
Looking for a React Native Mobile App Developer, comfortable with MERN stack, interested in working to improve and evolve a novel social fitness mobile app!
We need frontend integration, testing, and debugging proficiency only - the tech stack mentioned is the backend you will have access to.
You should consider Fettle for:
1. A flexible, reasonable working style. Your hours don't matter as much as your output
2. An all-hands startup experience, driven to learn, grow, and deliver, constantly
3. The exposure to engage in the firm's strategy, in decisions key to your workstreams
All we expect is elegance in building and maintaining code, and the hunger to leave as much of your signature on them as possible.
Tech Stack: React Native, Node.js, Express and MongoDB
Start date: Immediate

About Fettle
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What You’ll Do:
● Develop and maintain cross-platform mobile applications using React Native (Flutter experience is a plus).
● Handle end-to-end app deployment: build, register, and release applications on Google Play Store and Apple App Store.
● Collaborate with product managers and designers to deliver high-quality UI/UX.
● Work on web application tasks as needed, including front-end (React.js preferred) or minor backend integration.
● Debug, optimize, and continuously improve app performance and scalability.
● Write clean, maintainable, and well-documented code.
What We’re Looking For:
● Minimum 2 years of professional experience in React Native development.
● Exposure to Flutter is a plus.
● Proven experience in publishing apps to both Android and iOS stores, including certificates, provisioning profiles, app review process.
● Basic knowledge of web technologies (HTML/CSS, JavaScript, React.js or similar).
● Familiarity with REST APIs, Git, and common dev tools.
● Strong problem-solving skills and a collaborative mindset.
Nice to Have
● Experience with Firebase, push notifications, analytics, or payment integration.
● CI/CD knowledge for mobile deployment.
● Backend development familiarity (Node.js, FastAPI, or similar).
Must-haves:
- You need to be excited about the problem that we are trying to solve
- 4+ years of experience building applications in React Native
- Build pixel-perfect, buttery smooth UIs across both mobile platforms.
- Strong Js fundamentals
- Built an iOS app from scratch or Native Android development experience
- Ability to give clarity and communicate well with the team, including Product, Backend and Dev-Ops (if and when needed)
- Ability to use profiling tools well, getting to root causes of bugs fast
- Ability to pick and work on adjacent technologies if and when required (Eg: If the best performance monitoring solution needs a basic firebase setup, that should not be a blocker for you to go ahead and do so)
- Maintain code and write automated tests to ensure the product is of the highest quality.
- Reach out to the open-source community to encourage and help implement mission-critical software fixes—React Native moves fast and often breaks things.
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You need to be comfortable working in a remote environment (Good internet connection and availability on phone is required)
Good to have:
- Experience with next.js
- Experience in Test Driven Development
- Ability to tell Product what creates better User Experience, ability to tell backend what API responses will help the user get a faster load time
- Inquisitiveness to understand the system as a whole, and not only be stuck to your domain of expertise (Eg: Asking questions like why does this particular response take so much time as compared to others, and brainstorming with the backend engineer on how to improve on it)
Benefits
- Work timings - You are the master of your time. However, with great freedom comes great responsibility. If you have committed something to the team, we expect that you will give it your best to make sure that commitment is done and is done on time.
- Leave policy - Take a leave whenever for whatever reason you want. You don't need to explain yourself to us
- Health insurance for you and your family
Your Key Responsibilities
You'll be taking full ownership of end-to-end app development along with
maintaining our accounts on Play Stores and App Store.
Defining the architecture for the App and maintaining it with industry standards.
Improving app performance along with an amazing customer experience.
Working closely with the product team to create a useful application for the
customers.
Prototyping new features and exploring technological solutions to deliver an
amazing experience.
Leverage native APIs for deep integrations.
Maintain code and write automated tests to ensure the product is of the highest
quality.
Recommended skills
3+ years of experience of working with React Native.
Experience with Native Android/IOS native is a plus.
