Mobile App Developer (Flutter)

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: Flutter Developer

Location: Gurugram, Haryana

Work Mode: On-site

Work Days: 5 Days a Week

Experience Required: 3+ Years

Job Overview

We are looking for a skilled Flutter Developer with 3+ years of experience to develop and maintain mobile applications for Android and iOS platforms. The ideal candidate should have strong hands-on experience with Flutter, Dart, and API integration, and be passionate about building smooth, high-performance apps.

Key Responsibilities

• Develop, test, and maintain cross-platform mobile apps using Flutter and Dart.
• Collaborate with designers and backend teams to deliver quality applications.
• Integrate APIs, third-party libraries, and Firebase services.
• Write clean, maintainable, and efficient code.
• Fix bugs and improve application performance.
• Deploy apps on Play Store and App Store.

Required Skills

• Minimum 3 years of Flutter development experience.
• Strong knowledge of Dart, State Management (GetX / Provider / Bloc).
• Experience with REST APIs, Firebase, and Git.
• Understanding of app architecture, UI/UX, and responsive design.
• Experience in publishing mobile apps.

Good to Have

• Experience with native Android/iOS development.
• Knowledge of Flutter Web or Desktop.
• Familiarity with CI/CD pipelines.

What You’ll Do:

● Develop and maintain cross-platform mobile applications using React Native (Flutter experience is a plus).

● Handle end-to-end app deployment: build, register, and release applications on Google Play Store and Apple App Store.

● Collaborate with product managers and designers to deliver high-quality UI/UX.

● Work on web application tasks as needed, including front-end (React.js preferred) or minor backend integration.

● Debug, optimize, and continuously improve app performance and scalability.

● Write clean, maintainable, and well-documented code.

What We’re Looking For:

● Minimum 2 years of professional experience in React Native development.

● Exposure to Flutter is a plus.

● Proven experience in publishing apps to both Android and iOS stores, including certificates, provisioning profiles, app review process.

● Basic knowledge of web technologies (HTML/CSS, JavaScript, React.js or similar).

● Familiarity with REST APIs, Git, and common dev tools.

● Strong problem-solving skills and a collaborative mindset.

Nice to Have

● Experience with Firebase, push notifications, analytics, or payment integration.

● CI/CD knowledge for mobile deployment.

● Backend development familiarity (Node.js, FastAPI, or similar).

• Strong knowledge of 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 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

1. AWS Cloud Solutions: We expect you to have a strong understanding of AWS services and how to architect solutions using them.
2. Use of DynamoDB, S3, Vault, Lambda, or other AWS infrastructure components.
3. Design scalable, highly available, and fault-tolerant cloud architectures.
4. Continuous Integration and Deployment (CI/CD): Understanding CI/CD pipelines and tools like AWS CodePipeline, CodeCommit, and CodeDeploy is essential. 
5. Advanced concepts in React Native. 

As a Flutter developer, you’ll work on our mobile app that is built with Flutter. You’ll help to plan and develop new features, review other people’s code, fix bugs, help in technological and business decisions, and support the internal team. You will take initiative to run projects/features smoothly.

Requirements:

• At least 1 year of Flutter experience in a production environment
• At least 3 years of industry experience

Nice to have:

• Having the knowledge required to write native plugins in Swift or Kotlin is an asset
• Having a background in native iOS and/or Android development is a big plus (e.g. experience with Xcode, Gradle, Android Studio).
• Familiar with one or more CI/CD environments: CircleCI, Gitlab, Github, etc. Knowing your way around Fastlane to build & deploy your app comes in handy
• Experience in working with state management libraries such as Riverpod

• Familiar with writing tests for your application: unit tests, widget tests and integration tests
• UI / UX design principles
• Good understanding of coding best practices and design patterns
• Understanding of security technologies (encryption, authentication, OAuth 2.0)
• Contribution to open source projects
• Interest and ability to learn other coding languages as needed

Looking for someone who are having food experience in DSA, Flutter and Dart.

Looking for Hyderabad region only.

We are looking for an Flutter Developer who possesses a passion for pushing mobile technologies to the limits.

This Flutter app developer will work with our team of talented engineers to design and build the next generation of our mobile applications. Flutter programmer works closely with other app development and technical teams.

Responsibilities

- Design and build advanced applications for the Flutter 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

Qualifications

 Bachelor's degree or equivalent experience in Computer Science or related field

 Development experience with programming languages

 SQL database or relational database skills

 Proven software development experience and Flutter skills development

 Proven working experience in Flutter app development and

 Have published at least one original Flutter app

 Experience with Flutter SDK

 Experience with Bloc Pattern

 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

About the company

Qrata is hiring for a product based startup. Their product solves homework evaluation for teachers, leading to the elimination of marks/grades, and use AI to foster a more creative generation of children. Remarkable homework app that lets teachers assign objective & subjective homework by choosing from a question bank. It also gamifies homework for students.

Mobile Developer (Flutter)

This role is perfect for a highly-skilled engineer who wants to explore new technologies, push their skills to the limit, have creative freedom, and feel like they have significant ownership of major features.

Role and Responsibilities

• Translate and build the designs and wireframes into high quality UI code.
• Use of Model-View-Controller ( MVC) and Model-View-ViewModel-Controller

           (MVVM)

• Explore possible architectures for implementing new features.
• Resolve any problems existing in the system and suggest and add new features in the complete system.
• Follow the best practices while developing the app and also keeping everything structured and well documented.
• Ensure security guidelines are always followed while developing the app.
• Maintain software through product lifecycle including design, development, verification and bug fixes.

Required Skills

• 3+ years of mobile app development (with 1-2 years in Flutter)
• Experience in Android or iOS
• Experience with Mobile design patterns e.g MVVM, GoF etc.
• Experience in writing secure mobile applications
• Fluent in Git

• Experience interacting with REST based services
• Understanding of software development life cycle
• Strong knowledge of different architecture approaches
• Knowledge of Dart programming language