React Native Developer

Job Description: SDE – Mobile / Full-Stack Developer with IoT & AI Knowledge

Role: Software Development Engineer – Mobile / Full-Stack

Experience: Minimum 2 years

Work Mode: Work from Office

Employment Type: Full-time

About the Role

We are looking for an SDE with strong React Native mobile development experience, full-stack development knowledge, and a clear background in IoT-based systems.

The candidate should have hands-on experience working with mobile applications that interact with IoT devices, sensors, hardware systems, real-time device data, or cloud-based IoT platforms.

Knowledge of AI-based systems, AI integrations, automation workflows, LLMs, or AI-powered product features will be considered a strong advantage.

The ideal candidate should also have basic team-leading capability, ownership mindset, and the ability to manage technical execution with a small development team.

Key Responsibilities

• Develop and maintain mobile applications using React Native.
• Build scalable, reusable, and production-ready mobile app components.
• Integrate mobile applications with backend APIs, databases, and cloud services.
• Work on IoT-based integrations, including:
• Device-to-app communication
• Sensor data handling
• Real-time device monitoring
• MQTT / WebSocket-based communication
• Hardware-software interaction
• IoT dashboard or control system integration
• Collaborate with hardware, backend, frontend, AI, and product teams.
• Work on AI-enabled features where required, such as:
• AI-based automation
• Data analysis
• AI alerts or recommendations
• LLM/API integrations
• Smart monitoring or decision-support systems
• Lead small development tasks and guide junior developers.
• Review code, debug issues, and improve application performance.
• Participate in architecture planning and technical decision-making.
• Ensure proper documentation of mobile flows, APIs, IoT integrations, and system logic.

Required Skills

• Minimum 2 years of experience in React Native mobile development.
• Strong knowledge of JavaScript / TypeScript.
• Experience in mobile app development for Android and/or iOS.
• Hands-on exposure to IoT systems or IoT-enabled applications.
• Experience working with IoT device data, sensors, MQTT, BLE, Wi-Fi modules, embedded systems, or real-time hardware communication.
• Experience with REST APIs, WebSockets, and real-time data handling.
• Basic full-stack development knowledge using Node.js, Python, FastAPI, Express.js, or similar backend technologies.
• Database knowledge such as MongoDB, PostgreSQL, Firebase, or similar.
• Understanding of Git, debugging, deployment, and development workflows.
• Ability to lead tasks, coordinate with team members, and take ownership of delivery.

AI Knowledge — Strong Priority

Candidates with knowledge or experience in the following will be preferred:

• AI-powered applications
• LLM API integrations
• OpenAI / Gemini / Claude APIs
• AI automation workflows
• AI-based monitoring or analytics
• Computer vision or sensor-data intelligence
• Predictive alerts or recommendation systems
• AI agents or intelligent assistants
• Prompting and AI workflow design

Good to Have

• Experience with AWS IoT, Azure IoT, Google Cloud IoT, Firebase, or similar platforms.
• Experience with MQTT brokers, BLE, embedded hardware, Raspberry Pi, Arduino, ESP32, or similar devices.
• Native Android/iOS development knowledge.
• Experience building dashboards for IoT monitoring or device control.
• Prior experience in AI + IoT projects.
• Previous experience leading a small development team.

Candidate Expectations

• Must be comfortable working from office.
• Should have strong ownership and problem-solving ability.
• Should be able to work across mobile, backend, IoT, and AI-related modules.
• Should communicate clearly with both technical and non-technical teams.
• Should be disciplined with timelines, documentation, and reporting.
• Should be capable of guiding junior developers and coordinating execution.

Cyces Innovation Labs LLP is looking for a skilled Mobile Application Developer - React Native to join our team. In this role, you’ll be responsible for developing high-quality, reusable code and ensure best practices are followed. You will work closely with the product management team to deliver new features and enhancements, translating UI/UX designs into pixel-perfect, and responsive mobile interfaces. You'll also collaborate within an Agile team, and integrate with REST APIs, and stay up to date with new technologies to improve development efficiency.

