Teaching Assistant - CISC 203 (Discrete Mathematics) at Queen’s University

Mentored 200+ students in Graph Theory and Combinatorics, translating abstract proofs into digestible logical steps to improve technical communication skills. Analyzed recurring failure patterns in submissions to create a “Common Errors” guide, reducing repetitive clarification inquiries by 15%. Conducted root-cause analysis on student logic to identify edge cases in mathematical proofs, ensuring algorithmic correctness across 50+ weekly assessments.

Semantic Code Search Engine at GitHub

Built an AI-powered code search engine using Sentence Transformers to generate 384-dim embeddings, enabling natural language queries like “async HTTP client” to find semantically relevant functions across 5 programming languages. Implemented hybrid search combining vector similarity (Qdrant) with BM25 keyword matching using Reciprocal Rank Fusion, achieving superior relevance over keyword-only search. Developed AST-based code parsing with Tree-sitter to extract functions, classes, and methods with full signatures and docstrings from Python, JavaScript, TypeScript, Go, and Rust codebases.

Travel Debate AI at GitHub

Orchestrated 3 AI agents with parallel API execution using Promise.all, reducing debate response time by 50% while streaming token-by-token via Server-Sent Events (SSE). Architected modular backend with centralized validation layer, shared OpenAI/Redis clients, and React Error Boundaries for graceful failure recovery. Implemented Redis persistence with proper connection pooling and 30-day TTL expiration; achieved sub-50ms trip retrieval for shareable itinerary links.

Repo Interview Prepper at GitHub

Implemented real-time AI streaming via Server-Sent Events (SSE) for mock interview mode, reducing perceived latency by 70% with token-by-token response rendering. Built 53 unit tests with Vitest and React Testing Library; configured GitHub Actions CI/CD pipeline achieving 100% pass rate on lint, test, and build stages. Architected modular codebase with 5 custom hooks, service layer abstraction, and serverless BFF pattern; added rate limiting (20 req/min) to protect API endpoints.