iOS Developer

Position: Senior React Native Developer (4- 7 years)

Location: Remote (Company in Mumbai)

Company: Big Rattle Technologies Private Limited

Immediate Joiners only.

Summary:

We're looking for a seasoned React Native developer who has shipped production-grade mobile apps on both iOS and Android — ideally in the high-traffic, high-stakes world of e-commerce. You'll own the mobile experience end-to-end: architecture, performance, and flawless UX across devices.

Note: We are looking for a senior expert who has delivered multiple apps that are built from scratch and hosted on Apple Store/ Play Store i.e. e2e lifecycle.

KEY RESPONSIBILITIES

• Design and build scalable React Native apps for both iOS and Android from scratch to App Store / Play Store deployment.
• Architect complex e-commerce flows — product catalogues, cart, checkout, payment gateway integration, and order tracking.
• Optimize app performance: reduce TTI, maintain smooth 60fps animations, and manage memory on low-end devices.
• Integrate REST and GraphQL APIs; manage state with Redux Toolkit, Zustand, or React Query.
• Implement push notifications, deep linking, in-app navigation, and offline-first strategies.
• Write clean, well-tested code; maintain CI/CD pipelines using Fastlane, GitHub Actions, or Bitrise.
• Collaborate with designers, backend engineers, and product managers in Agile sprints.
• Conduct code reviews and mentor junior mobile developers.

Required Skills:

Core Mobile

▸ React Native CLI & Expo

▸ TypeScript

▸ React Navigation v6+

▸ iOS (Swift basics) & Android (Kotlin basics) ▸ Xcode & Android Studio

E-commerce & Integrations

▸ Product / Cart / Checkout flows

▸ Razorpay, Stripe, PayPal SDKs

▸ Wishlist, search UX, filters

▸ Order tracking & delivery status

▸ Push notifications & deep linking

State & Data

▸ Redux Toolkit / Zustand

▸ React Query / SWR

▸ REST & GraphQL APIs

▸ AsyncStorage / MMKV

▸ Firebase Realtime DB / Firestore

DevOps & Tooling

▸ Fastlane & GitHub Actions / Bitrise

▸ Jest (unit) & Detox (E2E)

▸ Firebase Crashlytics & Sentry

▸ Flipper / Reactotron

▸ App Store & Play Store deployments

Nice to Have skills: New Architecture · RN Web · AR try-on · RTL support · Shopify SDK · WCAG · Maps SDK

• React Native New Architecture (JSI / Fabric / TurboModules)
• React Native Web or monorepo setups (Nx, Turborepo)
• AR product try-on experiences (ARKit / ARCore)
• Shopify Storefront API or WooCommerce SDK experience
• Accessibility (WCAG mobile) implementation
• Live order-tracking maps (Google Maps / Mapbox)

Required Qualifications:

• Bachelor’s degree in Computer Science, Engineering, or a related technical 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.

Job Description

We are seeking an experienced and highly skilled Senior Android Developer to join our Banking project team. As a Senior Android Developer, you will be responsible for designing, developing, and maintaining the Android Application for our service-oriented project. This is an excellent opportunity to work in a dynamic and collaborative environment, leveraging the latest technologies to deliver cutting-edge service.

Responsibilities:

• Collaborate with cross-functional teams to design, develop, and deliver high-quality Android applications with a strong emphasis on user experience (UX).
• Utilize architecture patterns and best practices for scalable and maintainable code.
• Implement reactive programming for efficient and responsive applications.
• Integrate third-party SDKs to enhance application functionality.
• Conduct regular code reviews to ensure code quality and adherence to best practices.
• Lead and contribute to sprint planning, dev analysis and ensure timely delivery of milestones.
• Manage and mentor team members, fostering a collaborative and productive work environment.
• Communicate effectively with clients to understand requirements and provide updates on project progress.
• Improves testability, team documents.
• Stay updated with the latest trends and technologies in Android development.

Qualifications:

• Bachelor's degree in Computer Science, Software Engineering, or a related field. Relevant experience 5 to 8 years.
• Proven experience as an Android Developer, preferably in a senior or lead role, with a strong focus on service-oriented projects.
• Good working knowledge of Android and Core Java.
• In-depth knowledge of architecture patterns such as MVP and MVVM.
• Experience with reactive programming using RxJava.
• Proficient in utilizing Dependency Injection tools.
• Hands-on experience with integrating third-party SDKs.
• Familiarity with Kotlin programming language.
• Excellent problem-solving and analytical skills, with the ability to debug complex issues and propose effective solutions.
• Proficiency in UI rendering and performance optimization.
• Demonstrated ability in team management, including sprint planning and handling deliverables.
• Effective communication skills for collaboration with cross-functional teams and clients.
• Ability to adapt to new technologies and learn quickly.

