freiberufler Mobile Developer (Flutter, Android, iOS), Firebase Expert auf freelance.de

Mobile Developer (Flutter, Android, iOS), Firebase Expert

offline
  • auf Anfrage
  • 10969 Berlin
  • auf Anfrage
  • de  |  en  |  fr
  • 30.08.2023

Kurzvorstellung

Mobile developer and Firebase specialist with more than 12 years of experience in building clean and robust mobile apps.

Qualifikationen

  • Android
  • Architekturvisualisierung
  • Dart
  • Firebase
  • Flutter
  • iOS
  • Java (allg.)
  • Kotlin
  • Mobile Application Development6 J.
  • Produktmanagement

Projekt‐ & Berufserfahrung

Mobile Consultant + Developer
DriversCheck, Köln
1/2023 – offen (1 Jahr, 11 Monate)
Dienstleistungsbranche
Tätigkeitszeitraum

1/2023 – offen

Tätigkeitsbeschreibung

Consultant + Developer for a native Android and iOS app project for document verification. Leading a knowledge transfer process between a parting long-term mobile/image recognition specialist and a to-be-recruited mobile developer team. Improved a programming interface for apps of partner companies and communication with those partners.
Project duration: > 6 months, ongoing.
Technologies: Native Android and iOS (Java, Objective C, Swift, C++), OpenCV, Tesseract.

Eingesetzte Qualifikationen

Mobile Application Development

Partner For Mobile App Development
Florence-Nightingale- Hospital, Düsseldorf
3/2022 – offen (2 Jahre, 9 Monate)
Gesundheitswesen
Tätigkeitszeitraum

3/2022 – offen

Tätigkeitsbeschreibung

Development of a Flutter mobile app for medicinal personnel detailing treatment techniques and operating procedures, along with a CMS based on Wordpress. The customer’s requirement was to build a simple, cost-effective reference guide app for iOS and Android with an easy to use CMS allowing wysiwyg editing and embedding multimedia content. Developed the app with a partner, set up app store accounts for the client to publish the apps, instructed the client into the CMS.
Project duration: > 1 year, ongoing.
Technologies: Flutter, REST, WordPress, App consists of both “native” Flutter UI as well as WebViews for the CMS content.

Eingesetzte Qualifikationen

Mobile Application Development

Mobile Lead Developer + Consultant
AgForce (Krone Landmaschinen), Berlin, Spelle
9/2021 – offen (3 Jahre, 3 Monate)
Maschinen-, Geräte- und Komponentenbau
Tätigkeitszeitraum

9/2021 – offen

Tätigkeitsbeschreibung

Mobile Lead Developer + Consultant. Driving a major refactoring and further development of an existing Flutter mobile app for agricultural activity tracking. Driving a knowledge transfer process from a parting external mobile developer team and building a new, long-term permanent developer team. Consulting with management about use cases, possibilities and limitations of GPS tracking using smartphone technology.
Project Duration: > 2 years, ongoing.
Technologies: Flutter, Android, iOS, Firebase Realtime Database, Firebase Cloud Functions, Firebase Cloud Messages, REST, Firebase App Distribution, Google Maps, iOS and Android GPS interfaces and background work mechanisms, SQLite, Codemagic.

Eingesetzte Qualifikationen

Mobile Application Development

Mobile Developer, Consultant
VanlifeLocation, Zürich
3/2021 – 8/2022 (1 Jahr, 6 Monate)
Tourismus und Freizeitwirtschaft
Tätigkeitszeitraum

3/2021 – 8/2022

Tätigkeitsbeschreibung

Technical/product advisor for a new two sided rental marketplace for private camping spots. Consulting about technological possibilities and limitations, acquiring partners for the project, extending the mobile app with content from the web marketplace.
Project duration: 1 year.
Technologies: Sharetribe, Heroku, native Android and iOS, Firebase Cloud Firestore, Firebase App Config, Firebase Cloud Messages, Firebase Cloud Functions, REST.

