React Native Developer – Bluetooth SDK - Onsite

Please note, this role is not able to offer visa transfer or sponsorship now or in the future*About UsCognizant is one of the world's leading professional services companies, transforming clients' business, operating, and technology models for the digital era. Our unique industry-based, consultative approach helps clients envision, build, and run more innovative and efficient businesses. Headquartered in the U.S., Cognizant, a member of the NASDAQ-100, is ranked 195 on the Fortune 500 and is consistently listed among the most admired companies in the world. Learn how Cognizant helps clients lead with digital at www.cognizant.com.About Cognizant’s IoT PracticeIntelligent, IoT-enabled products will soon result in the proliferation of data and disrupt virtually all industries. To be successful, both large and small companies must leverage IoT capabilities by designing modern products that fundamentally connect people with processes. Within Cognizant IOT, we engineer industry-aligned, IoT-enabled products that merge industry needs with human drivers. Our intelligent products will revolutionize experiences and result in exciting, transformative outcomes. Without human-centered thinking, connected products are just standalone things—but with it, our modern connected products facilitate a unified way of life enjoyed by all.OverviewWe are looking for an experienced React Native Developer to build a high‑impact Bluetooth SDK that will serve as a unified orchestration layer across multiple vendor‑specific protocols. This SDK will abstract complex hardware interactions, streamline communication with native Bluetooth modules, and enable a consistent, reliable experience for all downstream developers and end users.In this role, you will bridge native Android/iOS Bluetooth capabilities into a seamless React Native interface—ensuring performance, stability, and cross‑platform standardization at scale.Key Responsibilities API & SDK OrchestrationDesign a clean, intuitive JavaScript/TypeScript API that abstracts intricate Android/iOS Bluetooth behaviors into a single cross‑platform interface.Create developer‑friendly patterns for device discovery, connection, data handling, and error management. Native Module BridgingBuild and maintain the communication layer between React Native and native Bluetooth modules, including Native Modules or TurboModules.Collaborate closely with Swift and Kotlin engineers to ensure accurate and performant bridging. Core SDK ArchitectureImplement asynchronous event handling, state management, and multivendor logic within the React Native lifecycle.Ensure the SDK is modular, scalable, and optimized for production environments. Cross‑Platform StandardizationDeliver a unified developer experience by ensuring functional parity across Android and iOS.Define coding standards, architectural patterns, and reusable components to support long‑term maintainability.What You BringReact Native ExpertiseStrong, hands‑on experience building high‑performance React Native applications or SDKs.Understanding of React Native architecture, lifecycle, and performance optimization.Native InteroperabilityProven experience building Native Modules or TurboModules.Ability to integrate with Swift (iOS) and Kotlin/Java (Android).JavaScript/TypeScript MasteryDeep experience with TypeScript, especially in designing clean, type‑safe, and extensible APIs.Nice to HaveExposure to Bluetooth / BLE protocols, device pairing workflows, or hardware‑integrated mobile applications.Experience collaborating with hardware engineering, firmware, or low‑level mobile teams.Why This Role MattersYou’re not just building app features—you’re creating a core infrastructure layer that hundreds of developers will rely on. Your work will simplify complex hardware interactions, enhance reliability, and directly support large‑scale operational workflows.Compensation: - $90,000 to 110,000 +/- and this position is also eligible for Cognizant’s discretionary annual incentive program, based on performance and subject to the terms of Cognizant’s applicable plans. Application will be accepted by 4/20/2026Benefits: Cognizant offers the following benefits for this position, subject to applicable eligibility requirements: Medical/Dental/Vision/Life Insurance Paid holidays plus Paid Time Off 401(k) plan and contributions Long-term/Short-term Disability Paid Parental Leave Employee Stock Purchase Plan