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.

Rupayya (www.rupayya.com) is looking for a passionate and skilled iOS Developer with 2–4 years of experience in building high-quality mobile applications. The ideal candidate should have strong expertise in Swift, a good understanding of iOS frameworks, and the ability to deliver scalable and performant applications.

🛠️ Key Responsibilities

• Design and develop advanced applications for the iOS platform using Swift / Objective-C
• Collaborate with cross-functional teams including UI/UX designers, backend developers, and product managers
• Integrate RESTful APIs and third-party libraries/services
• Ensure the performance, quality, and responsiveness of applications
• Identify and fix bugs, optimize performance, and improve code quality
• Participate in code reviews and follow best coding practices
• Maintain code versioning using tools like Git
• Stay updated with the latest trends and technologies in iOS development

💡 Required Skills & Qualifications

• 2–4 years of hands-on experience in iOS development
• Strong proficiency in Swift (preferred) and/or Objective-C
• Experience with iOS frameworks such as UIKit, Core Data, Core Animation
• Familiarity with MVVM / MVC architecture patterns
• Experience with RESTful APIs and JSON parsing
• Knowledge of Auto Layout, Storyboards, and SwiftUI (preferred)
• Understanding of app lifecycle, memory management, and multithreading
• Experience with version control systems like Git

⭐ Good to Have

• Experience with SwiftUI and modern iOS development practices
• Knowledge of CI/CD pipelines for mobile apps
• Familiarity with unit testing frameworks (XCTest)
• Experience with Firebase, push notifications, and analytics tools
• Exposure to App Store deployment and guidelines

🎯 Key Competencies

• Strong problem-solving and debugging skills
• Attention to detail and performance optimization
• Good communication and teamwork skills
• Ability to work in an agile environment

🎁 What We Offer

• Opportunity to work on cutting-edge mobile technologies
• Flexible work environment
• Learning and growth opportunities
• ESOPs

About Unolo

Unolo is a rapidly growing organization focused on providing innovative solutions to empower companies and their field executives. With an impressive client roster including industry leaders such as Amul, Reliance, Intel, and NoBroker, we are dedicated to delivering cohesive and efficient work experiences. As a dynamic company, we value teamwork, technological excellence, and a passion for problem-solving.

Position Summary

We are seeking an exceptional iOS Developer to join our esteemed team. As a key member of our organization, you will collaborate with existing Android developers to enhance and upgrade our flagship product, Unolo. Your primary responsibility will be to implement new features such as a collections or payments module. Additionally, your expertise will contribute to scaling our customer base and driving revenue growth. This role offers the opportunity to work closely with the founder and be an integral part of our close-knit team.

Responsibilities

• Collaborate with existing iOS developers to enhance and upgrade the Unolo product
• Implement new features, including a collections or payments module
• Contribute to scaling our customer base and driving revenue growth

Requirements

• Minimum of 2 years of professional iOS development experience including experience in Swift.
• Ability to work closely with the founder and contribute to a tight-knit team
• Passion for technology and a strong problem-solving mindset
• Demonstrated ability to work quickly and deliver high-quality results
• This is an in-office position based at our offices in Golf Course Road, Gurugram.

Join us and be a part of our exciting journey as we continue to revolutionize the way companies operate and empower their field executives. Apply now to unleash your potential as a rockstar iOS Developer!

Job Profile: Software Development Engineer IV - iOS - StoreFront team

Location: Bangalore | Karnataka

ABOUT THE TEAM & ROLE:

Swiggy's StoreFront Engineering team helps customers enjoy personalized discovery and purchase experience across multiple product lines (Stores, Food, Genie and Instamart). The team is enabling this by developing thoughtfully crafted applications, smart cataloging, relevance-based search & intent-driven merchandising, checkout management solutions, and payment systems.

We are looking for engineers who have hands-on experience in building highly reliable distributed systems and have deep expertise in database design & performance tuning. Knowledge of Machine Learning and other Predictive Modeling techniques will be added strength. Few interesting problems we are solving include:

1. Client-facing Applications

2. Smart Catalog & Category Intelligence

3. Personalized Search & Merchandising experience

4. Payments

5. Pricing

6. Order Management System

At Swiggy, SDE IV(s) play an integral role in owning end-to-end Design/Architecture of complex systems. They co-own the technology vision of the respective team and significantly contribute to the overall success of the team. They partner with the product/business teams to understand the product features and specifications, translate them into high level and low-level design thereby facilitating the team in design and development of mission critical applications.

