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.

Responsibilities:

• Design and develop user-friendly, robust, and scalable Flutter/Android/iOS applications.
• Collaborate with product managers, designers, and backend developers to understand requirements and translate them into functional applications.
• Implement clean and efficient code following best practices, coding standards, and design patterns specific to mobile development.
• Ensure high performance, responsiveness, and stability of the applications by conducting thorough testing and debugging.
• Integrate RESTful APIs to fetch and send data from/to the backend servers.
• Work with SQLite or other database technologies to implement data persistence in mobile applications.
• Implement effective UI/UX designs following Material Design guidelines to ensure a smooth and intuitive user experience.
• Collaborate with the team to identify and implement solutions to improve application performance, maintainability, and user engagement.
• Stay up-to-date with the latest trends, technologies, and best practices in mobile development and share knowledge with the team.
• Assist in troubleshooting and resolving issues reported by users or clients, providing timely and effective solutions.

LogiNext is looking for a technically savvy and passionate mobile application leader to cater to the development and launch of core mobile product features. You will help the team in building an awesome product with your optimized code. You will make a humongous impact on design, architecture, implementation and enhancement of the applications that exceed client expectations in terms of value and benefit.

You have hands-on experience in building secure, high-performing and scalable mobile applications. Your design intuition inclines towards usability, elegance and simplicity. You are biased towards open-source tools and existing frameworks. You have assisted in shipping applications with beautiful front-end and intelligent back end. You have demonstrated strong interpersonal and communication skills.

Responsibilities

• Develop cutting edge native Android or iOS applications for the mobile platform
• Build, test, maintain and enhance mobile apps having elegant and efficient UI/UX to enhance client experience
• Own features from their ideation, design, development, test, release and maintenance
• Be a resident expert of new trends and implement the latest Android/iOS features to maximize application performance
• Maintain high standards of quality and responsiveness through technical design analysis, code reviews and test automation
• Collaborate with a talented team of product managers, engineers, and designers
• Demonstrate high level of ethics, dedication and teamwork

Requirements

• Bachelor’s degree in Computer Science, Information Technology or related field
• 10+ years of experience in developing native Android or iOS mobile applications
• Strong knowledge of programming language in Swift or Java/Kotlin, SQLite and IDE like XCode or Android Studio
• Hands on experience in using Location Based Services, REST Web Services Integration, FCM, Firebase and Battery Optimization Techniques
• Strong experience in memory management, performance tuning and resource optimization
• Deep knowledge of mobile automation and unit testing frameworks
• Proven ability to drive large scale projects with deep understanding of Agile SDLC, high collaboration and leadership
• Experience in both Android and iOS applications is a plus
• Excellent written and oral communication skills, judgment and decision-making skills

Key Skills

• Must have experience building apps using fluter, good knowledge on dart. Preferably built and deployed couple of apps both on iOS and Android
• Good knowledge in integrating or developing app functions using firebase
• Must have ported at least 2 applications on iOS and Android platforms. Exposure to the entire build piepline is a must.
• Has good knowledge on how native android and iOS apps work. Must have experience building iOS native apps
• Has an understanding on Computer vision and basic deep learning concepts. Any prototypes of proof of concepts are a big plus.

What they need to do?

• Code - write or learn to write clean code, understand design patterns and develop a quick turnaround time to ship updates
• UI/UX - understand design guidlines and implement them in the project
• Communication - communicate project goals clearly to the team. Understand and convert project requirements in to actionable steps
• Documentation - maintain documentation to support product development

• HomeGround is an AI platform that helps aspiring cricketers and coaches level up thier training. We help our users get an equal opportunity to play, train for and achieve their goal by providing professional level training analytics right on the smartphone, no special equipment or sensors required.
• HomeGround is one of the Top 10 early stage sports tech startup selected by Startupbootcamp Australia

• Our team shares experience in product growth, marketing and deep learning. We are passionate about our work and are committed 100% to our startup.

• Solution design documentation, development ownership, mentoring and driving the most comprehensive trade terminal for our super users for the iOS Mobile platform
• Ensuring the team adhere to the best industry technical practices and meet the business objective
• Ensuring responsiveness of the application
• Monitor reliability and performance metrics of the system to provide an impeccable experience to the user
• Co-ordinate with developers, testers and keeps the product manager well informed of the status of the development effort to senior managers
• Mentoring of the team
• Code review of team members and code quality ownership
• Collaborate with team, cross-functional teams to define and design new features
• Work with data sources, APIs, 3rd party SDKs
• Unit-test code for robustness, including edge cases, usability and general reliability
• Work on bug identification and fixing
• Troubleshooting and triage of field issues
• Improving application performance
• App management and monitoring on iTunes
• Produce high-quality code and experience with security implementation
• identifying risks implementing security patches procedures
• Continuously discover, evaluate, and implement new technologies to maximize development efficiency
• Keep abreast of new trends and best practices in mobile development

