TUBR is working on Innovating Crowd Management on public transport. We are building the state of the art Time series Machine Learning Models to predict the crowds in public transport.
Job Description
We are looking for a React Native developer on a Full time contract basis, who is interested in building performant mobile app on both the iOS and Android platforms aligned with strong Agile Development methodologies. You will be responsible for 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 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
Skills
- Work as part of a small team to build React Native iOS / Android application
- 2+ years of experience in React Native development.
- Firm grasp of the JavaScript language and its nuances, including ES6+ syntax
- 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
- Understanding of REST APIs, the document request model, and offline storage
- Experience with automated testing suites.
- Bachelor’s degree in Computer Science or related fields
- We are looking for a someone who is happy to work in a team or solo but must be confident working independently. (The team will be available to support but pairing won’t always be an option)

About TUBR
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Job Description:
We are looking for a skilled React Native Developer to design, develop, and maintain high-performance cross-platform mobile applications for Android and iOS.
The ideal candidate must have strong command over React Native, TypeScript/JavaScript, and working knowledge of Kotlin (Android) and Swift (iOS) to build and integrate native modules when needed.
You will work closely with backend, design, and product teams to deliver seamless, fast, and stable mobile experiences for the ZestFindz ecosystem.
Key Responsibilities:
- Develop and maintain cross-platform mobile applications using React Native.
- Collaborate with design and product teams to deliver pixel-perfect, responsive UIs.
- Integrate REST APIs / GraphQL and handle authentication, caching, and error states efficiently.
- Implement and manage app state using Redux / Context API / Zustand.
- Optimize app performance, handle animations, memory leaks, and rendering issues.
- Build and integrate native Android (Kotlin) and iOS (Swift) modules where React Native limitations exist.
- Manage offline storage using SQLite / AsyncStorage / MMKV.
- Configure and manage Firebase services - Auth, Firestore, Push Notifications, Analytics.
- Handle deep linking, in-app navigation, and app lifecycle events.
- Deploy apps to Google Play Store and Apple App Store (with signing, provisioning, versioning).
- Work with DevOps to integrate apps into CI/CD pipelines (Fastlane / GitHub Actions / Codemagic).
- Write clean, modular, reusable code with proper documentation and testing.
- Debug, profile, and optimize performance for low-end devices and weak networks.
- Ensure security best practices - secure token storage, environment management, and data encryption.
Must-Have Skills:
- Strong experience in React Native (0.70+) and JavaScript / TypeScript.
- Solid understanding of mobile architecture patterns (MVC, MVVM, Flux).
- Knowledge of Kotlin (Android) and Swift (iOS) for native bridge creation and debugging.
- Experience with React Navigation, Redux / Context API / Zustand, and API integration (Axios / Fetch).
- Familiarity with Firebase, App Permissions, and Push Notifications (FCM/APNS).
- Good understanding of Android Studio, Xcode, Gradle, and Cocoapods.
- Ability to write clean, testable code with unit and integration tests.
- Working experience with Git / GitHub / GitLab CI/CD.
- Problem-solving mindset and ability to debug across full mobile stack.
Good-to-Have Skills (Bonus):
- Knowledge of native SDK integrations (Maps, Camera, Payments, etc.).
- Experience with React Query / GraphQL.
- Familiarity with Fastlane, Crashlytics, App Center, or Sentry.
- Understanding of UX principles and animation libraries (Lottie, Reanimated).
- Experience with OTA updates (CodePush) and App Store Optimization (ASO).
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
Software Development Engineer II (App)
About the company:
At WizCommerce, we’re building the AI Operating System for Wholesale Distribution — transforming how manufacturers, wholesalers, and distributors sell, serve, and scale.
With a growing customer base across North America, WizCommerce helps B2B businesses move beyond disconnected systems and manual processes with an integrated, AI-powered platform.
Our platform brings together everything a wholesale business needs to sell smarter and faster. With WizCommerce, businesses can:
- Take orders easily — whether at a trade show, during customer visits, or online.
- Save hours of manual work by letting AI handle repetitive tasks like order entry or creating product content.
- Offer a modern shopping experience through their own branded online store.
