React Native Mobile App Developer

iOS Engineer – AI Platforms & Immersive Experiences

Company: Jio Reality Labs

Location: Navi Mumbai, India

Job Type: Full-Time

Job Summary

Jio Reality Labs is looking for a skilled iOS Engineer to build high-performance, scalable mobile

applications for AI-driven, real-time, and immersive platforms used by millions of users. This role

focuses on creating intuitive, responsive, and visually rich iOS experiences for AI/ML dashboards,

real-time analytics, and AR/VR-enabled applications.

Responsibilities

1. Mobile Application Development

 Build and maintain scalable, high-performance iOS applications using modern development

frameworks and tools.

 Develop intuitive user interfaces for AI/ML workflows, real-time analytics dashboards, and

enterprise tools.

 Translate product requirements and UX designs into clean, maintainable, and reusable code.

2. Real-Time & Data-Driven Interfaces

 Implement real-time UI updates for streaming data, live metrics, and system monitoring

dashboards.

 Work with APIs and WebSockets to render low-latency, data-intensive views.

 Ensure smooth user experience under high-traffic and high-data-volume scenarios.

3. UI/UX & Performance Optimization

 Optimize mobile application performance for speed, responsiveness, and scalability.

 Ensure compatibility across iOS devices, screen sizes, and OS versions.

 Collaborate closely with designers to deliver polished, immersive user experiences.

4. Platform & Architecture

 Design mobile architecture that supports modularity, scalability, and long-term

maintainability.

 Implement state management, reusable components, and modular libraries to support

complex applications.

 Contribute to mobile development standards, best practices, and reusable design systems.

5. Collaboration & Delivery

 Work closely with backend, AI/ML, data engineering, and platform teams to integrate APIs

and workflows.

 Participate in code reviews, sprint planning, and technical design discussions.

 Support CI/CD pipelines and production deployments.

Required Skills & Qualifications

 Strong experience in iOS development using Swift (preferred) or Objective-C.

 Hands-on experience with UIKit and/or SwiftUI, and modern iOS architecture patterns

(MVVM/MVC).

 Solid understanding of mobile UI principles, Auto Layout, and responsive design.

 Experience consuming REST APIs and working with real-time data (WebSockets, streaming).

 Familiarity with performance optimization techniques and debugging tools (Instruments,

Xcode tools).

Preferred Skills

 Experience building dashboards or data-intensive mobile applications.

 Familiarity with data visualization frameworks.

 Exposure to AR/VR or graphics-intensive interfaces (ARKit, RealityKit, Metal).

 Experience with design systems, component libraries, and accessibility standards.

 Understanding of cloud-based deployments and CI/CD workflows.

Building a first-of-its-kind, lifestyle health product for Women in India. We believe that the future of health and fitness is digital, and women will drive the digital fitness revolution in India. Existing digital health and fitness products are highly transactional and we see a huge opportunity to build a truly aspirational product that will inspire and empower millions of women to lead healthier lives. If you are passionate about building a product that blends together technology, content, and community, we would love to talk to you.

Looking for results-oriented Engineers. An ideal candidate for us would be a passionate builder of great products/frameworks and someone who would thrive in a fast-paced environment and enjoy the challenge of complex business contexts that are typically being defined in real-time. In this role, you will be responsible for building world-class technology products and platforms that are at the forefront of the technology revolution in the Indian healthcare ecosystem. You are someone who insists on the highest standards for quality, maintainability, and performance. You will be working in a fast-paced and agile work environment delivering quality solutions that have an immediate business impact.

Responsibilities

• Own the end-to-end development and launch of features on the our App
• Participate in scoping, planning discussions with the designers, PMs, and Leads
• Conceptualize and develop prototypes quickly
• Develop and own launch plans to completion
• Identify opportunities and implement solutions to improve the performance and the architecture of our App
• We will depend on this person to set-up/improve the code quality, tracking, and App architecture and this person needs to have extensively worked on React + Android/iOS

Required Skills

• Min. 3 years of Full-time work experience (College projects, Internships are not a part of this)
• Hands-on experience with React Native
• Deep expertise of either iOS or Android platform and ecosystems
• Deep understanding of your tools: Languages, frameworks, systems.
• Experience with abstracting requirements into frameworks.
• Has worked with the react ecosystem for eg, redux, react-query, react-router etc.
• At least 2 years of experience working in a consumer tech set-up (ecommerce, D2C)
• Work with Rest APIs

Good-to-have Skills

• Experience with video streaming and Real Time Communication technologies.

