IOS Developr

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:

    Responsibilities:

• iOS Development: Design, build, and maintain an efficient iOS-based SDK using Swift and Objective-C, while implementing new features and enhancing existing ones.
• Collaboration and Design: Partner with the UI/UX designer to develop a web app with a native mobile look and feel, and design APIs for WebView to enable backend interactions.
• Event Handling and Security: Implement event handling within the SDK, develop error handling frameworks, and ensure security best practices for the app and WebView.
• Testing and Documentation: Conduct thorough testing to ensure reliability and performance, and create clear documentation to support integration and team understanding.
• Continuous Improvement: Stay informed on emerging trends in mobile development to provide insights and recommendations for ongoing enhancement.

    Qualifications:

• Proven Expertise: Strong experience in mobile app development, primarily in Swift for iOS (Android experience is a plus), and familiarity with HTML, CSS, and JavaScript.
• SDK Development and Security: Experience in creating SDKs, crafting APIs, and following security best practices in mobile app development.
• Team Collaboration: Effective communication skills for working in small teams, potentially meeting with clients, and thriving in dynamic environments like startups.
• Adaptability: Ability to handle evolving project requirements and stay updated on the latest trends in mobile development.

NOTE: IT IS MANDATORY TO GIVE ONE TECHNICHAL ROUND FACE TO FACE.

iOS Developer

Experience 3-8 years

Job Qualifications and Skill Sets(T3-T4)

T3

1. Full-time undergraduate degree or above in computer and related majors

2. More than 3 years of iOS development experience, proficient in OC/Swifit language

3. Have good architecture and interface design capabilities, understand object-oriented design and design patterns, and be able to write high-quality code

4. Understand performance optimization, be familiar with Frameworks-related core libraries, multi-threading, data storage, network communication and other underlying principles

5. Have strong analytical and problem-solving abilities, quick learning ability, stress resistance, communication and collaboration skills

6. Proficient in the use of mainstream tripartite frameworks

T4

1. Full-time undergraduate degree or above in computer and related majors

2. More than 5 years of iOS development experience, proficient in OC/Swifit language

3. Have good architecture and interface design capabilities, understand object-oriented design and design patterns, and be able to implement reusable components with high quality

4. Familiar with performance optimization, familiar with Frameworks-related core libraries, multi-threading, data storage, network communication and other underlying principles

5. Have strong analytical and problem-solving abilities, quick learning ability, stress resistance, communication and collaboration skills

6. Applicants with experience in large-scale first-line Internet product development will be given priority

7. Applicants with development experience in large-scale project performance optimization, engineering efficiency optimization, cross-platform solutions, etc. will be given priority

8. Be familiar with one or more third-party source codes. You need to be familiar with and understand the design patterns and runtime source codes.

Note: Kindly apply only if your open to Work from Office Bangalore and available to join immediate to 10 days.

Interested candidates connect @Bhavani P on the LinkedIn or message your number/ id on the cut short chat.

As part of the Mobile SDK Engineering team at Flyy, here are some things you can expect:

• Take ownership and be responsible for what you build - no micromanagement
• Work with customer success team to enable Flyy customers to adopt Insights-led engagement in different industry sectors like e-Commerce, FinTech, OTT, Social, entertainment, travel, telco, food-tech etc.
• Explore the latest in topics like Mobile development, SDK, iOS, Android, tvOS various mobile hybrid frameworks and share with the team and more importantly, have fun while you work on scaling Flyy.

Skills Required :

• Minimum 2 years experience in Android
• Minimum 1 year of experience in Native Mobile Development
• Minimum 1 year of experience in React-Native/Flutter framework
• Should be thorough with different architectures used in Mobile Development
• In-depth knowledge and understanding of Android/iOS framework:
• Multithreading concepts
• Persistent data storage
• Rest APIs Implementation
• Should know the internals of the mobile build and distribution processes
• Ready to learn and develop in any cross-platform frameworks
• Should be able to capture bottlenecks and improve them without or little supervision
• Awareness of Secure Development process and practices
• Awareness on Information Security concepts and Best Practices

Good to Have:

• Knowledge of other cross-platform frameworks i.e., Cordova, Unity, etc
• Experience in working and shipping SDKs/plugins

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 tablet computers. 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 automatization

Skills

• Proficient with Objective-C or Swift.
• Familiarity with RESTful APIs to connect iOS applications to back-end services
• Knowledge of other web technologies and UI/UX standards
• Understanding of Apple’s design principles and interface guidelines
• Knowledge of low-level C-based libraries is preferred
• Familiarity with cloud message APIs and push notifications
• Knack for benchmarking and optimization
• Proficient understanding of code versioning tools (such as Git, Mercurial or SVN)
• Familiarity with continuous integration

Education Qualification:

• Undergraduate in Engineering related to Computer Science and Information Technologies and Postgraduate in Computer Science
• Shouldn’t have Backlog or Arrear.
• Must have completed at least 3 month course.

We are looking for a Flutter Developer responsible for creating multi-platform apps for iOS and Android using Google's Flutter development framework. The primary focus will be on creating new experiences and maintaining existing apps. Deep experience contributing to and managing high-scale production mobile apps. You must have strong previous experience in Flutter and Dart development.

Requirements :

• Good exposure to integration projects.

