EL

Open to opportunities

Ethan Lai

@ethanlai

Full-stack developer specializing in React/Node.js with strong product and systems focus.

What I'm looking for

I’m looking for a hands-on engineering role building user-facing products and reliable backend systems, with collaborative teams, strong testing practices, and opportunities to improve performance and automation.

I am a full-stack developer with experience building scalable web applications and DevOps-aware deployments for enterprise and healthcare clients. I’ve shipped features used by hundreds of advisors and hundreds of thousands of members, and I prioritize test coverage, reliability, and measurable performance improvements.

My background blends software engineering coursework with hands-on internships where I implemented Redux Saga flows, automated billing with Stripe, built JSON-driven form builders, and developed Celery workers to remove API bottlenecks. I lead code reviews, maintain high test coverage, and collaborate closely with product and design teams to create reusable component libraries.

I focus on delivering tangible impact: reducing manual calculation time by 97%, accelerating feature delivery by 20%, improving system response time by 20%, and streamlining onboarding and development time across projects. I seek roles where I can continue building robust systems and user-focused products.

Experience

Work history, roles, and key accomplishments

OM

Current

Full Stack Developer Intern

Current

OMERS

Sep 2025 - Present (9 months)

Developed Retirement Planner and Member Enrollment features enabling 200+ advisors to generate multi-scenario pension projections for 350,000+ members and built a pension calculation system that cut manual calculation time by 97%. Maintained 80%+ test coverage and implemented Redux Saga for real-time validation, accelerating feature delivery by 20% with fewer rollbacks.

React Redux Saga TypeScript PostgreSQL Jest Docker CI CD

ON

Full Stack Developer Intern

OneChart

May 2024 - May 2025 (1 year)

Engineered a JSON-driven React form builder and reusable component library that streamlined client onboarding for 1,500+ users and reduced development time by 100+ hours; integrated Stripe for 1,500+ transactions and deployed Dockerized services to a MedStack cluster serving 10+ healthcare organizations.

React Python Celery Redis Docker Stripe PostgreSQL REST APIs

Education

Degrees, certifications, and relevant coursework

UM

University of Toronto Mississauga

Bachelor of Science, Economics

2021 - 2026

Pursuing a Bachelor of Science in Economics with minors in Computer Science and Mathematics; coursework includes Software Engineering, Data Structures and Algorithms, Software Design, and Systems Programming.

Tech stack

Software and tools used professionally

Postman

PostgreSQL

SQLite

Gmail

Node.js

Next.js

Figma

Redis

Jira

JavaScript

JSON

Datadog

Gemini

redux-saga

React Testing Library

Toolkit

SQL

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