React Native Developer Intern | Ahmedabad

Required Skills: Advanced Flutter & Dart Expertise, Scalable Mobile Architecture Design, Performance Optimization & Profiling, OTT & Media App Engineering, Code Quality, Leadership & Cross-Functional Collaboration

Criteria:

• 6+ years of total software development experience with minimum 3+ years in Flutter
• Product-based company experience is mandatory (B2C scale preferred)
• Proven ability to own end-to-end Flutter mobile architecture for high-scale apps
• Strong expertise in Dart, Flutter SDK internals, and advanced state management (Bloc / Riverpod / Provider)
• Hands-on experience with platform channels and native integrations (Android & iOS)
• Deep knowledge of performance optimization: app startup time, FPS, memory leaks, widget rebuilds, rendering pipeline
• Experience with profiling tools (Dart DevTools, Android Profiler, Xcode Instruments)
• Strong skills in offline-first architecture, caching layers, and API integrations
• Ability to optimize video playback, downloads, DRM, and OTT workflows
• Strong command of clean code, SOLID principles, and scalable mobile system design
• Experience reviewing code and mentoring engineers (Senior IC role)

Description

Role Overview

We are looking for an experienced Flutter SDE III who can take complete ownership of architecture, performance optimization, and app scalability for our OTT mobile applications. This is a senior individual contributor role requiring deep technical expertise and the ability to influence design decisions at a product level.

Key Responsibilities

1. Architecture & Design (High-Impact IC Role)

• Own the end-to-end architecture of company’s Flutter mobile applications.

• Design scalable, modular, testable app ecosystems aligned with OTT-specific performance constraints.

• Lead decisions around state management, navigation hierarchy, API structure, offline capabilities, and security.

2. Performance & Device Optimization

• Diagnose and resolve mobile performance bottlenecks, including:

  o App startup time, FPS drops, memory leaks.

  o Heating issues, over-rendering, and expensive widget rebuilds.

  o Battery optimization, efficient network calls, caching strategy.

• Run in-depth profiling using tools like Dart DevTools, Android Profiler, and Xcode Instruments.

3. OTT-Specific Engineering

• Optimize video playback workflows for low-latency streaming.

• Implement efficient background processes for downloads, DRM, content sync, and push notifications.

4. Product & User Experience Ownership

• Collaborate closely with Product, Backend, and Video Engineering teams.

• Convert business/product requirements into high-performance technical solutions.

• Ensure UI/UX consistency across platforms while maintaining performance budgets.

5. Code Quality & Leadership

• Write clean, extensible, and maintainable code with strong adherence to SOLID and reactive programming principles.

• Review code for mid-level and junior engineers; act as a mentor across teams.

• Establish engineering standards, internal frameworks, and reusable components for long-term scalability.

Required Skills & Experience

Technical Must-Haves

• 6+ years of total experience with 3+ years in Flutter for large-scale products.

• Mandatory product-based company background (B2C scale preferred).

• Strong expertise in:

  o Dart, Flutter SDK internals

  o Bloc, Riverpod, Provider, or other state management approaches

  o Custom animations, rendering pipeline, shader-based optimization

  o Platform channels (Android/iOS) and native integrations

  o API integration, caching layers, offline-first architecture

• Strong understanding of mobile system design, scalable architecture, and low-level performance engineering.

Good to Have

• Experience with video streaming apps, OTT platforms, or media-heavy applications.

• Understanding of analytics frameworks (Firebase, Segment, Mixpanel).

• Exposure to CI/CD pipelines, automated testing, and fastlane.

Personality & Mindset

• Product thinking, not just feature-building.

• Ownership-driven with strong ability to take strategic technical decisions.

• Comfortable working in a fast-paced 0→1 and scale-up environment.

Why Join company?

• Work on a high-growth OTT app with millions of users.

• Opportunity to own the core mobile experience end-to-end.

• Build impact-heavy features at scale with a lean, highly skilled engineering team.

Job Title: React Native Mobile Developer ( 4+ years experience) 

Are you passionate about shaping the future of technology and being a part of a dynamic team of developers? Do you thrive in challenging and innovative environments, ready to take on the responsibility of spearheading cutting-edge projects? If so, we have an exciting opportunity for you! 

Job Description: 

We are seeking an experienced React Native Developer with over 4 years of experience to join our dynamic team. The ideal candidate will have a strong background in mobile development, particularly with React Native, and a passion for creating high-quality, scalable applications. You will play a key role in the development and maintenance of our cross-platform mobile applications, ensuring seamless integration with our web solutions and a superior user experience.

Key Responsibilities:

• Mobile Development: Develop, maintain, and optimize React Native applications for both iOS and Android platforms.