What qualities are we looking for?

• Hands on experience in mobile application development for at least
• Hands on working experience in Swift
• Experience in multithreaded programming and memory optimization
• Ability to learn and grow in a fast paced setup
• Working knowledge of iOS Architectural Components and Design Patterns
• Very good debugging skills
• Good knowledge in implementing Pixel Perfect designs
• Good in Data Structures and Algorithm

What will you get to do here?

• Coming up with best practices to help the team achieve their technical tasks and continually thrive in improving the technology of the product/team
• Driving the adoption of best practices & regular Participation in code reviews, design reviews, architecture discussions
• Experiment with new & relevant technologies and tools, and drive adoption while measuring yourself on the impact you can create
• Implementation of long term technology vision for your team
• Responsible for complete architecture of your product
• Creating architectures & designs for new solutions around existing/new areas
• Decide technology & tool choices for your team & be responsible for them

• Development and delivery experience in iOS, at least 2 apps should be in App Store
• Proficient in Swift 4.0 or later
• Experience with iOS frameworks such as UIKit, Maps, Core Location, Core Bluetooth and Core Animation etc.
• Familiarity with MVVM, Test driven development(TDD)
• Experience with third-party libraries such as Alamofire etc. and APIs Solid understanding of the full mobile development life cycle
• Proficient in RESTful APIs
• Proficient in Git
• Familiarity with push notifications and cloud message APIs etc.
• Experience with offline storage, threading, and performance tuning, optimisation
• Experience with performance and memory tuning with tools such as xcode Instruments and Shark
• Experience in writing unit and functional tests
• Perform bug fix and improve application performance
• Working knowledge of the general mobile landscape, architectures, trends, and emerging technologies
• Strong UX/UI design exposure and experience in making apps work intuitively and with pixel perfect interfaces. Understanding of Apple’s design principles and human interface guidelines
• Strong CS fundamentals (with competencies in algorithms and data structures)
• Highly accountable and takes ownership, with collaborative attitude, and a lifelong learner.

We are hiring for one of our clients (building an immersive platform for creators, from India, which can be used by creators to create content and engage their audience across the world. And they are looking for smart and motivated 'Mobile Engineers' to help build it.

For this, they need someone who has working knowledge in building quality mobile apps in React-Native/Flutter, handling device specific aspects, etc.

Being a Mobile Engineer at this organization will be like a feeling to build something that millions of users across the world can interact with. You will be helping in setting forth the mobile-frontend culture and journey.

Also, experience the working in the early team, shape a startup from the grounds up and be a part of the high growth journey.

Key Responsibilities: -

1. Build and deploy product features end to end.

2. You will build high quality features for a mobile app from grounds up, and can use patterns like composition, inheritance, renderProps, etc.

3. Research and implement things wherever needed, think automating via Fastlane CI/CD, testing logically so it works across multi-resolution devices, etc.

4. Setting up events for user, performance, and error analytics, think GA, hotjar, sentry, etc.

5. Participate in product and design ideation, collaborate with the team to implement high-quality features.

Requirements: -

1. Solid foundation in JS and React Native.

2. Passionate about product and drives it with engineering.

3. Architectural familiarity of implementation, not just UI features.

4. 1+ years of experience in building quality apps in React Native.

5. Identify and resolve performance and device specific issues.

6. Can adapt to best practices and learn device specific things in Android/iOS.

7. Code quickly and test thoroughly - maintain the balance between velocity and code health.

8. Great taste in UI and UX

Perks: -

1. Become a part of our early team, and shape products from grounds up

2. Attractive compensation and esops.

3. Macbook pro

4. Empowered to build an amazing startup culture with us

5. Full ownership and massive growth opportunities

6. and more...

The organization is funded by India's top executives and angel investors. 

Requirement::

• Must Have worked with Flutter / Android Application development.

• Excellent ability to develop & understand algorithms

• Excellent verbal & written communication.

• Strong knowledge in Restful web services. Experience in interacting with web services from the Flutter mobile platform

• Experience with Offline Storage, Threading, And Performance Tuning

• Strong knowledge in Push Notifications

• Analytical, Problem Solving and Decision Making Skills.

• Should have knowledge on client requirements analysis.

Website - https://praxinfo.com/">https://praxinfo.com/