Summary
Overview
Work History
Education
Skills
Languages
Accomplishments
Timeline
Generic

R Arunachalam

Chennai

Summary

Skilled Frontend Engineer specializing in React and React Native, with experience in Java backend development using Spring Boot and microservices. Developed secure, high-performance FinTech applications and integrated RESTful APIs for scalable solutions. Focused on performance optimization and cross-platform development while collaborating across teams to deliver reliable financial systems.

Overview

4
4
years of professional experience

Work History

Professional Services Engineer II

FIS
Chennai
06.2022 - Current

Key Achievements

  • Delivered multiple production-ready React and React Native applications aligned with business and user requirements.
  • Developed Video Banking frontend POC from scratch, enabling real-time, secure video communication for banking applications.
  • Improved application performance, stability, and maintainability through reusable components and optimized state management.
  • Delivered projects on time and within budget, achieving functional and quality benchmarks aligned with stakeholder expectations.
  • Mentored junior developers, enhancing team code quality and accelerating development velocity through knowledge sharing.

React (Web) Development

  • Developed cross-platform mobile applications using React Native for iOS and Android.
  • Implemented custom UI components, forms, and user interaction flows in React Native.
  • Integrated third-party libraries using npm to extend application functionality.
  • Managed application state and API integration for smooth mobile performance.
  • Followed mobile-first and performance optimization best practices.
  • Mentored junior developers on React Native architecture and best practices.
  • Managed application state efficiently using Redux.

React (Web) Development

  • Designed and developed interactive, responsive user interfaces using React, HTML5, CSS3, and JavaScript.
  • Built reusable and modular UI components to support scalable frontend architecture.
  • Managed application state efficiently using Redux.
  • Integrated RESTful APIs for dynamic data rendering and seamless user experiences.
  • Collaborated closely with UX/UI designers to implement responsive and accessible designs.
  • Ensured cross-browser compatibility and optimized layouts using Bootstrap and Material UI.
  • Wrote unit and component tests using Jest and Enzyme to ensure code reliability.
  • Participated in code reviews, enforcing best practices and maintainable coding standards.
  • Troubleshot and resolved performance and production issues proactively.

Video Banking

  • Architected and developed a Video Banking frontend POC from scratch.
  • Implemented WebSocket-based signaling for real-time communication.
  • Established WebRTC peer-to-peer connections for secure, low-latency video calls.
  • Built resilient session and connection management to handle network disruptions.
  • Delivered a scalable, end-to-end working prototype validating real-time banking use cases.

Education

Bachelor of Engineering - Computer Science

Jeppiaar Engineering College
Chennai, India
05-2022

Skills

  • Full-stack development
  • React development
  • React Native development
  • API integration
  • API development
  • Redux state management
  • UI component design
  • Performance optimization
  • Cross-platform development
  • SpringBoot
  • Java programming
  • Agile methodologies

Languages

English
Proficient (C2)
C2
Tamil
Proficient (C2)
C2
Hindi
Intermediate (B1)
B1

Accomplishments

CTO Star Award, 2025 - Recognized for innovation in Video Banking, successfully designing and delivering a scalable, production-ready solution that demonstrated real-time performance and architectural excellence.

Timeline

Professional Services Engineer II

FIS
06.2022 - Current

Bachelor of Engineering - Computer Science

Jeppiaar Engineering College
R Arunachalam