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Ibrahima Khaliloulahi GueyeIK

Ibrahima Khaliloulahi Gueye

Senior iOS Developer · Swift / SwiftUI

€650/day
Carrières-sous-Poissy, FR
8-15 years

Average response time: 1 hour

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About Ibrahima Khaliloulahi

Freelance senior iOS developer with 8+ years of experience on high-volume mobile applications and demanding technical environments (media, transport, banking/insurance, mobility).

I am involved in the entire lifecycle of an iOS application: design, architecture, feature development, performance optimization, production stabilization, third-party SDK integration, and CI/CD setup. I adapt to both SwiftUI refactors and existing UIKit/Objective-C apps.

My experience includes working at France Télévisions, SNCF Connect, iFeelSmart, SARETEC, and Nexyad, on apps used by millions of users as well as critical business applications.

My preferred areas:
- Native iOS Development: Swift, SwiftUI, UIKit, Combine, Concurrency, Objective-C
- Architecture: MVVM, Clean Architecture, TCA, Coordinator
- Performance, stability, profiling, and quality (unit tests, code reviews)
- Third-party SDK integration (payment, tracking, advertising, streaming, Bluetooth, sensors)
- CI/CD and automation (GitLab CI, Jenkins, Fastlane, SPM, CocoaPods)

Autonomous and impact-oriented, I quickly step in to unblock critical technical issues and strengthen teams on high-visibility challenges. I integrate easily into Agile teams.

Available immediately for long-term assignments — Île-de-France or full-remote.
  • French

    Native or bilingual

Can work on-site
Carrières-sous-Poissy (up to 50km), Paris (up to 50km)

Experience

  • France télévisions
    iOS Developer
    FILM AND AV
    May 2022 - Today (4 years and 1 month)
    Paris, France
    iOS Developer on the Player project. The Player is the video player at the heart of France Télévisions applications.
    • Development of playback speed settings
    • Update of audio and subtitle settings
    • Development of the Chromecast video tunnel
    • Management of playback resumption on Chromecast
    • Implementation of the Zappette on liveOptions
    • Development of Adpause (Freewheel)
    • Development of the timeshift bar
    • Implementation of Picture In Picture
    • Management of user preference storage
    • Unit tests
    • Bugfix
    • Tracking with Piano
    • Facilitation of stand-ups and retrospectives
    Technologies: Swift, SwiftUI, MVVM, Dependency Injection, Jira, Rest API, Json, XCTest, GitLab CI, Jenkins, Cocoapods, SPM, Charles proxy, Figma
    Methodologies: Scrum/Agile, Daily meetings, Sprint planning, Refinement, Code review
    iOS SwiftUI UIKit Clean Code AVFoundation
  • SNCF Connect
    iOS Developer
    TRANSPORTATION
    November 2021 - April 2022 (6 months)
    Saint-Denis, France
    iOS Developer on SiriusNext, an application for train drivers.
    • Implementation of the route simulation mode
    • Management of Single App Mode in the application
    • Development of driving and planning screens
    • Integration of the SNCFID SDK and implementation of authentication
    • Integration of the Energymiser SDK for driving optimization
    Technologies: SwiftUI, Swift 5, MVVM, Dependency Injection, Jira, Rest API, Json, XCTest, AppCenter, Fastlane
    Methodologies: Scrum/Agile, Daily meetings, Sprint planning, Grooming, Code review
    SwiftUI MVVM Clean Code Combine Code Review
  • SARETEC
    iOS Developer
    BANKING AND INSURANCE
    July 2021 - October 2021 (4 months)
    Créteil, France
    Expertise to assist SARETEC in deploying its application and adding new features.
    • Development of Share and Bluetooth transfer features
    • TestFlight implementation
    • Deployment of the S4 Expertise application on the App Store
    TestFlight AVFoundation CoreBluetooth Swift

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Education

  • Master's degree in Telecommunications and Multimedia Networks
    University of Poitiers
    2016

Skill set

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