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Orlando Qiu

PROFILE

Orlando Qiu

Orlando Qiu enhanced developer tooling in the Shopify/theme-tools repository by building advanced language server features and parser improvements for Shopify themes. He implemented cross-file references and document linking for JSON and Liquid schemas, enabling richer navigation and code analysis. Orlando developed an orphaned snippet check to identify unused code, improving maintainability and code quality. He also added Liquid HTML parser support for snippet tags, accurately representing their structure in both CST and AST stages. His work relied on TypeScript, JavaScript, and the Language Server Protocol, demonstrating depth in parser development, static analysis, and test-driven workflows to strengthen long-term theme tooling reliability.

Overall Statistics

Feature vs Bugs

100%Features

Repository Contributions

10Total
Bugs
0
Commits
10
Features
3
Lines of code
873
Activity Months2

Work History

October 2025

2 Commits • 1 Features

Oct 1, 2025

October 2025 performance highlights: Delivered Liquid HTML Parser Snippet Tag Support (Stage 1 CST and Stage 2 AST) in Shopify/theme-tools, enabling accurate representation of snippet tags, their arguments, and content. Updated syntax error tests to include the snippet token, ensuring CI stability and preventing related failures. This work enhances theme tooling reliability for Shopify theme developers and demonstrates proficiency in parser design, tokenization, and test-driven development.

September 2025

8 Commits • 2 Features

Sep 1, 2025

September 2025 (2025-09) monthly summary for Shopify/theme-tools focused on delivering developer tooling enhancements and code health improvements that drive business value and long-term maintainability. Key features delivered include Theme Language Tools Improvements (cross-file references in the language server, document linking enhancements for JSON and Liquid schema, and Liquid parser enhancements) and the Orphaned Snippet Check for Shopify Themes (a new theme check to identify orphaned snippets and prevent unused code). Major fixes included aligning tests and refactors around JSON language service instantiation and updating test cases to match document linking changes. Overall impact: improved developer productivity through richer navigation and references, higher code quality by catching orphaned snippets earlier, and a stronger baseline for future theme tooling. Technologies/skills demonstrated: TypeScript/Language Server Protocol, JSON/Liquid schema parsing and linking, test-driven development and test infra refactoring, and maintainability through shared type definitions (theme-check-common).

Activity

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Quality Metrics

Correctness97.2%
Maintainability92.0%
Architecture92.0%
Performance88.0%
AI Usage20.0%

Skills & Technologies

Programming Languages

JavaScriptOhmTypeScriptYAML

Technical Skills

AST TraversalAbstract Syntax Trees (AST)CI/CDCode AnalysisCode RefactoringCode parsingConcrete Syntax Trees (CST)Full stack developmentGrammar DefinitionJSONJSON ParsingJavaScriptLanguage Server DevelopmentLanguage Server ProtocolLiquid Templating

Repositories Contributed To

1 repo

Overview of all repositories you've contributed to across your timeline

Shopify/theme-tools

Sep 2025 Oct 2025
2 Months active

Languages Used

JavaScriptOhmTypeScriptYAML

Technical Skills

AST TraversalCode AnalysisCode RefactoringGrammar DefinitionJSONJSON Parsing

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