Tommy Leung
Software Engineer at Duck Duck Go, Inc.
Cambridge, Massachusetts, United States
Summary
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RockstarTommy Leung is a software engineer with 12 years of experience based in Cambridge, MA, who blends front-end polish with backend rigor. He has contributed to high-profile open-source projects at DuckDuckGo, improving Instant Answers like IPLookup and Flights on the JavaScript front end while implementing a robust CUSIP validation goodie in Perl on the back end. Tommy’s work shows attention to both user-facing details (bug fixes and UI spacing) and domain-specific correctness (financial identifier validation), demonstrating an ability to move between UX improvements and data integrity. An amateur chef off the clock, he brings the same iterative, detail-oriented approach to code—refactoring for clarity and swapping in proven dependencies to improve performance and maintainability.
12 years of coding experience
Github Skills (6)
duckduckgo10
javascript10
perl10
handlebars10
instantsearch10
html9
Programming languages (4)
Github contributions (5)
duckduckgo/zeroclickinfo-spice
Sep 2014 - May 2018
DuckDuckGo Instant Answers based on JavaScript (JSON) APIs
Role in this project:
Front-end Developer
Front-end DeveloperContributions:68 commits, 30 PRs, 28 pushes in 3 years 8 months
Contributions summary:Tommy primarily worked on the `IPLookup` and `Flights` Instant Answers (IAs) within the DuckDuckGo Zero-Click Info Spice repository. Their contributions focused on enhancing the display and functionality of the `IPLookup` IA by addressing bugs related to the display of blacklists and refining the presentation through spacing modifications. They also performed an initial check-in of the `Flights` IA by implementing the initial design and functionality.
apijsjavascriptduckduckgoinstant-answers
duckduckgo/zeroclickinfo-goodies
Sep 2014 - Oct 2014
DuckDuckGo Instant Answers based on Perl & JavaScript
Role in this project:Back-end Developer
Back-end DeveloperContributions:6 commits in 6 days
Contributions summary:Tommy primarily worked on a "CUSIP check" goodie for the DuckDuckGo Instant Answers project. Their contributions involved creating, refining, and optimizing the Perl code to validate CUSIP identifiers. The user refactored the code to improve clarity and performance, including adding HTML output for the results and switching to a dependency on the Business::CUSIP Perl module for validation. Their work demonstrates a focus on implementing financial data validation logic.
javascriptduckduckgoinstant-answersperlinstant
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