Job Description:

• Strong working experience in IOS application development is a must. First-hand experience of native mobile apps using Swift must.
• Experience with Swift, RxSwift, Swift UI, and Unit tests.
• Strong system design and architecture skills - specifically for IOS. Curiosity to tinker around, explore new paradigms and strongest for continuous improvement. Strong problem-solving skills.
• Understanding of network connections, Rest API'sand scheduling. Strong knowledge of security standards (e.g. HTTPS) and privacy standards.
• Idea/experience of the unit and instrumentation testing in IOS. Optimizing app performance and memory consumption.
• Leveraging community libraries to efficiently complete development tasks.
• Debugging apps using simulators and related tooling.
• Persisting data for offline-first apps using databases such as Realm.
• Localizing apps to support multiple languages and regions, vernacular libraries and fonts.
• Familiar with Version control systems such as GIT.

Job Description:

• Strong working experience in IOS application development is a must. First-hand experience of native mobile apps using Swift must.
• Experience with Swift, RxSwift, Swift UI, Unit test.
• Strong system design and architecture skills - specifically for IOS. Curiosity to tinker around, explore new paradigms and strongest for continuous improvement. Strong problem-solving skills.
• Understanding of network connections, Rest API'sand scheduling. Strong knowledge about security standards (e.g. HTTPS) and privacy standards.
• Idea/experience of the unit and instrumentation testing in IOS. Optimizing app performance and memory consumption.
• Leveraging community libraries to efficiently complete development tasks.
• Debugging apps using simulators and related tooling.
• Persisting data for offline-first apps using databases such as Realm.
• Localizing apps to support multiple languages and regions, vernacular libraries and fonts.
• Familiar with Version control system such as GIT.

What you need to have:

We are looking for a React Native developer interested in building performant mobile apps on both the iOS and Android platforms.

You will be responsible for architecting and building these applications, as well as coordinating with the teams responsible for other layers of the product infrastructure. Building a product is a highly collaborative effort, and as such, a strong team player with a commitment to perfection is required.

Responsibilities:

1. Build pixel-perfect, buttery smooth UIs across both mobile platforms.
2. Leverage native APIs for deep integrations with both platforms.
3. Diagnose and fix bugs and performance bottlenecks for performance that feels native.
4. Reach out to the open-source community to encourage and help implement mission-critical software fixes—React Native moves fast and often breaks things.
5. Maintain code and write automated tests to ensure the product is of the highest quality.
6. Transition existing React web apps to React Native.

Roles, Responsibilities and Experience:

• Cross-platform mobile app developer who has developed mobile applications and has strong experience with Ionic and Angular 7+.
• Experienced in the development and management of mobile applications, particularly hybrids (Android / iOS)
• Comprehensive experience in mobile application architecture planning
• Well qualified in mobile application design and optimization. The ideal candidate will be able to provide solutions to improve mobile app quality, understand emerging technologies, implement standards and best practices thereby able to enhance the existing stage of development and bring the mobile application, from a product standpoint, 'to the next level'
• Continuously discover, evaluate and implement new technologies as well as frameworks so as to maximize ongoing development efficiencies
• Accurately estimate development timelines and deliver per set schedule
• Solid knowledge of mobile app development practices, along with mobile testing tools and techniques
• Expertise in optimizing the mobile apps' performance
• Experienced in using Agile principles and methodologies
• A deep understanding of the mobile landscape and user behavior patterns is mandatory

Required Skills:

• Experience using web services (HTTP, REST, SOAP) using JSON.
• Knowledge of NodeJS and MongoDB will be an added advantage.
• Good knowledge of object-oriented design patterns and Multi-threading concepts
• Good knowledge of the SQLite database and the Google Play Services like Push Notifications
• Strong mobile UI design (multi-screen resolutions), coding, support and maintenance
• Knowledge of HTML5, JavaScript, and the third-party API (like Facebook, Twitter, etc.) will be added advantage
• Experience with third-party libraries and APIs
• Proficient iOS and Android mobile app experience are a plus

• HTTP APIs 
• SQLite
• Firebase
• Git

• AWS
• MQTT
• IoT
• AWS Cognito 
• Knowledge about Hardware IoT, ESP32, ESP8266, NodeMCU etc.