Android 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.

What will you do? (but not limited to)

• Design, develop, and maintain our mobile applications using either Flutter or React Native, ensuring high performance and responsiveness across both Android and iOS platforms.
• Collaborate closely with the product and development teams to design and develop innovative features that align with our mission and user needs.
• Write clean, maintainable, and efficient code that adheres to industry best practices, and conduct code reviews to uphold high-quality code.
• Troubleshoot, debug, and upgrade the software to ensure optimal performance, security, quality, and responsiveness of applications.
• Lead and mentor junior developers, fostering a culture of continuous learning, innovation, and improvement.
• Drive architectural decisions and lead efforts to scale and improve our codebases.
• Work closely with stakeholders to understand and address their needs, translating business requirements into technical solutions.

Who can apply?

• Minimum 3 years of experience as a Mobile Application Developer with a proven track record in developing and deploying mobile applications for both Android and iOS platforms.
• Proficiency in React Native, with a deep understanding of cross-platform mobile development and app architecture.
• Strong knowledge of JavaScript (for React Native), and familiarity with native build tools, like XCode, Gradle, Android Studio, IntelliJ, and other IDEs.
• Strong problem-solving skills, with an ability to think algorithmically and a keen eye for debugging and optimizing code.
• Experience with app development languages such as Swift, Kotlin, or Objective-C and with utilizing RESTful APIs for backend integration.
• Proficient understanding and utilizing code versioning tools, such as Bitbucket.
• Experience in a startup environment and building products from scratch is highly preferred.
• Excellent communication skills, with the ability to lead and inspire a team.
• Strong project management skills, with experience in agile methodologies.
• Demonstrated ability to make sound decisions based on a balance of data, experience, and judgment.

Job Description: Angular Developer

We are looking for an Angular Developer responsible for the client side of our service. Your primary focus will be to implement a complete user interface in the form of a mobile and desktop web app, with a focus on performance. Your main duties will include creating modules and components and coupling them together into a functional app. The artistic design will be delivered to you, together with a few HTML templates, but we will ask for your help in regard to animations, CSS, and final HTML output. You will work in a team with the back-end developer, and communicate with the API using standard methods. A thorough understanding of all of the components of our platform and infrastructure is required.

Responsibilities

· Delivering a complete front end application

· Ensuring high performance on mobile and desktop

· Writing tested, idiomatic, and documented JavaScript, HTML and CSS

· Coordinating the workflow between the graphic designer, the HTML coder, and yourself

· Cooperating with the back-end developer in the process of building the RESTful API

· Communicating with external web services

Experience Required: Minimum 2 – 4 years.

Skills and Qualifications:

· Proficiency with JavaScript , HTML5, Core Java and Angular (6 and above)

· Professional, precise communication skills

· Deep knowledge of Angular practices and commonly used modules based on extensive work experience

· Creating self-contained, reusable, and testable modules and components

· Ensuring a clear dependency chain, in regard to the app logic as well as the file system

· Ability to provide SEO solutions for single page apps

· Extensive knowledge of CSS and JS methods for providing performant visual effects and keeping the framerate above 30fps at all times

· Thorough understanding of the responsibilities of the platform, database, API, caching layer, proxies, and other web services used in the system

· Validating user actions on the client side and providing responsive feedback

· Writing non-blocking code, and resorting to advanced techniques such as multi-threading, when needed

· Creating custom, general use modules and components which extend the elements and modules of core Angular

· Experience with all levels of operation available to the front-end, such as from creating XHRs in vanilla JS to using a custom wrapper around $resource

· Experience with building the infrastructure for serving the front-end app and assets

· Architecting and automating the build process for production, using task runners or scripts

· Documenting the code inline using JSDoc or other conventions

· Writing extensive unit tests using automated TDD tasks

· Creating e2e test suites for all components, and running them with Protractor (or a well-reasoned alternative)

· Creating configuration, build, and test scripts for Continuous Integration environmen

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

Desired Profile :

B.Sc. (CS or IT) + MCA/ BCA + MCA/ B.Tech. /B.E. (CS or IT) .

Experience required- 1 - 2 years

- Subject Proficient in Java/Kotlin programming

- 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 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 similar environment

- Complete understanding of SDLC

- Experience with Agile development

- Experience with Material Design and Android UI design principles, patterns and best practices

- Good knowledge of adding third-party libraries for Eg. Twilio

- Ability to understand business requirements and translate them into technical requirements

Hi,

Anju Siima Technologies Pvt Ltd. is a leading software company seeking creative and skilled developers to join our fast growing team. Our mission is to design and develop technology that improves the lives of its users, while providing an exceptionally high level of service to our clients.

We are looking for experienced developers who want to be part of a fast-paced, dynamic environment, where everyone’s opinions and efforts are valued. We hire outstanding professionals and give them the opportunity to thrive in a collaborative atmosphere that values learning, growth, and hard work.

Our team of 16+ professionals is working on Guntur and Hyderabad branch, Additionally, many of our team members who aren’t located near one of our offices, work remotely. We provide a highly competitive compensation and benefits package.

Job Description

We are looking for a Dart/Flutter Developer responsible for creating multi-platform apps for iOS and Android using Google’s Flutter development framework. The primary focus will be on creating new experiences and maintaining existing apps. Deep experience contributing to and managing high-scale production mobile apps. You must have previous experience in Flutter and Dart development.

Responsibilities

• Design & implement new app modules based on the product requirements using Flutter framework
• Maintain existing codebases
• Build reusable code and libraries for future use
• Integrate user-interfaces elements developed by other developers
• Build user interfaces designed by UI/UX designers
• Integration of data storage solutions
• Integrate various APIs from third parties
• Debug existing apps components, fix issues and avoid regressions
• Collaborate closely with the teams of UI/UX designers, PMs, QAs, and other developers
• Participate in software architecture, design discussions and code reviews
• Optimize application for maximum speed and scalability
• Follow the company guidelines and best practices

Skills And Qualifications

• You have a bachelor’s degree in computer science or related discipline
• Must have built at least two Android and/or iOS apps with Flutter 
• Proficient in Java/Kotlin programming
• 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
• Experience with third-party libraries and 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 development IDE Android Studio, Android SDK, Firebase Test Lab.
• Experience with offline storage, threading, and performance tuning.
• Experience with Mobile design patterns e.g MVVM, GoF, Bloc, Provider & etc.
• Experience in writing secure mobile applications (OWASP Mobile Top 10)
• Familiarity with push notifications
• Familiarity with IOS integration with Flutter
• Experience using GitHub or similar environment
• Complete understanding of SDLC
• Experience with Agile development
• 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)