
Position: Android Developer (1- 4 years)
Location: Marol, Andheri East, Mumbai
Company: Big Rattle Technologies Private Limited
Immediate Joiners only.
Summary
We are seeking an experienced and dedicated Android Developer to join our mobile team. You will be responsible for designing, developing, and maintaining high-performance, user-centric Android applications. You will be instrumental in driving the technical implementation of our mobile strategy, ensuring high code quality, and leveraging the latest Android development best practices. You must have delivered at least 3-4 projects.
Required Skills (more the better):
- Kotlin Mastery: Strong proficiency in the Kotlin programming language, including experience with functional programming concepts, null safety, and extension functions.
- Android SDK & IDE: Deep expertise with the Android SDK and Android Studio.
- Architecture Components: Proven experience with key Android Jetpack libraries: Lifecycle, ViewModel, LiveData/StateFlow, Navigation, and Room persistence library.
- Asynchronous Programming: Extensive practical experience with Kotlin Coroutines for efficient background processing.
- Version Control: Expert knowledge of Git for source control management.
- Testing: Experience with automated testing methodologies, including unit testing and UI testing.
- Experience on Android Architecture Components – MVVM Architecture
- Experience with integratingRESTful API
- Strong understanding of object-oriented programming
- Knowledge of Push Notifications & cloud-based messaging
- Understanding of security principles including secrets, encryption, etc
- Bonus Skills (Preferred): Experience with Jetpack Compose, Dependency Injection frameworks (e.g., Hilt/Dagger), and cloud service integration (e.g., Firebase), Local DB e.g., Room, Realm, etc
Responsibilities will include:
- Design & Development: Lead the design and development of advanced, feature-rich applications
- Quality & Performance: Write robust, well-tested code, conduct rigorous unit and integration testing (using JUnit and Espresso/Compose Testing), and continuously optimize app performance, stability, and responsiveness.
- Collaboration: Participate actively in code reviews, technical design discussions, and work closely with Product Managers, UX/UI Designers, and QA teams in an Agile environment.
- Ensure the application is secure and free of vulnerabilities
- Evaluate third party IDEs and tools to build relevant applications.
- Conduct code reviews & peer reviews.
- Establish coding standards.
- Integrate user interface with code.
- Prepare necessary documentation.
- Review updates/patches and make necessary code updates.
- Develop apps for different versions of Android and ensure compatibility with different screen sizes
- Maintenance & Deployment: Manage application releases, debugging, and deployment to the Google Play Store, and maintain the build system using Gradle.
Required Qualifications:
- Bachelor’s or Master’s degree in Computer Science, Information Technology, or related field.
Why should you join Big Rattle?
Big Rattle Technologies specializes in AI/ ML Products and Solutions as well as Mobile and Web Application Development. Our clients include Fortune 500 companies. Over the past 13 years, we have delivered multiple projects for international and Indian clients from various industries like FMCG, Banking and Finance, Automobiles, Ecommerce, etc. We also specialise in Product Development for our clients.
Big Rattle Technologies Private Limited is ISO 27001:2022 certified and CyberGRX certified.
What We Offer:
- Opportunity to work on diverse projects for Fortune 500 clients.
- Competitive salary and performance-based growth.
- Dynamic, collaborative, and growth-oriented work environment.
- Direct impact on product quality and client satisfaction.
- 5-day hybrid work week.
- Certification reimbursement.
- Healthcare coverage.
How to Apply:
Interested candidates are invited to submit their resume detailing their experience. Please detail out your work experience and the kind of projects you have worked on. Ensure you highlight your contributions and accomplishments to the projects.

About Big Rattle Technologies
About
Connect with the team
Similar jobs
MUST-HAVES:
- 5+ years of professional experience in web development.
- Strong proficiency in React.js and the Next.js framework.
- Solid understanding of JavaScript (ES6+), HTML5, Tailwind and TypeScript.
- Experience with server-side rendering (SSR) and static site generation (SSG).
- Familiarity with state management libraries (e.g., Redux, Context API).
- Proficient with version control systems like Git.
- Experience with modern build tools and package managers (e.g., Webpack, Babel, NPM/Yarn).
- Familiarity with API integration (REST, GraphQL).
- Strong understanding of web performance optimization techniques.
- Knowledge of testing frameworks (e.g., Playwright, Jest, Cypress).
- Ability to work in an Agile environment, collaborate with cross-functional teams, and deliver high-quality code under tight deadlines.
