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Hi, I’m Sahithya Kengaigar, a MERN Full Stack Developer with 4+ years of experience building scalable, secure, and high-performance web applications across healthcare, finance, education, and CRM domains. I specialize in MongoDB, Express.js, React.js, Node.js, and Next.js, and collaborate across cross-stack teams with Angular, Vue.js, and Python (Django) to support robust solutions. I design secure RESTful APIs, implement role-based authentication (JWT, OAuth2, RBAC), optimize database performance (MongoDB & MySQL), and deploy cloud-native apps on AWS. I’ve improved system performance by 30-40%, enhanced API reliability, and accelerated release cycles through Docker-based CI/CD with GitHub Actions and Jenkins. I’m passionate about modernizing legacy systems, enhancing UI responsiveness through component optimization and lazy loading, and delivering accessible, WCAG-compliant enterprise applications for high-volume users. I’m a collaborative Agile team member who writes clean, maintainable code and is committed to building production-ready full-stack solutions aligned with modern US engineering standards.…Hi, I’m Sahithya Kengaigar, a MERN Full Stack Developer with 4+ years of experience building scalable, secure, and high-performance web applications across healthcare, finance, education, and CRM domains. I specialize in MongoDB, Express.js, React.js, Node.js, and Next.js, and collaborate across cross-stack teams with Angular, Vue.js, and Python (Django) to support robust solutions. I design secure RESTful APIs, implement role-based authentication (JWT, OAuth2, RBAC), optimize database performance (MongoDB & MySQL), and deploy cloud-native apps on AWS. I’ve improved system performance by 30-40%, enhanced API reliability, and accelerated release cycles through Docker-based CI/CD with GitHub Actions and Jenkins. I’m passionate about modernizing legacy systems, enhancing UI responsiveness through component optimization and lazy loading, and delivering accessible, WCAG-compliant enterprise applications for high-volume users. I’m a collaborative Agile team member who writes clean, maintainable code and is committed to building production-ready full-stack solutions aligned with modern US engineering standards.

Sahithya Kengaigar

Full Stack Developer, Web Developer, Front-End Developer, +2

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Hi, I’m Sahithya Kengaigar, a MERN Full Stack Developer with 4+ years of experience building scalable, secure, and high-performance web applications across healthcare, finance, education, and CRM domains. I specialize in MongoDB, Express.js, React.js, Node.js, and Next.js, and collaborate across cross-stack teams with Angular, Vue.js, and Python (Django) to support robust solutions. I design secure RESTful APIs, implement role-based authentication (JWT, OAuth2, RBAC), optimize database performance (MongoDB & MySQL), and deploy cloud-native apps on AWS. I’ve improved system performance by 30-40%, enhanced API reliability, and accelerated release cycles through Docker-based CI/CD with GitHub Actions and Jenkins. I’m passionate about modernizing legacy systems, enhancing UI responsiveness through component optimization and lazy loading, and delivering accessible, WCAG-compliant enterprise applications for high-volume users. I’m a collaborative Agile team member who writes clean, maintainable code and is committed to building production-ready full-stack solutions aligned with modern US engineering standards.…Hi, I’m Sahithya Kengaigar, a MERN Full Stack Developer with 4+ years of experience building scalable, secure, and high-performance web applications across healthcare, finance, education, and CRM domains. I specialize in MongoDB, Express.js, React.js, Node.js, and Next.js, and collaborate across cross-stack teams with Angular, Vue.js, and Python (Django) to support robust solutions. I design secure RESTful APIs, implement role-based authentication (JWT, OAuth2, RBAC), optimize database performance (MongoDB & MySQL), and deploy cloud-native apps on AWS. I’ve improved system performance by 30-40%, enhanced API reliability, and accelerated release cycles through Docker-based CI/CD with GitHub Actions and Jenkins. I’m passionate about modernizing legacy systems, enhancing UI responsiveness through component optimization and lazy loading, and delivering accessible, WCAG-compliant enterprise applications for high-volume users. I’m a collaborative Agile team member who writes clean, maintainable code and is committed to building production-ready full-stack solutions aligned with modern US engineering standards.

Available to hire

Hi, I’m Sahithya Kengaigar, a MERN Full Stack Developer with 4+ years of experience building scalable, secure, and high-performance web applications across healthcare, finance, education, and CRM domains. I specialize in MongoDB, Express.js, React.js, Node.js, and Next.js, and collaborate across cross-stack teams with Angular, Vue.js, and Python (Django) to support robust solutions.

I design secure RESTful APIs, implement role-based authentication (JWT, OAuth2, RBAC), optimize database performance (MongoDB & MySQL), and deploy cloud-native apps on AWS. I’ve improved system performance by 30-40%, enhanced API reliability, and accelerated release cycles through Docker-based CI/CD with GitHub Actions and Jenkins. I’m passionate about modernizing legacy systems, enhancing UI responsiveness through component optimization and lazy loading, and delivering accessible, WCAG-compliant enterprise applications for high-volume users. I’m a collaborative Agile team member who writes clean, maintainable code and is committed to building production-ready full-stack solutions aligned with modern US engineering standards.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Work Experience

Full Stack Developer (MERN) at Cardinal Health

July 1, 2025 - Present

Remote healthcare-focused MERN stack role; built and improved secure REST APIs with authentication and RBAC, restructured MongoDB schemas and optimized aggregations, and enhanced UI workflows. Used MySQL for relational workflows and containerized services with Docker. Implemented CI/CD pipelines with GitHub Actions and deployed on AWS, improving deployment speed and reliability. Collaborated in Agile sprints to deliver scalable healthcare solutions.

Full Stack Developer at HubSpot

July 1, 2024 - June 30, 2025

Developed Node.js and Express APIs to support CRM workflows, improved data flow with redesigned MongoDB schemas and queries, and contributed to front-end updates in an Angular application. Containerized applications with Docker and supported AWS deployments; participated in CI/CD pipelines with GitHub Actions to maintain release quality.

Software Analyst (Graduate Public Internship Service) at TRSIL

August 1, 2023 - June 30, 2024

Migrated a legacy interface to React using Redux Toolkit and React Query, improving load time and user adoption. Built REST APIs with Node.js/Express and integrated MongoDB and MySQL for hybrid data needs. Assisted with CI/CD workflows and automated testing to improve deployment reliability; delivered role-based dashboards with improved accessibility and performance.

Associate Software Engineer at Kaplan North America

February 1, 2022 - January 31, 2023

Developed Angular (TypeScript) components and reusable UI modules for student portals; built REST APIs with Node.js/Express with MongoDB and MySQL, improving response time and data consistency. Integrated backend services using Angular HTTP client and improved state management; added structured logging and monitoring to reduce debugging time.

Software Engineer at Hexaware

January 1, 2021 - January 31, 2022

Contributed to CRM modernization using React and Redux; developed and maintained REST APIs with Node.js/Express, working with MongoDB and MySQL. Supported CI/CD improvements and monitoring enhancements to reduce issue resolution time and improve stability.