Piotr Jarzemski
Expert Software Engineer at Adform
Warsaw, Masovian Voivodeship, Poland
Summary
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Rockstar🎓
Top SchoolPiotr Jarzemski is an expert software engineer based in Warsaw with 16 years of experience building scalable backend and data-processing systems. He has deep hands-on expertise across the Hadoop ecosystem, Kafka, Java/Scala services and production-grade ETL pipelines, with a long tenure at Adform and prior senior roles at Allegro and Gadu‑Gadu. Piotr pairs backend and big-data know-how with practical full‑stack experience—examples include improving a popular REST debugging tool by adding tab persistence and UI fixes. He’s comfortable operating across system boundaries, from JVM-based services and Netty servers to analytics dashboards and cache layers, and has repeatedly worked on high-traffic, business-critical platforms. Colleagues would describe him as a pragmatic problem-solver who focuses on reliability and maintainability while iterating quickly.
16 years of coding experience
15 years of employment as a software developer
Bachelor of Science (BS), computer scientist, Bachelor of Science (BS), computer scientist at Polsko-Japonska Wyzsza Szkola Technik Komputerowych, Bytom
English
Stackoverflow
201reputation
16kreached
3answers
0questions
Github Skills (15)
javascript10
firefox-addon10
addon10
web-development9
css8
html8
user-interface7
clojure6
akka6
spray6
akka-http6
emacs6
cider6
scala6
java6
Programming languages (9)
Github contributions (5)
chao/RESTClient
Nov 2010 - Jan 2011
RESTClient, a debugger for RESTful web services.
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:14 commits in 2 months
Contributions summary:Piotr primarily focused on enhancing the functionality of the RESTClient, a tool for debugging RESTful web services, by implementing features related to tab management and data persistence. Their contributions involved storing and restoring tab-specific data, allowing users to preserve their request configurations across browser sessions. This involved modifications to both the core JavaScript logic for the application and its user interface overlay. The work also addressed and fixed bugs related to how tabs were stored and restored upon browser closing and opening.
restfulweb-servicesweb-services-restfulrestclientrest
kazuhiro/cats.typed
Sep 2015 - Jan 2016
Contributions:4 commits, 3 pushes, 1 branch in 4 months
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