ARUN JAYAKUMAR

Led the design, development, and deployment of complex mobile solutions for a user base of 40,000+, conducting rigorous architectural reviews to ensure alignment with enterprise patterns. Designed and integrated GraphQL schemas, mobile middleware, and real-time messaging; drove the adoption of lean software development, TDD, and CI/CD; enabled AI-assisted development and robust testing, with end-to-end verification of AI-generated outputs. Worked on mobile development across backend & middleware, real-time messaging, architecture & design, and engineering practices using Flutter (Dart), iOS (Swift, UIKit), and Android; integrated Firebase Cloud Messaging, WebSockets, and Kafka/JMS for event-driven integrations. Employed UML/OOAD, design patterns, and low-level design; implemented automated testing, secure coding, and deployment workflows; used Git/Jenkins, Docker, MySQL, and monitoring/logging tools; practiced Scrum with backlog refinement and on-call support.

Led the design, development, and deployment of complex mobile solutions for a user base of 40,000+, conducting architectural reviews to ensure alignment with enterprise patterns. Designed and integrated optimized GraphQL schemas; collaborated with backend teams on mobile middleware, microservices, and orchestration layers to improve scalability. Drove lean software development, TDD, and CI/CD, establishing automated quality gates and deployment workflows. Leveraged Generative AI tools for rapid code generation, refactoring, and automated test creation, while performing rigorous verification of AI-generated outputs. Technologies include Flutter (Dart), iOS (Swift, UIKit), Android; GraphQL, REST; FCM, WebSockets; Kafka/JMS; OOAD, UML; TDD, DevOps; Git, Jenkins, Docker, MySQL; Scrum, on-call support.

Developed mobile applications using Flutter and native frameworks; integrated Firebase, Maps, push notifications, and third-party SDKs; implemented unit testing and automated testing practices; collaborated with cross-functional teams in Agile environments; maintained and improved product reliability; mentored junior engineers and contributed to coaching and code reviews.