J Malloy
Level 3 Technical Specialist at Time Warner Cable
New York, United States
Summary
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Rockstar🎓
Top SchoolJ Malloy is a Level 3 Technical Specialist based in New York with nine years of hands-on experience blending systems support and backend engineering. He brings deep practical expertise in network and infrastructure maintenance from roles supporting thousands of retail locations and enterprise customers, and now applies that operational rigor to software work. An active contributor to the flagship golang/go repository, he has improved the Go compiler—fixing type checking, generics-related issues, escape analysis, and PGO-driven devirtualization—demonstrating low-level language and performance expertise. Comfortable across hardware, virtualization, databases, and developer tooling, he pairs strong customer-facing communication with meticulous troubleshooting and documentation. He’s particularly focused on Go, performance, fuzzing, and module hygiene, and has worked to prevent unsafe conversions using weak pointers—an indicator of attention to both correctness and runtime safety.
10 years of coding experience
1 year of employment as a software developer
Dominican College of BlauveltUlster County Community Collegewallkilll high
Github Skills (6)
compiler10
type-checking10
go10
type-check10
programming-language7
language-design7
Programming languages (10)
Github contributions (5)
golang/go
Jul 2016 - Mar 2026
The Go programming language
Role in this project:
Back-end Developer & Compiler Engineer
Back-end Developer & Compiler EngineerContributions:3 PRs, 970 comments, 73 issues in 9 years 9 months
Contributions summary:J contributed significantly to the Go programming language repository by addressing compiler-related issues. Their work involved fixing bugs and enhancing the compiler's behavior related to type checking, generic types, and escape analysis, as well as PGO-driven devirtualization. The user also made improvements to error handling and documentation related to the `go tool` and its flags, improving the user experience with the tools. Furthermore, the user helped prevent unsafe conversions using weak pointers.
goprogramming-languagegolang
thepudds/fzgen
Dec 2021 - Dec 2022
Auto-gen Go fuzzing wrappers from normal code. Finds buggy call sequences, including data races & deadlocks. Supports rich signature types.
Contributions:4 releases, 1 review, 74 commits in 1 year
data-racefuzzinggotesting
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