Good to have:

• Familiarity with Kotlin programming language.
• Backend understanding to facilitate effective communication with backend developers.
• Experience with cross-platform development frameworks (e. g., Flutter) is a plus.
• 
  

Our Culture and policies we believe in and live by at Nuclei:

• Profitable company with a team-first culture
• Everyone is encouraged to take decisions and lead. Complete freedom with responsibility.
• Work from anywhere - Goa or Bali or Ladakh - Permanently remote
• Unlimited leaves - There is no leave policy at Nuclei.
• 5 days working. Friday 2nd halves are focused on learning and development
• What we do is a part of work - Bookclub, Hackathons/ Ideathons, Chess club, Expert talks, etc. To explore opportunities to evolve ourselves as an individual and team.

Responsibilities:

• Collaborate with cross-functional teams to define, design, and ship new features.
• Develop and maintain high-quality Android applications using Kotlin programming language.
• Design, build and maintain high-performance, reusable, and reliable code.
• Ensure the best possible performance, quality, and responsiveness of the application.
• Identify and correct bottlenecks and fix bugs.
• Continuously discover, evaluate, and implement new technologies to maximize development efficiency.
• Work with external data sources and APIs.
• Unit-test code for robustness, including edge cases, usability, and general reliability.

Requirements:

• Bachelor's degree in Computer Science, Software Engineering or related field.
• 2+ years of experience in Android development using Java and Kotlin.
• Strong knowledge of Android SDK, Android UI design principles, and Material Design.
• Experience with RESTful APIs, JSON, and XML.
• Familiarity with cloud message APIs and push notifications.
• Understanding of code versioning tools such as Git.
• Familiarity with continuous integration.
• Good understanding of object-oriented programming, software design patterns and algorithms.
• Strong analytical and problem-solving skills.
• Excellent written and verbal communication skills.
• Ability to work independently and as part of a team.

We are looking for a hands-on iOS Developer to join our mobile team. The apt applicant must have iOS software development skills, a passion for delivering high-quality, rock-solid apps. iOS programming works closely with other app development and technical teams.

• Translate designs and wireframes into high-quality code.
• Design, build and maintain high performance, reusable, and reliable code.
• Ensure the best possible performance, quality, and responsiveness of the application.
• Identify and correct bottlenecks and fix bugs.
• Help maintain code quality, organization, and automatization.

An enthusiastic individual with the following skills. Please do not hesitate to apply if you do not match all of it. We are open to promising candidates who are passionate about their work and are team players.

• Bachelor's degree or higher in Computer Science and minimum 4 years of Software Development experience- Knowledge of Mobile automation and experience on platforms such as espresso
• Knowledge of application profiling and performance monitoring tools such as iOS profiler, AppDynamics, Dynatrace, etc.
• Excellent coding skills in an object-oriented language.
• Experience with offline storage, threading, and performance tuning
• Have published at least one original iOS app.- Understanding of Apple's iOS design principles and interface guidelines- Strong knowledge of iOS UI design principles, patterns, and best practices

You will be working with top-quality engineers who have built one of the best employee engagement SaaS platforms. You will be reporting to AVP Engineering and working closely with the Architect and other leads.

A wholesome opportunity in a fast-paced environment that will enable you to juggle between concepts, yet maintain the quality on content, interact and share your ideas and have loads of learning while at work. Work with a team of highly talented young professionals and enjoy the benefits of being at Empuls.

A fast-growing SaaS commerce company based in Bangalore with offices in Delhi, San Francisco, and Dublin. Empuls works with over 100 global clients. We help our clients engage and motivate their employees, sales teams, channel partners, or consumers for better business results.

We look forward to connecting with you. As you may take time to review this opportunity, we will wait for a reasonable time of around 3-5 days before we screen the collected applications and start lining up job discussions with the hiring manager. We however assure you that we will attempt to maintain a reasonable time window for successfully closing this requirement. The candidates will be kept informed and updated on the feedback and application status

Benefits

We pay top salaries with lucrative esops options.

Opportunity to work and learn with very mature, helpful and highly motivated techies.

