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I build backend systems that stay reliable as products grow.
Over the past few years, I’ve worked on SaaS platforms, payment systems, healthcare products, marketplaces, logistics applications, AI-powered tools, and cloud infrastructure.
My work has included:
• Scaling APIs handling millions of requests per day
• Building payment and subscription workflows
• Designing PostgreSQL and MySQL database architectures
• Developing AI applications, RAG systems, and document-processing pipelines
• Building event-driven systems with queues and background workers
• Deploying applications using AWS, Cloudflare, and Docker
• Improving API performance, reliability, monitoring, and security
My main stack includes Node.js, TypeScript, Python, PostgreSQL, Redis, RabbitMQ, Cloudflare Workers, AWS, Docker, Stripe, and OpenAI.
I’m especially interested in working with startups that need help building a new product, improving an existing backend, integrating payments or AI, or preparing their platform for growth.
Open to backend development, AI engineering, architecture consulting, and long-term product collaborations.
The network for creativity
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I-Sale (demo shopping webapp)
A dynamic online store optimized for discovery and interaction, featuring a real-time live search interface and a streamlined checkout mockup for seamless navigation from cart to completion.
Lovely 😍
Project Title: Secure E-Commerce Backend (Spring Boot, Redis & JWT)
I designed and developed a secure, production-ready e-commerce backend utilizing a clean layered architecture and RESTful principles. Built to handle complex business logic, this project handles everything from user lifecycle management and strict authentication to secure transaction processing and high-speed data retrieval.
Key Engineering Highlights:
Modular Architecture: Engineered 40+ secure CRUD endpoints spanning 6+ core modules: User, Product, Category, Order, and Auth, Wishlist
Advanced Security & RBAC: Implemented Spring Security with custom JWT filters, BCrypt password hashing, and granular Role-Based Access Control enforcing 3 distinct tiers (ADMIN, USER, SELLER).
Transaction Atomicity: Built robust transaction management to guarantee atomicity and data consistency across order placement and cancellation workflows.
Database & Caching Optimization: Optimized MySQL schemas via complex JPA relationships (@OneToMany, @ManyToOne) and Hibernate custom queries. Integrated a Redis caching layer that slashed product retrieval latency by 88.87% (from 3.37 s down to 375 ms).
Containerization: Fully containerized the application stack using Docker Compose for seamless, reproducible local and cloud deployments.
Links to Include:
🌐 Live API Deployment (Render): https://e-commercebackendproject.onrender.com/
💻 GitHub Repository: https://github.com/Amaantheprogrammer/E-CommerceBackendProject
I have hands-on experience with GHL workflows, automations, pipelines, forms, calendars, lead routing, email/SMS sequences, and integrations. I’ve also worked with Make.com, n8n, APIs, and webhooks to build and troubleshoot automation systems.
I’m comfortable working independently, understanding existing setups, fixing issues, and building workflows based on business needs. I can also overlap with U.S. working hours.
