Vino Bakkiyarasu

• Executed a planned relocation to facilitate family needs during maternity leave.
• Continued learning and skill refresh in React 19, Redux Toolkit, JavaScript (Es6+), Typescript, Tanstack Query and Tailwind CSS.
• Completed online courses and hands-on practices to stay updated with modern front-end trends. GitHub: https://www.github.com/VinoBakkiyarasu/portfolio-site
• Preparing to re-enter the workforce with a total of 9+ years' experience and 5+ years in React development experience.

AMEX - Loyalty and Gift Cards
A platform enabling card members to redeem Membership Rewards points for retail, dining and entertainment.

• Delivered ongoing enhancements and modernization updates for the ReactJS‑based Amex Loyalty & Gift Card application, strengthening platform stability and expanding redemption capabilities for millions of card members
• Implemented UI components using modern React patterns—including hooks, functional components, optimized state management, and improved rendering strategies—resulting in smoother user interactions and faster page responsiveness.
• Improved front‑end maintainability by adopting component‑driven architecture, reusable UI modules, and cleaner ES6+ code structures, enabling quicker rollout of new features and reducing UI defects.

American Express Global Business Travel
A travel operations platform to manage travel bookings, itinerary servicing, GDS integration and operational support.

• Modernized the legacy Komodo travel‑operations application by re‑platforming it to a ReactJS architecture, leveraging Vite for lightning‑fast bundling and development builds, Tailwind CSS for utility‑first responsive styling, and ES6+ features to significantly enhance UI performance, maintainability, and developer productivity.
• Rebuilt outdated UI flows into fully componentized, modular React interfaces, implementing hooks, context‑based state management, and optimized rendering strategies that improved load times, reduced re‑render overhead, and enabled scalable development for future enhancements.
• Implemented Zod‑based schema validation for complex travel‑booking and itinerary‑servicing forms, ensuring type‑safe validation, reducing client‑side errors, and improving data integrity across GDS‑integrated workflows.
  Enhanced UI consistency and accessibility by adopting Tailwind CSS design patterns, improving styling efficiency, reducing CSS bloat, and accelerating front‑end development cycles.
• Collaborated closely with clients and business stakeholders to gather requirements, refine UI behavior, and deliver new features aligned with operational workflows—resulting in improved agent efficiency and reduced manual intervention across travel‑servicing teams.
  
  

Verizon - Optix Suite
An internal enterprise platform supporting pre-ordering, ordering and service delivery workflows for Verizon's telecom products.

• Led a cross‑functional engineering team in modernizing Verizon’s legacy Optix Ordering UI, driving the end‑to‑end migration to a scalable ReactJS‑based single‑page application (SPA). Delivered a fully componentized, responsive interface that reduced ordering time for Verizon customer care representatives by 30%, significantly improving operational efficiency and customer resolution speed.
• Implemented modern ReactJS patterns including reusable components, hooks, context‑based state management, and optimized rendering strategies, resulting in an improved UI performance and enabling faster feature development cycles.
• Directed sprint planning, and code quality governance, ensuring consistent engineering standards across the team and reducing front‑end defects through improved code practices.
• Supported Verizon’s Order‑Processing BAU platform by diagnosing production defects, implementing rapid fixes, and delivering incremental enhancements that improved system stability and reduced order‑processing disruptions, ensuring uninterrupted business continuity for high‑volume customer transactions.

VISA - Issuer processing
An issuer platform that powers Visa prepaid card programs by handling card issuance, activation, authorization, fraud checks and transaction lifecycle management.

• Upgraded legacy issuer platform from Tandem C to .Net Core framework improving performance, maintainability and long-term scalability.

Molina Healthcare
A care-management platform supporting Molina's Medicaid and Medicare operations for improved healthcare outcomes.

• Developed and maintained SSIS and SSRS packages to streamline ETL workflows and fulfill healthcare reporting requirements.