- Access real-time insights on what’s selling, which customers to focus on, and where new opportunities lie.
The wholesale industry is at a turning point — outdated systems and offline workflows can no longer keep up. WizCommerce brings the speed, intelligence, and design quality of modern consumer experiences to the B2B world, helping companies operate more efficiently and profitably.
Backed by leading global investors including Peak XV Partners (formerly Sequoia Capital India), Z47 (formerly Matrix Partners), Blume Ventures, and Alpha Wave Global, we’re rapidly scaling and redefining how wholesale and distribution businesses sell and grow.
If you want to be part of a fast-growing team that’s disrupting a $20 trillion global industry, WizCommerce is the place to be.
Read more about us in Economic Times, The Morning Star, YourStory, or on our website!
Founders:
Divyaanshu Makkar (Co-founder, CEO)
Vikas Garg (Co-founder, CCO)
Job Description:
Role & Responsibilities:
- Architect and oversee the development of our mobile application using React Native, ensuring high-quality code, performance, and user experience.
- Collaborate closely with Product Managers, Designers, and other stakeholders to understand requirements and translate them into technical specifications and deliverables.
- Drive the end-to-end software development lifecycle, including planning, estimation, execution, and delivery of mobile app projects.
- Take ownership of technical decisions, code reviews, and ensure best practices are followed in the team.
- Provide technical mentorship to engineers, promoting their professional growth and skill development.
- Stay up-to-date with industry trends, emerging technologies, and best practices in mobile app development to drive continuous improvement and innovation.
Requirements:
- Solid experience in mobile app development using React Native, with a proven track record of successfully delivering high-quality mobile applications.
- 3-4 years of experience with mobile app development with React Native or web development with React
- Strong understanding of software development methodologies, architecture, and design patterns.
- Excellent verbal and written communication skills, with the ability to effectively interact with cross-functional teams and stakeholders.
- Strong problem-solving skills and the ability to make strategic and technical decisions.
- Experience with B2B SaaS products or similar industries is a plus.
Benefits:
- Opportunity to work in a fast-paced, growing B2B SaaS company.
- Collaborative and innovative work environment.
- Competitive salary and benefits package.
- Growth and professional development opportunities.
- Flexible working hours to accommodate your schedule.
Compensation: Best in the industry
Role location: Bengaluru/Gurugram
Website Link: https://www.wizcommerce.com/
Key Responsibilities
Developing new features and user interfaces from wireframe models.
Ensuring the best performance and user experience of the application.
Fixing bugs and performance problems.
Writing clean, readable, and testable code.
Cooperating with back-end developers, designers, and the rest of the team to deliver well-architected and high-quality solutions.
Key Skills
1. Extensive knowledge of mobile app development. This includes the whole process, from the first line of code to publishing in the store(s).
2. Deep knowledge of mobile platforms on which the app runs, e.g., Android, iOS etc.
3. Proficient in HTML, CSS, Javascript, React, React Native, Node whichever language you use in the app.
4. Proficiency with writing automated tests in JUnit, Espresso, Mocha, Jest, Enzyme, XCTest, etc. depending on the libraries you use to test
5. Familiarity with RESTful APIs and mobile libraries for networking.
6. Familiarity with the JSON format.
7. Experience with profiling and debugging mobile applications.
8. Strong knowledge of architectural patterns—MVP, MVC, MVVM, and Clean Architecture—and the ability to choose the best solution for the app.
9. Familiarity with Git and Github.
10. Familiarity with push notifications.
11. Understanding mobile app design guidelines on each platform and being aware of their differences.
About the Role:
Rippling is looking for a Senior Mobile Engineer (React Native) who is motivated to combine the art of design with the art of programming. Responsibilities will include translation of the UI/UX design wireframes to actual code that will produce visual elements of the mobile application.
You will build and scale multiple areas of our mobile application. To begin with —you will be responsible for building out the new product features in the mobile app and owning the deliverables.
You will:
- Develop new user-facing features
- Build reusable code and libraries for future use
- Ensure the technical feasibility of UI designs
- Optimize application for maximum speed and scalability
- Have horizontal leadership - driving initiatives via community sync-ups or work on more "zoomed-out"and more long term projects that will move the needle in the long run.
