Flutter Developer

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 Summary:

We are looking for a skilled and passionate Flutter Developer to join our development team. In this role, you will be responsible for designing and building cross-platform mobile applications for Android and iOS using the Flutter framework. The ideal candidate has a strong background in mobile app development, a keen eye for detail, and a drive to build seamless user experiences.

Key Responsibilities:

• Design and develop high-quality, scalable, and maintainable mobile applications using Flutter.
• Collaborate with product managers, UI/UX designers, and backend developers to deliver engaging and functional applications.
• Write clean, reusable, and efficient Dart code following best practices and design patterns.
• Integrate RESTful APIs, third-party libraries, and platform-specific features.
• Conduct unit testing and participate in code reviews to ensure high code quality.
• Troubleshoot and debug application issues and performance bottlenecks.
• Stay up-to-date with Flutter and mobile development trends, technologies, and best practices.
• Participate in Agile/Scrum development processes, including sprint planning and retrospectives.

We are seeking a skilled React Native Developer to join our development team in Noida. As a React Native Developer, you will be responsible for designing, developing, and maintaining high-quality mobile applications using the React Native framework. You will work closely with cross-functional teams to deliver outstanding mobile solutions.

Responsibilities:

• Develop and maintain mobile applications using React Native for iOS and Android platforms.
• Collaborate with designers and backend developers to implement intuitive user interfaces and ensure seamless user experiences.
• Write clean, efficient, and maintainable code, following coding standards and best practices.
• Integrate third-party libraries and APIs to enhance application functionality.
• Conduct thorough testing and debugging to identify and resolve any issues or bugs.
• Stay updated with the latest industry trends, technologies, and best practices in mobile application development.
• Collaborate with backend developers to ensure smooth integration of server-side logic.
• Participate in code reviews and provide constructive feedback to team members.

Requirements:

• 2-5 years of professional experience in mobile application development.
• Strong proficiency in React Native framework and JavaScript.
• Good understanding of mobile app development concepts, including UI/UX design principles and mobile-specific considerations.
• Experience with RESTful APIs and asynchronous programming.
• Familiarity with version control systems, such as Git.
• Knowledge of mobile app performance optimization techniques.
• Strong problem-solving and debugging skills.
• Excellent communication and collaboration abilities.
• Ability to work effectively in a fast-paced and dynamic environment.
• Bachelor's or Master's degree in Computer Science or a related field.

Preferred Skills:

• Have practical experience on deploying an app on "Play store"

About us:

Zapit aims to be a multi-platform single app solution for universal payments using blockchain technology. Our goal is to spread economic freedom by pushing the boundaries of p2p payments by introducing non-custodial decentralised financial services.

We are looking to build smart contracts that can be deployed for real world use cases such as insurances, loans and other useful decentralised financial products. We are also working towards building an economy where concepts like company shares, gift cards, discount coupons, loyalty points and more can be tokenised including NFTs in the form of art, music, gaming items, event tickets, design concepts and more.

Responsibilities:

• Collaborate with designers to develop a visually appealing, responsive & optimised app for mobile, web & desktop platforms.
• Use Flutter framework to develop great user experiences with effective workflows.
• Build reusable code and robust libraries of UI components.
• Write clean, maintainable and documented code with solid test coverage.
• Participate in the product roadmap discussions.
• Design, develop, test, deploy, maintain, scale and improve code base.
• Implement methods to understand user interaction and engagement on the product through metrics.

Requirements:

• Minimum experience of 1.5 years in Dart/Flutter development with a good knowledge of native Android & iOS development.
• Good understanding of Data Structures and Algorithms.
• Passionate and opinionated about beautiful design with an eye for detail.
• Should be updated with latest front end technologies and trends.
• Proficient knowledge of cross-browser compatibility issues and handle graceful degradation.
• Should have delivered multiple products.
• Interest in building things from scratch.
• Willingness and affinity to learn.
• Excellent communication skills.
• Self-motivated, work well independently or as part of the team.

Our Stack:

We tend to work with Javascript, Typescript, Dart, Flutter, gRPC, Express.js, Heroku, NodeJS, MongoDB, AWS, Solidity, Bitcoin Script.

Good-to-Have:

• Open Source contributions.
• Interest in Cryptocurrency/Payments space.
• Familiar with Git and GitHub/GitLab

Incentives:

• Equity in the company
• Get to work in a distributed team.
• Handsome pay. (Competitive)
• Fast opportunities for personal and professional learning and growth, tons of autonomy and responsibility, results-driven environment, international team, exposure to a wide array of ecosystems and trailblazing technology, flexible work hours.

Please include something beautiful you’ve implemented in the past if possible!

If you have examples of a project where you iterated after learning new things from potential users, please talk about that!

Job Location: Pune

Experience: 2 to 5 years

Annual CTC: 400000 - 1000000 INR

Notice Period:  1 Month or Less

Skills: Flutter, Platform level iOS/Android, Mobile Application Development, SQLite.

Job Requirement:

• Desire to work in a startup environment, Fun@work culture and able to self-manage.
• Must have at least 2 years of experience in building mobile applications and built at least two Android and/or iOS apps with Flutter.
• A strong commitment to quality and willingness to learn.
• Have published one or more mobile apps in Google Play or App Store.
• Experience with third-party libraries and APIs.
• Experience working in an agile development process.
• Be proficient in using version control and continuous integration, with tools such as Bit Bucket, Git and Jenkins.
• Write clear, maintainable and testable code that you are proud of.
• Good communication skills.

Good to have: (Not Mandatory)

• Ability to take an ownership & leadership role on the team.
• Working knowledge of the general mobile landscape, architectures, trends, and emerging technologies.
• Solid understanding of the full mobile development life cycle, including automated testing and building.
• Experience working in Fintech payments and eCommerce.
• General knowledge of Location Services, Maps, and other common Android/IOS libraries.