Dawid Misiło, Developer in Warsaw, Poland
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Dawid Misiło

Verified Expert  in Engineering

Mobile UX Developer

Warsaw, Poland

Toptal member since January 29, 2020

Bio

Dawid is a software engineer specializing in cross-platform mobile apps (Flutter and React Native) and web development (React). He has created numerous apps and excels at integrations, code improvements, seamless visuals, and optimizations. He is passionate about design and exciting, innovative concepts leading to outstanding and successful client projects.

Portfolio

Self-employed
Rx, Fastlane, Redux-Saga, iOS, JavaScript, MobX, Android, Firebase, GraphQL...
Making Waves
iOS, Android, Redux, JavaScript, Fastlane, Test-driven Development (TDD), Jest...
Self-employed
Amazon Web Services (AWS), Fastlane, Android, iOS, Continuous Integration (CI)...

Experience

  • React Native - 8 years
  • JavaScript - 8 years
  • React - 8 years
  • TypeScript - 7 years
  • Flutter - 6 years
  • Firebase - 6 years
  • Dart - 3 years
  • Mobile UX - 2 years

Availability

Full-time

Preferred Environment

Xcode, Android Studio, Visual Studio Code (VS Code), IntelliJ IDEA, MacOS

The most amazing...

...app I've designed and developed is Guess It. It is my own project and has more than 100,000 downloads on Android and iOS with great reviews.

Work Experience

Software Engineer / Mobile App Developer

2019 - PRESENT
Self-employed
  • Acted as a mobile lead and senior mobile developer in fintech startups.
  • Worked as senior Flutter developer, building several sports-related web and mobile apps from scratch.
  • Oversaw large refactoring and code improvements of a React Native mobile app with a Firebase and Native section in Java Android.
  • Owned the React web app of a fintech startup as the senior front-end developer.
Technologies: Rx, Fastlane, Redux-Saga, iOS, JavaScript, MobX, Android, Firebase, GraphQL, TypeScript, Redux, React Native, React, Dart, Mobile UX

Mobile App Developer

2018 - 2019
Making Waves
  • Created a React Native app for a law firm, leading the mobile side of the project. The app included communication options, video chat, third-party integrations, payments, and push notifications.
  • Developed Flutter prototypes for mobile applications.
  • Created a React Native app for a fintech startup, starting with estimations, cooperation with business and design teams, and served as a core developer of the app.
Technologies: iOS, Android, Redux, JavaScript, Fastlane, Test-driven Development (TDD), Jest, MobX, Redux-Saga, React, TypeScript, React Native, Dart

Software Engineer

2017 - 2018
Self-employed
  • Developed Language Drops in a team of three developers using React Native.
  • Participated in the development of high-performance desktop apps with C#. I was the lead developer of Super Volley Vision.
  • Collaborated with multiple clients as a front-end developer using the React ecosystem.
Technologies: Amazon Web Services (AWS), Fastlane, Android, iOS, Continuous Integration (CI), Azure, Windows Presentation Foundation (WPF), C#.NET, GraphQL, Redux, React Native, React, JavaScript, TypeScript

Software Engineer

2016 - 2017
Risenbit Software House
  • Developed a full-stack app complete with an admin panel.
  • Created desktop apps to take and edit photos controlled by user gestures.
  • Managed client cooperation and communication. Aided in social media marketing.
Technologies: JavaScript, Azure, Microsoft Kinect, Windows Presentation Foundation (WPF), .NET, C#, CSS, HTML, AngularJS, Entity Framework, ASP.NET Core MVC

Freelancer

2013 - 2016
Self-employed
  • Created landing pages integrated with third-party ad providers for websites with thousands of daily users.
  • Oversaw WordPress administration, copy-writing, optimizations, SEO with manual actions, and link-building software.
  • Developed graphic design, ad banners, and photos for websites.
Technologies: Adobe Photoshop, PHP, WordPress, CSS, HTML, jQuery, JavaScript

Experience

Music Player

A simple local music player for Android developed in React Native and Redux. The project sharpened my React Native skills as I searched for songs and created music notifications.

Guess It - Forbidden Words

https://itsallwidgets.com/guess-it-forbidden-words
A Flutter-based cross-platform app to play a word game which is available on the Play Store and App Store, with almost 100k downloads in total and it is rich with animations and available in several languages with a custom design created using Adobe XD.

BetDuel

https://betduel.com/
A Flutter-based cross-platform app to bet on matches results which is available in the Play Store and App Store. The front end was developed solely by me cooperating with the back-end developer and designer.

Education

2014 - 2018

Bachelor of Engineering Degree in Applied Computer Science

AGH University of Science and Technology - Kraków, Poland

Skills

Libraries/APIs

React, MobX, Redux-Saga, jQuery, Entity Framework

Tools

Firebase Authentication, IntelliJ IDEA, Android Studio, Xcode, Adobe Photoshop, Fastlane

Languages

TypeScript, JavaScript, Dart, HTML, CSS, PHP, GraphQL, C#.NET, C#

Frameworks

React Native, Redux, Flutter, ASP.NET Core MVC, AngularJS, .NET, Windows Presentation Foundation (WPF), Microsoft Kinect, Jest, Rx

Platforms

Android, iOS, MacOS, WordPress, Azure, Amazon Web Services (AWS), Firebase, Visual Studio Code (VS Code)

Paradigms

Continuous Integration (CI), Test-driven Development (TDD)

Other

Mobile App Development, CI/CD Pipelines, Deployment, API Integration, APIs, Mobile UX, Fintech

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