Joe Liccini
Member Of Technical Staff at OpenAI
Ponte Vedra Beach, Florida, United States
Summary
👤
Senior🎓
Top SchoolJoe Liccini is a full-stack software engineer with 12 years of experience building and leading high-performance, large-scale web platforms for companies like Microsoft, Stripe, and now OpenAI. He owns systems end-to-end—from frontend UX and API design to backend processing and infrastructure—and has driven mission-critical services processing billions in transaction volume. A recognized advocate for Web Performance, Joe created webperf.tips and has shaped performance best practices adopted across Office 365. He’s led cross-functional engineering teams as a Staff Engineer, mentoring engineers and guiding architectural decisions to deliver measurable business outcomes. An active open-source contributor, he implemented nuanced data structures (e.g., a LinkedDictionary) in TypeScript collections to improve insertion ordering and API ergonomics. Based in Ponte Vedra Beach, he pairs a strong practical grounding in distributed systems with a curiosity for new languages and stacks.
11 years of coding experience
14 years of employment as a software developer
Bachelor's Degree, Computer Science, Bachelor's Degree, Computer Science at University of Florida
Stackoverflow
53reputation
7kreached
0answers
2questions
Github Skills (15)
data-structures10
collections10
algorithms10
typescript10
dictionary10
typescripts10
linked-list10
data-structure10
typescript-types10
scp6
jsch6
angular-aot6
angular6
cygwin6
java6
Programming languages (6)
Github contributions (5)
basarat/typescript-collections
May 2015 - Jun 2015
A generically typed set of collections for use with TypeScript
Role in this project:
Back-end Developer
Back-end DeveloperContributions:5 commits, 2 PRs, 1 comment in 6 days
Contributions summary:Joe primarily focused on implementing the `LinkedDictionary` class and its associated data structures within the TypeScript collections library. They added, modified, and debugged the `LinkedDictionaryPair`, `LinkedDictionary`, and `Dictionary` classes, which involved implementing methods for adding, removing, getting, and setting values. This work included adjusting how the internal table and linked list were implemented for improved insertion ordering. They made necessary updates to the documentation, interface exports and demo files to showcase the functionality of the `LinkedDictionary`.
typescripttypedcollections
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