React Native Developer

The Role:

We are looking for a Software Development Engineer (iOS) to join our Core Payments team at Razorpay. In this role, you will be responsible for developing and scaling our iOS SDK, the critical integration point used by thousands of merchants to process payments across multiple geographies.

You will work closely with product and backend engineering teams to design high-performance features, ensuring the SDK remains secure, lightweight, and developer-friendly. This role offers the opportunity to solve complex engineering challenges involved in building financial infrastructure that operates at massive scale.

Responsibilities:

• SDK Development: Contribute to the development of our native iOS SDK, ensuring high availability and seamless payment experiences for a diverse merchant base.
• Engineering Excellence: Write clean, maintainable, and modular code. Architect solutions that are resilient across different host app environments.
• Automation: Design and implement robust automation for tests, builds, and performance profiling. If a task is repetitive, you are expected to automate it.
• Instrumentation: Build deep telemetry within the SDK to provide real-time insights into success rates and latency, enabling data-driven product decisions.
• Security: Implement industry-standard security protocols, including SSL pinning and runtime integrity checks, to protect sensitive transaction data.

Mandatory Qualifications:

• 2+ years of experience in native iOS development using Swift.
• Systems Design: Solid understanding of OOPS principles and architectural patterns (e.g., MVVM, VIPER, or Clean Architecture).
• Cross-Platform Knowledge: Practical experience with bridge-based frameworks such as Flutter, React Native, or Cordova.
• Technical Depth: Strong proficiency in GCD, Swift Concurrency, and UIKit/SwiftUI lifecycles.
• Debugging: Proficiency in using Xcode Instruments for memory management, CPU profiling, and network debugging.

Good to Have:

• Android Stack Experience: Familiarity with Kotlin or Java is highly preferred to help maintain feature parity and align API design across platforms.
• Deployment & Tooling: Knowledge of CocoaPods, Swift Package Manager (SPM), or Fastlane for automated distribution.
• Open Source: Active contributions to GitHub or a portfolio of apps published on the App Store.

Job Functions / Responsibilities:              

• Collaborate with product managers, designers, and other developers to define and implement new features for our iOS mobile applications.
• Write clean, maintainable, and efficient code using React Native and JavaScript, ensuring the best possible performance and user experience.
• Troubleshoot and debug issues in the application to maintain its stability and reliability.
• Optimize mobile applications for performance and responsiveness.
• Stay updated with the latest industry trends and technologies to improve the mobile application continuously.
• Participate in code reviews to maintain code quality and provide constructive feedback to team members.
• Work closely with QA teams to ensure rigorous testing of the application.
• Provide technical guidance and mentorship to junior developers when necessary.

Skills:

·        4-6 years of professional experience in mobile application development.

·        Strong proficiency in React Native and JavaScript.

·        Extensive experience with iOS development, including Swift and Objective-C.

·        Knowledge of native iOS libraries and frameworks. Experience with third-party libraries and APIs.

·        Familiarity with RESTful APIs and integration.

·        Solid understanding of mobile app design principles and user interface guidelines.

·        You can work independently on solving complex problems and troubleshooting cryptic

bugs

·        Fluent in both spoken and written English

·        You're a team player and pragmatic programmer.

·        Proven ability to work in a fast-paced, collaborative environment.

·        Strong attention to detail and a commitment to delivering high-quality code.

·        Knowledge of Redux or similar state management libraries.

·        You're an avid clean coder, and refactoring is part of your normal workflow. 

Primary Skills : 

● 2+ year of experience developing React Native / Android applications.

● Excellent command over React Native ecosystem, Android Native SDKs, and third-party

SDKs.

● Firm grasp of the JavaScript language and its nuances, including TypeScript, ES6+ syntax

and tooling.

● Good knowledge and application of algorithms and data structures with space and time

complexities

● Ability to write well-documented, clean Javascript code with unit tests.

● Familiarity with native build tools like Gradle (Android Studio, IntelliJ)

● Follow Industry Coding standards & be responsible for writing maintainable/

scalable/efficient code to solve business problems.

● Knowledge of object-oriented programming

React Native, Typescipt/JavaScript, Redux and optionally Android

• Advise and discuss with the team on the architecture and requirements.
• Bring your experience for mobile User Experience.
• Set up actions to ensure high level of quality and satisfaction
• Build and maintain efficient and reliable code.
• Support continuous improvement by investigating alternatives and technologies.

• Bachelor’s Degree in Informatics Engineering or similar
• Minimum of 4+ years work experience in similar roles
• Strong knowledge in Front-end frameworks (React Native)
• Strong knowledge in the mobile language (swift, objective-c, java, kotlin)
• Experience in unit testing and TDD.
• Advance knowledge in using testing frameworks ( Karma, Jest, Appium, Cypress ).
• Experience with Agile Methodologies (Scrum, Kanban)
• Experience in CI/CD
• Having a coaching profile, good communication skills is crucial to ensure good exchange and sharing of information within and outside of the train
• Being able to provide based on the audience synthetic or detailed information is mandatory
• Being curious to continuously learn and being a leader in your domain of expertise
• Immediate or very low availability
• Fluent in English - written and spoken (mandatory)

Skills

• Have published at least one original React Native App.
• Experience with third-party libraries and APIs 

Role 

Should be able to single-handedly build performant mobile apps on the React Native platform. You will be responsible for architecting and building these applications, as well as coordinating with the teams responsible for other layers of the product infrastructure. Building a product is a highly collaborative effort, and as such, a strong team player with a commitment to perfection is required.

Responsibilities 

• Build pixel-perfect, buttery smooth UIs across mobile platforms.
• Leverage native APIs for deep integrations with both platforms.
• Diagnose and fix bugs and performance bottlenecks for performance that feels native.
• Reach out to the open-source community to encourage and help implement mission-critical software fixes—React Native moves fast and often breaks things.

React Native Developers

• l React Native
• l Redux and State Management
• l Experience with OIDC/OAUTH2
• l Git and Git Flow Processes
• l JavaScript (ES6 and ES.next)
• l Unit Testing (Jest, Jasmine or similar frameworks)
• l Server Side Programming (NodeJS, Express)
• l OpenAPI Spec

Position:  Cross Platform Mobile applications (Flutter or React native)

Responsibilities for Cross Platform Mobile Applications Developer

• Identify and plan for new features
• Develop application programming interfaces (APIs) to support Cross Platform mobile functionality
• Suggest and implement new mobile products, applications and protocols
• Remain up to date with the terminology, concepts and best practices for coding cross platform mobile apps
• Work closely with colleagues to constantly innovate app functionality and design
• Use and adapt existing web applications for apps
• Write unit and UI tests to identify malfunctions
• Communicate with users to understand their needs and experiences

What’s Make You Perfect fit for The Role

• Extensive knowledge of at least one programming language among on Flutter and React Native is mandatory.
• Knowledge of releasing applications on the App store or the Android market
• Familiarity with basic OOP design principles
• Well versed with third-party libraries and APIs
• Superior analytical skills with a good problem-solving attitude
• Ability to perform in a team environment / Individual contributor.
• Ability to interpret and follow technical plans