Angelina Jiang · portfolio

work

places i've engineered things.

The Matter Lab, University of Toronto

May 2026 – Present

Toronto, ON

+Built an evaluation harness to benchmark LLM code-generation agents across models and workflows, looking at token usage, latency, and code complexity to compare agent efficiency across MCP-server tool calls
+Scaled agentic pipelines beyond interactive-session limits by orchestrating multi-hour batch compute across HPC nodes with SLURM, enabling long-running autonomous workloads
+Optimized structural execution graphs in Python for the El Agente: Grafico with Prof. Alán Aspuru-Guzik

Department of Computer Science, University of Toronto

May 2026 – Present

Toronto, ON

+Shipped feature enhancements to Courseography, an open-source website in Haskell and React, used by 250+ computer science students per month to visualize course prerequisites, program requirements, and term schedules
+Performed a schema migration in SQLite that refactored internal data access to improve readability
+Built and maintained a quality pipeline with Jest and Coveralls, achieving 59% statement coverage across 500+ automated tests on CircleCI by applying test-driven development (TDD) and expanding unit-test coverage

Clean Architecture Visualizer for Education

May 2026 – Present

Toronto, ON

+Built features for CAVE, a program built in TypeScript, JavaScript and React, that helped 100+ users learn and practice software design principles
+Delivered a matching exercise end-to-end, owning the full cycle from Figma design to implementation and testing
+Reduced wall-clock runtime by 5.1% by adopting DevOps practices and reconfiguring GitHub Actions (CI/CD)

IQBank

May 2026 – Present

Toronto, ON

+Built a full-stack user import feature in React.js and Node.js for an exam-preparation platform used by 300+ users
+Streamlined deployment and local development by containerizing the application with Docker
+Created REST API endpoints to fetch and display users from the PostgreSQL database using Prisma