Looking for a job

Thomas Lee

@thomaslee5

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Expert Front-end Engineer specializing in modern JavaScript frameworks.

United States

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What I'm looking for

I'm seeking senior frontend roles building data-driven web apps with Svelte/TypeScript, strong UX and mapping; collaborative, design-led teams that value performance, accessibility, and mentorship.

Creative and versatile Frontend Software Engineer with 10+ years of experience delivering interactive, data-driven web applications. Skilled in Svelte (4/5), TypeScript, Ember.js, and modern UI frameworks, with expertise in data visualization, geospatial mapping, and dynamic data tables. Proven track record leading frontend teams, optimizing user experience, and bridging design with backend logic. Experienced across diverse industries including energy, healthcare, accessibility, and SaaS platforms.

Experience

Work history, roles, and key accomplishments

Senior Frontend Developer

E Source

Jun 2020 - Aug 2025 (5 years 2 months)

Delivered features for NYSERDA’s statewide energy data platform. Built scalable visualizations with Svelte, Mapbox.js, and AG Grid; modernized legacy Ember apps; created design systems; integrated secure auth with Keycloak/MSAL; and mentored developers to improve team productivity.

Svelte Sveltkit React ReactJS React Vue React NextJS React Redux Ember.Js Visualization Skills

Contract / Part-time Frontend Engineer

Various Clients

Mar 2019 - Jul 2020 (1 year 4 months)

Delivered features and performance improvements across diverse projects—enhanced search with ElasticSearch at UCSF, built CRM features at Caxiam, and developed a sports video indexing platform with GraphQL/Apollo and real-time messaging at ScoreBreak.

Elasticsearch GraphQL Apollo Client JavaScript TypeScript Agile React

Front-End Engineer

Communication Service for the Deaf (CSD)

Feb 2015 - Feb 2019 (4 years)

Maintained and enhanced Ember.js apps and an internal addon with upgrades, fixes, and performance optimizations. Delivered features like a jobs calendar and interpreter-picker to streamline scheduling. Collaborated with designers and backend teams on scalable, accessible UI/UX, driving improvements within Agile sprints.

Ember.Js Ember QUnit Mirage Jenkins Travis CI JavaScript CI CD

Contract / Part-time Front-End Developer

Various Clients

Feb 2015 - Feb 2016 (1 year)

Enhanced UCSF’s internal Ember.js apps with new features and fixes; revamped Ticketfly’s consumer ticketing app and improved CI/CD with automated test suites; and built reusable Ember-CLI add-ons with a custom Rails API for a scalable music discovery prototype.