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 responsibilities:

• Design and develop high-volume, low-latency applications for mission-critical systems, delivering high availability and performance
• Contribute in all phases of the development lifecycle: concept, design, build, deploy, test, release to app stores, and support.
• Diagnose performance issues, fix bugs (including crashes and ANRs) to increase the functionality of the application
• Write well-designed, testable, efficient code
• Ensure designs are in compliance with specifications
• Prepare and produce releases of software components
• Support continuous improvement by investigating alternatives and technologies and presenting these for architectural review
• Collaborate with team members (product managers, developers, designers) to brainstorm about new features and functionalities.

• Knowledge and experience in Flutter Framework and DART programming
• Hands-on experience in using RESTful APIs
• Hands-on experience in designing and developing micro-services architecture and containers
• Object-oriented analysis, UML, and design using common design patterns.
• Hands-on experience in the development IDE Android Studio, Android SDK, Firebase Test Lab
• Experience with offline storage, threading, and performance tuning
• Familiarity with push notifications
• Familiarity with IOS integration with Flutter
• Experience using GitHub or a similar environment
• Experience with Agile development is a plus
• Experience with Material Design and Android UI design principles, patterns, and best practices
• Good knowledge of adding third-party libraries
• Ability to understand business requirements and translate them into technical requirements
• Working knowledge of the general mobile landscape, architectures, trends, and emerging technologies
• A track record of delivering successful complex consumer product apps (finance apps, e-commerce apps)
• Critical thinker
• Knoweldge on Adobe XD/ Figma/ Sketch
• knowledge on GetX will be plus

Lead/Principal Engineer – Android

We are looking for talented engineers who are passionate about using software engineering to make kids love to learn and redefine learning@home at BYJU’S. You will have an opportunity to work in a highly motivated fast-paced environment in a fastest-growing Ed-Tech company. You will be building platforms and services to be used across various products. You will have the opportunity to create a significant impact on our systems, our business and most importantly on the life of millions of our students as we take on challenges that will reshape the education industry. You will operate at the intersection of diverse disciplines - Backend, Frontend, Big Data, ML, Computer vision and Multiple programming languages. You will build solutions for Byju’s core learning Apps, co-branded platforms, new launches, product development & innovations and personalized learning experiences.

We are looking for smart people with excellent technical skills and a can-do attitude. Candidates should be eager to learn, flexible to pivot when needed, savvy enough to thrive in a dynamic environment and should possess a growth mindset.

• Leads more than one projects end-to-end and collaborates across functions. Drives planning, estimation and execution.
• Manages stakeholder expectations and offers scalable, reliable, performant and easy to maintain solutions.
• Consistently takes well thought technical/design decisions.
• Develops expertise in more than one area and shares knowledge with others. Able to mentor/train people in areas which are new to them.
• Drives people to solve engineering challenges.
• Enjoys high respect of Tech and other cross functional teams.
• Demonstrates effective communication with project team, management and internal/external clients as necessary.
• Surfaces both technical and non-technical team challenges and helps resolve them.
• Champion for SDLC best practices and high-quality standards.
• Significantly contributes in hiring high performance candidates.

• Expert in JAVA, Kotlin, Reactive programming, Asynchronous programming and Dependency Injection. Experience with unit-tests and automation frameworks.
• Familiarity with any architectures like MV*(MVP/MVVM/MVI).
• Strong focus on high-quality mobile UI experiences.
• Operates independently with almost no oversight.
• Is able to apply domain expertise to think critically and make wise decisions for the team, taking into account tradeoffs and constraints.
• Communicates tech decisions through design docs and tech talks.
• Has delivered multiple projects with end-to-end engineering ownership.
• Keeps track of new technology/tools and embraces them as necessary
• 7+ years of experience in a product-driven organization.

Technologies we're working with

• MVP, JAVA and Kotlin, Realm, Firebase Real-time Database, RxJava,Kotlin Coroutines, Dagger and Retrofit.

Note- WFH currently

About Presidea Tech:

Presidea Tech was founded in 2020 to offer professional web and mobile-based services to businesses, worldwide. We provide a wide range of design and development services that are all delivered using the latest technologies with the greatest support. Our aim is to acquiesce our customers with the means to effectively commence and proclaim themselves online successfully. We go through our proven planning to help you build your brand, expand your web presence globally and establish more meaningful relationships with your customers. Our work philosophy is “Always deliver, more than expected” and we follow to convey more than what companies expect from our services.

Roles and responsibilities

• Design, develop and implement software programming applications.
• Build a highly scalable product.
• Participate in gathering business requirements and assessing existing architectures and resources.
• Work with the application development team in delivering the project and deliverable within time and with good quality.
• Perform unit testing, oversee quality assurance of applications through system testing.
• Establishes processes for performance and conducts code reviews.
• Manage and mentor junior members of the team on good coding practice

Skills and experiences

• E/ B.Tech in computer science or a related field.
• Efficient in Java, Spring Core, Spring Boot, Microservices
• Efficient in React native, React Js
• Experience with SQL/No-SQL database technologies – MySQL, Mongo dB, Cassandra, Redis, PostgreSQL, etc.
• Proficiency with Object-Oriented Design (OOD)
• Experience in Web services (REST or SOAP)
• Familiar with Agile SDLC and CI/CD
• Development experience in both mobile & web.
• End to end development experience is highly preferred
• Good understanding of unit testing methodologies.
• Startup work culture mindset.

About us: 

A new start-up is on the horizon, BroBazaar is a new age marketplace for the property market. BroBazaar, an iOS, and Android app enables the Builders, Brokers, and customers to close a property deal much faster than today and would also streamline the workflow with a great customer experience.  

Our team members are carefully selected, and the approach helps nurture entrepreneurship and great ideas into our solutions. We seek out multiple professionals who thrive in a congenial, start-up-focused atmosphere. 

Our team is friendly, focused, and a tad obsessive. The kind of people you’ll love working with. 

We are looking for a React Native developers between 1 to 3years of experience interested in building performant mobile apps on both the iOS and Android platforms. 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.

• Build pixel-perfect, buttery smooth UIs across both 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.
• Maintain code and write automated tests to ensure the product is of the highest quality.
• Transition existing React web apps to React Native.

ESSENTIAL SKILLS/ATTRIBUTES:

• Excellent knowledge of Android
• Appreciation for the limitations of handset development
• Attention to detail and subtleties of UI design and implementation
• Understanding of design patterns
• Ability to design for scalability and resilience
• Strong application process flow and problem solving techniques.
• Strong focus on refactoring and code quality
• Understanding of software configuration management and release management
• High levels of software engineering literacy and communication skills
• Friendly and professional manner
• Minimum 3 - 5 years java development
• Third Level Qualifications in computing, mathematics or science

DESIRED SKILLS:

• Experience of working in an agile environment
• Product development and lifecycle experience
• Experience of unit testing
• Scripting (JavaScript, Ruby, Python, Shell, etc.)
• Knowledge of build systems such as Maven and Gradle

• Candidate should be expertise in iOS technology.
• Experience with developing native Applications using Swift 3 , Xcode, Objective C, Cocoa and iPhone SDK.
• Built and published commercial iPhone and iPad applications
• Candidate must have independently designed and developed mobile applications
• independently drive the design and development of iPhone/iPad application project.
  Conceptualize and design Mobile applications based on need.
• Experience with Objective-C, JavaScript, and JSON
• Coursework in Object-Oriented programming languages (C++/Java, etc)
• Understanding of Apple’s design principles and interface guidelines Animation, etc.
• Candidate can develop Mobile Apps and well-versed with the Android SDK.
• Have a good knowledge of Java Application development.