We are looking for a highly skilled Senior iOS SDK Engineer to lead the development of next-generation iOS SDKs powering our wearable ecosystem, including smartwatches, smart rings, and health-focused connected devices.

The ideal candidate will have strong expertise in iOS application and SDK development, Bluetooth Low Energy (BLE) communication , API design, and mobile architecture. You will work closely with firmware, cloud, algorithm, and app teams to build scalable, developer-friendly SDKs that enable seamless integration of wearable devices with iOS applications.

Responsibilities:

- Design, develop, and maintain iOS SDKs for wearable devices.
- Build robust BLE communication layers for device pairing, authentication, synchronization, OTA updates, and real-time data streaming.
- Develop SDK APIs for health, fitness, notifications, device controls, and sensor data access.
- Define SDK architecture, versioning strategy, backward compatibility, and release processes.
- Collaborate with firmware teams to define BLE services, GATT profiles, and communication protocols and to integrate health and wellness features such as heart rate, SpO₂, sleep, activity, and stress monitoring.
- Optimize SDK performance, battery consumption, memory usage, and connection reliability.
- Create developer documentation, sample applications, integration guides, and debugging tools.
- Lead technical discussions and mentor junior engineers.
- Drive SDK quality through automated testing, CI/CD pipelines, and code reviews.

Required Qualifications:





- Bachelor's or Master's degree in Computer Science, Electronics, or related field.
- 3+ years of software development experience with at least 4 years in iOS development.
- Robust proficiency in Swift and Objective-C.
- Experience building and publishing reusable iOS SDKs/frameworks.
- Deep understanding of Bluetooth Low Energy (BLE), CoreBluetooth, and Apple connectivity frameworks.
- Strong knowledge of iOS architecture patterns (MVC, MVVM, Clean Architecture).
- Experience with dependency management tools such as Swift Package Manager, CocoaPods, or Carthage.
- Familiarity with REST APIs, WebSockets, and cloud-connected applications.
- Experience debugging BLE communication using tools such as nRF Connect, Wireshark, or protocol analyzers.
- Strong understanding of software design principles, multithreading, and performance optimization.

Preferred Qualifications

- Experience working on smartwatch, smart ring, fitness tracker, hearable, or other wearable products.
- Experience implementing OTA firmware update workflows.
- Familiarity with Apple HealthKit, Health Connect integrations, and health data synchronization.
- Understanding of sensor technologies including PPG, IMU, temperature, and bio-sensing systems.
- Experience with BLE security, encryption, bonding, and privacy mechanisms.
- Knowledge of CI/CD pipelines, automated testing, and SDK distribution platforms.
- Experience working with cross-platform mobile teams and Android SDK counterparts.

📌 Sr. iOS & SDK Engineer - (BLE Exp required) (Gurugram)
🏢 Noise
📍 Gurugram