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)

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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
Winlancers Technologies in search of Reactnative developer for Indore location .
- Building user-friendly IOS and Android apps on React Native Platfrom.
- proficient in Coding debugging.
- Collaborate with cross - functional terms to define and design new features .
- Work on bug fixing and improving applications performance.
- Hands on experience in optimizing code for application performance.
- Ability to deliver projects on time by satisfying clients needs .
- Wiriting modular , resuable, maintainable , well documented and fully tested code.
Experience : minimum 6 months
Salary : No bar for deserving candidate
2 & 4 Saturdays would be fixed off .
Job Title: Senior React Native Developer
Location: Bangalore / Noida
Employment Type: Full-Time Job
Description: As a Senior React Native Developer, you will be responsible for architecting, building, and maintaining high-quality mobile applications. You will collaborate with cross functional teams to deliver solutions that align with the overall product architecture, ensuring smooth integration across different layers of the infrastructure. You will play a key role in the end to-end development process, from concept to deployment, while maintaining the highest standards of code quality.
Key Responsibilities: -
- Take ownership of the entire development lifecycle including analysis, functional decomposition, modelling, prototyping, code review, testing, deployment, and reporting for project deliverables.
- Maintain and optimize code while writing automated tests to ensure product quality and performance.
- Ensure timely and high-quality delivery of product releases.
- Provide accurate technical effort estimates to assist in project planning and resource allocation.
- Participate in the technical recruitment process as part of the interview panel.
- Collaborate with clients, senior business leaders, and technology teams to ensure effective communication and project alignment.
Required Skills & Experience:
- 5 - 8 years of experience in mobile application development.
- 4+ years of hands-on experience developing with React Native.
- Strong proficiency in JavaScript (ES6), React Native, CSS, and JSON.
- Familiarity with Java and experience with both Android and iOS platforms.
- Solid understanding of the mobile ecosystem, including performance optimization and monitoring.
- Deep knowledge of Native Components, Core Components, and React Native libraries.
- Experience building scalable mobile apps, with an understanding of mobile architecture and best practices.
- Expertise in debugging, root cause analysis (RCA), and problem-solving.
- Ability to multitask effectively, manage deadlines, and work under pressure.
- Strong analytical thinking, and confidence in engaging with clients and senior stakeholders.
Preferred Qualifications:
- Experience working in agile development environments.
- Familiarity with CI/CD pipelines and version control systems (e.g., Git).
- Knowledge of mobile performance optimization techniques. Mandatory Skills:
- React Native, JavaScript (ES6), CSS, Android/iOS Development.
JOB DESCRIPTION
React Native Developer
It is a platform for creators, influencers and celebrities to grow, manage and monetise their community. It is aimed at both established and aspiring online creators who want to pursue their passion. Our vision is to enable anyone and everyone to make a successful living doing what they enjoy.
- Roles & Responsibilities:-
- 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.
- Release applications to IOS and Google Play stores.
- Work with native modules when required.
- Work as part of a small team, which will include other React Native developers, a project manager, QA professional, and a designer.
- Complete two week sprints and participate in sprint retrospectives and daily standups.
- Assist with building estimates.
- Interface with clients via Slack, Zoom, and email.
- Track your time throughout the day using Toggle.
- Work with modern tools including Jira, Slack, GitHub, Google Docs, etc.
- Be part of a community of React Native developers who share knowledge and help each other as problems arise.
- Required Candidate profile:-
- 2+ years of professional experience working with React Native.
- 4+ years of professional software development experience.
- Experience working with Swift, Java required.
- Meaningful experience working on large, complex systems.
- Ability to take extreme ownership over your work. Every day is a challenge to ensure you are performing to the expectations you and your team have agreed upon, both in regards to estimates and to the general process.
- 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.
- A positive mindset and can-do attitude.
- Forensic attention to detail.
- You work well within a team environment and enjoy working in the office with your colleagues.
We are looking for an Android Developer responsible for the development and maintenance of applications aimed at a range of devices including mobile phones and tablet computers. Your primary focus will be development of applications and their integration with back-end services. You will be working alongside other engineers and developers working on different layers of the infrastructure. Therefore, a commitment to collaborative problem solving, sophisticated design, and the creation of quality products is essential
Roles and Responsibilities
² Design and build applications.
² Ensure the performance, quality, and responsiveness of applications
² Collaborate with a team to define, design, and ship new features
² Identify and correct bottlenecks and fix bugs
² To maintain the code quality, organization, and automation
² Work with the development team consisting of architects, UI designers, product managers, testers to deliver high quality mobile product & services
² Develop, test and rollout optimised UIs for diff versions/device
² Translate designs and wireframes into high quality code
² Build for multi device & multi platform scenario i.e mobile website along with mobile app
² Design, build, and maintain high performance, reusable, and reliable Java code
² Ensure the best possible performance, quality and responsiveness of the application
² Adaptability is a key factor to becoming a great Android app developer
² Identify the bugs ,correct bottlenecks and fix bugs
Skills Required:
² Prominent hands on experience in Native Android, Native iOS or Both.
² Strong knowledge of Android SDK, different versions of Android, and how to deal with different screen sizes
² An Android app developer must be well-versed with Java programming language.
