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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.
Quantsapp is looking for an iOS developer responsible for the development and maintenance of
existing application along with continuous integration of new features, who can take the
ownership and work independently. Your primary focus will be development of iOS applications
and their integration with back-end services. You will be working alongside other engineers and
developers working on different layers of the infrastructure. Therefore, a commitment to
collaborative problem solving, sophisticated design, and the creation of quality products is
essential.
Responsibilities :
- Integrate the design into high quality code
- Ensure the performance, quality, and responsiveness of application
- Identify and correct bottlenecks and fix bugs
- Work along-side other developers working on different platform for the Application.
- Therefore, commitment to collaborative problem solving, design implementation and creating quality product is essential
- Minimum 2 years of experience in iOS Application Development
- Proficient with iOS SDK, Swift and Cocoa Touch
- Understanding of Apple's design principles and interface guidelines
- Must have already deployed at least one app on AppStore
- Working knowledge of Web Services & REST (JSON) APIs, SQLite, Google API
- Integration, Firebase
- Familiarity with cloud message APIs and push notifications
- Experience with third-party libraries and APIs
- Strong mobile UI design and implementation experience
- Understanding of code versioning tools
Job Description:
- Min 4-5 years of experience in Mobile application development
- Min 2-year Experience in React Native app development
- Firm grasp of the JavaScript and TypeScript language and its nuances, including ES6+ syntax
- Follow best practices using Android Guidelines
- Knowledge of functional or object-oriented programming
- Technically strong in React-Redux/Mobx development and deep understanding of core mobile concepts such as lifecycle, UI, networking, caching, device features, etc
- Experiences with automated testing suites, like Jest or Mocha
- Experience integrating third-party frameworks. Worked with logging and capturing user navigation and app usage to Analytics and Crashlytics for understanding the most used features by users.
- Knowledge of mobile security and cryptography is an advantage.
- Good working knowledge of tools such as Git, JIRA, Jenkins, or any tools that are similar to these.
- Experience with agile methodology is preferred
- Good communication skills
- Good knowledge of app telemetry integration & app performance management
- Have published at least 2 React Native apps on Play Store & Appstore
Key Skills:
- Implement robust app architectures and complex user interfaces
- Component Design and coding new features. includes unit tests, debugs, and solves defects
- Component Design/Coding/Unit Testing/Debugging
- Responsible for designing app architecture and integration design to various external systems (APIs, 3rd Party SDK)
- Follow best practices using React Native Guidelines
- Understand reacting design patterns like HOC, Render Props, and their applications.
- Good understanding of atomic design principles
- Experience with CSS-in-js / styled-components
- Good understanding of Android & iOS working principles, Release process
- Ability to multi-task under pressure and work independently with minimal supervision
- Work on high-performance consumer-facing apps
- Understanding the nature of asynchronous programming and its quirks and workarounds.
- Good understanding of server-side templating languages (such as jade, EJS, and pug).
- Creating database schemas that represent and support business processes.
- Implementing automated testing platforms and unit tests.
- Basic understanding of front-end technologies, such as HTML5, SCSS, and CSS3.
- Ability to make recommendations on UI design and UX best practices.
of the infrastructure.
Job Title: Android Developer
Experience: 0-1 years
Job Type: Full-time In-office
Job Location: Gurgaon
JOB DESCRIPTION DUTIES & RESPONSIBILITIES
➢ Translate designs and wireframes into high-quality code.
➢ Design and build, and maintain high-performance, reusable, and reliable applications for the
Android platform/Java code
➢ Identify and correct bottlenecks and fix bugs to improve application performance.