Responsibilities 

• Produce high quality, re-usable code, and ensure best practices are followed by the team 
• Take ownership of technical architecture, coding, and development standards 
• Create new and enhance existing features and code according to requirements
• Work closely with the product management team to produce accurate estimates and clarification
• Develop UI/UX designs into pixel-perfect, responsive user interfaces.
• Continuously discovering, evaluating, and implementing new technologies to maximize development efficiency. 

Qualifications 

• Bachelor’s degree in Computer Science / Information Technology /Software Engineering, or a related field
• Strong understanding of mobile app architecture and design patterns
• Knowledge of UI/UX implementation for mobile apps
• Understanding with responsive mobile design
• Strong problem-solving and debugging skills
• Excellent collaboration and communication skills
• Ability to manage time effectively in an Agile environment

We are looking for a Mobile App Developer for one of the leading TMT bar manufacturers and exporters in India.

Please find below details for your reference :-

Role - Mobile App Developer

Exp - 3 to 8 years

Job Location - Kolkata

About the Company :-

Our Client is one of the leading TMT bar manufacturer and exporter in India. It is a well known group that achieves a turn over of 3000 Cr per annum. The group is setting a construction & architecture oriented omni channel B2B & B2C platform.

Roles & Responsibilities:

- 3-7 yrs of experience in developing new features and user interfaces from wireframe models.

- Ensuring the best performance and user experience of the application

- Fixing bugs and performance problems

- Writing clean, readable, and testable code

- Cooperating with back-end developers, designers, and the rest of the team to deliver well-architected and high-quality solutions

- Complete knowledge of the Uploading app on google play store and Apple app store

- Through analytical skills to Recommend system solutions by comparing advantages and disadvantages of custom development and purchase alternatives.

Requirements :-

- Extensive knowledge about mobile app development. This includes the whole process, from the first line of code to publishing in the store(s)

- Deep knowledge of Kotlin, Flutter,Android, iOS, etc.

- Proficiency with writing automated tests. depending on the libraries you use to test

- Familiarity with RESTful APIs and mobile libraries for networking

- Experience with profiling and debugging mobile applications

- Strong knowledge of architectural patterns - MVP, MVC, MVVM, and Clean Architecture and the ability to choose the best solution for the app

- Familiarity with Git

- Familiarity with push notifications

- Understanding mobile app design guidelines on each platform and being aware of their differences

- Proficiency in Kotlin/Java/Swift/Flutter/Dart

Responsibilities:

• Design and build advanced hybrid mobile applications using React Native
• Lead the application development effort by being the SPOC
• Build hybrid apps using React Native for Android/iOS
• Publish apps to corresponding App store/Play store
• Implement new technologies to maximize application performance and optimize load time
• Collaborate with the back-end developer to build the RESTful APIs
• Research on emerging technologies and trends
• Participate in the planning and design of future software and technical architectures

Qualifications

• 3+ years of hands on experience in the full life cycle of Hybrid mobile application development including publishing one or more apps to the play store & app store
• Must have developed Hybrid Mobile application using React. Hands on Working experience of React Native is a must.
• Experience developing back-end services preferably with NodeJS.
• Experience in developing apps on native Android/iOS platforms is a plus
• Experience in designing and working with n-tier architectures (UI, Business Logic Layer, Data Access Layer) along with some experience with service-oriented architectures (SOA)
• Strong skills in RESTful web services
• Experience with Agile methodologies would be helpful

Rippling is looking for a Senior Mobile Engineer (React Native) who is motivated to combine the art of design with the art of programming. Responsibilities will include translation of the UI/UX design wireframes to actual code that will produce visual elements of the mobile application. 

You will build and scale multiple areas of our mobile application. To begin with —you will be responsible for building out the new product features in the mobile app and owning the deliverables.

• Develop new user-facing features
• Build reusable code and libraries for future use
• Ensure the technical feasibility of UI designs
• Optimize application for maximum speed and scalability
• Have horizontal leadership - driving initiatives via community sync-ups or work on more "zoomed-out"and more long term projects that will move the needle in the long run.

