Malwarebytes is looking for a Windows Platform Architect with deep knowledge of Windows internals and performance to shape the core of our Windows product. This is a hands-on senior technical role, not a people manager role. You will design and build the low-level parts of our product that run on millions of PCs, ensuring they are safe, stable, fast, and light. You will be the senior Windows technical lead in the US, working with our Windows and Core Technology teams in the US and Europe, as well as Research, Cloud, and Product.

What You Will Do

• Own the design of core Windows components, from kernel drivers to user mode services
• Make our product fast and light: cut CPU use, memory use, and startup time
• Find and fix hard system issues using crash dumps, traces, and kernel debugging
• Lead driver signing and certification work with Microsoft
• Help resolve urgent issues during US hours, such as certificate, signing, or false positive problems
• Review new Windows features and APIs and decide how we should use them
• Work with Research to bring new protection features down to the OS level
• Use AI tools to speed up how we design, build, and test
• Coach engineers on Windows internals and good design
• Deliver clear gains in memory and CPU use across our Windows product
• Lead the design of at least one major driver or core component change
• Become the go-to person for Windows platform issues during US hours

Qualifications

• 10+ years building software, with deep focus on Windows internals
• Hands-on kernel driver work: 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 matters most
• A track record of solving hard problems and shipping production software
• Clear writing and speaking, and a habit of sharing knowledge with others

Nice to Have

• 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 (HLK, WHQL, attestation signing)
• Experience with cloud to endpoint telemetry

Benefits

• Comprehensive medical, dental, and vision insurance coverage
• Employee Referral Bonus Program
• Wellness programs
• 401k and employer matching for US Employees
• Comprehensive Time Off policy
• An opportunity to do something great for yourself and the world!