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.

Job Description

We are seeking an experienced and highly skilled Senior Android Developer to join our Banking project team. As a Senior Android Developer, you will be responsible for designing, developing, and maintaining the Android Application for our service-oriented project. This is an excellent opportunity to work in a dynamic and collaborative environment, leveraging the latest technologies to deliver cutting-edge service.

Responsibilities:

• Collaborate with cross-functional teams to design, develop, and deliver high-quality Android applications with a strong emphasis on user experience (UX).
• Utilize architecture patterns and best practices for scalable and maintainable code.
• Implement reactive programming for efficient and responsive applications.
• Integrate third-party SDKs to enhance application functionality.
• Conduct regular code reviews to ensure code quality and adherence to best practices.
• Lead and contribute to sprint planning, dev analysis and ensure timely delivery of milestones.
• Manage and mentor team members, fostering a collaborative and productive work environment.
• Communicate effectively with clients to understand requirements and provide updates on project progress.
• Improves testability, team documents.
• Stay updated with the latest trends and technologies in Android development.

Qualifications:

• Bachelor's degree in Computer Science, Software Engineering, or a related field. Relevant experience 5 to 8 years.
• Proven experience as an Android Developer, preferably in a senior or lead role, with a strong focus on service-oriented projects.
• Good working knowledge of Android and Core Java.
• In-depth knowledge of architecture patterns such as MVP and MVVM.
• Experience with reactive programming using RxJava.
• Proficient in utilizing Dependency Injection tools.
• Hands-on experience with integrating third-party SDKs.
• Familiarity with Kotlin programming language.
• Excellent problem-solving and analytical skills, with the ability to debug complex issues and propose effective solutions.
• Proficiency in UI rendering and performance optimization.
• Demonstrated ability in team management, including sprint planning and handling deliverables.
• Effective communication skills for collaboration with cross-functional teams and clients.
• Ability to adapt to new technologies and learn quickly.

Good to have:

• Familiarity with Kotlin programming language.
• Backend understanding to facilitate effective communication with backend developers.
• Experience with cross-platform development frameworks (e. g., Flutter) is a plus.
• 
  

Our Culture and policies we believe in and live by at Nuclei:

• Profitable company with a team-first culture
• Everyone is encouraged to take decisions and lead. Complete freedom with responsibility.
• Work from anywhere - Goa or Bali or Ladakh - Permanently remote
• Unlimited leaves - There is no leave policy at Nuclei.
• 5 days working. Friday 2nd halves are focused on learning and development
• What we do is a part of work - Bookclub, Hackathons/ Ideathons, Chess club, Expert talks, etc. To explore opportunities to evolve ourselves as an individual and team.

What does the core role include?

• Designing and developing high-volume, low-latency applications for mission-critical systems and delivering high-availability and performance
• Designing stateless components in React Native
• Contributing in all phases of the development lifecycle
• Working with the developers to create and maintain a robust framework to support the apps
• Working with the developers to build the interface with a focus on usability features
• 
  

What else can you expect in the role?

• Prepare and produce releases of software components
• Optimizing performance for the apps
• Problem-solving skills, analytical mind, and positive attitude
• Ability to think from end users perspective and focused on improving the overall product experience.
• Deliver across the entire app life cycle concept, design, build, deploy, test, release to app stores and support
• 
  

What can fetch you brownie points?

• Hands on experience with React Native is required
• Hands-on experience in React Native APIs, ReactJS, Javascript, ECMAScript (OOJS) and JSX.
• Strong understanding of JavaScript ecosystem
• Hands on experience on Android in creating Hybrid / Native applications
• Demonstrable UI/UX experience on a large-scale app.
• Thorough understanding of React Native development tools like IDEs (Nuclide, Atom, Sublime Text, or Visual
• Good knowledge of JS frameworks like ReactJS is a plus.

Desired Skills and Experience

Hybrid Apps,React Native, Native iOS and Android Architecture understanding

Job Description

About:

Market network for digital creators. The platform provides a marketplace for YouTubers, twitch streamers, Instagrammers. It provides tools to creators to build their brand, business, and unlock new revenue streams while growing existing revenue streams.

Creators today find themselves at the mercy of social media platforms to get their content out in front of their fans. Its is a seed funded startup building a platform to encourage more creators to take full control of their growth, become self-sufficient, and not get exploited.Softwares have streamlined other industries to great benefit in the last 25 years. We think it’s inevitable that it will also happen in our ecosystem. In the last decade, we saw Shopify do that for e-commerce entrepreneurs and AngelList empower tech entrepreneurs. We want to do the same for media entrepreneurs. How do we plan on doing this? By helping creators globally to engage deeply with their fans and communities; monetize much earlier into their journeys of being successful independent businesses and empower them to effectively manage their business. The founding team of CreatorStack is a diverse mixture of seasoned technology entrepreneurs, musicians, content creators, and artists. We love solving problems. And we love solving them as a team. If you believe that chasing your creativity should be financially rewarding, then come join us.

