React Native Engineer

Job Description:

We are looking for a skilled React Native Developer to design, develop, and maintain high-performance cross-platform mobile applications for Android and iOS.

The ideal candidate must have strong command over React Native, TypeScript/JavaScript, and working knowledge of Kotlin (Android) or Swift (iOS) to build and integrate native modules when needed.

You will work closely with backend, design, and product teams to deliver seamless, fast, and stable mobile experiences for the ZestFindz ecosystem.

Key Responsibilities:

• Develop and maintain cross-platform mobile applications using React Native.
• Collaborate with design and product teams to deliver pixel-perfect, responsive UIs.
• Integrate REST APIs / GraphQL and handle authentication, caching, and error states efficiently.
• Implement and manage app state using Redux / Context API / Zustand.
• Optimize app performance, handle animations, memory leaks, and rendering issues.
• Manage offline storage using SQLite / AsyncStorage / MMKV.
• Configure and manage Firebase services - Auth, Firestore, Push Notifications, Analytics.
• Handle deep linking, in-app navigation, and app lifecycle events.
• Deploy apps to Google Play Store and Apple App Store (with signing, provisioning, versioning).
• Work with DevOps to integrate apps into CI/CD pipelines (Fastlane / GitHub Actions / Codemagic).
• Write clean, modular, reusable code with proper documentation and testing.
• Debug, profile, and optimize performance for low-end devices and weak networks.
• Ensure security best practices - secure token storage, environment management, and data encryption.

Must-Have Skills:

• Strong experience in React Native (0.70+) and TypeScript.
• Solid understanding of mobile architecture patterns (MVC, MVVM, Flux).
• Experience with React Navigation, Redux / Context API / Zustand, and API integration (Axios / Fetch).
• Familiarity with Firebase, App Permissions, and Push Notifications (FCM/APNS).
• Good understanding of Android Studio, Xcode, Gradle, and Cocoapods.
• Ability to write clean, testable code with unit and integration tests.
• Working experience with Git / GitHub / GitLab CI/CD.
• Problem-solving mindset and ability to debug across full mobile stack.

Good-to-Have Skills (Bonus):

• Knowledge of native SDK integrations (Maps, Camera, Payments, etc.).
• Experience with React Query / GraphQL.
• Familiarity with Fastlane, Crashlytics, App Center, or Sentry.
• Understanding of UX principles and animation libraries (Lottie, Reanimated).
• Experience with OTA updates (CodePush) and App Store Optimization (ASO).

JOB DESCRIPTION

Senior fullstack Mobile Developer

Company Description

Building the future of meat and seafood supply chain.We are building smart supply chain to deliver the highest quality seafood and meat for the Indian consumer. Our innovations in process management and workforce orchestration along with strong industry credentials are enabling us to deliver the fastest harvest-to-fork in the industry.Our endeavor is to leverage experience across various parts of the value chain – farming, production, delivery to marquee brands – to deliver similar value to the Indian consumers.

Job Description

As a senior full stack developer, you will contribute to our end to end supply chain platform. You'll work with all key stakeholders to deliver scalable, maintainable code and deliver amazing user experiences. We are building a design and process centric culture where you'll play a key role in the implementation of the foundation of all our systems. Up for a challenge?

You are:

• A self starter with a sense of what it takes to be successful as a team
• Agile - welcome change, do as less as possible and embrace continuous delivery
• Conscious about how quality is carried through from the UI to all layers underneath
• Passionate about design as a foundation of great user experience
• Opinionated, but flexible to accommodate the big picture

Responsibilities

• Analyse requirements, provide estimates and deliver code in an agile setup
• Stay on top of all owned work and raise red flags as early as possible
• Define the architecture, best practices and coding standards for full stack development.
• Support continuous technical improvement by investigating alternatives and technologies and present them for architectural review 
• Motivate team members, coach junior members and extend goodwill to other employees

Qualifications

• Prior startup experience, preferably with war stories to share
• 3-5 years of software industry experience
• Solid understanding of software design, development, testing, and problem-solving 
• Expertise in coding efficient, high quality and modularized software 
• Expertise in React Native and related ecosystem
• Expertise in at least one of native Android or iOS development
• Experience with GraphQL and other modern JS ecosystems
• Expertise in common design patterns and anti-patterns Javascript
• Experience with service-oriented architecture and microservices
• Expertise in relational and non-relational databases and expertise in at least one database system
• Experience with planning, execution and maintenance of test infrastructure for backend workflows
• Knowledge of AWS
• Knowledge of Unix shell and source control systems and tools such as git 
• Strong technical leadership skills
• Strong communication skills
• Technical mentoring skills

Great to have

• Experience with CI/CD and setting up a monitoring infrastructure
• Experience with Flutter
• Interest in blockchain and computer vision related ML systems
• Experience working on high traffic systems
• Bachelor’s degree in Computer Science or a related discipline

• Significant experience working with React web and mobile along with tools like Flux, Flow, Redux, etc.
• In-depth knowledge of JavaScript, CSS, HTML, functional programming, and front-end languages
• Strong knowledge of React fundamentals such as Virtual DOM, component lifecycle, and component state
• A complete understanding of the full mobile app development lifecycle right from prototyping
• Knowledge of type checking, unit testing, typescript, prop types, and code debugging
• Experience working with REST APIs, document request models, offline storage, and third-party libraries
• Strong understanding of web technologies like JavaScript, HTML, and CSS
• Knowledge of user interface design and responsive designs
• Well-versed in a variety of React Native software and technologies such as Jest, Enzyme, ESLint, and so on

We are looking for an experienced cross platform Mobile Developer with 2-5 years of building performant mobile apps on both iOS and Android platforms.  You are in top 5% of your field and are passionate about creating new products and innovative code.  We are building a solution that deploys elements of tokenization using block chain, ML driven portfolio selection and risk management, and a proprietary alternate secondary market for illiquid securities.  You would be developing and maintaining Cross platform Android and iOS applications. You will be working alongside other engineers and developers working on different layers of the infrastructure.

Key Requirements

• BE/ BTech or MTech/ Dual degree in Computer Science/ Software engineering or similar from a Tier 1 institute.
• Thorough understanding of Flutter and its core principles.
• Proficient in Dart6 Programming.
• Knowledge of Swift, Obj C, Xamarin & native build tools, like Xcode, Gradle (Android Studio, IntelliJ)
• Build pixel-perfect, buttery smooth UIs across both mobile platforms.
• Familiarity with RESTful APIs, JavaScript & React Native
• Leverage native APIs for deep integrations with both platforms.
• Diagnose and fix bugs and performance bottlenecks for performance that feels native.
• Maintain code and write automated tests to ensure the product is of the highest quality.
• Ability to understand business requirements and translate them into technical requirements
• A knack for benchmarking and optimization
• Be extremely conversant in table stakes software engineering toolchain - Linux/Shell, IDE’s, Git, Debuggers, Profilers.
• Strong knowledge of UI design principles, architecture patterns, and best practices for development.
• Ability to write well-documented, clean code
• Experience launching and managing production mobile apps
• Ability to deep dive into problem-solving and build elegant, maintainable solutions to complex problems, in addition to excellent interpersonal skills.

Job Description Responsibilities:

• Design and build mobile applications using React Native

• Build native component for iOS (Native experience would be plus) or Android

• Collaborate closely with the Team lead to understanding the requirement and implementation details.

• integration with third-party APIs.

Required Skills:

• 2yrs experience in React-Native based app development is a must.

• Must have published at least 1 major React-Native app

• Knows how to embed React-Native in a native(iOS/Android) component and vice versa

• Strong focus on app performance.