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Seyhmus GumusSG

Seyhmus Gumus

Flutter App Developer (iOS | Android) Firebase

€250/day
1 project
Bingen am Rhein, DE
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Seyhmus

Hello! I am an experienced Flutter developer and create powerful, user-friendly apps for iOS, Android, and smartwatches (Wear OS, watchOS). I develop modern designs, intuitive user interfaces, and robust backends tailored to your individual needs. Whether it's a business idea or a personal project – I will accompany you throughout the entire development process. Clear communication and regular feedback are important to me to bring your vision to life. Feel free to contact me to realize your app idea!
  • Turkish

    Native or bilingual

  • English

    Fluent

  • German

    Conversational

Can work on-site
Bingen am Rhein (up to 50km)

Experience

  • Up!Graphix
    Malt logoOn Malt
    App Developer
    September 2025 - September 2025
    Bingen am Rhein, Germany
  • SORO SONS BILGI
    Flutter Developer
    August 2020 - January 2025 (4 years and 5 months)
    İstanbul, Türkiye
    Applications with Flutter, with a special focus on performance and user-friendliness.
    • Implementation of responsive, user-oriented solutions that are individually tailored to the customer's requirements.
    • Continuous training to always stay up-to-date with Flutter and mobile development.
    • Participation in the entire app development lifecycle – from conception through implementation and testing to release.
    Flutter Mobile application Android Developer iOS App Developer
  • AYATEK YAZILIM
    Mobile App Developer
    January 2018 - December 2020 (2 years and 11 months)
    İstanbul, Türkiye
    • Worked as a Mobile Developer at Ayatek, a
    company specializing in R&D projects, for
    over 2 years.
    • Development and maintenance of cross-platform mobile
    applications for Android and iOS using Unity 3D.
    • Contribution to all phases of the app development cycle,
    including design, implementation, testing, and
    deployment.
    • Hands-on experience with mobile UI/UX design, integration
    of third-party SDKs, and performance optimization.

Reviews

5.0

Out of 1 rating

V

Volker

Up!Graphix

Reviewed on 9/10/2025

Very good and reliable work, everything exactly on schedule, very nice and fast communication, which makes collaboration fun - gladly again.

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Education

  • Bachelor of Science in Computer Engineering
    NAMIK KEMAL UNIVERSITY
    2016
    Bachelor in Computer Engineering

Skill set

Categories