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Matt Stvartak

Senior Software Engineer

Senior Software Engineer with 15 years of experience architecting high-performance, user-centric frontend applications. Specialized in React, TypeScript, and scalable UI systems with a strong emphasis on accessible design and engineering standards.

Experience

Senior Software Engineer(Contract)

Synchrony

November 2025 – March 2026
  • Delivering full-stack feature development and frontend engineering for enterprise financial services platform
  • Contributing to scalable, maintainable React and TypeScript codebase serving large-scale consumer-facing applications
  • Collaborating with cross-functional product and engineering teams to define and implement technical solutions
ReactTypeScriptJavaScriptNode.jsREST APIsCI/CD

Senior Software Engineer

GymOwners.com

April 2025 – October 2025

Company-wide restructuring ended full-time role.

  • Increased test coverage from 35% to 85% and improved overall app performance by 20%
  • Built CRM and business management tools used daily by gym owners nationwide
  • Introduced frontend unit testing application-wide using Vitest and React Testing Library
  • Established documentation standards and code quality guidelines for the engineering team
JavaScriptReactReact NativeTypeScriptNode.jsZustandREST APIsCI/CD

Head of Engineering

Journey

October 2024 – April 2025

Fixed-term contract.

  • Architected and developed consumer and content creation partner platforms end-to-end
  • Launched user signups 30 days ahead of schedule, accelerating early adoption and growth
  • Reduced operational maintenance through scalable Next.js architecture with automated CI/CD via Git and Vercel
  • Optimized UI/UX workflows by integrating headless CMS for dynamic content management
ReactNext.jsTypeScriptVercelGoogle CloudPostgreSQLStrapiZustandVertex AI

Senior Software Engineer

General Motors

January 2024 – October 2024
  • Built real-time motorsports analytics tools for NASCAR, IMSA, and WEC racing teams
  • Enhanced image analysis accuracy using React, WebSockets, Canvas, and FabricJS
  • Reduced codebase size 40% through component refactoring, improving modularity and maintainability
  • Developed live GPS race mapping tools for real-time visualization and pit strategy analytics
ReactTypeScriptWebSocketCanvasFabricJSPostgreSQLAzureJotaiRSockets

Senior Front-End Engineer

Banjo Health

April 2023 – November 2023

Company-wide restructuring ended front-end roles.

  • Reduced manual workflows 50% with AI-powered decision tree interface built in React and TypeScript
  • Migrated legacy jQuery and KendoUI monolith to modern React single-page application architecture
  • Implemented HITRUST-compliant security practices for healthcare data handling
ReactTypeScriptCypressJestJavaScriptHTMLCSSGit

Senior Front-End Engineer

Earnest

February 2021 – March 2023
  • Designed and launched a fully WCAG 3.0-compliant design system improving accessibility across all user interfaces
  • Increased frontend performance 17–32% through fetch optimizations and lazy loading techniques
  • Built Storybook component library standardizing UI across multiple applications
  • Introduced TypeScript to improve code consistency and overall developer experience
ReactTypeScriptGraphQLStorybookCypressJestHTMLCSS

Senior Web Developer

Barrett Values Centre

February 2019 – February 2021
  • Reduced page load times 65%+ by migrating from Java-based UI to React and TypeScript
  • Optimized API performance by transitioning from REST to GraphQL, reducing network overhead
  • Built scalable component library ensuring consistent UI across enterprise applications
ReactTypeScriptGraphQLStorybookCypressSASSHTMLCSS

Senior Front-End Engineer

Red Ventures

December 2013 – February 2019
  • Built React-based real-time chat UI used by millions of monthly users, improving customer engagement
  • Managed and mentored a team of 2–5 engineers across multiple business units
  • Created reusable component library reducing redundant code across teams
  • Introduced modern development standards including SASS, Webpack, and HTML5 to improve performance and cross-browser compatibility
ReactJavaScriptTypeScriptSASSHTML5WebpackGit

Technical Skills

Languages

JavaScript, TypeScript, HTML5, CSS3, SASS/SCSS

Frontend

React, Next.js, React Native, Redux, Zustand, Jotai, GraphQL, REST APIs, WebSockets

Tools & Infrastructure

Git, CI/CD, Vercel, Google Cloud Platform, Azure, Node.js, Webpack

Testing & Quality

Jest, Vitest, Cypress, React Testing Library, Storybook, WCAG Compliance, HITRUST

Databases & CMS

PostgreSQL, Airtable, Strapi, Headless CMS

Education

Associate's Degree in Multimedia & Game Design

ITT Technical Institute