Tianxiang Xiong
Staff Software Engineer at Apple
San Francisco, California, United States
Summary
🤩
Rockstar🎓
Top SchoolTianxiang Xiong is a Staff Software Engineer in San Francisco with 12 years of experience building reliable, data-driven systems across finance, healthcare, and consumer platforms. He blends deep functional-programming expertise in Clojure and ClojureScript with practical distributed-systems experience (Kafka, Avro, Kafka Streams) to deliver ledger, ETL, and metadata services at scale. A longtime Emacs and Lisp enthusiast, he contributes to prominent open-source projects like Helm and CIDER, improving developer tooling and editor integrations. His background in biomedical engineering and early work on CUDA-accelerated ultrasound research gives him a rare mix of applied math and systems engineering instincts. Colleagues rely on him for pragmatic full-stack solutions, robust testing infrastructure, and thoughtful schema evolution strategies. Outside work he explores machine learning and healthcare IT, bringing curiosity-driven experiments back into production-quality designs.
11 years of coding experience
12 years of employment as a software developer
Bachelor of Engineering (B.S.E.) Biomedical Engineering, Bachelor of Engineering (B.S.E.) Biomedical Engineering at Duke University
English, Chinese
Stackoverflow
3,937reputation
285kreached
4answers
72questions
Github Skills (31)
debugging10
debug10
middleware10
clojure-cli10
cider10
testing10
macros10
emacs-lisp10
clojure10
smarty10
emacs10
expansion10
helm10
nrepl10
lisp10
Programming languages (14)
Github contributions (5)
clojure-emacs/cider
Jun 2017 - Mar 2018
The Clojure Interactive Development Environment that Rocks for Emacs
Role in this project:
Back-end Developer
Back-end DeveloperContributions:42 commits, 33 PRs, 3 pushes in 9 months
Contributions summary:Tianxiang primarily contributed to the CIDER (Clojure Interactive Development Environment) project, focusing on improving the Emacs integration. They implemented features such as fontifying Grimoire code blocks and supporting special forms for apropos and Grimoire. The user also updated the project to use new formats for forms-str and arglists-str, and refactored parts of the code related to the spec browser. The user's work demonstrates a strong understanding of Clojure and Emacs Lisp.
rockscideremacsclojurescriptdevelopment-environment
clojure-emacs/cider-nrepl
Oct 2016 - Feb 2018
A collection of nREPL middleware to enhance Clojure editors with common functionality like definition lookup, code completion, etc.
Role in this project:Back-end Developer / Test Automation Engineer
Back-end Developer / Test Automation EngineerContributions:12 commits, 17 PRs, 1 push in 1 year 4 months
Contributions summary:Tianxiang primarily contributed to the `cider-nrepl` project by implementing new features related to code analysis and debugging capabilities within the Clojure environment. Specifically, they added a `macroexpand-step` function for step-by-step macro expansion and improved the apropos middleware to include special forms. Additionally, the user addressed formatting issues related to the presentation of forms and argument lists in the `info` middleware. They also fixed a bug and refactored test code, improving the testing infrastructure.
nreplcidercode-completionnrepl-middlewareenhance
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.