Mobile Developer, Team Leader, Flutter

Hey there! 👋
I'm Andrzej (aka Andrew), a passionate mobile developer with a decade of experience, including 3 years dedicated to mastering Flutter. Crafting clean code and embracing cutting-edge technologies, I strive for excellence in every app I create.

Projects

Available on:

Uber Carshare

Find and rent cars, vans, and utes across Australia, offering flexible pricing, contactless bookings, and the opportunity to share your own car and earn cash.

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Asphaltgold

Easily participate in raffles for the hottest sneakers from top brands.

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Picnic

Connect with like-minded communities, toggle between interest feeds, and share videos, images, links, and text posts on a social media platform.

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Dubsmash

Create lip-sync and dance videos with the world's largest selection of sounds from songs, shows, and movies.

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Ease

Benefits and HR software for managing time off and employee benefits, with approval for manager roles.

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Viking App Poland

Official app for Mobile Vikings mobile network users, allowing mobile plan management, recurring payments, balance checks, and more.

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Howdy Hub

Join communities, discover like-minded members, and receive relevant content to grow your network.

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Ceneo

Shop safely and conveniently from anywhere in the world, with price comparison, Buy Now options, and access to the best deals on millions of products.

Experience

Freelance Mobile Developer @ Toptal

Remote

Jan 2017 - now

Created mobile projects from scratch for various clients.
Released apps for iOS, Android, and Flutter platforms.
Led teams of developers and delegated tasks.
Delivered new features on a timely basis and provided regular updates to clients.
Fixed bugs and resolved issues with clients.
Prepared CI/CD pipelines for iOS, Android, and Flutter platforms.
Delivered MVPs for mobile projects in collaboration with clients.

FlutterAndroidKotliniOSSwiftCI/CDArchitectureTeam Management

Head of Mobile @ Picnic

Palo Alto, California, United States · Remote

Jul 2022 - Apr 2023

managing team of up to 16 Flutter Devs
outlined architecture and working environment for the Picnic app
specified sophisticated and advanced CI/CD pipelines to streamline development process
translating business requirements into actionable technical tasks

FlutterTechnical LeadershipCI/CDArchitectureTeam Management

Mobile Tech Lead & Architect @ Ignite

Las Vegas, Nevada, United States · Remote

Jun 2021 - Jun 2022

technical lead for the entire mobile department
Outlined the architecture and implemented open-source tools for mobile app development based on CosmosSDK blockchains.
Managed a team of two other mobile developers, mentoring and guiding the direction of the technical aspect of the product.
Built a mobile wallet app to manage cryptocurrency assets on the Cosmos Hub blockchain.

FlutterSDKTechnical LeadershipCI/CDArchitectureTeam Management

Mobile Developer (Flutter + Android + iOS) @ Ease

San Francisco, California, United States · Remote

Nov 2018 - Jul 2021

Rebuilt both iOS and Android applications using Flutter within 2 months.
Developed a native Android app from scratch based on the existing iOS version using Kotlin.
Refactored the entire iOS application to incorporate clean architecture paradigms and clean code with Swift.
Introduced instrumented tests for both Android and iOS using Espresso for Android and EarlGrey + XCUITest for iOS.
Integrated Fastlane for an iOS and Android project to help build a working continuous integration solution.
Introduced unit tests for both Android and iOS applications.
Built custom Gradle scripts to allow easier execution for the continuous integration pipeline of the Android app.

AndroidKotliniOSSwiftFlutterCI/CDArchitectureTeam Management

Senior Android Developer (Kotlin) @ Disney Streaming Services

Amsterdam, Netherlands · Remote

Nov 2017 - Dec 2018

Helped build an Android SDK for core functionalities within client apps in an organization, such as authentication, media streaming, and HTTP API communication layer.
Maintained and improved Gradle quality plugins related to unit testing and code coverage.
Improved the architecture of the SDK to improve testability and mocking for client apps.

AndroidSDKKotlin

Senior Android Developer @ Tooploox

Wroclaw, Poland

Jul 2016 - Jul 2017

Planned and implemented Android application architecture from scratch (Clean architecture + MVP + Dependency Injection).

AndroidJavaKotliniOSObjective-CSwiftCI/CDArchitectureTeam Management

Android Developer @ Ceneo

Wroclaw, Poland

Feb 2013 - Mar 2016

Technical management of Android team (3 developers and a tester).
Planned and implemented Android application architecture from scratch (Clean architecture + MVP + Dependency Injection).
Gathered requirements and presented ongoing progress to business stakeholders.
Used technologies/frameworks/libraries such as Android SDK, RxJava, Retrofit, Dagger 2, PMD, JIRA Software, Bitbucket, GIT and SVN, among others.
Conducted code reviews using Pull Requests and employed Scrum methodology for project management.
Worked with various other tools such as Robolectric, espresso, roboguice, Mockito, google play services, facebook sdk, google sdk, maven, gradle, ant, android studio, and eclipse.

AndroidJavaKotliniOSObjective-CSwiftCI/CDArchitectureTeam Management