Sr. iOS SDK Engineer - (BLE & iOT Exp required)
Noise · Gurugram · onsite · Posted 64d ago
Not disclosed4–6 yrsfulltimeSourced from
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About this role
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:
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.
- 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.
- Strong 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.
- 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.
Sourced from foundit
Skills
nRF ConnectWebSocketcocoapodsMultithreadingapi designperformance optimizationwiresharkSwift Package ManagerObjective CMobile ArchitectureProtocol analyzersCarthageCoreBluetoothSwiftREST API
About Noise
Noise
Consumer Electronics & Appliances
51
employees
Gurugram
IN
₹15.1L PA avg
Avg at Noise
About
Gonoise provides mobile accessories, camera accessories, and smart wearables. Noise is a tech-driven brand that puts the hottest gadgets/ gadget accessories in the hands of young Indian consumers. The Gurgaon based brand was founded by Mr. Amit Khatri & Mr. Gaurav Khatri, in 2014. We started our journey with smartphone cases, later diversifying into Smart Wearables, Action Cameras, Portable Speakers, Bluetooth Headphones and Wireless Chargers. We currently have a lineup of 12 technology accessories, in addition to over 500 smartphone case designs for more than 150 smartphone models. Noise has been listed as a bestselling brand on Amazon and Flipkart, for four years in a row. Kindly enjoy reading our blogs here http://www.gonoise.com/blogs/posts/ and don’t forget to like us on Facebook https://www.facebook.com/gonoise/ , follow us on Instagram https://www.instagram.com/go_noise/ and love our tweet and retweet them on Twitter https://twitter.com/gonoise .
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