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kapil shahi

@kapilshahi

Full Stack Developer at Cognizant building MERN applications and GenAI features with AWS Bedrock, RAG pipelines, and LLM APIs.

India

Message

At Cognizant, I design and deliver end-to-end MERN applications, connecting React frontends and Node.js services with REST and GraphQL APIs.

I’ve shipped GenAI features including chat assistants, document Q&A, and content generation using AWS Bedrock and LLM APIs. I’ve also integrated RAG pipelines, streaming responses, and tool calling into MERN applications.

At GlobalLogic, I built and maintained applications with Node.js, React.js, and MongoDB, developing REST APIs and optimizing database queries and application performance.

Earlier, I built MERN applications at HCLTech and contributed to banking software development and optimization. At Chetu India Pvt Ltd, I managed and mentored software engineers; at TecMaestro Its Solutions (GeekSquares Technical Services Pvt Ltd), I developed web solutions using PHP, WordPress, and JavaScript frameworks.

Experience

Work history, roles, and key accomplishments

Current

Senior Associate - Projects

Current

Cognizant

Feb 2025 - Present (1 year 8 months)

Designed and delivered end-to-end web applications using MERN stack, implemented AWS serverless solutions, and shipped GenAI features. Built scalable React frontends and secure Node.js backends with testing and quality assurance.

MongoDB ExpressJS React NodeJS React Redux React Hook Form REST APIs GraphQL AWS Lambda API Gateway AppSync S3 DynamoDB CloudFormation Cloudwatch CloudTrail AWS OpenAI RAG Prompt Engineering Jest React Testing Library

Associate Consultant

GlobalLogic

Apr 2024 - Feb 2025 (10 months)

Built and maintained applications using Node.js, React.js, and MongoDB. Developed REST APIs, optimized database queries, and collaborated with cross-functional teams for smooth delivery.

NodeJS React MongoDB REST APIs Database Management Performance Optimization Cross team Collaboration

MERN Stack Developer

HCLTech

Apr 2021 - Apr 2024 (3 years)

Built end-to-end web applications using MERN stack, developed reusable React components, and implemented robust APIs. Improved MongoDB schema design and query performance for high-traffic modules.

MongoDB ExpressJS React NodeJS API Development Database Optimization Code Quality Teamwork

Lead Software Engineer

Chetu India Pvt Ltd

Aug 2018 - Feb 2021 (2 years 6 months)

Managed and mentored a team of software engineers, oversaw the full development lifecycle, and provided technical guidance. Collaborated with stakeholders to gather requirements and ensure high-quality delivery.

Team Leadership Project Management Technical guidance Code Review Quality Assurance Process Improvement

Web Developer (PHP)

TecMaestro Itsolutions

Apr 2017 - Jun 2018 (1 year 2 months)

Led a small development team, managed end-to-end project execution, and developed custom web solutions using PHP, WordPress, and JavaScript frameworks. Interacted directly with clients and conducted quality assurance.

PHP WordPress JavaScript Git Agile Client Coordination Quality Assurance