Jarek Ankowski is a Lead Android Engineer based in London with 11 years of experience building and modernising mobile platforms for high-scale consumer products. He has driven major migrations to Jetpack Compose, modular architectures, and Navigation3 while adding Android TV support and performance optimisations like RoomDB tuning and Paging3. At Deliveroo he led cross-functional initiatives that cut missed orders by over 50% and sped rider delivery by 30%, established an Android platform team, and delivered scalable testing and build systems that dramatically improved developer experience. He also led company-wide build-time and Kotlin migrations at American Express, cutting build times by 60% and championing idiomatic Kotlin adoption. An active contributor to the Kotlin community, he worked on the JetBrains KotlinConf app enhancing UI/UX and interactive features. His background spans frontend and backend work (Go, Scala, GraphQL), giving him a rare product-minded perspective on end-to-end delivery.
11 years of coding experience
12 years of employment as a software developer
Master of Science Information Technology, Master of Science Information Technology at Wrocław University of Science and Technology
Contributions:19 commits, 5 PRs, 7 branches in 5 days
Contributions summary:Jarek primarily contributed to the UI and functionality of the KotlinConf app, focusing on Android development. Their work involved modifying the UI to include features like ripple effects, clickable address information with map integration, and a collapsible toolbar with a title. Additionally, they added a rating/voting mechanism and addressed issues related to selectable elements, margins, and imports within the Android application code.
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