{"$schema":"https://raw.githubusercontent.com/jsonresume/resume-schema/v1.0.0/schema.json","basics":{"name":"Szymon Klimaszewski","label":"Android tech lead · mobile monetization · AI-agent workflows","email":"szymon@klimaszewski.mobi","url":"https://www.klimaszewski.mobi","summary":"Android tech lead, ex-Dropbox, building mobile apps since 2011. Available now. I wrote my first Android app back in 2011 and never really stopped. Some apps I grew from nothing to millions of users, others already had millions when I showed up and I got to make them better.","location":{"city":"Racibórz","countryCode":"PL","region":"Silesia"},"profiles":[{"network":"LinkedIn","url":"https://www.linkedin.com/in/klimaszewski-mobi/"},{"network":"GitHub","username":"SzyQ","url":"https://github.com/SzyQ"}]},"openTo":{"availability":"Available now","roles":"Android tech lead or senior engineer, on any kind of mobile app","location":"Remote (EU or US timezones) or hybrid near Katowice, Kraków, Wrocław","notes":["Fifteen years in, there isn't much on Android I haven't touched, from paywalls and experiments to media playback, security and full rebrands.","I've worked remotely with US teams for years, at UNUM and Dropbox, so time zones aren't a problem.","I use AI agents every day and can help a team set up workflows that actually save time."]},"work":[{"name":"Dropbox","position":"Android tech lead, monetization","url":"https://play.google.com/store/apps/details?id=com.dropbox.android","startDate":"2023-11","endDate":"2027-01","summary":"Android tech lead at Dropbox","highlights":["Ran the team behind monetization in the Dropbox Android app: subscription flows, paywalls, pricing experiments.","Also built media and preview features with Media3, including Live Photos and folder playback, and made sync actions non-blocking.","Kept revenue safe during service disruptions — worked across PMs, EMs and stakeholders to fix things fast.","Built AI-agent tooling so the team could offload real tasks — reviews, investigations, test runs — to agents."]},{"name":"UNUM","position":"Android developer, de facto team lead","location":"Remote, US startup","url":"https://www.unum.la/","startDate":"2020-06","endDate":"2023-07","summary":"Built UNUM's Android app from zero","highlights":["Started UNUM's Android app from the first commit — a three-person team building a social-media planning tool for creators and brands.","Ran the Android side day to day, fully remote with the US-based company."]},{"name":"Ryanair","position":"Android developer, one of the first three on the team","location":"Wrocław","url":"https://play.google.com/store/apps/details?id=com.ryanair.cheapflights","startDate":"2016-07","endDate":"2020-06","summary":"Grew Ryanair's Android team to 11","highlights":["Joined as one of the first three Android developers; we went on to drive every change in the app and grew the team to 11.","Led many architectural shifts in the main Ryanair Android app, now at 50M+ downloads on Google Play.","Built internal apps from scratch, including a communication app for cabin crew and a mystery-passenger app for rating staff."]},{"name":"BLStream","position":"Senior software engineering specialist","location":"Wrocław","startDate":"2015-08","endDate":"2016-07","summary":"Promoted to senior","highlights":["Picked up the trickiest bugs and the deepest architectural work, and started mentoring juniors."]},{"name":"BLStream","position":"Software engineering specialist","location":"Wrocław","startDate":"2013-02","endDate":"2015-07","summary":"Secure enterprise browser + email","highlights":["Android developer on an all-in-one secure browser with a built-in secure email client, built for a global security company's enterprise and government customers.","A complex codebase with a native JNI communication layer migrated from Palm OS; BLStream's most important project at the time."]},{"name":"Own apps (sole proprietorship, alongside full-time work)","position":"Founder, developer","startDate":"2011-07","url":"https://www.klimaszewski.mobi/#apps","summary":"Health apps on Google Play and the App Store, built and monetized end to end.","highlights":["Eight (2017), Diabetes ++ (Apr 2018), Health+ Weight (Oct 2018) and Blood Pressure: Health+ (Nov 2018).","Blood Pressure (My Heart) went live on Google Play in July 2011. The aim was simple: the best blood pressure tracker on the market.","It has since passed 15 million downloads and is rated 4.3 by more than 56,000 people. Diabetes and Fertility Calendar followed.","Store listings in over 30 languages, with keyword research and copy done by a chain of agents","Blood Pressure (since 2011): 15M downloads","Diabetes (since 2013): 500K+ downloads","Fertility Calendar (since 2013): 100K+ downloads","Health+ Weight (since 2018)","Eight (since 2017)"]},{"name":"Tieto","position":"Junior software engineer","startDate":"2011-06","endDate":"2013-01","summary":"Graduated and joined Tieto","highlights":["Developed software for one of the biggest telecommunications providers."]},{"name":"Wytwórnia Filmów Fabularnych","position":"Computer graphics interface developer","location":"Film studio, Wrocław","startDate":"2010-07","endDate":"2011-03","summary":"Programmed film cameras to fly","highlights":["C++ interface for a motion-control camera system.","Kinematics calculations for the rig.","MEL tools for designing studio camera motion paths."]}],"education":[{"institution":"Wrocław University of Technology","area":"Automatics and robotics, software development","studyType":"MSc","startDate":"2006","endDate":"2011"}],"skills":[{"name":"languages","keywords":["Kotlin","Java","Swift","C++"]},{"name":"mobile","keywords":["Android SDK","Jetpack Compose","Kotlin Multiplatform","SwiftUI"]},{"name":"ai","keywords":["AI-first architecture","AI coding agents","MCP integrations","Skills and slash commands","Multi-agent orchestration","Context engineering"]},{"name":"product","keywords":["AdMob and Play Billing","Tech leadership","Mentoring"]},{"name":"AI-agent workflows","keywords":["A personal system of skills, commands, routines and MCP servers, built the Atomic Habits way: one small fix at a time","Testing agents that use the app on a real Android device, the way a person doing QA would","Agents from different vendors working on the same problem from different angles","Background agents that keep an eye on things and pick up the next step on their own"]}],"projects":[{"name":"Engineering agent workflows","description":"Built agent workflows for everyday engineering work: features from a spec ticket to a reviewed and tested change, analytics checks and crash triage."}],"languages":[{"language":"Polish","fluency":"native"},{"language":"English","fluency":"professional working"},{"language":"German","fluency":"limited working"}],"awards":[{"title":"I enjoy teaching. I've written and run an iOS course for a group of 11 developers at Comarch, and the code is open","url":"https://github.com/SzyQ/iOSBasics-Swift"}],"meta":{"canonical":"https://www.klimaszewski.mobi/resume.json","lastModified":"2026-11-01"}}