Senior Frontend Engineer — React, TypeScript, AI Platforms
Senior Frontend Engineer
Engineering calm into fast-moving products with system thinking and delightful user experience
Projects with impact & craft.
GEN
Designed and built Vidsheets at GEN — a spreadsheet-style batch video generation system that lets users produce hundreds of personalized videos from a single template. Part of a larger performance overhaul that achieved 86% bundle size reduction and 73% chunk size reduction.
86%
Bundle size reduction
Employment Hero
Engineered and implemented a digital onboarding checklist at Employment Hero that reshaped how new organisations get started. Working closely with product and design, I rebuilt the entire flow — reducing setup time by 50% and accelerating time-to-value for customers.
50%
Setup time reduction
Employment Hero
Proposed and led the Snowflakes initiative at Employment Hero to unify the internal UI library. Audited components, rebuilt patterns, documented standards, and aligned teams on a single UI language — resolving 50+ inconsistencies across the product.
50+
Inconsistencies resolved
Employment Hero
Contributed to Employment Hero's React Native mobile application. Developed reusable design system components including a cross-platform Carousel, and implemented secure authentication flows with 2FA and biometric login (Face ID / Passcode).
iOS + Android
Platforms
Employment Hero
Reworked the testing configuration and CI pipeline at Employment Hero. Reduced test execution time from 4–5 minutes, optimised CircleCI resource usage, and enhanced test reliability — helping the entire team ship faster.
4–5 min
Previous test time
FPT Software
Built a healthcare management system at FPT Software with analytics, A/B testing, and SEO optimisation. Set up GA4 and GTM tracking, applied accessibility standards, and mentored a 4-member team.
4 devs
Team mentored
Designveloper / Trixgo / Favie Tech
Developed full-stack web applications at early-career companies using React, Angular, Node.js, and Nest.js. Designed database schemas, integrated RESTful APIs, and automated deployments with AWS.
React + Angular
Frameworks
What I bring to the table.
Large-scale React SPAs with advanced optimization — code splitting, lazy loading, tree-shaking. Proven 86% bundle size reduction in production.
Component libraries with Radix UI, node-based workflow editors, spreadsheet tools, waveform visualization, and video playback interfaces.
Dynamic form systems with conditional logic, optimistic updates, real-time polling, and caching strategies for high-volume AI pipelines.
Engineering productivity through AI workflows — Claude Code CLI with custom skills, MCP integrations, automated code review, and CI/CD optimization.
5+ years across AI platforms, product teams, and startups.
Sep 2025 – Present
Current
GEN · US - Remote
AI-powered content creation platform for generating videos, images, and media assets at scale — featuring Vidsheets (spreadsheet-based batch video production) and AI agents.
June 2022 – Sep 2025
3+ years
Employment Hero · Ho Chi Minh City, Vietnam
All-in-one HR solution for managing HR, payroll, performance, learning, recognition, and benefits. Led frontend architecture and technical planning for a 4-developer squad.
Nov 2021 – Jun 2022
8 months
FPT Software · Vietnam
Healthcare web application. Implemented analytics, A/B testing, and SEO best practices. Set up GA4 and GTM tracking to monitor user behavior and support product insights.
Sep 2020 – Nov 2021
1 year 2 months
Designveloper / Trixgo / Favie Tech · Vietnam
Developed and maintained full-stack web applications including Car Insurance and Dentist Management Systems using React, Angular, Node.js, and Nest.js.
Building clarity in a world full of complexity.
I'm Hoang Le — a Senior Frontend Engineer from Ho Chi Minh City, Vietnam, specializing in complex React applications, design systems, and AI-powered platforms. I transform complex systems into simple, intuitive experiences. I believe great software is built on clarity: clear thinking, clear structure, and a clear sense of purpose.
Over 5 years, I've worked across AI startups, product teams, and outsourcing companies. Currently at GEN building an AI media generation platform — from Vidsheets (spreadsheet-based batch video production) to workflow editors and Web3 auth. Previously at Employment Hero, I led frontend architecture for a 4-developer squad and drove a 50% reduction in onboarding setup time.
5+
Years Experience
20+
Projects Shipped
Simplicity is the highest form of refinement.
A good system makes other people's work easier.
Great UI is invisible — it feels natural without explaining itself.
Impact matters more than complexity.
Every detail compounds — both the good and the messy ones.
I'm always excited to work on new projects, collaborate with talented teams, or just chat about the latest in web development and design.