➢ Work with outside data sources and APIs
➢ Help maintain code quality, organization, and automatization
➢ Unit-test code for robustness, including edge cases, usability, and general reliability
➢ Ensure the best possible performance, quality, and responsiveness of the application
QUALIFICATIONS & REQUIREMENTS
➢ BS/MS degree in Computer Science, Engineering, or a related subject
➢ Proven software development experience and Android app development
➢ Strong knowledge of Android SDK, different versions of Android
➢ Familiarity with RESTful APIs to connect Android applications to back-end services
➢ Strong knowledge of Android UI design principles, patterns, and best practices
➢ Experience working with remote data via REST and JSON
➢ Experience with offline storage, threading, and performance tuning
➢ Ability to design applications around natural user interfaces, such as “touch.”
➢ Familiarity with the use of additional sensors, such as gyroscopes and accelerometers
➢ 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 APIs and push notifications
➢ A knack for benchmarking and optimization
➢ Understanding of Google’s Android design principles and interface guidelines
➢ Proficient understanding of code versioning tools, such as Git
➢ Familiarity with continuous integration
Responsibilities:
- Work with an open-source iOS ecosystem and the libraries available for common tasks.
- Work directly with developers and product managers to conceptualize, build, test and realize products.
- Build reusable iOS software components for the platform.
- Unit-test code for robustness, including edge cases, usability, and general reliability.
- Work on bug fixing to improve application performance and shipping new features as required
Requirements:
- Experience with iOS Design patterns, memory management, REST web-services and JSON Parsing. Designing and building advanced applications for the iOS platform
- Collaborating with cross-functional teams to define, design, and ship new features
- Design and build advanced applications for the iOS platform
- Work on bug fixing and improving application performance
- Can integrate apps with backend and 3rd party API’s.
- Good programming skills in Objective-C/Swift and extensive knowledge of Apples SDKs and frameworks like Core Data, Core Graphics, Foundation, UIKit, etc.
- Have published one or more applications in an iOS App Store.
- Knowledge of iOS App Store deployment process.
Android Developer JD @Tailwebs
We are looking for an Android 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, develop, modify, and implement mobile applications using Android.
-
Implement creative and usable user interfaces.
-
Collaborate with cross-functional teams to define, design, and ship new features
-
Work on bug fixing and improving application performance.
-
Continuously discover, evaluate, and implement new technologies to maximize development
efficiency.
Required Technical Skills:
-
Object-Oriented Programming Skills
-
Strong in Core Java, and Android SDK implementation & good knowledge on Web Services,
Web APIs & JSON- Kotlin
-
Strong debugging & troubleshooting skills.
-
Good understanding of Android frameworks like Activity Manager, Resource Manager, Location
Manager, and Notification Manager
-
1 to 3 years, fresher’s with proven development skills considered.
Job Type: Full-time
Salary offered: INR 250,000 – INR 600,000
Experience with developing native Applications for Android and iOS using Xcode, Objective C, Cocoa , iPhone SDK ,Android Studio and Android SDK.
- Hands on Experience with any mobile hybrid framework.
- Independently drive the design and development of mobile application project.
- Conceptualize and design Mobile applications based on need.
- Should have knowledge of Java, Objective C, Swift, GPS, SQLlite, Xcode IDE, iPhone UIKit framework.
- The coder should be well versed with using web services, Interface, Builder & Debugging tools, Google map kits, multitasking.
- Candidate must have independently designed and developed mobile applications
- Knowledge on App publishing process to Stores
- Familiarity with Push notifications, Payment Gateway Integrations, In-app purchases
- Proficient with API request and JSON Handling
- Expert and proficient in clean code best practices.
- Strong analytical and troubleshooting skills.
- Design and build advanced applications for the mobile 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.
● Solid Experience in SWIFT.
● Solid experience in native IOS development frameworks..
● Experience with iOS frameworks such as UIView Animation or Core Animation.
● Experience with offline storage, threading and performance tuning.
● Comprehensive understanding of Agile development process.
● Experience working on 3rd Party frameworks ( alamofire/afnetworking).
● Experience in UIKit, Coregraphics, auto layout.
Contact : Arul - 8.0.5.0.6.8.0.6.8.4