SKILLS: REACT, REACT NATIVE, PLATFORM INTEGRATION, JAVASCRIPT
Notice Period: 0-15 Days only
Additional Guidelines:
Interview process: - 2 Technical round + 1 Client round
3 days in office, Hybrid model.
JOB DESCRIPTION:
We are seeking a highly skilled Senior Web Developer with deep expertise in React and Next.js to join our growing team. The ideal candidate will have extensive experience in building high-quality, scalable web applications and will take ownership of both frontend development and architecture. As a Senior Developer, you will collaborate closely with product managers, designers, and other developers to deliver robust and performant solutions. Your ability to solve complex problems, optimize web performance, and mentor junior developers will be key to success in this role.
KEY RESPONSIBILITIES:
- Design, develop, and maintain web applications using React and Next.js.
- Architect and optimize web pages for speed and scalability.
- Build reusable components and front-end libraries for future use.
- Implement server-side rendering and static site generation using Next.js.
- Collaborate with the backend team to integrate APIs and ensure seamless front-end and back-end communication.
- Ensure the technical feasibility of UI/UX designs and implement pixel-perfect user interfaces.
- Work with product teams to build features that improve user engagement and satisfaction.
- Troubleshoot, debug, and upgrade existing systems.
- Provide technical leadership and mentorship to junior developers.
- Stay up-to-date with the latest web development trends, frameworks, and tools.
REQUIREMENTS:
- 5+ years of professional experience in web development.
- Strong proficiency in React.js and the Next.js framework.
- Solid understanding of JavaScript (ES6+), HTML5, Tailwind and TypeScript.
- Experience with server-side rendering (SSR)and static site generation (SSG).
- Familiarity with state management libraries (e.g., Redux, Context API).
- Proficient with version control systems like Git.
- Experience with modern build tools and package managers (e.g., Webpack, Babel, NPM/Yarn).
- Familiarity with API integration (REST, GraphQL).
- Strong understanding of web performance optimization techniques.
- Knowledge of testing frameworks (e.g., Playwright, Jest, Cypress).
- Ability to work in an Agile environment, collaborate with cross-functional teams, and deliver high-quality code under tight deadlines.
PREFERRED QUALIFICATIONS:
- Experience with Next.js API routes and serverless functions.
- Familiarity with cloud platforms (e.g., AWS, Vercel) and CI/CD pipelines.
- Experience with modern CSS frameworks (e.g., Tailwind, Styled Components).
- Knowledge of SEO best practices for React and Next.js applications.
- Contributions to open-source projects or a portfolio of personal projects.
Job Title : Angular Developer
Location : Gurgaon (Work from Office)
Experience : 2+ Years
Employment Type : Full-time
Job Description :
We are seeking a highly skilled Angular Developer to join our team in Gurgaon.
Key Responsibilities :
- Develop, optimize, and maintain Angular-based applications.
- Work closely with backend developers to integrate RESTful APIs.
- Design and implement responsive UI components for web applications.
- Write clean, maintainable, and well-documented TypeScript and JavaScript code.
- Ensure cross-browser compatibility and optimize application performance.
- Conduct code reviews and mentor junior developers.
- Troubleshoot and resolve issues related to UI/UX performance.
- Stay updated with the latest trends and best practices in front-end development.
Required Skills & Qualifications :
- 2+ Years of experience in Angular (version 8+).
- Strong proficiency in TypeScript, JavaScript, HTML5, CSS3, and SCSS.
- Experience with RxJS, NgRx, or other state management libraries.
- Proficiency in consuming RESTful APIs and integrating front-end applications with backend services.
- Strong understanding of responsive web design and cross-browser compatibility.
- Experience with Unit Testing (Jasmine, Karma) is a plus.
- Knowledge of Agile methodologies and familiarity with tools like JIRA, Git, and CI/CD pipelines.
- Excellent problem-solving skills and the ability to work collaboratively in a team environment.
Preferred Skills :
- Familiarity with Progressive Web Apps (PWA).
- Experience in working with Material Design and third-party UI libraries.
- Exposure to Cloud technologies (AWS, Azure, or GCP) is a plus.
- Understanding of Micro Frontend architecture.
- Build performant frontend features using React and Next.js.
- Drive UI architecture decisions to support A/B testing and analytics tracking.
- Implement pixel-perfect designs in collaboration with Design and Product teams..
