Jacob Halsey
Senior Software Engineer at Oracle
Bristol, England, United Kingdom
Summary
👤
Senior🎓
Top SchoolJacob Halsey is a Senior Software Engineer at Oracle with a decade of experience building cloud infrastructure and API gateway services for Oracle Cloud Infrastructure. He combines strong systems thinking with practical API design, and is passionate about Rust and safe, modern languages—evidenced by notable contributions to the utoipa project that improved compile-time OpenAPI generation and schema flexibility. A first-class Computer Science graduate from the University of Bristol, Jacob moved from iOS app work into backend cloud engineering, bringing a pragmatic full-stack perspective to service reliability and developer ergonomics. Based in Bristol, he blends enterprise-scale production experience with active open-source collaboration, often tackling subtle spec and serialization edge cases that improve interoperability for downstream users.
10 years of coding experience
3 years of employment as a software developer
BTEC Level 3 Diploma, Information Technology, Distinction*, Distinction*, BTEC Level 3 Diploma, Information Technology, Distinction*, Distinction* at Westlands SchoolA Level, Computer Science A*, Maths A*, Further Maths, A, Economics A, Physics (AS) A, A Level, Computer Science A*, Maths A*, Further Maths, A, Economics A, Physics (AS) A at Churston Ferrers Grammar SchoolBachelor of Science - BS, Computer Science, First Class Honours, Bachelor of Science - BS, Computer Science, First Class Honours at University of Bristol
Github Skills (4)
rest-api10
openapi10
rust10
documentation9
Programming languages (14)
Github contributions (5)
juhaku/utoipa
Sep 2022 - Oct 2022
Simple, Fast, Code first and Compile time generated OpenAPI documentation for Rust
Role in this project:
Back-end Developer
Back-end DeveloperContributions:2 reviews, 5 commits, 5 PRs in 20 days
Contributions summary:Jacob made several significant contributions to the `utoipa` project, primarily focused on enhancing the OpenAPI documentation generation capabilities. They implemented features such as allowing status code ranges and default responses, fixing deserialization of content encoding, and enabling the use of response references. Furthermore, they added support for custom schema formats and manually setting fields as nullable, improving the flexibility and expressiveness of the OpenAPI definitions. The user's work involved modifications to core code generation, testing, and documentation aspects.
compile-timerustrest-api-documentationcompilerest
jacob-pro/sunrise-sunset-calculator
Jul 2021 - Jun 2022
A Sunrise/Sunset Calculator written in C, with Rust bindings available.
Contributions:21 commits, 12 PRs, 84 pushes in 11 months
astronomical-algorithmscmakerust-ffirustsunrise
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