Frontend Engineering
Build accessible, scalable interfaces in React and TypeScript with strong performance and maintainability.
Aparna Sharma
Bengaluru, India · 8+ years
Senior Software Engineer · MERN · campaigns · full-stack systems · aparnasharma157@gmail.com
I build reliable, high-quality products across frontend, backend, and commerce platforms, with a strong focus on delivery ownership and engineering quality.
Engineering leader and senior IC with 8+ years shipping payment and commerce experiences, improving product quality, and mentoring teams across fast-moving product organizations.
Building campaign workflow systems at PayPal
Experience
- PayPalWorking
Senior Software Engineer - Full Stack Developer
October 2025 – Present
Bengaluru, India (On-Site)
Oct 2025 – Present · Bengaluru, India
Dentsu / Merkle, a dentsu companyTechnical Lead - Full Stack Developer · Nov 2024 – Oct 2025
Senior Software Developer - Full Stack Developer · Apr 2023 – Oct 2024
Frontend Developer · Aug 2021 – Mar 2023
Aug 2021 – Oct 2025
Bengaluru, India (On-Site)
Aug 2021 – Oct 2025 · Bengaluru, India
ONS TechPHP Developer · Aug 2018 – Jul 2021
Trainee · Jan 2018 – Jul 2018
Jan 2018 – Jul 2021
Chandigarh, India (On-Site)
Jan 2018 – Jul 2021 · Chandigarh, India
Specialization
What I specialize in
I work best on product teams that need strong frontend judgment, dependable end-to-end delivery, and a quality-first approach to shipping.
Full-Stack Delivery
Own features end-to-end across APIs, services, testing, release workflows, and production readiness.
E-commerce & Payments
Deliver checkout, commerce, and customer-facing flows where reliability, trust, and speed matter.
Leadership & Mentoring
Guide engineers through reviews, standards, testing strategy, and execution without losing delivery pace.
Selected Wins
Proof of impact
These are the kinds of outcomes I aim for: better performance, stronger delivery confidence, healthier engineering practices, and clearer product results.
Faster API response
Reduced campaign workflow API response times through Redis caching, optimized data models, and Node.js performance tuning.
Users served
Led development of Campaign Management (V2) UI using React.js and Redux, serving 80K+ users with improved workflow efficiency.
Led delivery teams
Managed execution, architecture direction, and engineering standards while shipping MERN products at Dentsu.
Fewer production issues
Engineered backend systems with approval workflows, RBAC, and audit-ready APIs, reducing production issues by 30%.
API requests/min
Architected scalable campaign workflow architecture supporting 5K+ API requests/min with optimized Node.js and Redis caching.
Case Studies
Company-safe examples of how I work
I have not centered this site around personal projects because my strongest work has come from shipping real products in real teams. These case studies focus on ownership, constraints, and outcomes without exposing confidential details.
PayPal
Campaign workflow architecture & management platform
2025 – Present
- Context
- PayPal's campaign management system needed a complete V2 rebuild to support growing team scale, complex approval workflows, and high-throughput API requirements.
- Problem
- The existing system couldn't handle 5K+ API requests/min, lacked RBAC and audit controls, and had no version history or rollback capabilities — leading to campaign errors and workflow inefficiencies.
- What I owned
- Architected the full-stack campaign platform using React.js, Redux, Node.js (Express), and Redis. Owned approval workflows, RBAC, Publish History, version diff, and rollback features.
- What changed
- Reduced API response time by 40%, cut production issues by 30%, improved workflow efficiency by 30% for 80K+ users, and reduced campaign errors by 25% across 10K+ campaigns/month.
- React
- TypeScript
- Redux
- Node.js
- Express
- RRedis
- REST APIs
Dentsu
Monolith to microservices migration leadership
2024 – 2025
- Context
- Led a team delivering MERN applications while the platform evolved toward more scalable and resilient architecture.
- Problem
- The existing system was slowing delivery and increasing operational risk, with testing and deployment quality needing improvement as the system grew.
- What I owned
- Led a team of 8 engineers, guided migration decisions, introduced better testing standards, and helped shape documentation and release practices.
- What changed
- Reduced downtime by 30%, lowered production bugs by 45%, and strengthened engineering consistency through reviews, API standards, and CI/CD practices.
- MongoDB
- Express
- React
- Node.js
- Kafka
- Jest
- Cypress
- MySQL
Merkle / dentsu
Reusable commerce frontend systems
2021 – 2024
- Context
- Built storefront and platform capabilities for e-commerce teams serving multiple markets and product teams.
- Problem
- Teams needed faster feature delivery, stronger consistency across interfaces, and better confidence in complex user-facing flows.
- What I owned
- Built reusable component patterns, customized commerce frontends, implemented Cypress coverage, and mentored junior engineers on scalable React practices.
- What changed
- Improved delivery speed by 40%, reached 95% regression coverage for critical journeys, and helped reduce page-load time by around 2 seconds.
- React
- TypeScript
- Redux
- Shopify
- GraphQL
- Tailwind CSS
- Cypress
Leadership
How I support teams
My contribution is not just shipping code. I help teams move faster by improving quality, clarifying direction, and supporting the people around me.
Recognition
Certifications and awards
Signals of consistency matter too. These recognitions support the delivery and ownership story shown across the rest of the portfolio.
Certified AI Associate
Salesforce
Oct 17, 2024
Validated applied AI fundamentals and practical product understanding.
Q4 Make It Real Award
Merkle / dentsu
2023
Recognized for delivery impact and contribution to product execution.
Certified JavaScript Developer I
Salesforce
Jul 10, 2023
Demonstrated strong JavaScript foundation across modern application work.
Q3 Trail Blazer Award
Merkle / dentsu
2022
Recognized for initiative, ownership, and engineering contribution.
Testimonials
What colleagues say
Feedback from people I've worked with across teams and companies.
Aparna consistently delivered high-quality work and raised the bar for the entire team through thoughtful code reviews and mentoring.
Engineering Manager
Manager · Dentsu
Her ability to own complex features end-to-end, from architecture to production, made her an invaluable part of our commerce team.
Senior Engineer
Peer · Merkle
One of the strongest frontend engineers I've worked with — reliable, detail-oriented, and always thinking about long-term quality.
Product Lead
Cross-team · PayPal
Education
Academic background
B.E., Computer Science & Engineering
Chitkara Institute of Engineering & Technology
2014 — 2018
Contact
Let's talk about impactful product engineering
Open to senior frontend and full-stack engineering roles with strong product ownership, quality focus, and mentoring opportunities.
Be steadfast in yoga. Perform your duties without attachment to success or failure. Such equanimity is called yoga.
— Bhagavad Gita, 2.48