² Familiarity with RESTful APIs to connect applications to back-end services
² Strong knowledge on UI design principles, patterns, and best practices
² Having knowledge about offline storage, threading, and performance tuning
² Knowledge of the open-source Android ecosystem and the libraries available for common tasks
² A knack for benchmarking and optimization
² Ability to understand business requirements and translate them into technical requirements
² Understanding of Google’s Android design principles and interface guidelines.
² Proficient with Objective-C or Swift.
² Understanding of Apple’s design principles and interface guidelines
² Knowledge of low-level C-based libraries is preferred
² Familiarity with cloud message APIs and push notifications
² Knack for benchmarking and optimization
² Proficient understanding of code versioning tools (such as Git, Mercurial or SVN)
² Familiarity with continuous integration.
Job Description
- Build pixel-perfect, buttery smooth UIs
- Leverage native APIs for deep integrations
- Diagnose and fix bugs and performance bottlenecks for performance that feels native.
- Maintain code and write automated tests to ensure the product is of the highest quality
Requirements
- 2+ years of relevant industry experience in React Native
- A deep understanding of JavaScript
- Familiarity with video recording, playback, and uploading libraries
- Experience with Native Android app deployment
- Familiarity with modern front-end build pipelines and tools
- Familiarity with RESTful APIs
- Familiarity with code versioning tools (such as Git)
S/he will be responsible for complete react-native development and collaborate as required with product management and user experience teams. ● S/he will architect and design product features with a focus on maintainability, extensibility, scalability, and lowest operational cost. ● S/he will be responsible for undertaking proof-of-concept work where required. ● S/he will be responsible for coding and implementing features with very high coverage of unit tests and component tests ● S/he will be responsible for managing a team of android/reactive native developers, and perform design and code reviews. ● S/he will continuously discover, evaluate, and implement new technologies to maximize development efficiency What are we looking for? ● S/he must have experience in delivering projects using react native ensuring performance, quality, and responsiveness of applications ● S/he must have strong design and programming skills in Kotlin, JavaScript, Typescript, react components, Android SDK, Android Studio, SDK, RXJava, HTML5, CSS3, JS, RWD and other mobile frameworks and /or accelerators. ● S/he must have experience with offline storage, multi-threading, performance tuning, memory tuning and RESTful APIs to connect Android applications to back-end services ● S/he must have experience with Model-View View-Model, Model View Presenter software architecture, retrofit, and dagger among others
● S/he must have unit-testing the code for robustness, including edge cases, usability, and general reliability. ● S/he must have experience in mobile analytics. ● S/he must have experience in designing, optimizing and integrating business processes across disparate systems and mobile technologies.
Good-To-Haves / Desired Qualifications
● It would be good if, s/he has the ability to multi-task, prioritize, be attentive to detail, have an eye for design, think logically, organize and communicate coherently. ● It would be good if, s/he is fast paced, collaborative / team player, performance-driven and self-motivated ● It would be good if, s/he is curious, analytical, a problem solver and has logical reasoning.
Key responsibilities:
- 1-2 years experience in React-Native based app development
- 1-3 years experience in Mobile app development (React-Native + iOS)
- Hands on experience in Redux
- Knows how to embed React-Native in a native (iOS/Android) component and vice versa
- Strong hold on JS/ CSS fundamentals
- Development experience of UI (layouts, animations, etc.)
- Experience of customizing libraries
- Good understanding of Design and Architecture Patterns
- Strong focus on app performance
Must have:
- Experience in iOS development
- Willingness to learn and work in React Native
Good to have:
- Experience in unit testing
About Us.
We are a fast growing Chennai-based startup (with venture funding)
We are here for the long run and are led by strong engineers with
significant experience at top tier firms like McKinsey, Oracle, Morgan
Stanley, and authors of multiple Java Standards
We're building an awesome enterprise product that
is already transforming businesses across the globe
Our clients include prominent organizations like Swiggy who use us every
day!
We have raised venture investment, so this role will not vanish in a few
months
Our mentors include the Vice Chairman of HCL Technologies, Chairman of
Singapore Airlines, Senior leaders from LinkedIn etc.
Other background information
We're looking for strong, passionate developers who want to join our
team and grow
We move fast, and will make you an offer in a few days for the right
person
The job location will be in Chennai (it is the SaaS capital of India)
Please only apply if you are open to moving to Chennai (or are already
here)
This won't be a 10 - 6 job, but you will be given amazing responsibilities
You will learn a ton, have a lot of flexibility, and have fun while doing it!
Responsibilities and qualifications
5+ years of Android development experience
Will own several parts of our tech stack, but primarily our Android app
Build new functionality to the Android app and regularly re-architect it to
keep up with latest technologies (e.g., Kotlin)
Work on new tech that we are already a leading user of (e.g., Google
Firebase)
Work closely with the backend team to construct creative solutions
Optimize, improve efficiency, scalability, stability of application
MUST BE reliable, and be able to communicate clearly
MUST BE able to own and deliver their own work within deadlines,
professionally
Should be passionate about building a strong engineering culture
Bonus Points for experience building high-scale applications, SDKs and other
web technologies (like JavaScript).
Job Perks
Daily breakfast
Friday team lunches
Macbook
Nice calm work environment, with new furniture
Potential for stock options (in lakhs)
Stipend to attend conferences
Potential travel to Singapore and other client locations
Notice Period: Not more than 45days.
Android experience : 5 to 10 years mandatory.
CTC: No bar for right candidate.
candidates comfortable to reloacte at chennai can apply.










