Open to opportunities

Matthew Leu

@matthewleu

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Senior Frontend Engineer with expertise in responsive web applications.

United States

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What I'm looking for

I am looking for a role that fosters innovation, collaboration, and growth opportunities in frontend development.

I am a Senior Frontend Engineer with 9 years of experience in building responsive, accessible, and high-performance web applications. My expertise lies in using React, Angular, TypeScript, and modern frontend tooling to deliver user-centric platforms across fintech, AI, and healthcare domains. I have a proven track record of improving application performance and usability, as demonstrated by my work at Dwolla, where I rebuilt the developer console, enhancing load speed by 50% and increasing usability scores.

Throughout my career, I have focused on component-driven architecture and design systems, creating reusable component libraries that standardize UI across applications. My role at Hebbia involved developing React-based interfaces for AI-driven document search, where I collaborated with machine learning teams to visualize complex data. I am passionate about mentoring junior developers and fostering a collaborative environment that emphasizes code quality and accessibility.

Experience

Work history, roles, and key accomplishments

Senior Frontend Engineer

Dwolla

Jan 2022 - Present (4 years 6 months)

Rebuilt the developer console in React and TypeScript, improving load speed by 50% and increasing usability scores in user research studies. Migrated legacy AngularJS interfaces to modern React components with hooks and context API, reducing tech debt and increasing dev velocity.

React TypeScript AngularJS Storybook Jest RTL OpenTelemetry Sentry UI UX Design

Frontend Engineer

Hebbia

Jan 2020 - Present (6 years 6 months)

Developed React-based interfaces for document ingestion, search, and entity annotation, powering real-time interaction with AI-derived insights. Built rich UIs for navigating dense PDF and legal content using virtualization, canvas overlays and drag-to-tag features for compliance review.

React D3.Js Elasticsearch REST APIs UI UX Design AI LLM SaaS PDF Legal Tech

Frontend Developer

DrChrono

Jan 2018 - Present (8 years 6 months)

Designed and implemented Angular modules for appointment management, patient dashboards and telehealth interfaces used by thousands of physicians. Ensured HIPAA compliance in frontend features through encrypted local storage, masked input fields and role-based UI controls.

Angular RxJS jQuery Telehealth SaaS WebSockets UI UX Design Healthcare IT Electronic Health Records (EHR)HIPAA

Frontend Developer

SingleMind

Jan 2016 - Present (10 years 6 months)

Built responsive web interfaces in React and Angular for custom dashboards, customer portals and real-time data visualizations. Delivered UI/UX experiences for B2B platforms including shopping carts, order tracking and product management tools.

React Angular Material Design UI UX Design Responsive Design Data Visualization Web Development Consulting