Full-Stack Software Engineer
Mr Chams Pvt. Ltd. | Hyderabad, India
Jan 2026 – Present
I build the REST APIs, data models, and Next.js features for Zaanvar, from pet adoption and vendor billing through support operations and mobile clients.
- Develop Node.js and Express REST APIs for the Zaanvar customer app, vendor portal, support dashboard, and mobile clients.
- Model vendor stock, purchase orders, sales, wallets, suppliers, and branches in MySQL with Sequelize, and pet records in MongoDB with Mongoose.
- Tune MySQL queries and Redis caching, cutting query processing time by 35% and API latency by 120 ms on production routes.
- Secure 5,000+ user accounts with AWS Cognito, JSON Web Tokens (JWT), and role-based access for customers and support staff.
- Store pet media in Amazon S3 and purge cached files through the Bunny CDN API.
- Deploy Node.js services with Docker, PM2, and GitHub Actions, and publish Swagger docs for Postman testing.
- Build Next.js features for pet adoption, pet sales, lost and found, vendor billing, and support operations.
- Integrate Razorpay order creation for customer payments and Socket.io for live chat and location updates.
- Connect OpenAI content tools and Firebase Cloud Messaging for pet profiles and customer activity.
- Add Helmet headers, rate limiting, and bcrypt password hashing on authentication and public API routes.
- Serve adoption, sales, clinic, and grooming data to the Next.js site and companion mobile clients.
- Test pet, vendor, and support endpoints in Postman during Agile releases before staging and production.