Mobile 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.

Senior Mobile App Developer (Android & iOS)

Location: Brookefield, Bangalore — Onsite

Engagement: Full-Time

Experience: 3+ Years

Job Description

We are seeking a highly skilled Senior Mobile App Developer/Consultant with strong hands-on experience in building, deploying, and maintaining mobile applications for both Android and iOS, with React Native as the primary development framework.

The ideal candidate must be proficient with React Native, Android Studio, Xcode, and the end-to-end iOS App Store deployment process. This is an onsite, full-time role suitable for professionals who can take ownership and deliver high-quality product-based mobile applications. Experience in product companies or the banking/fintech domain is a strong advantage.

Primary Tech Stack (Mandatory)

React Native (Primary Framework)

Android Studio (Java/Kotlin)

Xcode (Swift/Objective-C)

RESTful APIs & Integration Patterns

App Store & Play Store Deployment Processes

Key Responsibilities

Design, develop, and maintain mobile applications using React Native for both Android and iOS.

Work with native modules when required using Swift/Objective-C and Java/Kotlin.

Build and release iOS apps to the Apple App Store, including managing certificates and provisioning profiles.

Debug, troubleshoot, and enhance mobile applications.

Optimize app performance, stability, and responsiveness.

Collaborate with product, backend, and QA teams for smooth development workflows.

Apply best practices in UI/UX, security, and mobile architecture.

Prepare documentation and provide technical guidance as needed.

Required Skills & Qualifications

3+ years of hands-on mobile development experience.

Mandatory: Strong proficiency in React Native.

Hands-on experience with Android Studio and Xcode.

Expertise in Swift, Objective-C, Kotlin, or Java.

Proven experience in building and publishing iOS apps to the App Store.

Strong understanding of RESTful API integrations.

Good knowledge of mobile UI/UX principles.

Strong debugging and problem-solving abilities.

Ability to work independently and deliver within timelines.

Nice to Have

Experience with Flutter or native-only app development.

Product-based company experience.

Exposure to Banking / FinTech systems.

Understanding of App Store Optimization (ASO).

Work Details

Location: Brookefield, Bangalore (Onsite)

Working Days: Monday to Saturday (Alternate Saturdays Off)

Timings: 9:00 AM – 6:00 PM

Key Responsibilities:

• Conceptualizing and formulating apps that are suitable for use on all types of Android devices.
• Implementing measures to safeguard users' data.
• Ensuring that the construction and presentation of your apps are congruent with the company's standards.
• Proofreading your code and correcting mistakes before each app is released.
• Collaborating with UI and UX Designers, as well as Software Testers, to ensure that each app is presentable and in perfect working order.
• Liaising with the marketing department to ensure consistency in our company's 'voice' across the board.
• Monitoring app reviews to detect areas for improvement.
• Creating app updates, including bug fixes and additional features, for release.

Key Competencies (Functional):

• Proficiency in Java, Kotlin, or C++.
• Ability to use the Android Studio, including the Android SDK, with ease.
• Proficient in code versioning tools including Mercurial, Git, and SVN.
• Knowledge of C-based libraries.
• Familiarity with push notifications, APIs, and cloud messaging.
• Experience with continuous integration.

• Significant experience working with React web and mobile along with tools like Flux, Flow, Redux, etc.
• In-depth knowledge of JavaScript, CSS, HTML, functional programming, and front-end languages
• Strong knowledge of React fundamentals such as Virtual DOM, component lifecycle, and component state
• A complete understanding of the full mobile app development lifecycle right from prototyping
• Knowledge of type checking, unit testing, typescript, prop types, and code debugging
• Experience working with REST APIs, document request models, offline storage, and third-party libraries
• Strong understanding of web technologies like JavaScript, HTML, and CSS
• Knowledge of user interface design and responsive designs
• Well-versed in a variety of React Native software and technologies such as Jest, Enzyme, ESLint, and so on

• You will be building and Shipping Robust apps to Android / ios devices using a single codebase.
• Excellent Working Knowledge of an Object-oriented language.
• Experience using Restful APIs to integrate mobile applications to server-side systems.
• Willing to work with cross platform frameworks.
• Having good knowledge of MVVM architecture.
• Understanding Basic concepts of Design for Developing user Friendly applications.

• Basic experience in Development of Android / Ios Applications and have deployed them on Google Play/ App Store.
• Minimum 1 year of Knowledge in Mobile App Development.
• In depth understanding of Front end languages like HTML, css3, and JavaScript & Object - oriented Programming Languages like JAVA and C++
• Familiarity using Version Control tools like Git, Sub version etc. and IDEs like Android Studio, VS code etc.
• Knowledge of Dart Programming language, Rest APIs and integration of Various APIs from third Parties.

• Designing and building advanced applications for the iOS platform
• Collaborating with cross-functional teams to define, design and ship new features
• Unit-testing code for robustness, including edge cases, usability, and general reliability
• Working on bug fixing and improving application performance
• Continuously discovering, evaluating and implementing new technologies to maximize development efficiency

What you need to have:

Diagnal Technologies is a fully owned subsidiary of Diagnal Inc, Hong Kong.  It’s a product company focusing on media and entertainment clients, creating Video on Demand apps for their customers. We are a team of OTT video solution specialists helping our customers build the new digital media industry in Asia Pacific and beyond. We create viable revenue generating video streaming products, enable our customers to gain business and operational insights through big data analytics and empower them to engage with their users more effectively through targeted marketing campaigns. Started its Development Center in Technopark Phase III campus and focusing on Indian and International clients.

Position: Senior Android Developer
Must have skills-Kotlin, MVVM architecture, Dependency Injection(Dagger/KOIN)

Job Description

You have:

• 1-3 years of experience of Android development in a project services or product engineering organisation
• Experience with developing highly polished consumer facing user interfaces with smooth interactivity
• Published applications on the Google Play Store
• Self motivation and ability to manage your own time to get the job done at the high international quality levels we expect
• An engineering Degree in computer science or equivalent practical experience
• A solid understanding of operating system fundamentals, application performance optimisation and backend integration