
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

About CK-12 Foundation
About
Passionate about education?
CK-12 is on the lookout for talented, creative, and dedicated people to join our mission to provide great education to students around the world. We are looking for candidates to join our office at Bangalore.
We have a strong education platform that has served over 200 Million users, have got over 1.45 Billion questions answered and have got more than 285 thousand customised Flexbooks. We have embarked on exciting journey to build AI-powered student tutor and Teacher Assistant to build next generation of learning platform.
About CK-12 Foundation
CK-12’s mission is to provide free access to open-source content and technology tools that empower students as well as teachers to enhance and experiment with different learning styles, resources, levels of competence, and circumstances.
To achieve this noble and ambitious vision, we at CK-12 are challenging traditional model of education to transform it dramatically. Technology has opened up lots of opportunities to revolutionize education for the benefit of students, teachers and parents.
We have chosen to be non-profit so that we can effectively realize our mission and so that we can do the right thing! It also provides us the ability to experiment big and bold ideas. CK-12 is backed by Vinod Khosla, a renowned technology venture capitalist.
At CK-12, you’ll experience the benefits of working in a dynamic, entrepreneurial, innovative and non bureaucratic environment where you will get a lot of cool things done than you ever imagined! We are a small group of passionate folks who are determined to disrupt the current form of education. We came together from companies such as Apple, eBay, Amazon, McGraw-Hill, and startups.
Technology is key to scale education and we deeply believe in it. Come develop great solutions on our cloud based (AWS) and AI-first platform delivering rich and interactive content.
Does our mission, people and technologies excite you? If the answer is YES! and you are a great technologist who will challenge status-quo (no order takers please!) by innovating, please come join us! Together, we will change the world!
Check out how CK-12 is making an impact in teaching and learning - https://www.ck12info.org/about/testimonials/
Flexi, our AI-powered Student Tutor - https://www.ck12.org/pages/student-tutor/
AI-powered Teacher Assistant - https://www.ck12.org/pages/teacher-assistant/
Benefits: Medical and Accident Insurance, Free food orders for lunch.
Location: https://goo.gl/maps/NkA2Hr8JhtE3raWr5
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We are a Series A funded startup backed by Amazing Investors like Y Combinator, GSV Ventures, and Matrix Partners.
What will you do
● Work as part of a small team, which will include AntWak tech team of React Native developers, a project manager, QA professional, and a designer to build React Native iOS / Android application
● Architect, build and maintain excellent React Native applications with clean code.
● Implement pixel perfect UI's that match designs.
● Implement clean, modern, smooth animations and transitions that provide an excellent user experience.
● Integrate third-party API's.
● Write unit and integration tests and work with native modules when required.
● Release applications to IOS and Google Play stores.
● Complete one or two week sprints and participate in sprint retrospectives and daily standups.
● Assist with building estimates.
What skills do you need?
● 2+ years of professional experience working with React Native.
● 4+ years of professional software development experience.
● Experience working with Swift, Objective C, and Java a plus but not required.
● Meaningful experience working on large, complex systems.
● An understanding of React Native best practices and a commitment to following them.
● Ability to work through new and difficult React Native issues and contribute to libraries as needed.
● Ability to create and maintain continuous integration and delivery of React Native applications.
● Should have good experience of REST API and graphQL integration
● Should have experience of working in Redux-React based environment
● Best to have working experience of NEXT Js and React with Typescript.
● You’re passionate about software development.You’re constantly striving to learn new things and improve. You follow industry news, regularly thinker with new technologies, and read books and blogs to keep your skills current.
Why you will love to work with us
We’re a medium-sized tech team that’s growing fast, so everyone that joins has a direct impact on the
direction and success of the company. Today’s hires will be tomorrow’s leaders. We strive for an open, flat, collaborative, work-hard play-hard environment.We offer competitive compensation with health insurance.
We are looking for a React Native developer interested in building performant mobile apps on both the iOS and Android platforms. You will be responsible for architecting and building these applications, 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
- Build pixel-perfect, buttery smooth UIs across both mobile platforms.
- Leverage native APIs for deep integrations with both platforms.
- Diagnose and fix bugs and performance bottlenecks for performance that feels native.
- Reach out to the open source community to encourage and help implement mission-critical software fixes—React Native moves fast and often breaks things.
- Maintain code and write automated tests to ensure the product is of the highest quality.
- Transition existing React web apps to React Native.
