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.

Qualifications:

· Education: Bachelor’s or Master’s degree in Computer Science, Software Engineering, or a related field, or equivalent experience.

· Experience: Minimum of 5 years of experience in iOS development with a strong portfolio of released applications that can be shared for review.

· Technical Skills:

o Proficiency in Swift and Objective-C.

o Solid understanding of object-oriented programming

o Knowledge of memory management and multi-threading

o Experience with embedded databases and other system data stores

o Strong understanding of iOS frameworks such as UIKit, Core Data, Core Animation, and Core Graphics.

o Good  knowledge of performance limits and characteristics

o Good sense of UI design execution principles

o Experience with RESTful APIs, JSON, and third-party libraries to connect to backend services.

o Knowledge of mobile app architecture patterns such as MVC, MVVM, and VIPER.

o Experience with version control systems, preferably Git.

o Familiarity with continuous integration/continuous deployment (CI/CD) pipelines.

o Implementation of automated testing platforms and unit tests, benchmarking and optimization 

o Understanding of Apple’s design principles and interface guidelines.

Job Title: iOS Developer

Location: Noida Sector 63

Experience - 1+ Years

About the Role:

We are seeking a talented and motivated iOS Developer with 2+ years of experience to join our growing mobile development team. In this role, you will be responsible for designing, developing, and maintaining high-quality iOS applications that deliver an exceptional user experience.

Qualifications:

B.Tech in Information Technology or Computer Science, or

M.Tech in Information Technology or Computer Science, or

MCA (Master of Computer Applications).

Key Skills & Experience:

Proven experience in Swift and Java programming.

Strong hands-on knowledge of SwiftUI, UIKit, and Apple’s core frameworks.

Proficiency with Xcode IDE and iOS app architecture.

Experience integrating and working with Firebase services.

Good understanding and implementation of MapKit.

Strong background in integrating third-party dependencies, libraries, and SDKs

Solid problem-solving and debugging skills.

Familiarity with RESTful API integration and mobile app design best practices.

Experience with the entire App Store submission process is a plus.

Responsibilities:

Design and develop robust, scalable, and reusable iOS applications.

Collaborate closely with designers, product managers, and other developers to deliver high-quality features on schedule.

Write clean, maintainable, and efficient code following industry best practices.

Perform unit and UI testing to ensure application performance, quality, and responsiveness.

Identify and correct bottlenecks, fix bugs, and continuously discover, evaluate, and implement new technologies to maximize development efficiency.

Integrate and manage third-party libraries and dependencies as needed.

Ensure the performance, quality, and responsiveness of applications across various iOS devices.

Participate in code reviews and contribute to team knowledge sharing.

What We’re Looking For:

A proactive, self-motivated developer with strong analytical and problem-solving skills.

A team player with excellent communication and collaboration abilities.

A passion for staying up-to-date with new trends and advancements in iOS development.

A commitment to delivering high-quality, user-centric products.

Is your next career move to lead a team of iOS developers and spearhead the development of cutting-edge iOS applications to enhance user experience and advance DAZN's OTT platform?

DAZN is a tech-first sport streaming platform that reaches millions of users every week. We are challenging a traditional industry and giving power back to the fans. Our new Hyderabad tech hub will be the engine that drives us forward to the future. We’re pushing boundaries and doing things no-one has done before. Here, you have the opportunity to make your mark and the power to make change happen - to make a difference for our customers. When you join DAZN you will work on projects that impact millions of lives thanks to your critical contributions to our global products

This is the perfect place to work if you are passionate about technology and want an opportunity to use your creativity to help grow and scale a global range of IT systems, Infrastructure and IT Services. Our cutting-edge technology allows us to stream sports content to millions of concurrent viewers globally across multiple platforms and devices. DAZN’s Cloud based architecture unifies a range of technologies in order to deliver a seamless user experience and support a global user base and company infrastructure.

This role will be based in our brand-new Hyderabad office. Join us in India’s beautiful “City of Pearls” and bring your ambition to life.

Lead IOS Developer

Responsibilities

• Work in a fun and fast-paced environment.
• 2-3 years’ experience in leading development teams
• Participate in requirements gathering, design, development, QA, support.
• Communicate with different stakeholders such as QA, Project Managers and Product Owners
• Discover, evaluate, and implement new technologies to maximize development efficiency.
• Groom, mentor and upskill team members with modern technologies and development practices
• 
  

Key Competencies:

• 6-8 years of experience in IOS Development using Objective-C/Swift
• Strong knowledge of IOS frameworks such as Core Data, Core Animation etc.
• Strong command over Apple’s design principles, Interface guidelines, platform's advantages & limitations.
• Strong knowledge of design patterns
• Experience with consuming RESTful web services
• Experience with offline storage, threading, and performance tuning
• Experience with the latest development paradigms like functional and reactive programming

Good to have skills:

• Knowledge of cloud-based services like AWS and GCP.
• Working knowledge of Video streaming and playback
• Knowledge of modern programming paradigms like functional and reactive programming.

