Wesley Wiser
Senior Software Engineer at Microsoft
Chicago, Illinois, United States
Summary
🤩
Rockstar🎓
Top SchoolWesley Wiser is a Senior Software Engineer with 15 years of experience, currently co-leading work on the Rust compiler at Microsoft from his base in Chicago. He brings deep systems and backend expertise, contributing to target specifications, DWARF debug info, and platform-specific build behavior in the flagship rust-lang/rust repository. Wesley also improves compiler observability and performance tooling—adding ETW support and cross-platform fixes to rustc-perf—demonstrating a strong focus on profiling and cross-OS compatibility. His long tenure at Swift Software shows progression from intern to senior engineer, reflecting sustained hands-on delivery and ownership. Notably, he blends low-level compiler engineering with practical automation and testing hygiene, helping ensure reliable builds and debuggability across diverse targets.
14 years of coding experience
13 years of employment as a software developer
Hood College
Stackoverflow
9,681reputation
1.0mreached
142answers
20questions
android
top-5%
generics
top-5%
selenium
top-5%
rust-cargo
top-5%
rust
top-5%
Github Skills (32)
debugging10
debug10
performance-analytics10
performance-monitor10
compiler-development10
windows10
etw10
performance-measurement10
performance-analysis10
performance-tuning10
compiler-optimization10
rust10
performance-monitoring10
trace10
testing9
Programming languages (15)
Github contributions (5)
rust-lang/rust
Feb 2015 - Dec 2022
Empowering everyone to build reliable and efficient software.
Role in this project:
Backend Developer & Automation Engineer
Backend Developer & Automation EngineerContributions:1052 reviews, 410 commits, 256 PRs in 7 years 10 months
Contributions summary:Wesley's contributions focused on enhancing the Rust compiler's codebase, specifically within the realm of target specifications and debug information. They updated the musl target specifications to dynamically link the crt by default and added tests to ensure that this behavior is correct. Furthermore, the user made changes related to dwarf debug information, including setting the debuginfo kind for Windows GNU targets, improving the handling of DWARF versions during LTO, and preventing the use of DWARF version 1.
crategarbage-collectionrustreliablecompiler
rust-lang/rustc-perf
Sep 2019 - Jun 2022
Website for graphing performance of rustc
Role in this project:Performance Engineer
Performance EngineerContributions:11 reviews, 31 commits, 9 PRs in 2 years 9 months
Contributions summary:Wesley primarily focused on improving the performance of the `rustc` compiler. Their contributions include styling and modifying the performance data visualization website, specifically `detailed-query.html`. They fixed tooltip issues, removed unnecessary columns, and added platform-specific code (Windows) to enable the rustc-perf project to compile. Furthermore, they reimplemented and improved the touch function across different platforms to improve compatibility. Additionally, the user implemented ETW (Event Tracing for Windows) event processing and collection for hardware performance counters.
rustperformancegraphrustcgraphing
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