• B.E., B.Tech., M.C.A. or equivalent technical qualification in Computer Science,
• Engineering or a related subject
• 7 to 10 years of proven software development experience in iOS development
• Experience in mentoring iOS developers
• Must experience with Swift
• Experience with Objective-C is a plus
• Experience working with remote data via REST and JSON must
• Experience with API integration, Third-party SDKs, Charts, Payment Gateway, Sockets is a plus
• Experience in HLD, LLD designing must
• Solid understanding of the full mobile development life cycle.
• Mobile Application security standards is a plus
• Experience in mobile app architecture, frameworks, design patterns must
• Experience in writing Unit Test cases is a plus
• Experience in performance measurement of application is plus
• Working knowledge of the general mobile landscape, architectures, trends, and emerging technologies
• Experience in using JIRA, TFS
• Experience of CI/CD pipeline with tools used for Code coverage, code bugs identification, test automation, GIT
• Experience in Firebase Crashlytics, Application Performance must
• Experience in driving scrum team and follow agile practices
• Fundamental knowledge of the BFSI sector is a plus
• Strong communication skills
• Project Estimation & Planning

Location : Chennai

Experience : 1 - 3 Years

Job type : Permanent

What you must have:

• Experience in iOS Development and / or apps on Apple store and must have handled atleast 2 projects.
• Software Development experience in Java, MVC / MVVM pattern, Objective C, Swift development.
• Familiarity with SDK Integrations, APNS, Cocoapods, Carthage, Networking, JSON structuring and working with REST APIs.
• Experience in collaborating on software projects using Git based Version Control Systems (FYI, we use Bitbucket).
• Bonus Points if you have:
• Have a basic knowledge of how Android Development works (for collaborating with the Android team and developing programming patterns which works for both Android & iOS)
• Have experience working in an E-Commerce project
• Have worked with graphic & memory optimization in apps
• Have a Github account with some cool projects in it.
• Have scary but amazing debugging skills.

Expectations:

• Passion to be a part of the Startup who are building something bigger than themselves.
• Ability to take responsibility and ownership of their roles and work through the challenges in a startup team.
• Your typical week:
• iOS Development of our Core product
• Keeping up with product release cycle

Skills:

• iOS Development, Version Control, CocoaPods, Storyboard, iOS Mobile Automation, Mobile Application Testing - Android iOS

Profile - iOS Developer

Exp- 3+ Years

Company Profile:

Saffron Tech Private Limited

Saffron Tech is a result driven digital transformation company in New Jersey (NJ) &

New Delhi. We are known for transforming businesses to digitisation. We are

providing development services and IT solutions to its clients across the globe. Being

in the field of IT for more than 10 years now, the company has successfully executed

over 1500 projects for its clients. Saffron Tech Pvt Ltd is a multi-faceted IT firm

adept at providing Web and Mobile Application Development, IT Offshore Staffing

and Digital Marketing Services.

We are servicing over 500 clients from across the globe. We are a strong 150+

member family at the moment working from state of the art office premises close to

Saket, South Delhi. Our primary operational markets are USA, UK, APAC and

Middle East. To know more about us and our brands please visit

http://www.saffrontech.net/

Role Purpose:-

 iOS App Design and Development

 Detailed Responsibilities description:-

 Analysis of requirements and specifications

 Understanding of standard specification like Bluetooth® LE and other IoT

standards.

 Analysis of project requirements, estimation of effort required for various tasks.

 Design, Development, Enhancement and Maintenance of iOS App

 Software design including architecture and UI design of iOS App in an Agile

environment.

 Development of iOS App in Swift 5 using XCode for iOS platform.

 Write code suitable for concurrent execution / multi-threaded environment.

 Deep debugging / troubleshooting of iOS Apps both in development and

production environments across Swift.

 Profiling and optimization of iOS applications

 Use crash logs / analytics to find issue on customers’ device.

 Use XCode instruments / other tools to profile software, find bottlenecks.

 Optimization of code, use of appropriate data structure and application of proper

algorithms.Must have skills:

 Good Team Player having ability to work independently with minimal

supervision.

 Hands-on programming knowledge of Swift & Objective-C on iOS platform.

 Basic knowledge of Core Bluetooth (BLE)

 Working knowledge of Core Data

 Extensive experience in using various architectures, frameworks and design

patterns in designing/refactoring highly optimized.

 Good knowledge of C, C++ and objective oriented programming.

 Hands-on knowledge of source control tools like GIT.

 Knowledge of creating frameworks and libraries / SDK on iOS platform.

 Experience in debugging and profiling iOS Apps.

 Understanding of Apple Coding, UI Design and API Guidelines.

 Experience of iOS App submission, distribution and review process.