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Stefan Borisov
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Available for freelance workPlovdiv, BG ·

Software engineer with an eye for design.

I'm Stefan Borisov, a software engineer based in Plovdiv, Bulgaria. I design and build web and mobile apps that are fast, accessible and simple to use.

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NowFrontend developer with React at Synergy GFSSince Jul 2025 · On-site
StudiedSoftware Technologies and DesignUniversity of Plovdiv · 2021 – 2025
Based inPlovdiv, Bulgaria42.14° N, 24.75° E

Selected work

A selection of recent work across web and mobile.

All projects
ScriptIQ: All your extensions, running in order. The application catalog in a browser window.
Web · Creator

ScriptIQ

A platform for selling and licensing browser extensions: Paddle checkout, a customer dashboard for apps, devices and invoices, and an SDK that lets extensions verify licenses offline.

Auto Convert: Every measurement, converted in place. The popup over a converted weather forecast.
Extension · Creator

Auto Convert

Scriptiq Image Downloader: Every image on a page, at full size. The popup over a shop page.
Extension · Creator

Scriptiq Image Downloader

Bulgarian Calendar: Name days, holidays and school breaks. The website and the Android app.
Web · Creator

Bulgarian Calendar

Fario: Fly fishing in the Central Rhodopes. The club's home page in a browser window.
Web · Creator

Fario Fly Fishing Club

A bilingual website for Fario, a fly fishing club from Smolyan, Bulgaria: a single-file design prototype ported to a static Astro site with an interactive river map.

Daniela Tsvetkova: Oil paintings that breathe between the seen and the felt. The gallery page in a browser window.
Web · Creator

Art Studio

A gallery-style website for a fictional oil painter, rebuilt from a Base44 AI prototype into a React 19 and Vite app with a Sanity CMS, responsive CDN images and SEO.

All projects6 projects2025 – 2026See all

Background

Where I've studied and worked.

Jul 2025 – NowFrontend developer with ReactSynergy GFS · On-siteCurrentMay 2025 – Jun 2025Full stack development with Next.js & Node.jsSynergy GFS · InternshipOct 2023 – Jun 2024Software Application DeveloperDiadraw · Internship2021 – 2025Software Technologies and DesignUniversity of Plovdiv · Bachelor's2016 – 2021Information Technologies, English & MathematicsPPMG · High school

Stack

The tools behind my projects, ordered by how often I reach for them.

CSS6 projects + workGit6 projectsTypeScript5 projects + worknpm6 projectsHTML3 projects + workReact3 projects + workGitHub Actions4 projectsVite4 projectsTailwind CSS3 projects+38More skillsWith levels
Contact

Have a project in mind?

I'm available for freelance work. Tell me about your idea and I'll get back to you as soon as possible.

Write to mestefbborisov@gmail.com