Hi, I'm
Sreerag Subhash
I build scalable web applications and high-performance APIs. passionate about turning complex problems into elegant solutions.

Expertise
React & Next.js
Backend
Node.js
About Me
I am a React Full Stack Developer with 3+ years of experience designing and deploying scalable web applications using React.js, Next.js, Node.js, and microservices architecture.
My expertise spans across Azure cloud deployment, containerized infrastructure, distributed background job processing, and high-performance API design. I have proven experience building production systems with MSSQL and MySQL, implementing asynchronous processing using Redis and BullMQ, and maintaining applications serving 100+ active users with high availability and performance.
Technical Skills
Technologies I work with to build robust solutions
Frontend
Backend
Databases
Cloud & DevOps
Asynchronous Systems
Tools & Languages
Professional Experience
Full Stack Developer
DIGITRELL- • Developed scalable full stack applications using React.js, Node.js, Express.js, and MSSQL.
- • Played a major role in building a large-scale quality testing platform for DrinkPak enabling automated execution and monitoring workflows.
- • Designed high-performance REST APIs and optimized database queries improving system responsiveness.
- • Implemented asynchronous background job processing using Redis and BullMQ for distributed task execution.
- • Deployed containerized worker and API services on Azure Container Apps ensuring high availability and scalability.
Product Engineer
SB Technologies- • Developed enterprise internal platforms using Next.js and Fastify.
- • Designed scalable backend services and REST APIs for employee management systems.
- • Optimized API performance reducing average response time by 50%.
Software Engineer
Tutorcomp Inc- • Built full stack web platforms using Next.js, Fastify, and MySQL.
- • Designed scalable architecture for online learning systems handling 5K+ monthly live sessions.
- • Developed real-time collaboration and video streaming features.
- • Integrated secure payment systems and optimized backend performance.
AI/ML Data Science Intern
TLS Innovisions- • Built machine learning models using Python and scikit-learn.
- • Performed data preprocessing and predictive model development.
Featured Projects
PakQuality App
PakQuality App
React.js, Node.js, Express.js, MSSQL
Large-scale quality testing platform for DrinkPak enabling automated execution and monitoring workflows.
Tutorcomp Platform
Tutorcomp Platform
React.js, Node.js, MySQL, LiveKit
Scalable SaaS platform supporting real-time video learning and class scheduling. Engineered for high concurrency and seamless user experience.
Connect App
Connect App
Next.js, Fastify, Excalidraw
Real-time collaboration system with shared whiteboard and live interaction features. Optimized for low-latency communication.
Mobile Purchasing Application
Mobile Purchasing Application
React Native, Node.js, MySQL, Stripe
Secure mobile commerce application with robust payment integration and inventory management.
Personality Prediction (KNN)
Personality Prediction (KNN)
Python, Pandas, Scikit-learn, Matplotlib
Built a KNN classification model to predict personality traits (introvert/extrovert) using behavioral survey data.
House Price Prediction
House Price Prediction
Python, Pandas, Scikit-learn, Seaborn
Built a regression model to predict house prices based on features like area, bedrooms, and location using Linear Regression.