Purpose: We are looking for React Native Application Developer who possesses a passion for mobile technologies.
Roles & Responsibilities:
- Ideal candidate should have Working knowledge of React Native and React JS is a must.
- Over 3+ years of React Native experience with strong basics.
- At least have done 4/5 projects using React Native.
- Strong passion for Programming in general and Android and IOS App development.
- Strong problem solving skills.
- Strong system design and architecture skills.
- Curiosity to tinker around, explore new paradigms and strong zest for continuous improvement.
- Over 3+ years of Mobile development experience with strong basics.
- E2E App development and/or experience of developing SDKs is good to have.
Expected Start Date: 1/4/2021
Job Type: Full-time

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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.
Requirements:
- 4-6 years of overall development experience.
- Very good understanding of core Javascript concepts.
- 3 years of React Native experience for iOS and/or Android.
- Extensive knowledge about mobile app development.
- This includes the whole process from the first line of code to publishing in the store(s).
- Some understanding of the build process involved with iOS and Android.
- Comfortable with basic design concepts and flex ui.
- Great attention to code quality & coding standards.
- Good grasp of architectural principles and patterns.
- Proficiency in Javascript/Typescript.
- Very good communication skills in English.
communication, student portfolios or reports creation, Toddle makes working together simple
and fun. Currently, Toddle is being used by 1,000+ progressive schools and 25,000+ teachers
across the world. All our growth has been 100% organic and fuelled by positive word of mouth. Over the next 3 years, our goal is to become the preferred teaching partner of more than 50% K-12 teachers across the world.
About the Lead Mobile Engineer Role
We are looking for a passionate and skilled Mobile Engineer, one who partners with us in
creating beautiful products for teachers, students and parents alike. As a Mobile Engineer, you
will play a major role in designing, developing and deploying high-quality web platforms. In this
multifaceted role, you will get the opportunity to work along curriculum experts, teachers, and
students, and user-test the product in real school settings.
Required Skills:
• Proficiency in mobile development in ReactNative
• Native development experience in iOS or Android
• Programming skills - JS, HTML5/CSS3
• Technologies/Frameworks - React,ReactNative, Node.js, GraphQL
Tooling: Webpack, Git
• Lead a team of 2 - 3 engineers
• Work experience: 5+ years
Good to have:
• Experience in dev ops - AWS, Lambda, RDS, CI/CD
• Experience in software testing for Web / Mobile
• Basics of Photoshop,Sketch
Job brief
We are looking for an iOS developer who possesses a passion for pushing mobile technologies to the limits and will work with our team of talented engineers to design and build the next generation of our mobile applications.
Responsibilities
- Design and build advanced applications for the iOS platform
- Collaborate with cross-functional teams to define, design, and ship new features.
- 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 and skills
- BS/MS degree in Computer Science, Engineering or a related subject
- Proven working experience in software development
- Working experience in iOS development
- Have published one or more iOS apps in the app store
- A deep familiarity with Objective-C and Cocoa Touch
- Experience working with iOS frameworks such as Core Data, Core Animation, Core Graphics and Core Text
- 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
• Solid understanding of the full mobile development life cycle.
• Effectively replicate UI, UX designs & concepts provided by Visualizers in iOS Development Environment.
• Strong knowledge with MVC, MVVM, VIPER.
• Expert in OOPs, REST APIs, JSON, Data-Binding: Local Storage, Real-Time Data.
• Experience with threading, and performance tuning.
• Understanding of Apples design principles & interface guidelines and knowledge of APP Publish process on APP Store.
• Proficient understanding of code versioning tools, such as Git.
• Familiarity with CI/CD.
• Experience with performance and memory management
• Familiarity with cloud message APIs and push notifications
• A knack for benchmarking and optimisation
• Knowledge in AVPlayer, Video Streaming and Voice/Video calling will be an added advantage.
Skills:
Swift
Objective C
AVPlayer(Audio & Video)
Memory Management
Frameworks
Unit Testing
We are looking for a React Native developer interested in building performing 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:
- Build pixel-perfect, buttery smooth UIs across both mobile platforms.
- Leverage native APIs for deep integrations with both platforms.
- Diagnose and fix bugs and performance bottlenecks for performance that feels native.
- Reach out to the open source community to encourage and help implement mission-critical software fixes—React Native moves fast and often breaks things.
- Maintain code and write automated tests to ensure the product is of the highest quality.
- Transition existing React web apps to React Native.
Skills :
- Firm grasp of the JavaScript (and TypeScript or ClojureScript)language and its nuances, including ES6+ syntax
- Knowledge of (functional or object-oriented)programming
- Ability to write well-documented, clean Javascript code
- Rock solid at working with third-party dependencies and debugging dependency conflicts
- Familiarity with native build tools, like XCode, Gradle (Android Studio, IntelliJ)
- Understanding of REST APIs, the document request model, and offline storage
- Experience with automated testing suites, like (Jest or Mocha)
- Who thinks they are best on IOS Platform
- Who think they work independently with less supervision.
- Objective-C and Swift in-depth Knowledge
- Architecture Knowledge is Plus (VIPER Architecture)added Advantage
- Must have at least 3 good quality iOS apps in the portfolio to showcase
- Knowledge of Android Development will be a plus






