Sandeep Kumar

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Building scalable, responsive, and high-performance web applications with React.js and Next.js.

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4+
Years Exp
10+
Projects
100%
Dedicated
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About Me

Frontend Developer with 4 years of experience delivering scalable, responsive, and high-performance web applications. Specialized in React.js, Next.js and micro frontend architecture. Adept at collaborating with cross-functional teams, optimizing performance, and ensuring seamless user experiences. Skilled in Agile methodologies, CI/CD practices, and application support with a proven track record of modernizing legacy systems and enhancing enterprise applications.

Scalable Applications
Modern Tech Stack
Team Collaboration
Performance Optimization

Technical Skills

Frontend

React.js
Next.js
HTML
CSS
JavaScript
TypeScript
Bootstrap
Tailwind CSS
Material UI
Micro Frontend

State Management

Redux
Zustand

Testing

Jest

Tools & Technologies

Git
VS Code
JIRA
Postman
CI/CD

Methodologies & Soft Skills

Agile (SCRUM)
CI/CD
Problem Solving
Communication
Collaboration
Adaptability

AI Tools

GitHub Copilot
Chat GPT
Gemini AI
Cursor

Projects & Experience

Oct 2024 – Present

Verizon Project

Cognizant Technology Solutions

Developed modular, scalable React.js components for a large-scale micro frontend application.

Technologies:

React.jsMicro FrontendJavaScriptRedux
  • ▸Developed modular, scalable React.js components for a large-scale micro frontend application
  • ▸Contributed to both development and support activities ensuring system stability
  • ▸Enhanced performance and user experience through optimization and best practices
  • ▸Collaborated with cross-functional teams to deliver features on time
Nov 2024 – Sept 2025

AT&T Internal Project

Cognizant Technology Solutions

Migrated legacy JSP applications to Next.js, improving performance and maintainability.

Technologies:

Next.jsReact.jsTypeScriptTailwind CSS
  • ▸Migrated legacy JSP applications to Next.js improving performance and maintainability
  • ▸Delivered responsive, scalable UI solutions using Next.js best practices
  • ▸Partnered with onshore/offshore teams for timely delivery and issue resolution
Jul 2022 – Oct 2024

KFC Global Project

Cognizant Technology Solutions

Enhanced food ordering website with responsive designs and seamless integrations.

Technologies:

React.jsReduxJavaScriptCSS
  • ▸Enhanced food ordering website with responsive designs and seamless integrations
  • ▸Built reusable design system components ensuring UI consistency
  • ▸Collaborated with backend teams for API integration
  • ▸Improved digital experience and application performance using React.js and Redux
Feb 2022 – Jun 2022

Diagnostic Medical Centre

Cognizant Technology Solutions (Intern)

Developed full-stack web application using Spring Boot and SQL with modern UI.

Technologies:

Spring BootSQLHTMLCSSJavaScript
  • ▸Developed Diagnostic Medical Centre web application using Spring Boot and SQL
  • ▸Designed user-friendly interfaces with HTML, CSS, and JavaScript
  • ▸Gained hands-on experience in full-stack development

Education

B. Tech in Electronics and Communication Engineering

GMR University

2019-2022

Diploma in Electronics and Communication Engineering

SMVM Polytechnic

2016-2019

Key Achievements

Notable Accomplishments

Successfully modernized legacy applications into Next.js, reducing maintenance overhead.

Delivered reusable design systems that improved UI consistency across enterprise projects.

Optimized React.js applications for performance, improving load times and user engagement.

Collaborated across global teams ensuring smooth delivery of large-scale projects.

Get In Touch

I'm always open to discussing new opportunities and interesting projects. Feel free to reach out!

Phone

+91 9398415617

Email

sandeepkumargella@gmail.com

LinkedIn

Connect with me

Location

Hyderabad, India