Mike Lee
GitHub LinkedIn mikemunkyu.lee@gmail.com
  • Typescript, Javascript, React, Sequelize, Vue, THREE.js, Webpack, Vite, Jest, Cypress, Nx.js
  • Python, FastAPI, Pydantic, Flask, SQLAlchemy, Pytest
  • PostgreSQL, DynamoDB, ElasticSearch, Redis, Embeddings
  • Docker, Terraform, Terragrunt, AWS, GCP
  • Pi.dev, LLM, Jev, ElevenLabs, Twilio
Relay Financial-logo
Relay FinancialSr. Software Engineer I → II
May 2023 - Present(3 years 5 months)

Developing a digital banking platform for small and medium-sized businesses and accounting firms.

  • Led development of an agentic workflow automation framework that enables customers to automate banking workflows through in-app agents. Applied it to help customers automatically set aside sales tax in dedicated reserve accounts.
  • Built a RAG bot for automated customer issue analysis and team escalation, eliminating weekly engineering support rotations and cutting average resolution time from 1–2 days to under 4 hours.
  • Led development of an AI voice agent that calls clients about overdue invoices, helping businesses get paid faster.
  • Built end-to-end invoicing with card and bank transfer payments, reaching US$20M+ in monthly gross payment volume (GPV) within one year of launch.
  • Architected and deployed a webhook delivery system for real-time event broadcasting to third-party services.
  • Integrated ElasticSearch to power advanced transaction filtering and search capabilities, improving data discovery for users.
PartnerStack-logo
PartnerStackSoftware Engineer
May 2021 - May 2023(2 years)

Worked on the company's B2B SaaS for the Partnership ecosystem, with a focus on payment workflows.

  • Developed and maintained subscription fee collection and reward payout features, integrating with Stripe and PayPal.
  • Improved system reliability with load distribution strategies, monitoring tools, and automated E2E tests.
  • Worked on localization features to serve international customers in their preferred language and currency for display.
  • Maintained internal design system and UI component library.
  • Upgraded frontend tooling to Vue 3 and Vite and optimized backend unit testing suite, improving developer productivity.
Mosaic Manufacturing-logo
Mosaic ManufacturingFrontend Developer → Full-stack Developer
August 2018 - May 2021(2 years 9 months)

Worked on the frontend, backend, and the cloud infrastructure for Canvas, a 3D printing workflow platform.

  • Developed React dashboard and Node.js REST API for management of 3D printing devices.
  • Restructured a monolithic service for running 3D model slicing jobs into an asynchronous distributed architecture.
  • Led development of interactive tools for painting 3D models on the web.
  • Developed interfaces for real-time communication with IoT devices.
university of toronto logo

University of Toronto, Canada

Rotman Commerce BCom - Finance and Economics Specialist
Graduated in 2018