Skills
- Firm grasp of the JavaScript (and TypeScript or ClojureScript) language and its nuances, including ES6+ syntax
- Knowledge of (functional or object-oriented) programming
- Ability to write well-documented, clean Javascript code
- 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
- Experience with automated testing suites, like (Jest or Mocha)
We are looking for a React Native developer interested in building performant mobile apps on both the iOS and Android platforms. You will be responsible for architecting and building these applications, 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 :
- Build pixel-perfect, buttery smooth UIs across both mobile platforms.
- Leverage native APIs for deep integrations with both platforms.
- Diagnose and fix bugs and performance bottlenecks for performance that feels native.
- Reach out to the open source community to encourage and help implement mission-critical software fixes—React Native moves fast and often breaks things.
- Maintain code and write automated tests to ensure the product is of the highest quality.
- Transition existing React web apps to React Native.
iOS Developer responsibilities include:
- Design and build applications for the iOS platform
- Ensure the performance, quality, and responsiveness of applications
- Collaborate with a team to define, design, and ship new features
- Identify and correct bottlenecks and fix bugs
- Help maintain code quality, organization, and automatization
- Experience with iOS frameworks such as Swift UI, Objective C,
- UIKit, AVFoundation, Core Bluetooth, Combine, PushNotifications.
- Experience with Databases - Core Data, Realm
- Familiarity with RESTful APIs to connect iOS applications to back-end services
- Knowledge of Architecture - MVC and MVVM
- Understanding of Apple’s design principles and interface guidelines
- Excellent communication Skills and Client interaction.
Lead/Principal Engineer – Android
Description
We are looking for talented engineers who are passionate about using software engineering to make kids love to learn and redefine learning@home at BYJU’S. You will have an opportunity to work in a highly motivated fast-paced environment in a fastest-growing Ed-Tech company. You will be building platforms and services to be used across various products. You will have the opportunity to create a significant impact on our systems, our business and most importantly on the life of millions of our students as we take on challenges that will reshape the education industry. You will operate at the intersection of diverse disciplines - Backend, Frontend, Big Data, ML, Computer vision and Multiple programming languages. You will build solutions for Byju’s core learning Apps, co-branded platforms, new launches, product development & innovations and personalized learning experiences.
We are looking for smart people with excellent technical skills and a can-do attitude. Candidates should be eager to learn, flexible to pivot when needed, savvy enough to thrive in a dynamic environment and should possess a growth mindset.
Roles & Responsibilities
- Leads more than one projects end-to-end and collaborates across functions. Drives planning, estimation and execution.
- Manages stakeholder expectations and offers scalable, reliable, performant and easy to maintain solutions.
- Consistently takes well thought technical/design decisions.
- Develops expertise in more than one area and shares knowledge with others. Able to mentor/train people in areas which are new to them.
- Drives people to solve engineering challenges.
- Enjoys high respect of Tech and other cross functional teams.
- Demonstrates effective communication with project team, management and internal/external clients as necessary.
- Surfaces both technical and non-technical team challenges and helps resolve them.
- Champion for SDLC best practices and high-quality standards.
- Significantly contributes in hiring high performance candidates.
Ideal Candidate Profile
- Expert in JAVA, Kotlin, Reactive programming, Asynchronous programming and Dependency Injection. Experience with unit-tests and automation frameworks.
- Familiarity with any architectures like MV*(MVP/MVVM/MVI).
- Strong focus on high-quality mobile UI experiences.
- Operates independently with almost no oversight.
- Is able to apply domain expertise to think critically and make wise decisions for the team, taking into account tradeoffs and constraints.
- Communicates tech decisions through design docs and tech talks.
- Has delivered multiple projects with end-to-end engineering ownership.
- Keeps track of new technology/tools and embraces them as necessary
- 7+ years of experience in a product-driven organization.
Technologies we're working with
- MVP, JAVA and Kotlin, Realm, Firebase Real-time Database, RxJava,Kotlin Coroutines, Dagger and Retrofit.
Note- WFH currently
Lead Engineer -
Responsibilities:
- Leads a project end-to-end and collaborates across functions. Drives planning, estimation and execution.
- Understands requirements well and comes up with efficient design
- Develops complex, well backed and bug-free products. Estimates accurately.
- Takes well-reasoned tech decisions keeping in mind goals and trade-offs
- Becomes a go-to person in more than one area. Provide technical mentoring to team
- Communicates clearly, gets clarifications and establishes expectations for all parties
- Helps establish SDLC best practices and high standards of code quality
- Demonstrates excellent problem solving & debugging skills
- Proactively identifies and resolves issues in requirements, design and code
- Perform peer code reviews and help us all get better.
Requirements:
- Solid experience in JAVA and Kotlin.
- Should have experience in Reactive programming, Asynchronous programming and Unit Testing.
