iOS Developer

Rapsodo is a sports technology company that designs computer vision and machine learning products to help athletes maximize their performance. With offices strategically located in Singapore, Turkey, the USA, Japan, and the UK. Rapsodo is the undisputed leader in sports technology. Current partners include all 30 MLB teams, MLB, USA Baseball, Golf Digest, PGA of America, and over 1000 NCAA athletic departments.

Opened in 2018, our Turkey office operates as the R&D arm of Rapsodo. We have offices located in Bayraklı & Technopark in the Izmir Ege University, recognized by the Ministry of Science, Industry and Technology as one of Turkey’s most successful Technoparks. Our offices incorporate UI/UX, Mobile, Cloud Technologies along with Computer Vision, Deep Learning, Data Science and Unity teams. Rapsodo is rapidly growing, and we are looking for team players who will contribute to deliver state-of-the-art solutions with us. We're looking for an iOS Developer to join us!

Key Responsibilities

• Design, develop, and maintain device discovery, connection management, and device–app data synchronization over BLE and local network
• Improve firmware update, connection troubleshooting, and device state management flows
• Lead development, maintenance, and improvement of the iOS app
• Design and build training sessions, shot data, and video replay modules
• Maintain and evolve native iOS integration with our Unity-based simulation module
• Manage Firebase, AWS, and Mixpanel integrations in a secure and scalable way
• Raise code quality and sustainability with unit tests and CI/CD (Bitbucket Pipelines, SonarCloud)

Qualifications

• BLE (Core Bluetooth): device discovery, connection, characteristic read/write, and connection lifecycle management
• Local network (Wi‑Fi / Local Network) communication and data transfer with devices
• Device–app data synchronization: offline/online scenarios, conflict resolution, reliable data flow
• Connection drops, retry logic, and user-focused error handling

Required

• 4+ years of professional iOS development with Swift
• Solid UI development and screen flow with UIKit (Storyboards / XIB)
• Dependency and module management with CocoaPods
• Data modeling and synchronization with Core Data
• REST/API integration and asynchronous data flows
• Git, code review, and collaborative teamwork
• Familiarity with unit testing and CI/CD
• Fluency in English (both written and spoken)

Nice to Have

• Unity embedded in iOS (lifecycle, native–Unity messaging)
• Kotlin Multiplatform (KMP) interest or experience – shared logic, iOS integration, or cross-platform modules
• Firebase (Auth, Firestore, Storage, Crashlytics, Remote Config)
• AWS (S3, Mobile Client)
• Analytics (Mixpanel or similar)
• In-App Purchase (SwiftyStoreKit or similar)
• Video handling (VLC, AVFoundation) or push notifications
• Hardware/device-focused or sports app projects
• Batch sync or delta sync over BLE or local network