Expertise in Live streaming from mobile app is a plus.
Experience with automated testing suites.
Knowledge about Offline Storage, REST APIs, and document request model.
Experience of working on products similar to Instagram, Moz, Hotstar, Mxtaka,
Roposo, Leherapp, Dailyhunt, etc is an advantage.
Job Title: React Native Mobile Developer ( 4+ years experience)
Are you passionate about shaping the future of technology and being a part of a dynamic team of developers? Do you thrive in challenging and innovative environments, ready to take on the responsibility of spearheading cutting-edge projects? If so, we have an exciting opportunity for you!
Job Description:
We are seeking an experienced React Native Developer with over 4 years of experience to join our dynamic team. The ideal candidate will have a strong background in mobile development, particularly with React Native, and a passion for creating high-quality, scalable applications. You will play a key role in the development and maintenance of our cross-platform mobile applications, ensuring seamless integration with our web solutions and a superior user experience.
Key Responsibilities:
• Mobile Development: Develop, maintain, and optimize React Native applications for both iOS and Android platforms.
• Integration: Work closely with back-end developers to integrate mobile applications with APIs and other services.
• Collaboration: Collaborate with cross-functional teams, including UI/UX designers, product managers, and other developers, to deliver a cohesive product experience.
• Performance Optimization: Ensure the performance, quality, and responsiveness of applications by identifying bottlenecks and implementing solutions.
• Code Reviews: Conduct code reviews and ensure adherence to coding standards, best practices, and company guidelines.
• Testing: Write and maintain unit and integration tests to ensure the reliability and robustness of the application.
• Documentation: Create and maintain technical documentation for code and APIs.
• Stay Updated: Keep up with the latest industry trends and technologies, and continuously improve the development process.
Qualifications:
• Education: Bachelor's degree in Computer Science, Software Engineering, or a related field (or equivalent work experience)
• Experience: 4+ years of experience in mobile development, with at least 3 years of hands-on experience with React Native.
• Skills: Proficiency in JavaScript and strong experience with React Native, including working with state management libraries (such as Redux or MobX) and navigation libraries.
• Platform Knowledge: Solid understanding of mobile development for both iOS and Android, including platform-specific considerations.
• Performance: Experience with performance optimization techniques for mobile applications.
• Version Control: Familiarity with version control systems (e.g., Git).
• Collaboration: Ability to work effectively in a team environment and communicate technical concepts to non-technical stakeholders.
• Problem-Solving: Strong problem-solving skills and attention to detail.
Preferred Skills:
• TypeScript: Experience with TypeScript for type safety and better code maintainability.
• UI/UX Understanding: Familiarity with UI/UX design principles and ability to collaborate effectively with designers.
• Back-End Knowledge: Basic understanding of back-end technologies and APIs to facilitate seamless integration.
• Testing Frameworks: Experience with testing frameworks such as Jest or Mocha.
• CI/CD: Knowledge of continuous integration and continuous deployment (CI/CD) pipelines.
• App Store Deployment: Experience with deploying applications to the Apple App Store and Google Play Store.
Bottom-Funnel provides the system and framework that modern marketers need to generate clients from scratch.BOTTOM-FUNNEL is a 360° digital branding and marketing agency that provides a wide spectrum of internet marketing services to enhance the online presence of all kinds of businesses. We offer global solutions of digital marketing and all IT trending technology solutions, communication through classifieds, web portals, social media networks, advertising channels, and search engines. Our digital experts and business consultants help clients by providing only the best digital marketing strategy to develop through innovation and creativity.
Employment Type: Employee - Full Time
Work Location: Jaipur, Rajasthan ( Work From Office Only)
Notice Period : Immediate - 15 Days 30 Days only
Job Summary
An Android developer is responsible for developing applications for devices powered by the Android operating system. Due to the fragmentation of this ecosystem, an Android developer must pay special attention to the application’s compatibility with multiple versions of Android and device types. They must also have a strong understanding of the patterns and practices that revolve around such a platform.