- Has an ability to quickly learn and contribute in multiple codebase.
- Overcomes roadblocks and requires minimal oversight
- Takes initiatives to fix issues/tech debts before assigned to him/her.
- Able to deep dive into codebase and advise QA of possible regression impact.
- Communicates tech decisions through design docs and tech talks.
- Has delivered projects with end-to-end accountability.
- Keeps track of industry trends and introduces right tech/tools for a given job.
- Excellent understanding of software engineering practices, Design Patterns, Data Structures, Algorithms.
- 5+ years of experience in a product-driven organisation.
Desired Candidate Profile
- 2+ years of work experience in consumer-facing high traffic (millions of concurrent users) mobile applications with a desire to work in growing fast-paced startups.
- Worked on applications from scratch. Well-versed with building apps for various screen densities and sizes.
- Up to date on upcoming trends in android and its ecosystem with respect to design, architecture, etc.
- Experience in optimizing all important parameters like network utilization, application size, and battery.
- Experience with kotlin, coroutines, dagger, retrofit, Rx-android, and android architecture components, etc.
- Should have used mock frameworks, modular code design, and popular design patterns.
Roles and Responsibilities
- Good grasp of algorithms, design patterns, memory management, and multithreaded programming.
- Experience with SAAS platforms for mobile development like Analytics, Push Notifications, Cloud Storage, Ad Networks, etc.
- Hands-on experience with Android's debugging, unit-testing, memory, and performance optimization tools.
- Experienced in databases like SQLite, ROOM DB.
- Experience in using Device hardware integrations like GPS, Camera, etc.
- Experience with performance and memory tuning with tools.
- Knowledge of engineering practices like CI-CD.
- Strong communication and team collaboration skills.
- Experience in iterative development methodologies like Agile.
KeepTruckin is on a mission to modernize the trucking industry. With the leading fleet management platform, we are bringing trucks online and fundamentally changing the way freight is moved on our roads.We see our hard work rewarded in tangible ways every day and we believe that intelligence is most powerful when paired with humility. We're motivated by the opportunity to impact and improve every facet of a trillion-dollar industry that touches everyone's lives. KeepTruckin is proud to be a Forbes Cloud 100 company, a 2020 Career-Launching Company by Wealthfront and named a Forbes Best Startup Employer 2020.About the
Role:
As one of our first mobile engineers in Bangalore, this is a great opportunity to make a significant impact in designing and building our new KeepTruckin Fleet Manager Android app and as well as grow by working directly with experienced technology professionals with backgrounds from Silicon Valley companies like Google, Twitter, Facebook and Uber (to name a few). We are looking for candidates who have a familiarity with Java and Kotlin, and a good understanding of system architectures (MVC, MVVM, Redux) and a forward thinking mindset aimed at high readability (declarative) code, as well as identifying problems or bottlenecks before they become issues.
What You'll Do:
Develop from scratch our new Android KeepTruckin Fleet Manager AppWork with product team to refine feature specs, and work with cross functional teams like IoT, Embedded, Data Science/ML, Computer Vision & Motion teams to create fluid user experiences with interactive visualization for a multitude of data from these different teamsCommunicate with backend engineers about API requirements or refinements, and engage with the senior engineers for mentorship to learn & grow in your areas of interestAnalyze our user's data to identify bugs, and help support team to diagnose user problemsBe able to work as part of a small, tightly knit team
What We're Looking For:
2-4 years of experience working on Android apps with a deep understanding of Android SDKsProficiency in Java, Kotlin, Android lifecycle, custom views, database/persistenceAn understanding of Android UI/UX and application design paradigms. An appreciation and understanding of automated app testingKnowledge in RxJava2, Dagger2, and knowledge or interest in commercial vehicles/trucking is a plus!
Creating a diverse and inclusive workplace is one of KeepTruckin's core values. We are an equal opportunity employer and welcome people of different backgrounds, experiences, abilities and perspectives.Please review our Candidate Privacy Notice here. ( https://drive.google.com/file/d/1Xs7GivrHCj05XC6-mn6MsRGG3V5AcgZ5/view?usp=sharing )
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Strong knowledge of Android SDK, different versions of Android, and how to deal with different screen sizes
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Strong knowledge of Android UI design principles, patterns and MVP architecture
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Ability to create custom interactions with ViewGroups
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Experience with offline storage, threading, and performance tuning
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Experience in AR or react native
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Knack for benchmarking and optimization
- Proficient understanding of code versioning tools, such as Git
Experience in RxJava, Kotlin development, Android Studio, Material Design, MVC/MVP/MVVM and RxAndroid (is a plus)






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