Company Name: CrackaJack Digital Solutions

Job Details: Hiring,Remotely,in,United,States,Remote,Mid,level

Job Url: https://builtin.com/job/software-engineer-mobile-app/8026186

Job Description: Position ResponsibilitiesBuild, test, and ship the first version of the App in React Native (Expo).Write clean, maintainable TypeScript code that’s optimized for performance and reliability.Collaborate closely with product and design to develop features end-to-end—from API design to UI polish.Integrate third-party and internal APIs, health data systems (e.g., HealthKit), and AI-driven experiences using LLMs and on-device intelligence.Establish engineering standards for code quality, testing, and CI/CD in a new mobile stack.Continuously improve app performance, security, and scalability.Basic Qualifications3+ years of experience building and shipping React Native apps (Expo or bare workflow).Fluent in TypeScript, React, and modern React Native tooling (Redux Toolkit, Reanimated, etc.).Strong understanding of API integration, concurrency, and async data flows in mobile environments.Experience collaborating with design and backend teams on complex product surfaces.Demonstrated passion for creating exceptional user experiences — fast, elegant, and data-driven.Preferred SkillsExperience with HealthKit, CoreBluetooth, or wearable integrations.Background in health tech, data visualization, or biometric systems.Exposure to AI/LLM integration (OpenAI, LangChain, on-device inference).Contributions to open-source or notable personal projects.Experience with secure data handling and HIPAA-compliant architectures.