Senior Mobile Engineer (React Native)

About Us: Fluent Health is a dynamic healthcare startup revolutionizing how you manage your healthcare and that of your family. The company will provide customers with high-quality, personalized options, credible information through trustworthy content, and absolute privacy. To assist us in our growth journey, we are seeking a highly motivated and experienced Senior React Native Engineer to play a pivotal role in future success. Company Website- Job Description: We are seeking exceptional Senior React Native Engineer to join our fast-paced and innovative health tech team. This is a unique opportunity to lead a fundamental shift in our mobile strategy as we transition to a unified React Native platform. You will be instrumental in building a new, offline-first application from the ground up, working alongside our existing native Android and iOS teams. The role requires a deep understanding of mobile architecture, a passion for solving complex data challenges, and a commitment to creating a secure and seamless user experience. The ideal candidates will be seasoned mobile developers with extensive experience in React Native and a strong portfolio of published applications. You must have a solid understanding of a FHIR backend , leveraging GraphQL and RESTful APIs , and be prepared to tackle the complexities of an offline-first paradigm to store critical patient data securely on-device. This role demands a high degree of technical leadership, architectural vision, and a collaborative mindset to mentor others and drive the project to success. If you are a builder who thrives on technical challenges and wants to create impactful mobile solutions that improve lives, we'd love to have you on board. Responsibilities: Offline-First & Data Architecture: • Design and implement a robust offline-first data layer for the new React Native application. • Architect and build a resilient synchronization engine to handle bidirectional data flow between the device and our FHIR backend, implementing a hybrid push-pull model. • Define and implement an intelligent merge-based conflict resolution strategy to prevent data loss in a high-stakes, disconnected environment. • Manage local data storage, including large binary files (e.g., medical images, documents) on the device's file system, ensuring efficient access and a dual storage approach. React Native Development & Leadership: • Lead the design, development, and maintenance of a high-quality, scalable, and secure React Native application from scratch. • Define and implement scalable component architecture and state management strategy. • Conduct thorough code reviews to ensure high standards of code quality, security, and performance. • Act as a technical mentor for junior engineers, fostering a culture of continuous learning and excellence. • Collaborate closely with our native Android and iOS teams to ensure seamless functionality and knowledge transfer. API Integration & Health Tech Domain: • Integrate a GraphQL API alongside RESTful APIs to deliver efficient and dynamic data handling from our FHIR backend. • Implement FHIR-compliant solutions for seamless interoperability with healthcare systems. • Architect and implement real-time, event-driven features using Pub/Sub patterns and WebSocket principles. Security & Compliance: • Enforce a security-first, privacy-by-design mindset throughout the development lifecycle. • Implement robust on-device security measures, including hardware-backed key management and AES-256 encryption , to protect sensitive Protected Health Information (PHI) and ensure compliance with regulations like HIPAA, GDPR, and DPDP . Innovation & Continuous Improvement: • Leverage AI-assisted coding tools to accelerate development while maintaining a strong sense of critical thinking and code ownership. • Stay up-to-date with the latest trends in React Native, mobile architecture, and health tech to ensure our application remains at the cutting edge. • Proactively address technical debt and enhance the scalability and maintainability of the codebase. Qualifications: • Experience: Minimum 7-9 years of professional experience in mobile application development , with at least 5 years in a senior capacity using React Native . • Programming Languages: Expertise in JavaScript/TypeScript. • Mobile Ecosystem: Deep knowledge of the React Native ecosystem, including component lifecycles, state management libraries (e.g., Redux, Zustand), and navigation. • Offline-First: Proven experience in designing and implementing robust offline-first applications with complex data synchronization and conflict resolution. • API Expertise: Strong understanding of GraphQL and experience integrating GraphQL and RESTful APIs, particularly in a health tech or similar domain. • Data Security: A strong understanding of mobile security best practices, including encryption, secure data storage, and compliance standards (e.g., HIPAA). • CI/CD: Familiarity with continuous integration and deployment pipelines for mobile apps. • Problem-Solving: Exceptional analytical and debugging skills with a proactive, solution-oriented approach. • Leadership: A strong ability to lead projects, mentor junior developers, and drive architectural decisions. • Communication: Excellent verbal and written communication skills for effective collaboration with cross-functional teams. • Ownership: A high degree of ownership and accountability for the quality, security, and performance of the product. • Prior experience in Native Android (Kotlin) or iOS (Swift) development. • Experience in healthtech or another highly regulated industry. • A portfolio of published applications that demonstrate an understanding of complex data and security challenges. • Familiarity with FHIR (Fast Healthcare Interoperability Resources) standards. • Knowledge of specific tools like Firebase, Sentry, or other mobile observability platforms. • Experience with multi-module app structures and large-scale mobile application architecture.