- Contribute to performance baselining and monitoring for web/mobile platforms.
- Ensure seamless experiences across browsers and devices.
- Own CI/CD workflows for frontend deployment and observability.
About Credilio
Founded by a bunch of serial entrepreneurs having fintech and banking experience, Credilio is building the next generation tech-enabled marketplace for financial products. While English-speaking literate India is adequately served by the banks, our focus is on the Bharat - i.e. the next 200 million middle and lower-middle-class Indians who are expected to fuel the demand for financial products.
We are looking for smart Full Stack Javascript Engineers who want to make a difference in the way people consume financial services in India.
Responsibilities
- Build reusable code and libraries for future use.
- Own & build new modules/features end-to-end independently.
- Collaborate with other team members and stakeholders.
- Work in an agile environment to rapidly build high quality and robust features.
- Proactively discover, evaluate, and implement new technologies to improve development efficiency.
Required Skills
- Master in Vue.js (Nuxt.js) and HTML/CSS.
- Hands-on with TypeScript will be a big plus.
- Hands-on with Tailwindcss will be a plus.
- Experience with modern JS toolchains such as Webpack, Grunt, Bower, and Yeoman.
- Understanding the nature of asynchronous programming and its quirks and workarounds.
- Open Source enthusiast.
- Comfortable with Test Driven Development.
- Can learn and adapt fast, as well as identifying and solving problems.
- Understanding of Git, SPA, PWA, Docker.
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.
We are seeking an experienced Senior React Web Developer to join our product development team. As a Senior React Web Developer, you will be responsible for developing and maintaining our web applications using ReactJS and Material UI. You will work closely with other developers, designers, product managers, and stakeholders to create high-quality, user-friendly, and scalable software.
Responsibilities:
- Design and develop high-quality, responsive, and user-friendly web applications using ReactJS and Material UI.
- Collaborate with product managers, designers, and stakeholders to ensure the project meets the business requirements and user needs.
- Write clean, maintainable, and efficient code.
- Optimize the application for maximum speed, scalability, and usability.
- Develop reusable UI components and libraries.
- Ensure the technical feasibility of UI/UX designs.
- Identify and troubleshoot bugs and issues.
- Stay up-to-date with the latest trends and technologies in ReactJS, Material UI, and front-end development.
- Participate in code reviews and contribute to the development of best practices.
- Mentor and guide junior developers in the team.
Requirements:
- Bachelor's degree in computer science or related field.
- At least 7 years of experience in front-end development, with at least 4 years of experience in ReactJS and Material UI.
- Strong proficiency in JavaScript, CSS, HTML, and related web technologies.
- Experience with Redux, Redux-Saga, and other state management libraries.
- Experience with building scalable and complex web applications.
- Strong problem-solving skills and attention to detail.
- Experience with Agile development methodologies.
- Strong communication and collaboration skills.
- Experience with Git and version control.
- Ability to work independently and as part of a team.
- Experience with GraphQL and Apollo Client.
- Experience with server-side rendering using Next.js .
- Experience with AWS or other cloud providers.
- Experience with CI/CD pipelines and automation.
- Experience with testing frameworks like Jest, Enzyme, or Detox.
- Experience with UX/UI design and prototyping tools.
About Rara Delivery
Not just a delivery company…
RaRa Delivery is revolutionising instant delivery for e-commerce in Indonesia through data driven logistics.
RaRa Delivery is making instant and same-day deliveries scalable and cost-effective by leveraging a differentiated operating model and real-time optimisation technology. RaRa makes it possible for anyone, anywhere to get same day delivery in Indonesia. While others are focusing on ‘one-to-one’ deliveries, the company has developed proprietary, real-time batching tech to do ‘many-to-many’ deliveries within a few hours.. RaRa is already in partnership with some of the top eCommerce players in Indonesia like Blibli, Sayurbox, Kopi Kenangan and many more.
We are a distributed team with the company headquartered in Singapore 🇸🇬 , core operations in Indonesia 🇮🇩 and technology team based out of India 🇮🇳
Future of eCommerce Logistics.
- Data driven logistics company that is bringing in same day delivery revolution in Indonesia 🇮🇩
- Revolutionising delivery as an experience
- Empowering D2C Sellers with logistics as the core technology
A section describing benefits and life at your company is a great way to attract talent.
About the Role
- 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 APIs.
- Work as part of a small team to build applications.
- 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 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










