Stefan M.
Fullstack/Chrome Extensions/AI/Automations/ETL/Scraping
Always interested in new trends in the IT industry, keen on working on challenging projects using cutting-edge solutions. I'm also comfortable with project management, architectural design, requirements gathering and validation. Some of many different technologies I have experience with: *Chrome Extensions (+Firefox/Opera/Edge/Safari) (Plasmo, WXT frameworks) *DOM / API Scrapers and headless browsers (Puppeteer, Nightmare.js, Playwright, PhantomJS, FireCrawl, Apify) *NodeJS + Express *Vue.js / Vuex / Vuetify *React / Next.js *Complex n8n workflows *ChatGPT/Claude/DeepSeek/Gemini integrations *transformers.js *Microsoft Office JavaScript API *Microsoft Outlook Add-ins *REST APIs creation/integration *D3.js, DC.js, Chart.js *InboxSDK, gmail.js *TamperMonkey/GreaseMonkey scripting *SQL/MongoDB/Postgres
Earnings and projects
Last 6 months ÷ 6
Last 6 months: $43k
Billed in all: $459,978$460k
$8.6k in the last 6 months
Across 6 contracts
Across 123 contracts
Earnings, last 30 days
Skill rankings: Top 0.72% in CSS
Top 1% in 2 of 12 skills, ranked by MRR among everyone on Upwork with the skill.
- Firefox Plugin Development39 freelancers · 🇷🇸 #1Top 5%🇷🇸#1 of 1
- Browser Extension203 freelancers · 🇷🇸 #2Top 1%🇷🇸#2 of 7
- #8XML717 freelancers · 🇷🇸 #1Top 1%🇷🇸#1 of 9
- #8Google Chrome Extension660 freelancers · 🇷🇸 #3Top 1%🇷🇸#3 of 9
- #13RESTful Architecture795 freelancers · 🇷🇸 #3Top 2%🇷🇸#3 of 11
- #108Vue.js8,267 freelancers · 🇷🇸 #1Top 1%🇷🇸#1 of 85
- #137CSS19,042 freelancers · 🇷🇸 #2Top 0.72%🇷🇸#2 of 322
- #143HTML18,716 freelancers · 🇷🇸 #1Top 0.76%🇷🇸#1 of 297