Jan Barta is a growth-focused engineering leader with 7 years of experience building product-driven teams and scalable user experiences at Apify, where he now leads Growth Engineering. With a master's in Software Engineering and Big Data and a background in ICT project management, he blends data-driven experimentation and strong instrumentation to boost acquisition, activation, retention and monetization. Jan has hands-on full‑stack experience—contributing to the popular Crawlee open-source web-scraping library by improving UI and robust session/proxy handling—and has driven SEO and programmatic growth that added 10k+ targeted landing pages and 100k+ monthly sign-ups. He excels at translating product and marketing needs into engineering solutions, unifying design systems and analytics into a single customer data platform. Based in Prague, he is known for turning UX-first thinking into measurable business outcomes across high-traffic websites and platforms.
7 years of coding experience
7 years of employment as a software developer
Master's degree, Software engineering and big data, Master's degree, Software engineering and big data at Unicorn College, Prague
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:
Full-stack Developer
Contributions:8 reviews, 13 commits, 19 PRs in 9 months
Contributions summary:Jan significantly contributed to the web scraping and browser automation library by implementing features related to the user interface and session management. They added copy buttons to code blocks, enhancing the user experience. Furthermore, the user refactored session pool functionality by implementing tests for cookies and handling the proxy configuration. These changes improved the library's usability and reliability.
Contributions:2 PRs, 11 pushes, 4 branches in 2 months
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