Our environment is vibrant and full of energy. We are looking for like-minded people who love to “code” and have passion in building great software.

Flexible timings.

Quarterly parties

Rewards and Recognitions

Unlimited Leaves

Flexibility to work remotely

Flexibility to work from Gurgaon or Bangalore Office

Half yearly review cycle

React Native Lead. We want you to have a chat with the candidates whether they are good on these points and do they have the experience as per mentioned in JD. It will be beneficial for us to filter out profiles for RN Lead.

Job Description / what you'll be doing

• Leading the team to build cutting edge React Native applications.
• Architects build and maintain excellent applications with clean code.
• Implement pixel-perfect UI's that match designs. Knowledge of scalable sizing of UI is a must.
• Implement clean, modern, smooth animations and transitions that provide an excellent user experience.
• Integrate third-party APIs.
• Write unit and integration test cases.
• Release applications to IOS and Google Play stores.
• Must understand iOS and Android native code which can be used to write bridges.
• Can work in pod structure. 
• Must be comfortable in the SCRUM process. Complete two-week sprints and participate in sprint retrospectives and daily standups.
• Assist with building estimates and pipeline for tasks rollout.
• Good communication and people skillset.
• Work with modern tools including Jira, Slack, GitHub, Firebase, GTM, Google play console, AppStore Connect, etc.
• Be part of a community of developers who share knowledge and help each other as problems arise.
• Ability to work through new and difficult issues and contribute to libraries as needed.
• Ability to create and maintain continuous integration and delivery of applications.
• Must be familiar with profiling and performance monitoring of the application.
• Ability to achieve stretch goals in a highly innovative and fast-paced environment

Requirements

• 6+ years of professional experience working with Mobile application development and 2-4+ years of experience with React Native development.
• Experience working with Swift / ObjectiveC, Java / Kotlin required.
• Should have a crystal understanding of App architecture and how to React interacts with the native layers for iOS and Android respectively
• Excellent JavaScript Developer has a deep understanding of scope and closures, ES6, Object prototypes, Async, Hooks, Functional components, and Performance
• Excellent Code reviewer and champion at writing unit test cases
• Should be able to evaluate alternative multiple system designs and solutions and make data-backed decisions in his/her approach
• Meaningful experience working on large, complex systems.
• Ability to take 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. extreme ownership
• An understanding of best practices and a commitment to following them.
• A positive mindset and can-do attitude.
• Forensic attention to detail.
• Mentoring, onboarding, and interviewing the candidate
• Experience mentoring junior software engineers to improve their skills and make them more effective product software engineers
• Experience influencing software engineers- best practices within your team
• Passion to design and develop intuitive user interface
• Sound business judgment, proven ability to influence others, and strong analytical thinking skills
• You work well within a team environment and enjoy working in the office with your colleagues.

Responsibility:

• Building user friendly Android and iOS Apps on React Native platform.
• Designing state-less components in React Native. State management with any of Redux, mobX or Flux.
• Writing modular, reusable, maintainable, well documented and fully tested code.
• Converting designs to mobile applications.
• Integrating with Rest APIs, while collaborating with Backend deve.
• Take complete ownership of the apps and change various elements/ technologies as per business need.
• Ensure optimum speed, performance, quality and responsiveness of application

Mobile App Development:-

We are looking for 2 - 3 years of overall mobile app development experience out of which experience of at least 2+ years in developing native and hybrid mobile applications Should have handled end-to-end designing, development, testing, and deployment on any native Android/iOS platform.

Hands-on experience with native development will add advantage, Angular 6+ Excellent technical knowledge on HTML5, CSS3, JQuery, JQuery Mobile, AJAX, XML, JSON, Java, Bootstrap, PhoneGap, Angular JS.

Should have working experience in consuming Web Service and REST API.

Experience in Business Object Model implementation data integration with JSON/XML Designing and implementing different analytics interfaces such as charts, graphs etc.

Should have knowledge of App signing, publishing to Play-store and iTunes Well versed with code management like GIT, SVN Should be a team player

Roles and Responsibilities:-

• Develop hybrid mobile applications & deliver across the entire app life cycle concept,
• design, build, deploy, test, release to app stores.
• Work directly with the tech team to conceptualize, build, test, and realize products.
• Test the app on devices and Deploy it on Apple Store & Google Play Store.
• Standardizing the platform and in some cases apps to deliver across multiple brands with minimal duplication of effort and Optimizing performance for the apps.