You're seeing this page as if you were . The main menu is still yours, though. Exit from immersion
Sebastian SpiesSS

Sebastian Spies

Senior Mobile App Developer | Native iOS | Flutter

€640/day
Düsseldorf, DE
8-15 years

Average response time: 1 hour

About Sebastian

Hi, ich bin Sebastian Spies 👋
- 10+ Jahre Erfahrung in der Entwicklung mobiler Apps
- Entwicklung & Wartung verschiedenster Apps
- Entwicklung von Backends speziell für Apps
- Langjährige Erfahrung im Bereich UX & UI für Apps
  • German

    Native or bilingual

  • English

    Conversational

Can work on-site
Düsseldorf (up to 50km), Köln (up to 10km), Essen (up to 10km)

Experience

  • STIHL
    Flutter Entwickler
    INTERNET OF THINGS (IOT)
    December 2024 - June 2025 (6 months)
    Neu-Entwicklung einer App in einem SCRUM Team mit mehreren Entwicklern.
    Verwendung von Riverpod, Bluetooth Plus, REST-API.
    Flutter Riverpod
  • Techniker Krankenkasse
    iOS Entwickler
    BANKING AND INSURANCE
    September 2024 - April 2025 (7 months)
    Mit-Entwicklung des neuen TK Messengers innerhalb der TK App in einem großen SCRUM-Team mit bis zu 4 Entwicklern.
    iOS Swift (Programming Language)
  • DWIDS
    Flutter Entwickler
    SPORTS
    June 2024 - December 2024 (6 months)
    Alleinige Entwicklung der DWIDSapp inkl. NodeJS Backend.
    Verwendung des BloC-Patterns, REST-API und Firebase.
    Flutter Firebase BLoC

Recommendations

Be the first to recommend Sebastian

Help this freelancer shine by sharing your experience working together.

These freelancer profiles also match your criteria

AgathaA

Agatha Frydrych

Backend Java Software Engineer

4.7

(3)

2

BaptisteB

Baptiste Duhen

Fullstack developer

4.6

(4)

5

AmedA

Amed Hamou

Senior Lead Developer

4

(2)

7

AudreyA

Audrey Champion

Web developer

4.3

(3)

4

Education

  • Bachelor of Science in Computervisualistik & Design
    Hochschule Hamm-Lippstadt
    2015

Certifications

Skill set

Categories