Responsibilities
• Design, build and maintain high performance, reusable, and reliable Kotlin code.
• Ensure the best possible performance, quality, and responsiveness of the application. Help maintain code quality and automatization.
• Should be familiar with architectural patterns like MVP, MVVM, MVC.
• Strong knowledge of Android SDK, different versions of Android, and how to deal with different screen sizes.
• Familiarity with RESTful APIs to connect Android applications to back-end services.
• Strong knowledge of Android UI design principles, patterns, and best practices
• Experience with offline storage, threading, and performance tuning
• Knowledge of the open-source Android ecosystem and the libraries available for common tasks
• Build lightweight, low latent Android applications with limited or no dependency on third-party modules.
• Unit-test code for robustness, including edge cases, usability, and general reliability
Must Have:
Exposure to Kotlin, RxJava / LiveData / Coroutines, Caching & Database
Good to Have:
• Minimum of 2+ years of experience in Java
• Strong knowledge of Android SDK, different versions of Android, and how to deal with different screen sizes
• Familiarity with RESTful APIs to connect Android applications to back-end services
• Strong knowledge of Android UI design principles, patterns, and best practices
• Camera APIs, Exoplayer, Profiling & Performance Tuning, Unit Testing.
• Design and build applications for Android devices.
• Maintain quality and ensure responsiveness of applications.
• Collaborate with the rest of the engineering team to design and launch new features.
• Maintain code integrity and organization.
• Be proficient with Java and Kotlin.
• Experience with offline storage, threading, and performance tuning.
• Must be familiar with RESTful APIs to connect android applications to back-end services.
• Experience with cloud message APIs and usage of push notifications.
• Knowledge of Git.
Qualifications
• Minimum 2 Years of experience in building Android Apps using
• Strong knowledge of Android SDK
• Familiarity with cloud message APIs and push notifications.
• Proficient understanding of code versioning tools such as Git, SVN, bit bucket
• Experience detecting and correcting memory usage issues as well as optimizing code for application performance
• Unit-test code for robustness, including edge cases, usability, and high reliability
• Work with modern tools including Jira, Slack, GitHub, Google Docs, etc
• Rock solid at working with third-party dependencies and debugging dependency conflicts
• Experience with task planning and estimating effort
• Strong collaborator and comfortable to work in an agile, remote and distributed team environment
Benefits :
- Opportunity to work on highly challenging international projects.
- Opportunity to travel & work with International clients.
- Flexible and friendly work environment
- Great organisational culture, focus on employee's well-being.
- Work-life balance.
- Be part of the best place to work for certified company
About the company
Credit cards haven't changed much for over half a century so our team of seasoned bankers, technologists, and designers set out to redefine the credit card for you - the consumer. The result is OneCard - a credit card reimagined for the mobile generation. OneCard is India's best metal credit card built with full-stack tech. It is backed by the principles of simplicity, transparency, and giving back control to the user.
The Engineering Challenge
“Re-imaging credit and payments from First Principles”
Payments is an interesting engineering challenge in itself with requirements of low latency, transactional guarantees, security, and high scalability. When we add credit and engagement into the mix, the challenge becomes even more interesting with underwriting and recommendation algorithms working on large data sets. We have eliminated the current call center, sales agent, and SMS-based processes with a mobile app that puts the customers in complete control. To stay agile, the entire stack is built on the cloud with modern technologies.
Check out our apps here:
OneCard (Best credit card app) : http://www.getonecard.app/">www.getonecard.app
OneScore (5 million downloads): http://www.onescore.app/">www.onescore.app
Senior Software Engineer – Frontend
Create a consumer facing front end application that will be used by millions of users.
What you will do:
- Develop our mobile apps using React Native.
- Work with backend, frontend, and other developers to build out a customer-centric experience that will constantly evolve.
- Work with our designers and customer success team to create a seamless user experience.
- Respond to support team tickets as needed to resolve bugs and issues.
