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Frontend / Javascript / React JS Developer

Hi, I'm Hari Prasad Korapati, Innovative Frontend Developer with 13.6 years of experience, specializing in building dynamic, user-centric web and mobile applications. Your expertise spans a wide range of technologies, including HTML5, CSS3, JavaScript, TypeScript, ReactJS, Redux, Angular, GraphQL, REST APIs, and mobile frameworks like React Native, Expo, and Flutter.

Follow on LinkedIn 
                const developer = {
                  name: 'Frontend Expert',
                  experience: 13,
                  skills: [
                    'HTML5',
                    'CSS3',
                    'Advanced JavaScript',
                    'Bootstrap',
                    'TailwindCSS',
                    'React.JS',
                    'Redux State Management',
                    'Next.JS',
                    'Node.JS',
                    'Express.JS',
                    'GraphQL',
                    'Mongo DB',
                    'React Native',
                    'Web App Development',
                    'Mobile App Development',
                  ]
                }

Areas of Expertise

With over 13 years of experience in frontend development, I've mastered various aspects of web development and modern JavaScript frameworks.

Frontend Architecture

Building scalable and maintainable frontend architectures using modern best practices and design patterns.

React Development

Expert in React ecosystem including Redux, Context API, Hooks, and advanced state management patterns.

Performance Optimization

Implementing advanced optimization techniques for fast, responsive, and efficient web applications.

Modern JavaScript

Deep understanding of JavaScript fundamentals, ES6+, and modern development practices.

Responsive Design

Creating fluid, responsive layouts that work seamlessly across all devices and screen sizes.

Testing & Quality

Implementing comprehensive testing strategies using Jest, React Testing Library, and Cypress.

Professional Experience

Senior Engineer 2

April 2023 - Present

American Express

  • • Developed scalable web apps with JavaScript, TypeScript, React, Hooks, and GraphQL for a seamless user experience.
  • • Built a Trust Framework with Next.js, Node.js, Express.js, and Mongoose for secure auth, identity management, and scalable API performance.
  • • Implemented TDD with Jest & React Testing Library, ensuring 95%+ coverage and improved maintainability.
  • • Led end-to-end development, delivering business-critical features on time.
  • • Collaborated with product, design, and QA teams to deliver quality software under Agile.
  • • Ensured superior code quality through rigorous code reviews, best practices, and performance optimization.
  • • Managed a team of 4 developers, delegating tasks, fostering collaboration, and ensuring project alignment.
  • • Developed reusable components and UI libraries, promoting consistency and reducing development time across multiple projects.

Engineer 2

Jul 2021 - Mar 2023

Conduent

  • • Designed & developed scalable, high-performance web applications using JavaScript, TypeScript, React.js, React Hooks, and GraphQL, ensuring a seamless user experience.
  • • Contributed to System Configuration Portal and developed Feature Flag Service (FFS) that enabled controlled rollouts and dynamic feature management, allowing the creation of rules and conditions using AND/OR combinations based on parameters like App ID, User Role, User Groups, Authorization and more.
  • • Provided technical guidance and served as a subject matter expert for the development team, ensuring adherence to best practices and industry standards.
  • • Contributed to strategic planning and technical decision-making, aligning development efforts with long-term business goals.
  • • Collaborate cross-functionally with product managers, designers, and QA engineers, ensuring high-quality software delivery under Agile methodologies.
  • • Ensured superior code quality through rigorous code reviews, best practices, and performance optimization.

Software Engineer

Feb 2016 - Jun 2021

Wells Fargo

  • • Developed and maintained CBOA projects at Wells Fargo using React, Redux, and JavaScript for seamless back-office operations.
  • • Served as SME for WFRIA3 JavaScript UI Library, ensuring UI quality, performance, and team consistency.
  • • Enhanced code modularity and reusability for faster development and maintainability.
  • • Integrated REST APIs and managed async data flows with Redux-Thunk and Redux-Saga for smooth front-end and back-end communication.
  • • Mentored junior developers on best practices, debugging, and using React, Redux, and internal libraries to boost team expertise and productivity.
  • • Developed reusable components and UI libraries, promoting consistency and reducing development time across multiple projects.
  • • Actively participated in code reviews, ensuring adherence to coding standards, reducing technical debt, and enhancing the quality of deliverables

Senior Web Developer

Jan 2014 - Jan 2016

IZMO Ltd (Formerly known as Logix Microsystems)

  • • Successfully migrated 75 legacy templates to modern, responsive web templates. This upgrade improved the overall design and user interaction across different platforms.
  • • Created over 3,000 websites by utilizing 75 standardized, reusable templates with admin configurations.
  • • Designed and developed a Service Appointments Calendar to allow users to manage service leads efficiently. The calendar helped users track appointments and service statuses with ease.
  • • Developed a web page builder with pre-existing components, featuring drag-and-drop functionality to enhance the customer experience.
  • • Converted PSD designs into pixel-perfect, responsive HTML templates, ensuring consistency across devices and browsers.
  • • Ensured templates were fully responsive, improving accessibility and performance on mobile devices.

Mobile Developer

June 2011 - Dec 2013

CompIndia

  • • Utilized PhoneGap as a container to ensure cross-platform compatibility, enabling the app to run seamlessly on both Android and iOS devices.
  • • Leveraged web technologies (HTML, CSS, JavaScript) for rapid development and easier maintenance of the app.
  • • Optimized user experience by integrating intuitive features such as real-time taxi booking, ride tracking, and payment systems.
  • • Created secure features to manage and store internal employee records, including personal details, employment history, and performance reviews.

Technology Stack

A comprehensive toolkit built over 13 years of frontend development

Frontend Development

React.js Expert
JavaScript Expert
TypeScript Advanced
Sass Advanced
Angular 2 Intermediate
Redux Expert

Backend & Infrastructure

Git Expert
GraphQL
 Advanced
Jest Advanced
Node.js Intermediate
Next.JS Intermediate
Express.JS Intermediate

Official Feedback

What colleagues and clients say about working together

Akula Satya Kiran

Product Manager, IZMO Ltd

"An exceptional frontend developer who consistently delivers high-quality solutions. Their expertise in React and modern JavaScript practices helped transform our project."

Satyaditya Yerneni

Manager, WellsFargo

"Their deep understanding of frontend architecture and ability to solve complex problems made them an invaluable asset to our team."

Desika Vinayakan

Product Manager, AMEX

"A true professional who not only delivers excellent code but also brings innovative solutions to the table. Their expertise in React made our project a success."

Let's Connect

Contact Information

+1 (202) 352-8410

Social Media