Mobile App 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.

About the Role: We are a Y Combinator backed company (YC W21) and have closed our pre-series A round. Backed by experienced founders/CXOs/directors from renowned companies like WhatsApp, Lulu group, OYO, Netflix, Pepsico, Cleartax, InMobi etc. to add to our team.

In 2025, Businessonbot has grown 20% MoM, March'25, MRR and inched towards profitability in Q1 of FY 2025. We target a massive wave of D2C businesses in India. In the year 2025, we are the market leader in our domain. There’s never been a more exciting time to be in BusinessOnBot.

We are on a mission to help a million+ consumer brands with automated sales and user acquisition via omni channels (WhatsApp/Instagram/Email and SMS)

Position Overview: We are looking for a passionate and skilled React Native Mobile Developer with hands-on experience in building high-performance mobile applications for both iOS and Android platforms. In this role, you will be responsible for developing scalable, user-centric mobile solutions that align with product goals and enhance overall customer experience.

You will work closely with Product, Design, and Engineering teams to design, develop, test, and deploy new features while ensuring application performance, responsiveness, and reliability. The ideal candidate is a proactive problem-solver with strong technical expertise in React Native, a solid understanding of mobile architecture and APIs, and the ability to write clean, maintainable, and efficient code in a fast-

paced SaaS environment.

Key Responsibilities:

1. Develop and maintain mobile applications using React Native for both iOS and Android platforms.
2. Collaborate with cross-functional teams to define, design, and deliver new features.
3. Ensure the performance, quality, and responsiveness of applications.
4. Identify and correct bottlenecks and fix bugs to enhance application performance.
5. Write clean, maintainable, and efficient code following industry standards and best practices.
6. Integrate third-party APIs and services.
7. Work on continuous integration and continuous deployment (CI/CD) pipelines for mobile applications.
8. Stay updated on the latest technologies and frameworks to continuously improve app development.

Skills and Qualifications:

• Proven experience as a React Native Developer (minimum 1 years).
• Hands-on experience with React Native, including complex app architectures, Redux-Saga, Sockets.io or Context API.
• Understanding of mobile app development principles, including the mobile development lifecycle.
• Knowledge of RESTful APIs to connect mobile apps with backend services.
• Experience in optimizing app performance and troubleshooting crashes.
• Strong problem-solving and debugging skills.

Must Have:

• Experience with TypeScript in React Native and Angular
• Understanding of mobile app distribution via App Store and Play Store.

Benefits:

• Work closely with Product and Engineering teams in a fast-growing SaaS company
• Exposure to SaaS product workflows and direct collaboration with product & tech teams
• Positive and collaborative work culture

We are looking for a React Native developer who can build a performant mobile app on both the iOS and Android platforms. We’re looking to take our dashclicks.com web app and turn portions of it into an amazing mobile app.

You will be responsible for architecting and building this app, 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:

• Transition existing React web apps to React Native.
• Build pixel-perfect UIs across both mobile platforms (iOS and Android).
• Design and develop highly complex application components, and integrate software packages, programs and                reusable objects 
• Leverage native APIs for deep integrations with both platforms.
• Diagnose and fix bugs and performance bottlenecks for performance that feels native.
• Maintain code and write automated tests to ensure the product is of the highest quality.
• Make use of additional JavaScript libraries such as Redux to make asynchronous API calls as well as improve the           performance of the apps
• Perform real-time monitoring and fixing crashes.
• Plan the data and presentation layer of the applications’ front-end Implement pixel-perfect UI's that match designs.    
•  Implement clean, modern, smooth animations and transitions that provide an excellent user experience.
• Write unit and integration tests. Work with native modules when required.

Skills:

• 3+ years of experience in React Native (iOS and Android).
• Have a deep knowledge of Redux architecture
• Must have worked with Firebase Database and Firm grasp of the JavaScript language and its nuances, including ES6+ syntax
• Strong understanding of back-end and front-end technologies such as NodeJS, React.JS, Web Socket, Pub-Sub, TypeScript, HTML5, CSS and CSS-In-JS.
• Knowledge of object-oriented programming
• Ability to write well-documented, clean JavaScript code
• React assumptions concepts like Virtual DOM, JSX, Component State and component lifecycle 
• 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
• Knowledge of monitoring tools like crash reporting and analytics
• Knowledge of functional or object-oriented programming
• Experience with automated testing suites, like (Jest or Mocha)
• Understanding of mobile UI frameworks like Native Base, UI Kitten, Material Kit etc.
• Experience implementing authorization and authentication workflows using JWT, OAuth2 etc.

Things that make us the World’s leading white-label marketing software development company:

• We do not outsource any of our fulfillment services.
• We offer a fully white-labeled dashboard allowing our users’ clients to log in and see their accounts’ progress.
• We offer educational and prospecting tools to help businesses generate growth and revenue.

What do we bring to the table?

• Competitive base pay and benefits package with exciting growth plans.
• A chance to work with professionals across various areas of expertise on a product loved by 30,000+ marketing agencies worldwide.
• 9 hours a day & 5 days a week working structure.
• A chance to learn & grow in a fast-paced environment, driving transformational growth for our brand.
• Fully remote work offers you the chance to balance your professional and personal life.

Come join us on this journey, we're looking forward to talents like you.

Own Android SDKs, working hand-in-hand with the founding team

Design and build delightful user interfaces for native apps on Android

You will be (co-) responsible for our software development kit (SDK) for Android

Building mobile apps in both Swift and Kotlin.

You work independently on your own code, but you also spend time collaborating with others.

You are involved in all stages of app development and contribute to the roadmap.

You get the freedom to experiment with new Android technology.

Ownership — advocate for projects and solutions that need to be launched ground up.

Experience

Min 2 to 4 years in developing Android applications in Java / Kotlin / C++ /Gradle/Groovy.

Worked on SDKs/Frameworks.

Strong understanding of software design patterns as well as Android specifics.

Experience with authenticated sessions using authentication tokens and have at-least

fundamental knowledge of app security.

Good to have:-

Experience with Cross-platform frameworks is a plus (React Native, Flutter, Cordova,

Xamarin).

Have implemented security standards and guides.

Experience building applications at scale.

Experience with third-party libraries and APIs like Mobile Vision, MLKit and/or

Camera API.

Good understanding of garbage collection, design patterns and continuously

discover, evaluate,and implement new technologies to maximize development efficiency.

Unit-test code for robustness, including edge cases, usability, and general

reliability

- Responsible to create and manage iOS Application for both iPhone and iPad using APIs, Third Party SDKs

Required – Swift (MVVM), Objective-C