Roles & Responsibilities:

• Work on a disruptive product that’s still in its early stages
• Be responsible for the development and maintenance of the CreatorStack mobile app aimed at iOS and Android
• Translate designs and wireframes into high-quality code
• Ensure the best possible performance, quality, and responsiveness of the CreatorStack app
• Mentor other engineers, define our technical culture and help to build a fast-growing team.

Must Have:

• Have experience in product development, architecture, and design for a 2 to 5 years
• Are proficient in Flutter language
• Have the ability to learn and look for ways to improve yourself and the processes around you
• Have strong knowledge of iOS and Android frameworks and the ability to deal with different screen sizes
• Are proficient with RESTful api's to connect mobile applications to back-end services
• Experience with storage, threading, and performance tuning
• The ability to mentor and support other team members by doing code reviews and applying your experience in process and technical leadership
• Experience working with agile team environments and if you are a self-starter, conscientious member of the team
• Good knowledge in pixel-perfect implementation of designs

Nice to have:

• If you have worked in a fast product-driven culture and have the ability to build an experience that solves users' problems - we like to work with team members who have a solid hold on product and design thinking
• If you have led teams in your past experiences
• If you also have experience in working with languages like React and Swift

Benefits :

• It is a market network platform for internet native digital content creators turns their passion into a profitable venture. Our products help them accelerate growth and increase direct monetization for creators around the globe

Senior Software Engineer, iOS

https://www.alivecor.com/">AliveCor, the pioneer of the smartphone EKG, with millions of EKGs from a large and growing user base, seeks a Senior iOS Software Engineer to contribute to the mobile application team. You will be an integral member of our engineering team, responsible for developing industry-leading mobile applications that transform the healthcare industry and affect the way consumers use, engage, and act on their health data.

• Collaborate closely with our AI, security, backend, hardware, and product teams to deliver mission critical software.
• Work in a fast-paced agile environment, delivering quality estimates, designs, and implementations.
• Problem solve for complex global business requirements.
• Accountable for all aspects of modern software development.
• Proactive in identifying problems and a team player when presenting solutions.
• Excellent communications skills.
• Commitment to delivering results.
• Passionate about continuous improvement.

• BE in Computer Science or a related discipline, or related practical experience.
• 5-8 years of iOS programming experience. You have shipped multiple apps to the App Store.
• Deep expertise with Objective-C and Swift.
• Experience with iOS frameworks such as Core Data, Core Animation, and Core Bluetooth.
• Experience with modern programming principles, design patterns and development tools.
• Familiarity with RESTful APIs to connect iOS applications to back-end services.

AliveCor is on a mission to define modern healthcare through data, design and disruption. We’ve pioneered the creation of FDA-cleared machine-learning techniques, transformed wearable medtech to put proactive heart care at everyone’s fingertips. Kardia is the most clinically validated mobile EKG technology. AliveCor was named as one of the Top 10 Most Innovative Companies in Health for 2017 by Fast Company as part of the publication’s annual ranking of the world’s Most Innovative Companies. AliveCor was awarded the 2015 Tech Pioneer by the World Economic Forum and one of the 50 Smartest Companies in 2015 by the MIT Technology Review. AliveCor recently announced a collaboration with Mayo Clinic that will result in new machine learning capabilities to unlock previously hidden health indicators in EKG data, potentially improving heart health as well as overall health care for a variety of conditions. AliveCor is a privately held company headquartered in Mountain View, CA.

AliveCor is an equal opportunity employer and will not discriminate against any employee or applicant on the basis of age, colour, disability, gender, national origin, race, religion, sexual orientation, or any other classification protected by federal, state, or local law.

Watch the following video demonstrating our product.

https://www.youtube.com/watch?v=8I9xosgA-Ig">KardiaMobile: How's your heart?
https://www.youtube.com/watch?v=8I9xosgA-Ig">https://www.youtube.com/watch?v=8I9xosgA-Ig

• Candidate Must be well versed with latest SDK versions, XCode, Objective C, Swift, UIKit, Cocoa etc.
• Expertise in integrating web services (XML/ JSon etc.) with iPhone applications.
• An experience in using Maps API, GPS services for iPhone/ iOS apps is required.
• Experience with third-party libraries and APIs.
• Working knowledge of the general mobile orientation, architectures, trends, and emerging technologies.
• Experience working with iOS frameworks such as Core Data, Core Animation, Core Graphics and Core Text, Core Location.
• To take care of build and release process (Adhoc releases, Final release).
• Should have worked on cocoa touch, story board, core data, auto layout.
• Hands-on experience in Cloud APIs, push notifications, social media integration, and integration of analytics is an added advantage.
• Must have good analytical, debugging, App publishing and problem solving skills.
• Self-starter having the ability to independently acquire the knowledge required in succeeding his job.