• 3+ years experience in mobile engineering roles including leadership roles.
• 1+ years of experience in React Native development
• Development expertise in either Android or iOS native platform
• Proficient understanding of JS fundamentals
• Experience working in a fast paced, dynamic environment
• Good interpersonal skills

Designation: Technical Lead - Android (ABL_SS_597)

Position description:

• Responsible for the development and maintenance of applications aimed at a vast number of diverse Android devices. 
• Along with Hands-on development will lead the development of Android applications and their integration with back-end services. 
• Work alongside other engineers and developers working on different layers of the infrastructure.
• Translate designs and wireframes into high-quality code
• Design, build and maintain high performance, reusable, and reliable Kotlin and Swift code
• Would be working on IOS platforms hands on along with Android.
• Ensure the best possible performance, quality, and responsiveness of the application
• Identify and correct bottlenecks and fix bugs
• Help maintain code quality, organization, and automatization.

Primary Responsibilities:

• Would be building features and services in android and ios.

Required Skills:

• 7 – 11 years of work experience of Kotlin, RxKotlin and Java
• Knowledge of different designing patterns, Preferably MVVM.
• Experience in Socket Programming and Android Jetpack Components.
• Strong knowledge of Android SDK, different versions of Android, and how to deal with different screen sizes &
• Understanding of Android Porting and Build process, Android native and System app.
• Familiarity with RESTful APIs to connect Android applications to back-end services GRPC, Retrofit.
• Strong knowledge of Android UI design principles, patterns, and best practices
• Experience with offline storage, threading, and performance tuning
• Knowledge of the open-source Android ecosystem and the libraries available for common tasks
• Familiarity with cloud message APIs and push notifications, Deep Linking
• A knack for benchmarking and optimization
• Nice to have an understanding of Swift, Objective-C and Cocoa Touch
• Nice to have an understanding with iOS frameworks such as Core Data, Core Animation, etc.
• Experience with offline storage, threading, and performance tuning
• Familiarity with Flutter or React Native 

A mobile first Neo-banking start-up, Finin aims to help you manage & spend your money seamlessly.

We are a Bengaluru based young & vibrant team planning to on-board amazing talent, someone like you. Please go through the job description below, and connect with us if you deem we are a good fit in the next step of your career progression.

We value your time & hence have a stringent policy to communicate a decision within 7-10 days.

Your work at Finin:
As our primary android developer , you are expected to

1. Build a light-weight, low latent Android applications with limited or no dependency on third-party modules.
2. Build application logic & develop user facing features in Kotlin.
3. Build reusable components & front-end libraries for future use, as and wherever needed.
4. Translate designs & wireframes into high-quality code.
5. Define front-end architecture, document, estimate scope, & deliver on time.
6. Plan for new technology insertion & trade-offs in development.

Further, as any early stage start-up, we expect you to be comfortable wearing multiple hats, & be a proactive contributor towards building something truly remarkable.

Candidate profile:

1. At least 4 years of professional experience building native projects for Android.
2. Have at least two live projects.
3. Practical knowledge of working with RESTful APIs, & version control tools such as git.
4. Experience creating custom libraries.
5. Proficiency in various software design patterns.
6. Accountable & a proactive communicator.
7. Has worked in agile or iterative environment. Can estimate scope & prioritise.
8. Independent problem solver. Comfortable with ambiguity & fast pace start-up work culture.

Bonus points:

1. If you have previous experience building technology for Finance products.
2. If you have contributed in at least two stages of product development: MVP & Growth.
3. If you are a do-er.

• Strong grasp of computer science fundamentals and excellent problem-solving skills.
• Good understanding of software engineering practices, Data Structures & Algorithms.
• Solid programming skills in Java/Kotlin.
• Good communication skills.
• Strong sense of ownership and accountability.
• Experience in Reactive programming, Asynchronous programming and Unit Testing will be an added advantage.
• 4-7years of experience in product driven organization.