At DAZN, we bring ambition to life. We are innovators, game-changers and pioneers. So if you want to push boundaries and make an impact, DAZN is the place to be.

• We run functional teams based on the SCRUM methodology and are a fairly Agile environment, with 2-week sprints and teams with a minimum of 2 developers (preferably 3) plus a Platform Owner.
• Sprints cannot be interrupted and work is planned out well in advance to keep stress down to a minimum.

• Line by line code reviews for every pull request on Gitlab maintains code quality, and keep everyone in the loop & learning.
• At least 2 people working together on every project (collaborating not pairing)

• Swift is strongly preferred
• Experience with clean architecture, MVVM, and other design patterns
• Master Storyboards and auto layouts
• Familiar with RESTful web service
• Experience with Static Frameworks
• Great logic and problem-solving skills
• Practical understanding of Continuous Integration and Delivery

• A resume in pdf format. Include into your resume the links to software, mobile apps, your coding samples so we can see proof of your talents.

iOS Developer responsibilities include: 
Designing and building advanced applications for the iOS platform Collaborating with cross-functional teams to define, design, and ship new features. Unit-testing code for robustness, including edge cases, usability, and general reliability. Job brief We are looking for an iOS developer who possesses a passion for pushing mobile technologies to the limits and will work with our team of talented engineers to design and build the next generation of our mobile applications.

Responsibilities

Design and build advanced applications for the iOS platform Collaborate with cross-functional teams to define, design, and ship new features. Unit-test code for robustness, including edge cases, usability, and general reliability. Work on bug fixing and improving application performance. Continuously discover, evaluate, and implement new technologies to maximize development efficiency.

Requirements 
MCA / BE /B.Tech Computer Science / IT Proven working experience in software development Working experience in iOS development. Have published one or more iOS apps in the app store A deep familiarity with Objective-C, Swift and Cocoa Touch Experience working git.

About the job

Are you passionate about coding ? Do you have a great appetite for challenges? Do

you like to take risks? Do you have a great learning attitude? Do you have an eye

for detail? Do you like to help others solve their problems?

We are offering:

To be a part of the leading Digital healthcare platform.

You can be CEO of your outcomes.

A team of aces to work with Streamlined engineering

processes woven

around Agile methodology with the help of tools

Become a leader in the industry

End user focusing engineering.

What

are you bringing on the table:

1-5 years hands on experience developing iOS Applications

Have a deep familiarity with objective-C/Swift, Cocoa Touch and working with

external frameworks and libraries

Have excellent problem solving/Debugging skills and love technical

challenges. Should be up to date on the current state of the iOS development

ecosystem.

Should

be a stickler for clean and efficient Code.

Should

possess excellent written and verbal communication skills.

Should

be highly organised.

Should

be able to weigh several and often conflicting constraints

and make

rapid decisions in a fast-moving and quickly-growing company.

Experience with TDD, CI/CD is required.

Help set and fulfil the engineering hiring plan for the team, including sourcing,

screening, and interviewing.

Mentor and grow engineers while keeping them engaged and focused on the

product and company vision.

Help set team goals and technical direction while ensuring that they

align

with the goals of the larger organisation.

Represent the team in planning and product meetings, effectively

communicating the available platform features and constraints of the iOS

client.

Help implement effective engineering processes and policies that emphasise

quality and forward progress.

With many people doing many things in a fast-moving company, strong

organisational skills both for yourself and for the team will be required

Support the entire application lifecycle (concept, design, test, release and support) on both Android and iOS
- Build a framework as the application grows so our Apps and SDKs are unanimous. 
- Produce fully functional mobile applications writing clean code 
- Gather specific requirements and suggest solutions 
- Troubleshoot and debug to optimise performance 
- Design interfaces to improve user experience 
- Liaise with Product team to plan new features 
- Ensure new and legacy applications meet quality standards 
- Stay up-to-date with new technology trends
- Work with latest Security protocols and data transfer optimisations

- Proven work experience as a Mobile developer with 3 - 5 years of experience. 
- Must be proficient in at least one programming language from Java, Swift & Objective C and must be willing to learn the other two. 
- Experience with third-party libraries and APIs 
- Familiarity with OOP design principles 
- Excellent analytical skills with a good problem-solving attitude 
- Ability to perform in a fast paced team environment
- Strong understanding of in-device security

Preferences:

If you have experience Building apps for fast-growing startups
- If you have hands-on experience on iOS and Android both
- If you have experience working with Flutter.

Note:Our Android application is being written in Java 
and iOS app in Objective C and Swift.

• Health Memberships 
• Sports Subscriptions 
• Entertainment Subscriptions 
• Key Conferences and Event Passes
• Learning Stipend 
• Team Lunches and Parties 
• Travel Reimbursements 
• ESOPs 

Thast what we think would bloom up your personal life, as a gesture for helping us with your talents.

Join us to be a part of our Exciting journey to Build one Digital Identity Platform!!!