• Integration: Work closely with back-end developers to integrate mobile applications with APIs and other services.

• Collaboration: Collaborate with cross-functional teams, including UI/UX designers, product managers, and other developers, to deliver a cohesive product experience.

• Performance Optimization: Ensure the performance, quality, and responsiveness of applications by identifying bottlenecks and implementing solutions.

• Code Reviews: Conduct code reviews and ensure adherence to coding standards, best practices, and company guidelines.

• Testing: Write and maintain unit and integration tests to ensure the reliability and robustness of the application.

• Documentation: Create and maintain technical documentation for code and APIs.

• Stay Updated: Keep up with the latest industry trends and technologies, and continuously improve the development process.

Qualifications:

       •  Education: Bachelor's degree in Computer Science, Software Engineering, or a related field        (or equivalent work experience) 

• Experience: 4+ years of experience in mobile development, with at least 3 years of hands-on experience with React Native.

• Skills: Proficiency in JavaScript and strong experience with React Native, including working with state management libraries (such as Redux or MobX) and navigation libraries.

• Platform Knowledge: Solid understanding of mobile development for both iOS and Android, including platform-specific considerations.

• Performance: Experience with performance optimization techniques for mobile applications.

• Version Control: Familiarity with version control systems (e.g., Git).

• Collaboration: Ability to work effectively in a team environment and communicate technical concepts to non-technical stakeholders.

• Problem-Solving: Strong problem-solving skills and attention to detail.

Preferred Skills:

• TypeScript: Experience with TypeScript for type safety and better code maintainability.

• UI/UX Understanding: Familiarity with UI/UX design principles and ability to collaborate effectively with designers.

• Back-End Knowledge: Basic understanding of back-end technologies and APIs to facilitate seamless integration.

• Testing Frameworks: Experience with testing frameworks such as Jest or Mocha.

• CI/CD: Knowledge of continuous integration and continuous deployment (CI/CD) pipelines.

• App Store Deployment: Experience with deploying applications to the Apple App Store and Google Play Store.

Job Description: Angular Developer

We are looking for an Angular Developer responsible for the client side of our service. Your primary focus will be to implement a complete user interface in the form of a mobile and desktop web app, with a focus on performance. Your main duties will include creating modules and components and coupling them together into a functional app. The artistic design will be delivered to you, together with a few HTML templates, but we will ask for your help in regard to animations, CSS, and final HTML output. You will work in a team with the back-end developer, and communicate with the API using standard methods. A thorough understanding of all of the components of our platform and infrastructure is required.

Responsibilities

· Delivering a complete front end application

· Ensuring high performance on mobile and desktop

· Writing tested, idiomatic, and documented JavaScript, HTML and CSS

· Coordinating the workflow between the graphic designer, the HTML coder, and yourself

· Cooperating with the back-end developer in the process of building the RESTful API

· Communicating with external web services

Experience Required: Minimum 2 – 4 years.

Skills and Qualifications:

· Proficiency with JavaScript , HTML5, Core Java and Angular (6 and above)

· Professional, precise communication skills

· Deep knowledge of Angular practices and commonly used modules based on extensive work experience

· Creating self-contained, reusable, and testable modules and components

· Ensuring a clear dependency chain, in regard to the app logic as well as the file system

· Ability to provide SEO solutions for single page apps

· Extensive knowledge of CSS and JS methods for providing performant visual effects and keeping the framerate above 30fps at all times

· Thorough understanding of the responsibilities of the platform, database, API, caching layer, proxies, and other web services used in the system

· Validating user actions on the client side and providing responsive feedback

· Writing non-blocking code, and resorting to advanced techniques such as multi-threading, when needed

· Creating custom, general use modules and components which extend the elements and modules of core Angular

· Experience with all levels of operation available to the front-end, such as from creating XHRs in vanilla JS to using a custom wrapper around $resource

· Experience with building the infrastructure for serving the front-end app and assets

· Architecting and automating the build process for production, using task runners or scripts

· Documenting the code inline using JSDoc or other conventions

· Writing extensive unit tests using automated TDD tasks

· Creating e2e test suites for all components, and running them with Protractor (or a well-reasoned alternative)

· Creating configuration, build, and test scripts for Continuous Integration environmen

Software Developer - React Native Developer

Job Description

A major part of our work at Cobold Digital LLP is getting businesses online. We provide efficient solutions to our clients in the fields of Website Design & Development & Website Maintenance. If you wish to work with a wide array of clients that depend on you to represent them online, our Website Development team is the right place for you.

