Lead iOS Developer and Video Expert
SwiftResponsibilities:
- Develop, improve, and maintain the Rumbl iOS app.
- Ensure the performance, quality, and responsiveness of the app.
- Work closely with designers, backend developers, and QA.
- Define, design, specify, develop, test and ship new features in a timely manner.
- Proactively identify design.
- Implementation errors, performance issues, and bugs.
- Work with the team and fix them e2e.
- Follow process workflows to ensure a smooth operation on a daily basis.
- Work as part of a cohesive and friendly team.
- Build and Release management.
- Exceptional work ethic and enthusiasm to work in a fast-paced development environment.
- Team players with a can-do attitude.
- Efficient Storage Management (Realm.io), State Maintenance, and Memory Management
Requirements:
- Excellent knowledge of iOS dev architecture and platforms.
- Expertise in UI/UX/Motion design transfer to code.
- Proficiency and experience in Swift and Objective C.
- Expertise working with cameras, sensors, low-level 2D and 3D graphics development.
- Experience with Core Data and Core Animation.
- Deep Knowledge of REST APIs, API call processing, and Client back end management.
- Familiarity with Facebook, Snapchat, Twitter, analytics, and other external SDK integration.
- Familiarity with Push notifications, Firebase, and GCM.
- Familiarity with Sketch+Zeplin.
- Experience with benchmarking and optimization.
- Proficient in using Git.
- Working knowledge of Jira integration.
- Proficient in TDD.
- Experience leading a feature to completion and release.
- API processing/Performance optimization.
Shubham Vishwakarma
Full Stack Developer - Averlon
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React NativeSwift
KotlinPosition: 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.
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About the Role:
As one of our first mobile engineers in Bangalore, this is a great opportunity to make a significant impact in designing and building our new KeepTruckin Fleet Manager iOS app and as well as grow by working directly with experienced technology professionals with backgrounds from Silicon Valley companies like Google, Twitter, Facebook and Uber (to name a few). We are looking for candidates who have a familiarity with Objective-C and Swift, and a good understanding of system architectures (mvc, mvvm, redux) and a forward thinking mindset aimed at high readability (declarative) code, as well as identifying problems or bottlenecks before they become issues.
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Develop from scratch our new iOS KeepTruckin Fleet Manager AppWork with product team to refine feature specs, and work with cross functional teams like IoT, Embedded, Data Science/ML, Computer Vision & Motion teams to create fluid user experiences with interactive visualization for a multitude of data from these different teamsCommunicate with backend engineers about API requirements or refinements, and engage with the senior engineers for mentorship to learn & grow in your areas of interest. Analyze our user's data to identify bugs, and help support team to diagnose user problems Be able to work as part of a small, tightly knit team
What We're Looking For:
2-4 years of experience working on iOS apps. Proficiency in Objective-C, Swift, Storyboards, XIBs, and programmatic view layouts and transitionsAn understanding of Apple UI/UX and application design paradigmsAn appreciation and understanding of automated app testing. Knowledge or interest in commercial vehicles/trucking is a plus!Creating a diverse and inclusive workplace is one of KeepTruckin's core values.
We are an equal opportunity employer and welcome people of different backgrounds, experiences, abilities and perspectives.Please review our Candidate Privacy Notice here.
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- Collaborate with the team to define, design & ship new features.
- Identify & correct bottlenecks & fix bugs
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Follow CutshortShubham Vishwakarma
Full Stack Developer - Averlon