Matěj Volf
Software Engineer II at Apify
Prague, Prague, Czechia
Summary
🤩
Rockstar🎓
Top SchoolMatěj Volf is a Software Engineer II with eight years of hands-on experience in web automation, backend development, and quality assurance, now at Apify in Prague. He contributed to the popular Crawlee web-scraping library, improving core reliability, request handling, and documentation, and has experience porting the Rust compiler to a new OS. A Charles University computer science graduate and winner of the Czech Cybersecurity Competition 2025, he blends practical engineering with security-minded problem solving. Comfortable across the stack, he excels at building resilient crawlers and automations for data extraction and AI/LLM workflows while maintaining a strong emphasis on testing and maintainability.
8 years of coding experience
3 years of employment as a software developer
Bachelor's degree, Computer Science, Bachelor's degree, Computer Science at Charles University
Czech, English
Stackoverflow
1,393reputation
118kreached
38answers
12questions
fastapi
top-5%
python-asyncio
top-5%
Github Skills (29)
javascript10
testing10
typescript10
webscraping10
typescript-types10
nodejs10
typescripts10
web-crawler9
webscraper9
puppeteer9
debug9
fastapi9
debugging9
crawling9
python-asyncio9
Programming languages (21)
Github contributions (5)
apify/crawlee
Jun 2022 - Jan 2023
Crawlee—A web scraping and browser automation library for Node.js to build reliable crawlers. In JavaScript and TypeScript. Extract data for AI, LLMs, RAG, or GPTs. Download HTML, PDF, JPG, PNG, and other files from websites. Works with Puppeteer, Playwright, Cheerio, JSDOM, and raw HTTP. Both headful and headless mode. With proxy rotation.
Role in this project:
Back-end Developer & QA Engineer
Back-end Developer & QA EngineerContributions:6 reviews, 4 commits, 9 PRs in 7 months
Contributions summary:Matěj primarily focused on improving the `crawlee` library's core functionality and reliability. They addressed several bugs related to request handling, `userData` management, and content type processing. Additionally, the user implemented new features like the `forefront` option for enqueueing links and improved documentation. A significant portion of their work involved writing and testing code, demonstrating their commitment to quality assurance.
web-crawlercrawlersscrapingcrawlingrpa
mvolfik/Bakalari-homework-tasklist
Mar 2020 - May 2021
Contributions:26 commits, 1 PR, 21 pushes in 1 year 2 months
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.