Computer Science student at Northeastern University. I build full-stack applications, developer tools, and am looking to expand into other projects. I really enjoy the design phase and once programming is underway I enjoy working backend and developing data layers.

VS Code Extension · TypeScript · Open Source · CS 4530

Contributed to an open-source VS Code extension for managing Architectural Decision Records (MADRs). As part of a 5-person intensive, I owned the data layer that every other track depended on.

What I built:

• Designed the TcAnnotation TypeScript interface and all enum types (TcCategory, TcSignal, TcStatus) as the shared schema used by the whole team
• Built parseTcFromYaml() and serializeTcToYaml() — reads and writes TC annotation fields from YAML frontmatter automatically on every parse and save, without touching any other YAML keys
• Implemented mode-aware serialisation: pro-only fields (tc-status, tc-related) are locked behind professional editor mode
• Built validateTcAnnotation() — validates all 6 TC field types with per-field error messages consumed by the UI layer
• Added tc-schema-version stamping for future migration support and real-world compatibility testing against JabRef's 60-file ADR corpus
• Fixed all test fixture incompatibilities introduced by the MADR 2.x → 4.0 grammar migration
• 82 tests passing across 4 test suites (parser, validator, real-repo compatibility, utils)

Stack: TypeScript js-yaml ANTLR4 Jest VS Code Extension API

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Full-Stack Desktop App · Java · JavaFX · CS 3100

Recipe management application built in a 4-person team. Includes recipe storage, ingredient scaling, collection management, and a cook mode with step-by-step instructions.

What I built:

• Live timer — designed and implemented the timer as a first-class instruction field: editable in the recipe editor, persisted in the data model, and can be started, paused, and displayed as a live countdown during cook mode
• Cook mode UI — built the step-through interface with active timer integration, letting users step through recipe instructions one at a time
• Recipe editor — full-stack implementation of the edit flow including GUI form state and persistence layer

Stack: Java JavaFX MVVM Gradle

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• Beginning design of a Colorblind Cook Assistant
• Building out this portfolio

caplan.naf@northeastern.edu  ·  GitHub