Senior 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.

Do Your Thng 

About us:

DYT - Do Your Thng, is an app, where all social media users can share brands they love with their followers and earn money while doing so! We believe everyone is an influencer. Our aim is to democratise social media and allow people to be rewarded for the content they post. How does DYT help you? It accelerates your career through collaboration opportunities with top brands and gives you access to a community full of experts in the influencer space. 

• 0-1years of experience as an iOS developer. Eager learner.
• Must have Working Experience in a product based organization at least 18 months.
• Good Communication skills must. 

• Understanding the project requirement intuitively and providing proper time estimation.-Always read for troubleshooting in all important projects. ● Experience in accessing data as JSON/XML using REST API. 
• Candidate should have good knowledge of iOS, Swift, xCode and Git. ● Ability to build complex iOS standalone client applications & user interfaces, design & implementation. 
• Experience with iOS Frameworks such as UIKit, Auto-layout using storyboards, etc. ● Knowledge of Apple's design principals, application interface guidelines, and experience with 
• AutoLayout. 
• Good communication skills with the ability to work in a highly-collaborative, agile team 
• Strong analytical and problem-solving skills 
• Flexibility to learn, and work with new technologies

Job Description Responsibilities:

• Design and build mobile applications using React Native

• Build native component for iOS (Native experience would be plus) or Android

• Collaborate closely with the Team lead to understanding the requirement and implementation details.

• integration with third-party APIs.

Required Skills:

• 2yrs experience in React-Native based app development is a must.

• Must have published at least 1 major React-Native app

• Knows how to embed React-Native in a native(iOS/Android) component and vice versa

• Strong focus on app performance.

Job Description :

We are looking for an iOS developer responsible for the development and maintenance of applications aimed at a range of iOS devices including mobile phones and ipads. Your primary focus will be development of iOS 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.

Responsibilities :

• Design and build applications for the iOS platform
• Ensure the performance, quality, and responsiveness of applications
• Collaborate with a team to define, design, and ship new features
• Identify and correct bottlenecks and fix bugs
• Help maintain code quality, organization, and stigmatization.

Skills :

• Should have knowledge of UI(storyboard,xibs,autolayouts).
• API implementation.
• Swift programming language.

Responsibilities And Duties:

• As a Flutter Developer, you will create multi-platform apps for iOS and Android using Google's Flutter development framework.
• The primary focus will be on creating new experiences and maintaining the acclaimed app. You will additionally work on innovative new app projects as well as internally incubated ventures.
• Deep experience contributing to and managing high-scale production mobile apps. You must have previous experience in Flutter development.

Requirement:

• 3-5 years working as a full-time professional developer (Mobile) and 0.6 Year in a flutter(Must).
• Experience building a moderately complex Android app with knowledge of dart.
• Bonus if it's on the Play Store or we can view the project
• Willing to work with cross-platform frameworks.
• Willing to learn and work on different mobile platforms/frameworks when needed.
• Published at least one app on the Play Store using Flutter/ Native (Java/Kotlin/Swift/Object c).