Android Developer - Software Engineer

We are looking for a Senior Frontend / Mobile App Engineer with deep expertise in React Native and/or Flutter, strong frontend fundamentals, and a product mindset. You will play a key role in designing and building high-quality, scalable, and performant mobile applications used by millions of learners worldwide.

This role requires hands-on ownership, architectural thinking, and the ability to collaborate closely with product, design, and backend teams in a fast-moving, AI-first environment.

Key Responsibilities:

• Lead the design and development of high-performance mobile applications using React Native and/or Flutter
• Build intuitive, engaging, and accessible user experiences across Android and iOS
• Own features end-to-end—from concept and design to development, testing, and production release
• Define and drive frontend/mobile architecture, patterns, and best practices
• Ensure excellent app performance, responsiveness, and reliability at scale
• Collaborate with backend teams to integrate APIs and AI-powered services
• Mentor junior engineers and contribute to code reviews and design discussions
• Continuously evaluate and adopt new tools, frameworks, and patterns to improve product quality
• Work in an Agile environment with rapid iterations and frequent releases

Required Qualifications

• Bachelor’s or Master’s degree in Computer Science or equivalent
• 6+ years of overall frontend/mobile development experience
• Strong hands-on experience with React Native and/or Flutter in production-grade apps
• Deep understanding of JavaScript / TypeScript, mobile UI frameworks, and app architecture
• Strong knowledge of CS fundamentals, data structures, and algorithms
• Experience building scalable, maintainable, and testable codebases
• Solid understanding of mobile performance optimization, memory management, and rendering
• Experience working with RESTful APIs and modern backend integrations
• Proficiency with Git and modern build / CI tools
• Strong problem-solving skills and product-oriented thinking

Why Join CK-12?

• Work on products impacting hundreds of millions of learners globally
• Be part of a non-profit, mission-first organization
• Build cutting-edge AI-powered learning platforms
• High ownership, low bureaucracy, and freedom to innovate

Android Services, System service and framework development, Broadcast using Java, Kotlin, C++ (Mandatory)

Experience in AOSP build setup & understanding of Android.bp, gradle, Android.mk (Mandatory)

IPC mechanism in Android: AIDL, JNI, HIDL, Socket Communication (Mandatory)

Experience in Android application development using Java & Kotlin (Mandatory)

Custom UI component development & understanding of MVVM architecture (Mandatory)

Flexible in customizing AOSP for product branding (Good to have)

RESTful service integration, Multithreading ,Message queueing (Good to have)

What does the core role include?

• Designing and developing high-volume, low-latency applications for mission-critical systems and delivering high-availability and performance
• Designing stateless components in React Native
• Contributing in all phases of the development lifecycle
• Working with the developers to create and maintain a robust framework to support the apps
• Working with the developers to build the interface with a focus on usability features

What else can you expect in the role?

• Prepare and produce releases of software components
• Optimizing performance for the apps
• Problem-solving skills, analytical mind, and positive attitude
• Ability to think from end users perspective and focused on improving the overall product experience.
• Deliver across the entire app life cycle concept, design, build, deploy, test, release to app stores and support

What can fetch you brownie points?

• Hands on experience with React Native is required
• Hands-on experience in React Native APIs, ReactJS, Javascript, ECMAScript (OOJS) and JSX.
• Strong understanding of JavaScript ecosystem
• Hands on experience on Android in creating Hybrid / Native applications
• Demonstrable UI/UX experience on a large-scale app.
• Thorough understanding of React Native development tools like IDEs (Nuclide, Atom, Sublime Text, or Visual
• Good knowledge of JS frameworks like ReactJS is a plus.
• Desired Skills and Experience
• Hybrid Apps,React Native, Native iOS and Android Architecture understanding

Responsibilities

• Lead the app team to develop apps using Flutter for both Android & iOS platforms.
• Implement best practices for app development, usage tracking, and issue fixes.
• Do regular code reviews to ensure code quality.
• Be an individual contributor to write quality code that is simple, reliable, and scalable.
• Implement test-driven development.
• Ensure the best performance and user experience of the application.
• Work with the team to manage, optimize, and customize multiple applications.
• Evaluate and implement out-of-the-box ideas for application development.

Required Skills

• Must have 8+ years of experience in native mobile development (Android / iOS).
• Must have 2+ years of experience in Flutter with Dart.
• Must have worked and successfully deployed apps on play-store/app-store using Flutter.
• Experience with any of the state management solutions like Bloc, Provider, Mobx, etc.
• Extreme attention to detail and the ability to match the design as closely as possible.

Job Perks

• Get to work with a highly passionate team of engineers.
• Open and embracing culture towards the latest hot technologies.
• A high level of freedom & responsibility.
  
  

• The main roles and responsibilities would be:
• Deliver high quality mobile apps on Android platforms.
• Create best practice, drive initiatives to build reusable frameworks, components and solutions.
• Engage with the team to create a knowledge centre on Android.
• Minimum experience of 1 years needed. Ideally more than 2 years.
• Maps based apps.
• Payment gateway integration: (PayPal, Stripe, Paytm etc).
• Integration of webservices
• Marketplace apps
• Live Streaming
• Offline application development.
• Strong OO design and programming skills in Java
• Android SDK
• JSON/REST API
• Social Media APIs
• UML/Design Pattern
• Knowledge of Retrofit,Volley,Dagger2,Realm,RxJava,Espresso
• Knowledge of android architecture component(LiveData etc).
• Working Experience on MMVM and MVP architecture
• Experience in SQL and NOSQL databases.
• Familiarity with cloud message APIs and push notifications 
• Understanding of Googles Android design principles and interface guidelines 
• Proficient understanding of code versioning tools, such as Git.
• Work closely with the leadership team to define roadmap and development plans
• Help define and implement standards and promote best practices for the Android development team
• Tackle daily challenges with your creative problem solving recommendations
• Mentor and contribute knowledge to the rest of the team and the organization
• Strong knowledge of Android UI design principles, patterns, and best practices
• Experience with threading, and performance tuning
• Ability to understand business requirements and translate them into technical requirements