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.

Experience: 3 – 5 Years

React Native framwork app developement for IOS and android.
Build app and UI components from prototypes and wireframes
Working with Redux architecture.
Expo tool for development and app release ( Advantage)
APK and IPA generation using expo tool.

Responsibilities:

·       Develop and maintain mobile applications using Flutter framework

·       Work with UI/UX designers to implement engaging and intuitive user interfaces

·       Collaborate with back-end developers to integrate with RESTful APIs and other services

·       Participate in code reviews and provide constructive feedback to improve code quality

·       Stay up-to-date with emerging trends and technologies in mobile app development

·       Participate in Agile development process, including sprint planning, daily stand-ups, and retrospectives

·       Debug and troubleshoot issues reported by end-users

·       Contribute to the development of project plans, timelines, and budgets

·       Communicate effectively with team members and project stakeholders

Requirements:

·       Bachelor's degree in Computer Science or related field

·       Strong experience with Flutter framework and Dart programming language

·       Experience with mobile app development for both iOS and Android platforms

·       Strong understanding of software design patterns and architectural principles

·       Strong debugging and troubleshooting skills

·       Experience with Agile development methodologies

Responsibilities:

- Develop and maintain high-quality mobile applications using React Native.

- Collaborate with cross-functional teams to gather requirements and translate them into high-level designs.

- Write clean, reusable, and well-structured code following industry best practices and coding standards.

- Conduct code reviews and provide constructive feedback to ensure code quality and adherence to standards.

- Mentor and guide junior developers, providing technical expertise and promoting professional growth.

- Collaborate with backend developers to integrate APIs and ensure smooth data flow between the app and server.

- Stay updated with the latest trends and advancements in React Native and mobile app development.

- Work in a 10 AM to 6 PM, six-day office role, maintaining regular attendance and punctuality.

Required Skills and Qualifications:

- Strong proficiency in React Native development.

- Experience with Redux or similar state management libraries.

- Proficiency in integrating APIs and working with backend services.

- Sound knowledge of JavaScript, ES6+, and modern web technologies.

- Familiarity with Git version control system and agile development methodologies.

- Good problem-solving and debugging skills.

- Excellent communication and teamwork abilities.

- Bachelor's degree in Computer Science or a related field (preferred).

Join Arroz Technology Private Limited as a React Native App Developer and be part of an innovative team driving the development of cutting-edge mobile applications. This role offers competitive compensation and growth opportunities within a dynamic work environment.

What you need to have:

• Design and Build sophisticated and highly scalable products using Flutter.
• Translate and build designs and wireframes into high-quality responsive UI code.
• Proficiency in the use of Model-View-Controller (MVC) and Model-View-View Model-Controller (MVVM) which relates to designing and developing architecture.
• Learn and explore feasible architecture options for implementing new features.
• Suggest space and time-efficient Data Structures.
• Follow best practices while maintaining structure and comprehensive documentation to ensure context across teams.
• Use CI/CD for smooth deployment.
• Document the project and code efficiently.
• Communicate with the Project Manager regarding the status of projects and suggest appropriate deadlines for new functionalities.
• Ensure security guidelines are always followed while developing the app.
• Maintaining software through product lifecycle including design, development, verification, and bug fixes.
• Perform time profiling and memory leaks assessment.
• Help with building the company's tech team and iterating on the hiring framework; Create peer learnings for team members and build context for new team members.
• Provide regular feedback to your team (peers and managers) to ensure continuous improvement.

Skills & Requirements

• Must have experience working with Flutter SDK and Dart programming language.
• Strong knowledge of Flutter widgets like Cupertino for iOS and Material Components for Android.
• Knowledge of building flutter modules and flutter plug-ins.
• Knowledge of native Android and iOS: To build custom Flutter Packages.
• Firebase: Should have experience with Cloud Firestore, Push Notifications, Cloud Functions, and Analytics.
• Git: To manage and collaborate in different projects with the rest of the team.
• Know how to publish apps to Playstore and Appstore

Good to have

• Experience in the fintech industry
• Experience working with cybersecurity and compliance

RESPONSIBILITIES:

• Developing app using Flutter for both Android & iOS platforms.
• Writing quality code independently that is simple, reliable, and scalable.
• Evaluating and implementing out-of-the-box ideas for application development.
• Working with the team to manage, optimize, and customize multiple applications.
• Detecting and troubleshooting application issues.

REQUIREMENTS:

• Must have 1+ years of experience in Flutter.Should have worked and successfully deployed apps using Flutter framework.
• Good knowledge of Flutter SDK & Dart programming language.
• Should have worked on mobile platforms like Android or iOS.
• Should have developed & worked with Flutter widgets for iOS & Android with any of the state management solutions like Bloc, Provider, Mobx, etc.
• Mobile app architecture design and optimization. Extreme attention to detail and the ability to match the design as closely as possible.
• Ability to work closely with Product Managers, other development team members.
• Understanding of Functional Reactive Programming is a must.
• Comfortable with Test-Driven Development.