We are looking for an experienced top-notch React Native Developer to grow with our dev team. As a React.js Developer, you will be involved from conception to completion with projects that are technologically sound and aesthetically impressive. 

Responsibilities

• Work as part of a small team to build React Native Applications for our clients.
• Architect, Build and maintain excellent React Native applications with clean codes.
• Implement pixel-perfect UI’s that match designs.
• Implement clean, modern, smooth animations and transitions that provide an excellent user experience.
• Integrate third-party APIs.
• Write unit and integration tests.
• Release applications to IOS and Android platforms.
• Work with Native modules when required.
• Assist with building estimates.
• Attend daily standups
• Interact clients via google meet, Zoom, and Emails.
• Work with Modern tools like Jira, Bitbucket, Google Docs, etc.

Requirements 

• 2+ years of Profession experience working with React Native.
• 3+ years of experience as Software Developer
• Experience with Swift,Objective C and Java is a plus but not required
• Must have experience on a large complex system
• Ability to take ownership of your work.
• Ability to manage multiple projects
• Undertaking of React Native best practices.Experience with JavaScript
• Experience with REACT
• Experience with HTML / CSS
• Experience with REST API's
• Git knowledge is a plusTeam player 
• Good time-management skills 
• Great interpersonal and communication skills

• Designing and building advanced applications for the Android platform
• Collaborating with cross-functional teams to define, design and ship new features
• Unit-testing code for robustness, including edge cases, usability, and general reliability
• Working on bug fixing and improving application performance
• Continuously discovering, evaluating and implementing new technologies to maximize development efficiency

What you need to have:

• 3 to 6 years Android app development experience
• Hands on experience in developing high performance mobile applications
• Strong knowledge of Java,Kotlin,Android SDK, different versions of Android, and how to deal with different screen sizes
• Familiarity with RESTful APIs to connect Android applications to back-end services
• Strong knowledge of Android UI design principles, patterns, and best practices
• Experience with offline storage, threading, and performance tuning
• Ability to design applications around natural user interfaces, such as touch
• Familiarity with cloud message APIs and push notifications
• Familiarity with the use of additional sensors, such as gyroscopes and accelerometer
• Must have experience in BLE and BT
• Good understanding of unit, system and end to end testing and automation of mobile applications/ Android applications
• Familiarity with the MVC and MVVM design patterns
• Knowledge of the open-source ecosystem and the libraries available for common tasks
• Experience building, testing and distributing native apps that consume RESTful services
• Hands-on coding, systems analysis, design and delivery of projects assigned
• At least three native applications deployed in the play-store
• Proficiency in code versioning tools such as GIT

Joining: Immediate

Designation: Android Developer

No of Vacancy: 1

Job Brief: We are looking for an Android Developer who possesses a passion for pushing

mobile technologies to the limits. This Android app developer will work with our team of

talented engineers to design and build the next generation of our mobile applications.

Android programming works closely with other app development and technical teams.

Roles and Responsibility:

• Designing and developing advanced applications for the Android platform
• Unit-testing code for robustness, including edge cases, usability, and general

reliability

• Bug fixing and improving application performance
• Design and build advanced applications for the Android platform
• Collaborate with cross-functional teams to define, design, and ship new features
• Work with outside data sources and APIs
• Unit-test code for robustness, including edge cases, usability, and general reliability
• Work on bug fixing and improving application performance
• Continuously discover, evaluate, and implement new technologies to maximize

development efficiency

Requirements:

• Knowledge of Objective C, Swift, React Native can be considered as add on.
• BS/MS degree in Computer Science, Engineering or a related subject
• Proven software development experience and Android skills development
• Proven working experience in Android app development● Have published at least one original Android app
• Strong knowledge of Android SDK, different versions of Android, and how to deal

with different screen sizes Familiarity with RESTful / JSON APIs to connect Android

applications to back- end services

• Strong knowledge of Android UI design principles, patterns, and best practices

Experience with offline storage, threading, and performance tuning

• Ability to design applications around natural user interfaces, such as touch

Knowledge of the open-source Android ecosystem and the libraries available for

common tasks

• Ability to understand business requirements and translate them into technical

requirements Familiarity with cloud message

• PIs and push notifications Understanding of Google's Android design principles and

interface guidelines Proficient understanding of code versioning tools, such as SVN /

GIT Familiarity with continuous integration

• Experience with Android SDK
• Experience working with remote data via REST and JSON
• Experience with third-party libraries and APIs
• Working knowledge of the general mobile landscape, architectures, trends, and

emerging technologies

• Solid understanding of the full mobile development life cycle.

Key Skills: Android SDK, SOA, XML, MySQL, JSON, Android, SQLite, Git, Objective C,

Swift, GIT