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Cyril GuiguianCG

Cyril Guiguian

Mobile Developer - iOS | Swift | iPhone iPad

€450/day
1 project
Nantes, FR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Cyril

Looking for an iOS Developer  to join your team or develop your iPhone / iPad app?
For 4 years, I have been contributing to the mobile projects of associations, startups, and agencies.

I can support you in the different phases of your project:
● Design and prototypes
● Development of the iPhone / iPad application in Swift.
● Adding features
● Bug fixing
● Compliance for a new iOS version
● Updating or changing libraries
● Distribution of test versions via TestFlight
● Deployment in the App Store
● Maintenance
...

My expertise of over 15 years in graphic design in the industry also allows me to provide UX / UI advice on your mobile projects.
● Mood boards, visual trends, and UI
● UX design
● Navigable Figma prototypes
● Competitive analysis
...

Based in the south of Brittany, I can travel to the Vannes, Nantes, Rennes, or Paris areas if needed.

Do you have a project? Let's discuss it together.
  • French

    Native or bilingual

Can work on-site
Nantes (up to 50km), Vannes (up to 50km), Lorient (up to 10km), Rennes (up to 10km)

Experience

  • Resonantes
    iOS Developer
    CIVIC AND SOCIAL ORGANIZATIONS
    April 2021 - April 2022 (1 year)
    Nantes, France
    1- Modifications of the App-Elles application on iPhone for white-label distribution to serve other causes:

    ● Implementation of new targets
    ● Conditional embedding of classes, modules, files, assets, and functionalities according to the target
    ● Creation of modifiable style definitions
    ● Custom SwiftGen scripts and stencils

    2- Rewriting of the App-Elles Bluetooth module.
    The new iOS version made an unsupported library used in the app incompatible.
    I rewrote the module to enable the use of existing BLE accessories to extend their support:
    ● Use of CoreBluetooth and RxSwift to make actions and events related to Bluetooth accessories reactive.

    3- Development of a universal app primarily for macOS use:
    ● Internal utility app for Résonantes, to diagnose the operation of BLE accessories for App-Elles in batches.
    ● Developed in SwiftUI and available on Macs with Apple chips.
    ● Tests pairing, correct reception of various data, cycle counts, and accessory battery level.

    4- Development for the integration of an iBeacon as a new App-Elles accessory:
    ● Joint use of CoreBluetooth and CoreLocation for the integration of an iBeacon.
    RxSwift Bluetooth Low Energy swiftgen Fastlane iOS Development iBeacon iPhone iOS macOS CoreBluetooth CoreLocation SwiftUI BLE Bluetooth Xcode GitHub SourceTree Trello slack Adobe XD Figma Adobe Illustrator Charles Proxy
  • Sports-Village
    Mobile Developer
    SPORTS
    December 2019 - April 2021 (1 year and 4 months)
    Vannes, France
    Prototyping and development of the Mobile app for sports clubs and their members.

    1- Mobile app prototype
    ● UX and UI design of the Sports-Village mobile app and Adobe XD prototype

    2- Development of iOS MVC in Swift and Android in Kotlin.
    ● Account creation flow with the ability to join an existing club or create a new one on the fly.
    ● Club calendar, event creation by administrators and read-only by members.
    ● Discussions / comments related to each event with the ability to report a message for moderation.
    Adobe XD iOS Development Android Development Kotlin TestFlight Photoshop Figma Adobe Illustrator Adobe Photoshop Retrofit Alamofire SwiftGen SwiftLint iPhone iOS Play Store
  • Smart&Soft (aujourd'hui Groupe Cyllene)
    iOS Developer
    DIGITAL AND IT
    November 2018 - November 2019 (1 year)
    Paris, France
    Following its acquisition, the mobile agency Smart&Soft is now integrated into: Groupe Cyllene.

    Maintenance and development on clients' iOS applications for the agency:

    1- YooMum!
    ● Social network for encounters between future and young mothers
    ● Bug fixing, maintenance
    ● Swift
    ● MVC architecture
    ● Use of Firebase SDK for the online database

    2- Cléyade
    ● Personal assistance agency
    ● Swift, RxSwift
    ● MVVM architecture
    ● Development of graphical components
    ● Integration of push notifications with OneSignal
    ● Integration of deeplinks

    3- Paris history panels (pelles)
    ● Game where you have to collect panels by scanning them in the streets of Paris
    ● Swift
    ● MVVM architecture
    ● Integration of IBM Watson Vision for panel recognition
    ● Anti-cheat with geolocation control and text verification using Azure OCR
    ● Google Maps map with custom theme
    Swift Fastlane moya MVVM swiftgen Firebase Alamofire RxSwift iPhone iPad IBM Watson Microsoft Azure Google Maps Push Notification OneSignal Atlassian JIRA Atlassian Confluence SourceTree slack

Reviews

5.0

Out of 1 rating

N

Nicolas

SAS Ready4Sea

Reviewed on 1/31/2024

I am delighted to share my experience collaborating with Cyril. We recently worked together on the redesign of the Ready4Sea mobile app, and overall, the experience was very positive. Cyril demonstrated an excellent level of skill, delivering quality results that met my expectations. His expertise in mobile development and his graphic creativity greatly contributed to the project. While communication and adherence to deadlines could be improved, Cyril showed consistent commitment to delivering top-notch work. His responsiveness to feedback and willingness to adjust his approach based on my needs were particularly appreciated. I want to highlight the quality of the work accomplished and Cyril's clear desire to ensure client satisfaction. He notably produced very insightful mockups and UI proposals. I intend to continue the mission with Cyril by intensifying our communication, and I am convinced that this promising collaboration will continue to bear fruit. I am confident that his talent and commitment will be a valuable asset for any future mission entrusted to him. Thank you again to Cyril for his professionalism.

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Education

  • Professional License: Application Designer Developer
    Webitech
    2019
    php / symfony / javascript / angular / MySQL / Cassandra / conception

Skill set

Categories