Hi, I'm
Sai Subrahmanyam
Mahadasa
6+ years building scalable, workflow-heavy web applications across healthcare SaaS, financial analytics, and enterprise platforms. Strong in React/Next.js/TypeScript with Redux/Redux Toolkit, and Node.js/Express + GraphQL for backend services.
Experienced with MySQL/PostgreSQL, Redis, secure patterns (JWT, RBAC), and building GenAI/RAG features using LangChain concepts & vector databases.
About Me
Senior Full Stack Developer
Strong in React, Next.js, TypeScript for pixel-perfect, high-performing UI layers with Redux/Redux Toolkit, reusable component systems, and design-system thinking. Experienced integrating GraphQL (Apollo) and REST APIs with Node.js/Express, backed by MySQL and production-ready patterns using Redis for sessions/caching, Docker for environment consistency, and AWS-based delivery practices. Comfortable building robust unit tests (Jest) and enforcing CI quality gates via GitHub Actions.
Recently worked on GenAI integrations including LLM + RAG features using LangChain concepts, retrieval pipelines, and safe UI experiences with grounded responses and evaluation-minded logging. Known for clear communication, strong ownership, and collaboration with product, design, and QA in Agile teams. Comfortable contributing to micro-frontend architectures and code review culture.
Full Stack Expertise
Frontend to Backend, Cloud to AI
Professional Strengths
Cross-Functional Leadership
Partner with Product, Design & QA
Mentorship & Code Reviews
Guide teams on best practices
End-to-End Ownership
Design to Production Support
Business-Focused Solutions
Balance quality with delivery
Technology Stack
React
Next.js
TypeScript
Node.js
GraphQL
MySQL
AWS
Redis
GenAI/RAG
Docker
Certifications & Awards
React & TypeScript Advanced Certificate
Udemy
Frontend Developer Certificate
Udemy (JavaScript / React)
NVIDIA Developer Contest Winner
Generative AI Application (2024)
Most Recently at Perky (Perspective Partners)
Owned key healthcare workflows end-to-end in a SaaS platform. Built complex validation-heavy forms with react-hook-form + Zod, designed scalable state flows with Redux Toolkit, and integrated GraphQL APIs with Node.js/Express backends. Contributed GenAI features with LLM + RAG patterns and improved reliability with Jest tests, CI/CD via GitHub Actions, Docker, and AWS.
Outside of Work
I maintain a curious mindset through continuous learning—currently exploring history and philosophy while learning guitar. I enjoy photography, cricket, and watching films. This diverse range of interests helps me bring fresh perspectives to problem-solving and team collaboration.
My projects
Healthcare Management Web Platform
A secure healthcare platform supporting workflow-driven experiences where users manage dashboards, approvals, and docume...
Technologies Used
AI-Powered Leave Assistant & Policy RAG Engine
Designed and delivered a production RAG assistant that helps employees and managers get policy-grounded answers inside a...
Technologies Used
Financial Analytics Web Application
A dashboard-driven analytics product designed for users exploring large datasets through filters, drilldowns, and report...
Technologies Used
Healthcare Template & Workflow Modules
Healthcare operational modules built for reliability under real-world data conditions. Created React screens driven by J...
Technologies Used
Technical Expertise
- React
- Next.js
- TypeScript
- JavaScript (ES6+)
- Redux Toolkit
- React Hooks
- Context API
- HTML5/CSS3
- react-hook-form
- Zod
- WCAG Accessibility
- Node.js
- Express.js
- GraphQL (Apollo)
- REST APIs
- JWT Auth
- Python
- MySQL
- PostgreSQL
- MongoDB
- Redis
- Docker
- AWS
- GitHub Actions
- CI/CD
- Jest
- Webpack
- Gulp.js
- Git
- New Relic
- LangChain
- RAG / Vector DB
- LLM Integration
- Agentic AI
- Hugging Face
- Postman
- NPM/Yarn
My Career Journey
Bachelor of Engineering, Computer Engineering
Earned a Bachelor of Engineering in Computer Engineering with a GPA of 3.58/4.00, establishing a strong foundation in software engineering principles, data structures, and full stack web development.
Software Developer
Built template-driven healthcare screens using React.js with JSON-driven configuration, enabling new screen variations without rebuilding UI structure from scratch. Developed reusable workflow patterns for forms, validations, and error messaging that reduced repeated defects across modules. Integrated backend APIs with defensive rendering and validation-first behavior to handle incomplete records safely. Maintained build reliability through Gulp.js workflows and introduced unit testing discipline with Jest for shared utilities and critical UI logic.
Software Developer
Developed data-dense UI workflows using React + TypeScript where users navigated dashboards, drilldowns, and reporting tables. Built reusable building blocks (filter bars, table shells, pagination controls, summary cards) so new report types shipped faster. Integrated backend services using Node.js/Express and GraphQL, focused on clean contracts and consistent response shapes. Collaborated on MySQL query tuning (joins, ordering, pagination) and maintained Webpack + Gulp build pipelines for reliable, environment-based builds.
Senior Software Developer
Owned key healthcare workflows end-to-end using React + TypeScript, building a component-driven UI system with reusable form sections, tables, modals, and stepper flows. Built complex validation-heavy forms using react-hook-form + Zod, designed scalable state management with Redux Toolkit, and integrated GraphQL (Apollo Client/Server) with Node.js/Express backends. Supported Redis-backed session patterns, Docker-based builds, AWS delivery practices, and New Relic monitoring. Contributed GenAI features by integrating LLM + RAG concepts using LangChain patterns with safe UX and evaluation-minded logging.
Master of Science, Computer Science
Completed graduate study focused on advanced algorithms, machine learning, and AI systems with a strong academic record (GPA 3.63/4.00).