Qualifications:
- 3+ years experience in mobile engineering roles including leadership roles.
- 1+ years of experience in React Native development
- Development expertise in either Android or iOS native platform
- Proficient understanding of JS fundamentals
- Experience working in a fast paced, dynamic environment
- Good interpersonal skills
If you don’t meet all of the requirements listed here, we still encourage you to apply. No job description is perfect, and we might find an even more suitable opportunity that matches your skills and experience.

Description
- Hands on experience in native iOS development for at least 3 years.
- Hands on experience in React, React Native, Redux, ES7, Axios, ECMAScript (OOJS) and JSX, Native bridging & HTML5.
- Experience with offline storage, threading, and performance tuning.
- Excellent HTML, CSS knowledge.
- Hands-on Redux/Flux Architecture.
- Strong understanding of JavaScript ecosystem.
- Solid understanding of the full mobile development life cycle.
- Hands on experience on Android in creating Hybrid apps is an added advantage.
Job Type: Full-time
We’re currently looking for rockstar developers to help us build a next-gen social audio community engagement platform. Avalon is hiring for both backend & frontend engineering roles. Our tech stack is majorly Ruby on Rails & React Native.
If you were looking for a rocket-ship, this is it!
As a senior front-end developer our primary requirement is that you are proficient in React Native.
Apart from that the job entails:
- Building new features (while squashing bugs) for our growing mobile app to extend device support especially across the Android ecosystem
- Architect elegant and maintainable code with support from the team
- Collaborate with design, data, and other teams to build beautiful interfaces that look great and run smoothly
- Guide and improve the technical direction of mobile, bolstering the technical foundational, improving performance, and re-architecting.
Job Description:
1. Capability to develop highly responsive mobile applications (iOS & Android).
2. Designing state-less components in React Native. State management with any of Redux, mobX or Flux.
3. Hands-on experience on Redux.
4. Writing modular, reusable, maintainable, well documented, and fully tested code.
5. Understanding of native build tools like Gradle, Android Studio, XCode etc.
6. Should be passionate about UI / UX of a product.
7. Capability to maintain code that is easy to understand.
8. Write tests for automation so that the app can be tested easily.
9. Capability to take advantage of native APIs for deep integration of all platforms.
10. Build pixel-perfect, buttery smooth UIs across both mobile platforms.
11. Leverage native APIs for deep integrations with both platforms.
12. Diagnose and fix bugs and performance bottlenecks for performance that feels native.
13. Reach out to the open source community to encourage and help implement mission-critical software fixes.
14. Transition existing React web apps to React Native.
Location: Mohali, Gurugram, Bangalore, Chennai, Pune.
What is the Job like?
- Architect super configurable mobile SDKs - the one’s which are written in native but are server-controlled
- Build a suite of Mobile Backend services which will control the SDK distribution and mobile configurations
- Fantasy the idea of composing a mobile application from different components rather than build every application from scratch
- Expertise in security - cryptography, encrypted secure storage, mobile security to power our super-secure payments originating from mobile devices
- Work on a framework to let mobile developers build their mobile screens on multiple stacks - native, server-driven, web, react-native, flutter, ionic etc.
Who should apply?
- Bachelor’s/Master’s degree in engineering (computer science, information systems)
- 8+ years of experience building enterprise systems including at least 2 years of direct people management experience
- Worked on large scale mobile applications with a good understanding of mobile stack
- Good understanding of server stack as well so as to have a good understanding of the entire story
- Good understanding of SDK distribution using maven, pods, xcframeworks etc
- Analyse, design and architect, develop and maintain software solutions across multiple projects
- Direct and provide ongoing leadership for a team of individual contributors, set objectives, review performances, define growth plan and nurture.
- Drive best practices, and is a pro with agile methodologies/practices - SCRUM, Test Driven Development (TDD)
- Manage headcount, deliverables, schedules across ongoing projects, ensure that resources are appropriately allocated and timelines are met in accordance with the project roadmaps









