Sahil
Backend & AI Engineer building scalable systems, REST APIs,
and cloud infrastructure for 3+ years.
Engineering Systems
That Scale.
Backend & AI Engineer with 3+ years building scalable REST APIs, microservices, and cloud-native systems on Node.js, NestJS, and AWS — from case management platforms to AI-powered document assistants used by thousands.
Technical Arsenal
Where I've Shipped.
Backend Engineer
What I've Built.
ADR Automation Platform
Built for Canada's ADR Chamber
Enterprise dispute resolution platform built for one of Canada's largest ADR chambers. Supports 15+ ADR service types with Zoom for hearings, QuickBooks Online for invoicing, Google Calendar for scheduling, and Google OAuth — all on a microservices backbone with Azure Storage for documents.
ZenClinic
Real-time Telemedicine Infrastructure
Microservices-based clinic management platform with telemedicine capabilities. Independent services for appointments, billing, notifications, and video — each deployed and scaled autonomously. Integrated Zoom, Stripe, and QuickBooks.
GiftXD & ShopXD
Gift Card Exchange & Bitcoin Commerce
Two interconnected microservices platforms. GiftXD lets users exchange unused gift cards (Amazon, Nike, Sephora) for Bitcoin. ShopXD scrapes product listings from multiple e-commerce sites and lets users purchase them using those same gift cards — closing the loop between idle balances and real buying power.
THAIMIS
Subscription Platform Backend
Scalable subscription management backend serving 30k+ registered users. Optimized database queries and built efficient API layer with comprehensive logging and monitoring.
RAG-Based Document Q&A System
AI-Powered HR Policy Assistant
Retrieval-Augmented Generation assistant that answers HR policy questions from ingested documents. Handles semantic chunking, embeddings, and vector search, with DeepSeek and Llama models behind automatic failover.
AI Job Application Tracker
LLM-Powered Gmail Job Tracking Backend
Production-ready NestJS backend that monitors a Gmail inbox via the Gmail API, classifies job-application emails with LLMs (DeepSeek via OpenRouter + Gemini 2.5 Flash), maintains a full append-only status timeline, generates analytics, and sends notifications through Brevo and Slack.
How I Think in Systems.
Every system I build is designed for resilience, scalability, and observability from day one.
Let's Build
Something.
Open to new opportunities, consulting, and interesting engineering challenges. If you need someone who thinks in systems and ships products, let's talk.