Hi, I'm Sarang
Padulkar
Full-Stack MERN developer with 2.4+ years building production-grade web applications — from real-time systems and scalable REST APIs to pixel-perfect React interfaces. Based in Pune, Maharashtra.
2.4+
Years Exp.
30+
Projects
3
Companies
100%
Commitment
Building things that actually ship
I'm a product-minded engineer who obsesses over code quality, user experience, and delivery timelines.
I'm Sarang Padulkar, a Full-Stack MERN Developer with 2.4+ years of professional experience architecting and shipping web applications used by real users at scale.
Across three companies — from a healthcare tech platform to a fast-paced IT solutions firm — I've owned features end-to-end: from database schema design and REST API development to React-based SPAs and CI/CD pipelines. I bring production discipline to every project I touch.
I specialize in React, Next.js, Node.js, Express, and MongoDB, with strong working knowledge of Redux Toolkit, Socket.io, Docker, AWS, and PostgreSQL. Agile methodologies and clean, documented code are non-negotiable for me.
Performance-First
Achieved up to 40% improvement in app performance through lazy loading, code splitting, and query optimization.
Secure by Design
JWT-based auth, RBAC, input validation, rate limiting — security is baked in from day one.
Real-time Systems
Built WebSocket-driven notification systems and live-sync features with Socket.io handling 1000+ concurrent users.
Cloud-Native
Production deployments on AWS (EC2, S3, Lambda), Vercel, and Render with Docker-based containerization.
Skills & Technologies
The tools I reach for to build fast, scalable, and maintainable systems.
Frontend
Backend
Database & DevOps
Also familiar with
Professional Experience
2.4+ years building production software across healthcare, social tech, and enterprise SaaS.
Junior Web Developer
Jagruti Rehabilitation Center
Mumbai, Maharashtra (WFH)
- Architected a healthcare CRM using microservices, boosting platform scalability by 50% and ensuring 99.9% fault isolation across critical medical modules.
- Streamlined AI-driven documentation by implementing FFmpeg-based audio chunking, reducing Gemini API overload and improving transcription efficiency by 40%.
- Engineered automated audio documentation pipelines, cutting manual processing effort by 45% for high-volume healthcare data workflows.
- Optimized data migration processes, successfully transferring 10,000+ legacy medical records into MongoDB with zero data loss.
- Strengthened healthcare data security by refining AWS S3 access control logic, achieving 100% compliance with secure document retrieval protocols.
Full Stack Developer
Tech Surya IT Solutions
Aurangabad, Maharashtra
- Built and shipped a full-featured social networking platform with real-time post feeds, content moderation, and engagement analytics for 1,000+ registered users.
- Developed a scalable RESTful API with Express.js featuring pagination, full-text search, and rate limiting — achieving 99.2% uptime in production.
- Integrated Cloudinary for media pipeline (image/video upload, CDN delivery, on-the-fly transformations), reducing client-side load times by 35%.
- Implemented event-driven notification system (likes, comments, follows) using Socket.io, improving user session duration by 28%.
- Collaborated with 3-member frontend team in Agile 2-week sprints — actively contributed to code reviews, technical documentation, and sprint retrospectives.
Full Stack Developer
AMS Solutions
Pune, Maharashtra
- Architected and delivered a multi-module ERP platform (inventory, billing, HR) using React, Node.js, and MongoDB — reducing manual data entry by 60% across departments.
- Engineered a real-time notification system with Socket.io supporting 500+ concurrent users with sub-100ms event delivery.
- Implemented JWT-based RBAC authentication across super-admin, admin, and user roles with refresh-token rotation and session management.
- Optimized critical MongoDB aggregation pipelines and added Redis caching, reducing API P95 response times from 850ms to under 200ms.
- Led frontend architecture decisions — adopted RTK Query for server-state management, eliminating 40% of boilerplate data-fetching code.
- Set up CI/CD with GitHub Actions deploying to AWS EC2 via Docker, achieving zero-downtime deployments with blue-green strategy.
Things I've Shipped
Production-grade projects spanning enterprise platforms, social systems, and real-time applications.
Enterprise Resource Planning (ERP) Platform
A production-grade multi-module ERP system unifying inventory management, HR workflows, billing, and executive analytics into a single platform. Replaced fragmented spreadsheet processes across 3 departments, reducing operational overhead by 60%.
SocialSphere — Developer Community Platform
A full-stack social networking platform with real-time feeds, media sharing, infinite scroll, engagement analytics, and a notification engine. Built to handle 1,000+ registered users with a WebSocket-based event system delivering sub-50ms latency.
EventHive — Ticketing & Booking Engine
A high-throughput event ticketing system with dynamic seat allocation, Stripe payment integration, QR-code ticket generation, and real-time seat availability updates. Engineered to handle 1,000+ concurrent booking requests with optimistic locking to prevent race conditions.
ScholarConnect — Scholarship Management System
End-to-end digital portal that streamlined scholarship applications for 5,000+ students — featuring multi-step application workflows, automated eligibility screening, document upload (Cloudinary), and an admin review dashboard with bulk approval functionality.
HealthDesk — Patient Appointment System
A HIPAA-aware patient management and appointment scheduling system for a rehabilitation center, digitizing intake forms, session notes, and automated reminders via SMS/email APIs — replacing an entirely manual paper workflow for 200+ patients.
This Portfolio
A high-performance developer portfolio built with Next.js 14 App Router, Framer Motion, and Tailwind CSS — with a Node.js + MongoDB backend tracking views and storing contact form submissions. Lighthouse score 98+.
Get In Touch
Have a project in mind or want to explore opportunities? Drop me a message.
Let's build something great
I'm currently open to full-time roles, freelance projects, and consulting engagements. Typical response time is under 24 hours.