Hariharan S. - Full Stack Developer

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New York, United States

Experience

Aug 2024 - Present

1 year 4 months

New York, United States

Full Stack Developer

Dell Technologies

Architected SPAs with React, TypeScript, Redux, and semantic HTML/ARIA; improved performance by 40% and accessibility compliance across web platforms
Built scalable RESTful microservices with Spring Boot and Node.js, supporting 100K+ users and reducing backend latency by 30%; integrated legacy SOAP services alongside REST APIs and explored gRPC/API Gateway for RPC scalability
Leveraged JWT-based RBAC, OAuth 2.0 authentication flows; ensured GDPR compliance, reduced auth-related issues by 95%
Deployed Terraform-based AWS environments to support CI/CD and infrastructure automation
Increased system reliability by improving test coverage from 65% to 92%, reducing production incidents by 40% through observability tooling and root cause analysis

Feb 2024 - Jul 2024

6 months

New York, United States

Full Stack Developer Intern

Dell Technologies

Designed responsive web apps with React, TypeScript, and Node.js, enhancing performance and reducing load time by 30%
Created and configured RESTful APIs with Express and connected PostgreSQL/MongoDB for secure data flow
Developed Spring MVC controllers using annotations and validation with JSR-303
Deployed containerized services on AWS using Docker, GitHub Actions, and Jenkins amplifying deployment frequency by 40%
Verified application functionality with 95%+ test coverage using Jest, Mocha, and Postman; mitigated QA defects by 30% through TDD workflows

May 2021 - Aug 2022

1 year 4 months

Hyderabad, India

Full Stack Developer

Hexaware Technologies

Migrated internal dashboards from AngularJS/jQuery to React with Tailwind CSS, reduced page load time by 35% and decreased Time to Interactive (TTI) from 4.2s to 2.7s, improving Core Web Vitals and dashboard responsiveness
Implemented backend microservices with Spring Boot and Node.js, handling 1M+ API calls/month through async workflows
Tuned SQL and MongoDB queries with indexing strategies, decreasing query latency by 28%; implemented Hibernate ORM to simplify SQL integration and reduce boilerplate data access logic
Built RESTful APIs using Express and documented APIs with Swagger to embed with third-party payment and analytics systems
Participated in Agile Scrum ceremonies and consistently delivered sprint goals, promoting overall team velocity

Aug 2020 - Apr 2021

9 months

Hyderabad, India

Intern Front-End Engineer

Fusion Software Technologies

Crafted responsive UI components using React, HTML5, and CSS3, driving a 30% increase in mobile engagement and emphasizing UI/UX design principles
Enabled real-time UI feedback and minimized average API response lag by 200ms using async/await patterns and optimized REST endpoint handling
Reconstructed legacy JavaScript codebases into reusable React components, reducing bugs and streamlining maintenance
Elevated delivery efficiency by 15% by identifying blockers early and escalating them during Agile sprint planning and grooming

Health360 App

Developed cross-platform health tracking app using React Native, Node.js, and MongoDB with real-time messaging, JWT RBAC, and clinical trial onboarding
Boosted engagement and security through personalized, HIPAA-ready communication workflows

Real-Time Meme Detection System

Devised real-time classification system using BERT, ResNet50, and OCR
Cut image pipeline latency by 20% using Rust-based preprocessing modules
Deployed Flask APIs on AWS EC2, utilized S3 for image storage, and achieved 75% classification accuracy

Summary

Software Development Engineer(Full Stack) with 3+ years of experience in React, TypeScript, Spring Boot, Node.js, and REST APIs. Expertise in AWS, Docker, CI/CD, and Agile; built scalable cloud microservices and high-performance web apps