Sebastian Waloszek
Europe
Summary
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SeniorSebastian Waloszek is a Berlin-based Senior Flutter Engineer with nine years of software experience and over three years focused on building cross-platform mobile apps in Flutter. He has delivered production e-commerce and consumer apps—most recently contributing to Flaconi’s international beauty app—and now works freelance bringing polish, performance, and pragmatic UX to client projects. Trained as a computer engineer (MEng) and experienced across roles from iOS development and QA to business analysis and UI/UX design, he blends product thinking with hands-on implementation. He values high-quality, useful software and continuous improvement, often prototyping fast and exploring new approaches to problem solving. Outside of code he lightens team dynamics with a knack for creating memes, reflecting a collaborative, human-centered approach to engineering.
9 years of coding experience
Github Skills (22)
smsretrieverapi9
dependency-injection8
pincode8
compile-time8
autofill7
sms7
flutter-widget7
flutter7
dart6
input-text6
verification6
otp6
clean-architecture4
android3
sdk3
Programming languages (1)
Github contributions (5)
SebastianWaloszek/next_weather
Sep 2020 - Jan 2021
A Flutter weather app project as result of recruitment assignment. BLoC, Clean Architecture, Unit, Widget, Integration test examples.
Contributions:1 release, 6 commits, 2 PRs in 4 months
flutter
SebastianWaloszek/next_photo
Apr 2022 - Jun 2022
A Flutter photo blog app. BLoC, Clean Architecture, Unit testing
Contributions:5 releases, 43 commits, 4 PRs in 1 month
flutterunit-testing
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