LEXA WONG
New York,NY
Summary
Senior Frontend Engineer with 7+ years building production-grade React and TypeScript systems at scale across health-tech and fintech, backed by 10 years in UX/UI design. Specializes in scalable component architecture, design systems, and complex data-heavy UIs. Experienced leading frontend teams, defining architecture and testing standards, and driving full-lifecycle delivery — from technical discovery through performance optimization and accessibility (WCAG 2.1 AA) compliance.
Overview
1
1
Certification
16
16
years of professional experience
Work History
Senior Front End Developer
Gravie
Minneapolis, Minnesota
09.2025 - Current
- Built the foundational frontend stack (React, TypeScript, TanStack Query, Tailwind, shadcn/ui, Zustand) from the ground up for a new multi-portal platform (admin, member, broker), giving engineering teams a consistent, reusable foundation across all three surfaces.
- Led migration of a legacy ClojureScript/Grails codebase to a unified React/TypeScript architecture, replacing fragmented per-portal implementations with a single shared architecture used platform-wide.
- Defined API data contracts and shared patterns for loading, error, and pagination states with backend leads, eliminating inconsistent, one-off handling across the admin, member, and broker portals.
- Designed reusable component abstractions for complex health insurance workflows, powering high-traffic employer and employee dashboards used across Gravie's ICHRA and level-funded product lines.
- Established frontend governance — WCAG accessibility standards, ESLint rules, and code review practices — bringing a previously inconsistent codebase up to a single enforced standard across all portals.
Senior Front End Developer
Take Command
Dallas, Texas
01.2024 - 09.2025
- Led a team of 4 engineers, owning technical direction, code review, and mentorship to scale employer onboarding and reimbursement systems used across Take Command's employer base.
- Championed frontend discovery during sprint planning, surfacing API feasibility and scalability risks early and reducing rework that would otherwise surface mid-sprint.
- Built a domain-driven folder structure and shared hooks library, and enforced ESLint standards org-wide, giving new engineers a consistent, documented pattern to onboard against.
- Partnered with product, design, and backend leads to align roadmap delivery, improving implementation clarity and reducing mid-sprint scope changes.
- Drove adoption of frontend testing and quality practices across the team, reducing the rate of issues reaching production.
Frontend Developer
Take Command
Dallas, Texas
06.2020 - 01.2024
- Identified fragmentation across 9+ pages and architected a shared DataGrid system — reusable filter drawers, persistent query-param state, and CSV export — adopted across the entire product, eliminating duplicate implementations.
- Integrated RESTful APIs (Django and Java) serving 35,000+ active users, owning data contracts, loading/error/empty states, and edge-case coverage end-to-end.
- Built complex form-heavy, real-time-validated flows — ATM-style currency inputs, date pickers, and multi-step financial workflow components.
- Delivered responsive, accessible UIs (WCAG) for core ICHRA features: employer onboarding, plan shopping, and reimbursement workflows.
- Translated early UX and product concepts into scalable React/TypeScript implementations, contributing to technical feasibility scoping.
Frontend Developer & Experience Lead
Havoc Shield
03.2020 - 06.2020
- Built responsive, cross-browser web pages with HTML, CSS, and JavaScript, implementing flexible grid layouts and media queries to support a growing mobile user base.
- Redesigned existing layouts to improve usability and performance, applying UX principles from a design background to identify and fix friction points.
- Translated client and user requirements directly into implementation-ready designs and code, bridging the gap between early concepts and shipped features.
Associated Founder, Head of Design Experience
Hu-manity.co
01.2019 - 01.2020
Lead UI/UX Designer
Cadence
New York, NY
01.2018 - 01.2019
UI/UX Designer
Apogy
New York, NY
01.2014 - 01.2018
UX Designer
SciMedMedia
New York, NY
01.2011 - 01.2013
Education
Bachelor of Science - Economics/Psychology
Baruch College
New York, NY01-2013
Skills
- Reactjs
- TypeScript
- JavaScript
- HTML5/CSS
- Redux/Redux Toolkit
- Zustand
- Fullstory
- LaunchDarkly
- Tailwind CSS
- shadcn/ui
- Radix UI
- Bootstrap
- Component libraries
- RESTful API integration
- User interface design
- Accessibility standards
- Agile methodology
- Software development lifecycle
- User testing
- Responsive design
- Playwright
Certification
- CMS - Certified Scrum Master
- AWS - Software Architecture: Domain-Driven Design
- AWS Developing on AWS Course
Timeline
Senior Front End Developer
Gravie
09.2025 - Current
Senior Front End Developer
Take Command
01.2024 - 09.2025
Frontend Developer
Take Command
06.2020 - 01.2024
Frontend Developer & Experience Lead
Havoc Shield
03.2020 - 06.2020
Associated Founder, Head of Design Experience
Hu-manity.co
01.2019 - 01.2020
Lead UI/UX Designer
Cadence
01.2018 - 01.2019
UI/UX Designer
Apogy
01.2014 - 01.2018
UX Designer
SciMedMedia
01.2011 - 01.2013
Bachelor of Science - Economics/Psychology
Baruch College