• Hands-on experience and expertise in Building interfaces with Android SDK, Android Studio and development.

• Rest Api knowledge.

• Expertise in Android Flutter.

• Passion for best design and coding practices and a desire to develop new creative ideas.

• Skills required teamwork, leadership, and self-motivated.

• Adaptive to learn any technology.

Responsibilities :

• Design and Build sophisticated and highly salable apps using Flutter.

• Collaborate with cross-functional teams to define, design, and ship new features.

• Work with outside data sources and APIs.

• 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.

Responsibilities:

·       Develop and maintain mobile applications using Flutter framework

·       Work with UI/UX designers to implement engaging and intuitive user interfaces

·       Collaborate with back-end developers to integrate with RESTful APIs and other services

·       Participate in code reviews and provide constructive feedback to improve code quality

·       Stay up-to-date with emerging trends and technologies in mobile app development

·       Participate in Agile development process, including sprint planning, daily stand-ups, and retrospectives

·       Debug and troubleshoot issues reported by end-users

·       Contribute to the development of project plans, timelines, and budgets

·       Communicate effectively with team members and project stakeholders

Requirements:

·       Bachelor's degree in Computer Science or related field

·       Strong experience with Flutter framework and Dart programming language

·       Experience with mobile app development for both iOS and Android platforms

·       Strong understanding of software design patterns and architectural principles

·       Strong debugging and troubleshooting skills

·       Experience with Agile development methodologies

About Plum

We are making health insurance - simple, accessible and affordable. Hundreds of businesses of all sizes from startups to large corporates trust Plum for their employee's health protection.

Healthcare in India is seeing a phenomenal shift. Healthcare cost is seeing an inflation that is three times the general inflation. Treatments of diseases including Covid-19 can wipe out entire household savings. The majority of Indians won't be able to afford health insurance on their own. As many as 600mn Indians would depend on employer-sponsored insurance.

Enter Plum. Plum is re-imagining the health insurance stack and accelerating the penetration of health insurance in India to 100%. Plum has forged new underwriting and fraud detection algorithms to enable companies as small as 2 to benefit from group insurance. The platform enables realtime insurance design & pricing to enable companies to buy insurance in 3-clicks. And offers employees hassle-free claims experience through an integrated digital process.

Plum is backed by leading global investors including Tiger Global, Sequoia Capital, Tanglin Ventures and Incubate Fund (read more https://www.plumhq.com/blog/plum-series-a-funding">here)

• Design, build, and maintain high-performance, reusable, and reliable Java code. 
• Translate designs and wireframes into high-quality components and modular code, ensuring the best possible performance, quality, and responsiveness of the application
• Strong advocate of Google’s iOS design principles and interface guidelines
• Strong sense of ownership and integrity demonstrated through clear communication and collaboration.
• Having experience with building and maintaining an open source project or design library is a plus. 

• 3 + years of experience of iOS SDK, Swift and how to deal with different screen sizes. 
• Experience with local databases, offline storage, threading, and performance tuningFamiliarity with RESTful APIs to connect iOS applications to back-end services
• Familiarity with the use of additional sensors, such as camera, gyroscopes and accelerometers
• Knowledge of the open-source iOS ecosystem and the libraries available for common tasksAbility to understand business requirements and translate them into technical requirements

Designation: Senior iOS Developer

Qualification: BCA/BTECH/BSCIT/BE/MCA/MTECH/MSCIT/ ME with relevant skills and interest may apply.

Salary: 30000 – 50000 per month

Experience: 3+ Years

Location: Mahape, Navi Mumbai (Work from Home for Next 4-5 months post that It can be working from office but people who just want to work from home are also welcome)

Job Profile/Description:

a) 3+ years of experience in Native iOS Application development.

b) Experience on iOS, iPhone SDK, Objective-C/Swift, Xcode & Interface Builder, MacOS,

Auto-layout, Autoresing.

c) Experience with Core Data, SQLite, Location Based Services added advantage.

d) Understanding of building App that utilizes web-services to tie applications to server-side APIs,

via REST and SOAP.

e) Experience with the implementation of third-party libraries and API.

f) Working knowledge of the general mobile landscape, architectures, trends, and emerging

technologies.

g) Should be aware of platform-independent mobile application development trends/ tools

h) Experience in developing enterprise mobility is desirable

i) Good interpersonal skills, for effective communication with business and development teams

j) Proven track record of successful and timely project delivery

k) Well Conversant on iOS along with other mobile platform for Mobile Application

l) Development and integration.

m) Should have executed at least three projects from start to finish in iOS

n) The position requires an expert understanding of complex, multi-phased projects and the

o) Understanding of apple design principles and interface guidelines.

P) Experience in uploading iOS apps on the App Store.

q) Candidate should be Quality and cost-driven with strong oral and written communication,

interpersonal skills.

r) Motivated to learn and implement new processes and technologies.

s) Candidate must have the ability to perform under a stringent timeline.

t) Should be a good Team player and team mentoring.

u) Contain good knowledge of different iPhone and iPad devices screen resolutions.

v) Proficient in code versioning tools including Mercurial, Git, and SVN.

w) Experience with performance and memory tuning with tools (such as Instruments and Shark,

depending on project needs)

x) Knowledge of Flutter will be nice to have

Only applicants who are available full time for a minimum duration of 1 year can apply.