Hi, my name is

Hari Prasad Korapati.

Senior Frontend Engineer

15+ years building large-scale, user-facing web applications with React, TypeScript, and Node.js — micro-frontend architecture, design systems, and end-to-end feature ownership for Barclays, Walmart, RingCentral, and Wells Fargo.

See my experienceGet in touch

Worked with teams at

  • Barclays
  • Walmart
  • RingCentral
  • Wells Fargo
years of experience
15+
daily users served
30K+
test coverage standard
90%+

01About me

Portrait of Hari Prasad Korapati

I'm a frontend engineer with 15+ years of experience building large-scale, user-facing web applications in React, TypeScript, and JavaScript, with backend-for-frontend work in Node.js, Express, and GraphQL. I have deep experience in micro-frontend architecture (Module Federation), design systems and shared component libraries, and test-driven development with Jest and React Testing Library at 90%+ coverage.

I consistently own features end to end — from requirements through production support — while mentoring engineers and setting code-quality standards across Agile teams at Barclays, Walmart, RingCentral, and Wells Fargo. On the side, I founded Mera Invoices, a multi-tenant GST-compliance and invoicing SaaS for Indian small businesses.

Currently

Senior React Developer (Consultant) at Nivid Infotech, working with Barclays — and founder of Mera Invoices.

Education & Certification

B.Tech, Computer Science & Engineering, JNTUA — First Class with Distinction, 2011 · Namaste Node.js — namastedev.com

Based in USA · EST · Open to interesting opportunities

02Skills

Languages & Frontend

  • JavaScript (ES6+)
  • TypeScript
  • React (v15–v19)
  • Next.js
  • Redux
  • React Query
  • Angular 2+
  • Module Federation / Micro-frontends
  • HTML5
  • CSS3

Styling & Design Systems

  • Tailwind CSS
  • Material UI
  • Styled Components
  • SASS/SCSS
  • Bootstrap
  • Shared Component Libraries
  • Responsive Web Design
  • Accessibility (WCAG)

Backend & Data

  • Node.js
  • Express.js
  • GraphQL (Apollo)
  • REST APIs
  • MongoDB / Mongoose
  • Firebase
  • Supabase
  • MySQL
  • JWT / OAuth

Testing, DevOps & Mobile

  • Jest
  • React Testing Library
  • Webpack
  • Vite
  • AWS (EC2, S3, SES)
  • Docker
  • Jenkins
  • GitHub Actions
  • CI/CD
  • React Native / Expo

03Experience

  1. Senior React Developer (Consultant) @ Nivid Infotech

    Mar 2025 — Present · USA

    • Barclays (Onboard360 / MarketsOne): leading the migration of the Orchestrator client-onboarding platform from legacy Angular to React 19 and TypeScript, rebuilding it against updated design specs.
    • Designed a JSON-driven UI builder engine that renders fields, properties, and validation at runtime, so the Sales Initiation Form adapts automatically to the product and client being onboarded.
    • Established a micro-frontend architecture and shared UI libraries enabling modular development and independent deployment across MarketsOne applications.
    • Walmart (Seller Center): delivered the Seller Central Unpublished and Analytics micro-frontends end to end, serving 30K+ Walmart sellers daily and reducing seller task completion time.
    • Cut page load times by 30% through route-level code-splitting, lazy loading, and bundle analysis; sustained 90%+ test coverage with Jest and React Testing Library.
    • React 19
    • TypeScript
    • GraphQL
    • Module Federation
    • Jest

  2. Software Development Engineer 4 @ RingCentral Inc.

    Jun 2021 — Feb 2025 · Bengaluru, India

    • Migrated the System Configuration Portal and built a Feature Flag Service supporting controlled rollouts and dynamic rules with AND/OR parameter conditions.
    • Developed the Trust Framework (Next.js, Express, Node.js, MongoDB) for authentication, authorization, and identity management with JWT, GraphQL, and REST APIs.
    • Drove TDD to 95%+ coverage and built CI/CD pipelines in Jenkins and GitHub Actions for zero-downtime releases.
    • Managed a team of 4 developers and owned release management: code freeze, quality checks, and production deployment.
    • Next.js
    • Node.js
    • MongoDB
    • GraphQL
    • Jenkins

  3. Software Engineer @ Wells Fargo India Pvt Ltd

    Feb 2016 — Jun 2021 · Bengaluru, India

    • Built and maintained the CreditBridge Onboarding, Accounting, and Workflow back-office applications using React, Redux, and Angular 2.
    • Served as SME for WFRIA3, the internal JavaScript UI library, standardizing UI quality and performance across back-office teams.
    • Designed a multi-level rules creator with AND/OR logic, enabling dynamic configuration for complex business processes.
    • Recruited and mentored frontend engineers, owned release management, and led code reviews to reduce technical debt.
    • React
    • Redux
    • Angular 2
    • REST APIs

  4. Senior Web Developer @ IZMO Ltd

    Jan 2014 — Jan 2016 · Bengaluru, India

    • Migrated 75 legacy templates to responsive, admin-configurable templates used to generate 3,000+ automobile dealer websites.
    • Built the ANECRA portal, a centralized platform where users browse authorized dealers and book service appointments directly.
    • Developed a drag-and-drop web page builder letting dealers assemble and edit pages without developer involvement.
    • JavaScript
    • HTML/CSS
    • Responsive Design

  5. Mobile Developer @ CompIndia Pvt Ltd

    Jun 2011 — Dec 2013 · Chennai, India

    • Designed and developed the HotTaxi hybrid mobile application for Android (PhoneGap), focusing on a clean interface and smooth navigation.
    • Built the BSS Orlando employee portal to streamline new-hire onboarding, with role-based access to employee records for HR, managers, and employees.
    • PhoneGap
    • JavaScript
    • Android

04Personal Projects

Mera Invoices

Founder & sole engineer of a multi-tenant invoicing and GST-compliance SaaS for Indian small businesses — product, architecture, frontend, backend, and deployment, single-handedly. Four distinct portals (business, chartered accountant, customer, partner) on a shared component library, with GSTR reporting, a filing-status tracker, a compliance calendar, AI-assisted bill scanning, localization across 11 Indian languages, and tiered subscription billing.

  • React
  • Node.js
  • Multi-tenant SaaS
  • AI

Daybook

A daybook app for capturing daily records in one place — quick entries, organized views, and simple search. Built end to end as a personal product: design, frontend, backend, and deployment.

  • React
  • TypeScript
  • Node.js

05Get in touch

Let's build something together

I'm always open to new opportunities, collaborations, or just a good conversation about building software. My inbox is open — I'll get back to you as soon as I can.

Say hello