- Participate in contributing ideas, updates, and product development areas to the team.
Experience Range:
3-5 years with technical hands-on experience in building a consumer mobile app. You must have shipped an app to the stores.
Technical Expertise:
- 3-5 years experience Android/iOS native apps or React Native based apps and Web front-end technologies such as React.
- Strong command of JavaScript ES6.
- Know how to build (fairly) complex layouts without using any CSS frameworks.
- Strong problem solving and analytical skills using data structures.
- Comfortable in a fast-paced startup environment.
- Bias for action shipping quality code quickly.
• Strong understanding of Flutter. Experience with other frameworks like React Native,
SwiftUI, Jetpack Compose is acceptable.
• Good knowledge of Rendering engines in Flutter, Browser, iOS, Android
• Experience in CMS such as Sanity, AEM
• Good understanding of RESTful APIs, GraphQL and Web Sockets
• Ability to debug and profile Web/Mobile applications with Chrome DevTools or Native
profilers
• Deep understanding of Reactive programming with libraries like MobX, BloC
• Exposure to SOLID Domain Driven Design, principles
• Exposure to Style Guides, Atomic Design, Design Systems
• Strong visual acumen to detect cosmetic defects ensuring
• Exposure to Design tools like Sketch, Figma, Adobe Creative Suite or Affinity Designer
• Deep knowledge of at least 2 different programming languages from JavaScript, Dart, Ruby,
Python, Go, Rust, Typescript, C#, Kotlin, Java, Haskell, OCaml
• Exceptional verbal and written communication
• A mindset to constantly learn new things and challenge the Status Quo.
Experience
• 8 - 15 years of experience building Front End Applications on different technologies
• At least 5 years of experience building React and/or Mobile Applications
• Preferably worked in the Finance/Retail domain or other similar domains with complex
business requirements.
Education
• Bachelors in Computer Science or equivalent education covering Math, Algorithms, Data
Structures, Networking, Databases, Operating Systems, Graphics
• Nice to have a Post-Graduate degree in Computer Science
Demonstrable Passion
• Contributed to one or more Open Source projects
• Actively maintain one or more Open Source projects
• Blogging on Frontend or related topics
• Authored books, videos on Frontend or other topics
• Speaking engagements at Meetups or Conferences
Job Title: Android Developer with React Native
Job Description:
We are looking for an Android Developer who possesses a passion for pushing mobile technologies to the limits and will work with our team of talented engineers to design and build the next generation of our mobile applications.
Key Responsibilities
- Design and build advanced applications for the Android platform
- Collaborate with cross-functional teams to define, design, and ship new features.
- Work with outside data sources and API's
- Unit-test code for robustness, including edge cases, usability, and general reliability.
- Work on bug fixing and improving application performance.
- Continuously discover, evaluate, and implement new technologies to maximize development efficiency.
Requirements
- B.Tech Computer Science, Engineering or a related subject
- 4+ years of software development experience
- Have published at least one original Android app
- Experience with Android SDK
- Should have minimum 1 year of experience in React Native
- Experience working with remote data via REST and JSON
- Experience with third-party libraries and APIs
- Working knowledge of the general mobile landscape, architectures, trends, and emerging technologies
- Solid understanding of the full mobile development life cycle.
MyScoot is a Y Combinator and VC funded start-up that helps you discover new people at home-hosted social events.
We are looking for an experienced 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.
- Minimum 3 years of experience in a high-quality engineering team at a product startup or MNC
- Bachelor’s degree in computer science, computer engineering or related technical field from a top-tier college
- Proficiency in CS concepts such as data structures and algorithms
- Experience in implementing readable, object oriented code and design patterns
- Understanding of build, deployment, A/B testing of products
- Familiarity with native build tools, like XCode, Gradle, Android Studio, IntelliJ
- Understanding of REST APIs, the document request model, and offline storage
- 1+ years of experience working as a React Native Mobile Developer







