j
johanswart_

Johan S

@johanswart_

Frontend Developer

South Africa
English, Afrikaans
About me
Hello! I’m a Junior Frontend Developer specializing in React and TypeScript. I build clean, responsive, and maintainable user interfaces with a focus on code quality and testing, using Vitest/Jest for unit tests and GitHub Actions CI for reliable apps. I can help with: • Fixing React or JavaScript bugs • Converting designs into responsive UI • Improving frontend components • Writing or improving unit tests and CI workflows • Optimizing page speed & Core Web Vitals I value professionalism, fast communication, and clean, reliable code... Read more

Skills

j
johanswart_
Johan S
Offline • 

See my services

Bug Fixes
I will fix react, typescript and javascript or frontend bugs fast
From$15 / projectMore details
Customization
I will optimize and improve your frontend performance
From$30 / projectMore details

Work experience

Frontend Developer

Freelance Projects • Self-employed

Mar 2025 - Present • 1 yr 3 mos

Built and deployed modern frontend applications using React and TypeScript. Implemented reusable component architecture, responsive UI systems, and API integration. Integrated automated unit testing (Vitest/Jest) and configured GitHub Actions for continuous integration workflows to ensure code quality and stability.