Aparna Sharma

Aparna Sharma

Senior Software Engineer at PayPal

Currently working
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Career Journey

Work Experience

From PHP and CMS platforms to leading full-stack teams building campaign management systems at PayPal — here is my journey across 8+ years of shipping real products.

8+ years experience5 companiesCurrently at PayPal
PayPal logo

PayPal

Working

Senior Software Engineer - Full Stack Developer

October 2025 – Present

Bengaluru, India (On-Site)

Technologies & Tools

  • React
  • Redux
  • TypeScript
  • Node.js
  • Express
  • RRedis
  • REST APIs
  • AWS

What I've done

  • Architected scalable campaign workflow architecture using Node.js (Express), Redis caching, and optimized data models, supporting 5K+ API requests/min and reducing response time by 40%.
  • Engineered backend systems with approval workflows, RBAC, and audit-ready APIs, handling 50K+ transactions/day and improving system reliability while reducing production issues by 30%.
  • Led development of Campaign Management (V2) UI using React.js and Redux, serving 80K+ users and improving workflow efficiency by 30%.
  • Built advanced features like Publish History, version diff, and rollback flows, reducing campaign errors by 25% across 10K+ campaigns/month.
  • Improved frontend performance by 35% through Redux caching and optimized state management for large datasets (100K+ records).
Dentsu / Merkle, a dentsu company logo

Dentsu / Merkle, a dentsu company

Aug 2021 – Oct 2025

Bengaluru, India (On-Site)

Technical Lead - Full Stack Developer

Nov 2024 – Oct 2025

Technologies & Tools

  • MongoDB
  • Express
  • React
  • Node.js
  • TypeScript
  • Kafka
  • RRedis
  • MySQL

What I've done

  • Led scalable application development using MERN, driving architecture and best practices.
  • Migrated monolith to microservices with Kafka, reducing downtime by 30%.
  • Implemented Redis caching and optimized backend services using Node.js.
  • Standardized APIs with Swagger and mentored developers across teams.

Senior Software Developer - Full Stack Developer

Apr 2023 – Oct 2024

Technologies & Tools

  • React
  • Redux
  • TypeScript
  • GraphQL
  • Node.js
  • FFormik
  • RQRTK Query

What I've done

  • Designed and built a reusable component library, standardizing UI patterns and accelerating development across multiple projects.
  • Implemented scalable state management using Redux, RTK Query, and Formik, optimizing data flow and reducing redundant API calls.
  • Optimized frontend performance by improving Core Web Vitals, reducing load time and enhancing user experience across enterprise applications.
  • Contributed to API design and integration using GraphQL and Node.js, improving data flow efficiency and enabling scalable full-stack architecture.

Frontend Developer

Aug 2021 – Mar 2023

Technologies & Tools

  • React
  • JavaScript
  • Node.js
  • Algolia
  • HTML5
  • CSS3

What I've done

  • Led frontend for multi-region eCommerce platforms (USA & Canada).
  • Built dashboards and improved UX with Algolia search.
  • Collaborated on Node.js APIs and improved accessibility standards.
ONS Tech logo

ONS Tech

Jan 2018 – Jul 2021

Chandigarh, India (On-Site)

PHP Developer

Aug 2018 – Jul 2021

Technologies & Tools

  • PHP
  • MySQL
  • RRedis
  • JavaScript
  • CCMS

What I've done

  • Developed web solutions using PHP and CMS platforms.
  • Implemented Redis caching, improving performance by 40%.
  • Built internal tools and automated workflows for CRM systems.

Trainee

Jan 2018 – Jul 2018

Technologies & Tools

  • PHP
  • MySQL
  • JavaScript

What I've done

  • Developed a project management system with reporting and database design.

You have a right to perform your prescribed duty, but you are not entitled to the fruits of your actions.

— Bhagavad Gita, 2.47