{"id":2903953,"url":"https://alion.io/job/noise-sr-ios-sdk-engineer-ble-iot-exp-required","title":"Sr. iOS SDK Engineer - (BLE & iOT Exp required)","company":{"id":7025,"name":"Noise","domain":"gonoise.com","url":"https://alion.io/company/noise","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Freshteam","truth_index":null},"role":"Mobile","role_family":"Mobile","seniority":"senior","employment_type":null,"work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Gurgaon, India"],"countries":["IN"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":null,"experience_years_min":4,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Carthage","optional":false},{"name":"CI/CD","optional":false},{"name":"Clean Architecture","optional":false},{"name":"CocoaPods","optional":false},{"name":"iOS SDK","optional":false},{"name":"MVC","optional":false},{"name":"MVVM","optional":false},{"name":"Objective-C","optional":false},{"name":"Rest API","optional":false},{"name":"Swift","optional":false},{"name":"WebSockets","optional":false},{"name":"Wireshark","optional":false},{"name":"Android SDK","optional":true},{"name":"HealthKit","optional":true}],"status":"live","first_seen_at":"2026-10-20T07:23:25Z","employer_posted_date":"2026-10-20","last_verified_at":"2026-10-20T12:33:06Z","board_verified":true,"closed_at":null,"days_open":0,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":0},"description":"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.\nThe 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.\nResponsibilities:\nDesign, develop, and maintain iOS SDKs for wearable devices.\n\nBuild robust BLE communication layers for device pairing, authentication, synchronization, OTA updates, and real-time data streaming.\n\nDevelop SDK APIs for health, fitness, notifications, device controls, and sensor data access.\n\nDefine SDK architecture, versioning strategy, backward compatibility, and release processes.\n\nCollaborate 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.\n\nOptimize SDK performance, battery consumption, memory usage, and connection reliability.\n\nCreate developer documentation, sample applications, integration guides, and debugging tools.\n\nLead technical discussions and mentor junior engineers.\n\nDrive SDK quality through automated testing, CI/CD pipelines, and code reviews.\n\nRequired Qualifications:\nBachelor's or Master's degree in Computer Science, Electronics, or related field.\n\n3+ years of software development experience with at least 4 years in iOS development.\n\nStrong proficiency in Swift and Objective-C.\n\nExperience building and publishing reusable iOS SDKs/frameworks.\n\nDeep understanding of Bluetooth Low Energy (BLE), CoreBluetooth, and Apple connectivity frameworks.\n\nStrong knowledge of iOS architecture patterns (MVC, MVVM, Clean Architecture).\n\nExperience with dependency management tools such as Swift Package Manager, CocoaPods, or Carthage.\n\nFamiliarity with REST APIs, WebSockets, and cloud-connected applications.\n\nExperience debugging BLE communication using tools such as nRF Connect, Wireshark, or protocol analyzers.\n\nStrong understanding of software design principles, multithreading, and performance optimization.\n\nPreferred Qualifications\nExperience working on smartwatch, smart ring, fitness tracker, hearable, or other wearable products.\n\nExperience implementing OTA firmware update workflows.\n\nFamiliarity with Apple HealthKit, Health Connect integrations, and health data synchronization.\n\nUnderstanding of sensor technologies including PPG, IMU, temperature, and bio-sensing systems.\n\nExperience with BLE security, encryption, bonding, and privacy mechanisms.\n\nKnowledge of CI/CD pipelines, automated testing, and SDK distribution platforms.\n\nExperience working with cross-platform mobile teams and Android SDK 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