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Marcus Jeong

Mid-level Frontend-Focused Full-Stack Developer specializing in React and TypeScript

Lodestone Product ManagementHumber CollegeToronto, Canada6 Years ExperienceMid Level

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About

Frontend engineer at LodestonePM who led end-to-end delivery of an AI release-notes generator (OpenAI API) and a Kanban-style release board in Remix/React/TypeScript. Demonstrated scalable architecture (bridging tables, upserts), strong QA practices, and measurable performance wins (200+ item loads reduced from 10–20s to a few seconds via caching/pagination), plus UX improvements like simplifying a Jira integration flow.

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Key Strengths

  • End-to-end ownership of frontend features integrating multiple data sources and OpenAI API
  • Architected scalable data relationships using a bridging table to ensure fast validation/lookup
  • Strong quality focus via client/server validation and type consistency checks
  • Built complex Kanban-style workflow with drag-and-drop and server-persisted ordering/ranking
  • Performance optimization on large datasets (200+ rows) using caching and pagination (10–20s down to a few seconds)
  • Shipped major module in a 4-week sprint with integration tests and staged rollout (local/staging/prod)
  • Pragmatic problem-solving integrating export libraries to support PDF/PNG/PPT and modernizing legacy export controls
  • UX-driven collaboration: reduced Jira integration setup from 6–8 interactions to 3–4

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Experience

Full Stack Web DeveloperLodestone Product Management · May 2025 – Present
Assistant ManagerFran’s Restaurant · Jun 2019 – Jan 2024

Education

McMaster Universitybachelor, Philosophy (2019)

Languages

English

Certifications

Web Development - Humber College

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Marcus JeongMid-level Frontend-Focused Full-Stack Developer specializing in React and TypeScript