Full Stack Developer(React + Kotlin)

Cognizant; Chennai District; On-site; INR 900,000 - 1,300,000; Full time

Job summary

Cognizant in Chennai, India, seeks an Architect with 7–11 years of experience to design and evolve complex hybrid mobile ecosystems using modern frameworks and middleware patterns, ensuring scalable architecture and high-quality user experiences across platforms for a global enterprise.

The role emphasizes collaboration with product and engineering teams, architecture governance, and robust REST API integrations, with hands-on work on React, Kotlin, and PostgreSQL to deliver reliable

Qualifications

• Extensive hands-on experience designing and architecting complex mobile applications.
• Middleware saga patterns and REST API integration expertise.
• Hybrid work environments and cross-platform frameworks experience.

Responsibilities

• Design robust end-to-end mobile app architectures for hybrid deployment.
• Document architecture blueprints for mobile layers and backend integration.
• Collaborate with product and engineering to translate requirements into designs for iOS, Android, and React Native.
• Guide teams on Redux state management and reactive programming with RxJava.
• Review and optimize REST API integration strategies for security and performance.

Skills

React

Kotlin

PostgreSQL

Job description

Job Summary

Architect role requiring seven to eleven years of experience to design and evolve complex hybrid mobile application ecosystems using modern frameworks and middleware patterns while ensuring scalable architecture robust integration with rest api based services and high quality user experiences across platforms for a global enterprise environment.

Essential Skills

• Frontend - React


• Backend - Kotlin


• DB - PostgreSQL

Responsibilities

• Design robust end to end mobile app architectures that align with enterprise standards and support scalable hybrid deployment models using native and cross platform frameworks to deliver reliable customer facing solutions


• Define and document architecture blueprints covering mobile app layers middleware saga patterns and integration with backend rest api services to ensure consistent performance and maintainability across environments


• Collaborate with product and engineering teams to translate business requirements into detailed technical designs for ios android and react native applications using swift ui kotlin and react js


• Guide teams in applying redux based state management and reactive programming principles with rx java to build modular testable and resilient mobile and web components


• Establish middleware saga orchestration patterns that coordinate complex workflows across distributed services to improve reliability fault tolerance and user experience in transaction heavy journeys


• Review and optimize rest api integration strategies including authentication data modeling and error handling to enhance security response time and overall system robustness


• Drive implementation standards for swift package manager and git workflows ensuring clean dependency management branching strategies and version control practices that support collaborative development


• Define and enforce testing strategies using mockito and other frameworks to achieve high code coverage predictable releases and early detection of integration defects across mobile and middleware layers


• Provide architecture governance through regular design reviews code walkthroughs and technical risk assessments to keep implementations aligned with reference designs and compliance requirements


• Analyze production telemetry and performance metrics from mobile apps and middleware services to identify bottlenecks and propose architecture improvements that enhance stability and user satisfaction


• Collaborate with ux and frontend engineers to ensure swift ui react native and react js solutions deliver intuitive accessible interfaces that align with brand guidelines while remaining technically efficient


• Champion reuse of components libraries and shared services across mobile and web platforms to reduce duplication shorten delivery timelines and create a consistent experience for end users


• Align architecture choices with organizational sustainability and societal impact goals by promoting solutions that support secure access inclusive design and reliable digital services for diverse user communities

Qualifications

• Demonstrate extensive hands on experience designing and architecting complex mobile applications using swift ui kotlin react native and react js in hybrid work environments


• Exhibit deep proficiency with middleware saga patterns rest api design rx java and integration strategies that support high volume and high availability transactional systems


• Apply strong skills in git based source control workflows swift package manager and dependency management practices that enable efficient collaboration and controlled releases


• Utilize advanced expertise with unit testing mocking frameworks such as mockito and continuous integration practices to maintain high quality standards across mobile and middleware codebases


• Possess proven ability to create clear architecture documentation communicate design decisions effectively and collaborate with cross functional teams while working in day shift hybrid models


• Show experience operating within large multinational organizations or similar scale companies delivering secure scalable and maintainable digital products that provide meaningful value to customers and society