Open to opportunities

Stefan Matic

@stefanmatic2

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Senior Fullstack Developer specializing in React and TypeScript for high-performance web apps.

Serbia

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What I'm looking for

I seek a role leading frontend or full-stack engineering in a collaborative company, focusing on scalable React/TypeScript systems, performance optimization, mentoring, and building design-driven component libraries.

I am a Senior Fullstack Developer with over 10 years of experience building dynamic, user-friendly web applications, specializing in React and TypeScript. I focus on scalable, high-performance solutions and intuitive user interfaces that deliver measurable business results.

At Scalo I led development of a large-scale e-commerce platform serving over 1M monthly users, migrated 80,000+ lines to TypeScript, and built a 50+ component design system with Storybook, which accelerated delivery and improved consistency. I drove frontend performance optimizations that reduced page load times by 40% and improved Core Web Vitals by 45%.

I mentor junior developers, establish testing and CI/CD practices, and collaborate closely with UX/UI and backend teams to deliver reliable, production-ready software. I seek roles where I can continue to lead front-end innovation, scale systems, and coach engineering teams.

Experience

Work history, roles, and key accomplishments

Senior Full Stack Developer

Scalo

May 2021 - Jan 2025 (3 years 8 months)

Led development of a large-scale e-commerce platform serving 1M+ monthly users and $10M+ annual transactions; migrated 80k+ LOC to TypeScript reducing runtime errors 30% and improved page load times by 40%.

React TypeScript Redux Storybook Performance Optimization Jest Cypress Stripe Auth0

Full Stack Developer

Scalo

Jun 2019 - Apr 2021 (1 year 10 months)

Developed and maintained 15+ React applications across 8 clients with 99.5% uptime; introduced TypeScript to a 50k+ LOC codebase reducing runtime errors 35% and improved data refresh speed 50% via REST/GraphQL integrations.

React Redux TypeScript GraphQL RESTful APIs Responsive Design CI CD Testing

Software Developer

Kultify

Sep 2016 - May 2019 (2 years 8 months)

Built SPAs with React and Redux, implemented testing with Jest/Enzyme achieving ~95% coverage, and improved application responsiveness and frontend-backend integration.

React Redux JavaScript Jest Enzyme CSS3 API Integration

Web Developer

TNation

Sep 2014 - Jul 2016 (1 year 10 months)

Built and launched 5+ responsive websites and 5 web applications using HTML5, CSS3, JavaScript, early React and Node.js; collaborated in code reviews and applied performance and cross-browser optimizations.