Jarosław Sobiecki is a seasoned Drupal/PHP developer with 14+ years of hands-on experience building, auditing and optimizing web applications, and a co-founder of the self-organized Ratio Web freelancers' cooperative in Wrocław. He combines deep technical craft—performance tuning, migrations, CI automation and custom Drupal distributions—with client-facing consultancy and training. Jarosław has led high-scale projects for international clients and taught internal teams how to ship more reliable solutions, often tackling tricky performance and scalability bottlenecks. Comfortable both as a solo consultant and as part of a cooperative, he brings an entrepreneurial mindset to delivering maintainable, production-grade Drupal systems. An academic background in computer science and mathematics underpins his pragmatic approach to problem solving and tooling.
14 years of coding experience
7 years of employment as a software developer
Licentiate degree, Computer science, Licentiate degree, Computer science at Uniwersytet Wrocławski
Contributions:24 commits, 3 PRs, 20 pushes in 1 year 4 months
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Jarosław Sobiecki - Co-founder And Member Of Freelancers Co-operative