Eingesetzte Qualifikationen

Mobile Application Development, Organisation der Produktentwicklung

Senior Android Developer
Commerzbank / Comdirect Bank, Rostock
9/2020 – 8/2022 (2 Jahre)
Banken
Tätigkeitszeitraum

9/2020 – 8/2022

Tätigkeitsbeschreibung

Senior Android Developer. Development of a new onboarding/legitimation flow using electronic IDs and video identification in the Comdirect banking Android app.
Project Duration: 9 months.
Technologies: Android (native, Kotlin), MVVM, a third-party SDK for eID legitimation.

Eingesetzte Qualifikationen

Mobile Application Development

Mobile Consultant + Developer
Dachzeltnomaden, .
5/2019 – 8/2020 (1 Jahr, 4 Monate)
Tourismus und Freizeitwirtschaft
Tätigkeitszeitraum

5/2019 – 8/2020

Tätigkeitsbeschreibung

Development of a visitor app for the Dachzeltfestival, an annual outdoors/travel festival. Developed the app using Flutter and Firebase, both for Android and iOS.
Project duration: 1.5 years.
Technologies: Flutter, iOS, Android, Firebase Cloud Firestore, Firebase Cloud Messages, Firebase Cloud Functions.

Eingesetzte Qualifikationen

Mobile Application Development

Senior Android Developer
365FarmNet, Berlin
5/2018 – 8/2020 (2 Jahre, 4 Monate)
Dienstleistungsbranche
Tätigkeitszeitraum

5/2018 – 8/2020

Tätigkeitsbeschreibung

Senior Android Developer. Development/maintenance of 365Active, a farm machinery tracking system using bluetooth beacons. Development of the 365Pocket Android app, an offline-first activity tracking app for smaller scale agricultural companies.
Project Duration: > 2 years.
Technologies: Android (native), MVVM, REST, Android GPS, MQTT, Bluetooth, Retrofit, JUnit, RxJava, RxKotlin, Koin.

Eingesetzte Qualifikationen

Mobile Application Development

Ausbildung

Geoinformation
BSc
Beuth Hochschule für Technik
2011
Berlin

Über mich

Mobile developer and Firebase specialist with more than 12 years of experience in building clean and robust mobile apps. Deep knowledge of the Android and Flutter SDKs. Up to date with the relevant third-party tools. Able to focus on the details that matter without losing sight of the big picture. At home in early stage projects. Berliner by choice. Loves to travel. Proud dad.

Weitere Kenntnisse

Languages: Kotlin, Dart, Java, JavaScript, Python, Swift, Objective C and others
Mobile APIs: Android SDK, Flutter, Rx(-Java/-Kotlin/-Dart), Jetpack, Retrofit, Dagger,
Room/SQLite, get_it, BLOC, Provider and many more.

Services: All Firebase Services and their mobile SDKs, Google Maps, Crashlytics
Testing: JUnit, Espresso, Appium, Mockito, PowerMock, MockK, Dart/Flutter
Testing tools.

Tools: Android Studio/IntelliJ IDEA, VSCode, XCode, Codemagic, Jenkins,
Travis, GitLab CI, Git, Jira, Confluence, Notion, Figma, Miro, MS Teams,
Slack.

Other: Familiar with Scrum, Kanban, waterfall, utter chaos and everything in
between.

Famous for my home-made pizza (multiple years of experience in the
pizza business long before I started working as a developer).

Persönliche Daten

Sprache
  • Deutsch (Muttersprache)
  • Englisch (Fließend)
  • Französisch (Grundkenntnisse)
Reisebereitschaft
auf Anfrage
Arbeitserlaubnis
  • Europäische Union
Home-Office
bevorzugt
Profilaufrufe
358
Berufserfahrung
14 Jahre und 10 Monate (seit 01/2010)
Projektleitung
5 Jahre

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