I work on backend systems, enterprise integrations, and AI applications. Whether extending existing platforms or building systems from scratch, I focus on understanding business constraints, existing architectures, and ambiguous requirements, then designing pragmatic solutions that introduce new capabilities without disrupting production.

Over the past five years, I've delivered B2B SaaS platforms across:

• IoT-powered secure access control systems serving 2,000+ employees daily
• Workforce management platforms supporting thousands of users
• CRM and HRM solutions managing 15,000+ records
• AI-enhanced e-commerce platforms with RAG-based product discovery and AR-assisted product visualization
• Workflow automation systems using n8n, enabling business teams to configure and automate operational processes
• Multi-tenant AI-powered customer support assistants handling tens of thousands of customer queries per day

cadre - a modular framework for securing LLM/RAG applications against adversarial and injection risks, based on security patterns observed in enterprise RAG deployments.

Backend → FastAPI • Fastify • Laravel
Frontend → Vue.js • Next.js • Alpine.js

AI → LangChain • LangGraph • MCP • Ollama
ML → PyTorch • TensorFlow

Data & Cache → PostgreSQL • MySQL • MongoDB • Redis • Qdrant
Search & Analytics → Elasticsearch • Logstash • Kibana

Messaging & Queue → RabbitMQ • Kafka
Authentication → Keycloak • Auth0 • Firebase Auth

Storage → MinIO • GCP Storage • Cloudflare R2 • Vercel Blob

Cloud → AWS • GCP • Azure • DigitalOcean
Deployment & Infra → Docker • Kubernetes • Nginx • Apache

Monitoring → Datadog • Grafana • Prometheus

Testing & API → Postman • Bruno • OpenAPI

• Website → dipchakraborty.dev
• Email → connect@dipchakraborty.dev
• LinkedIn → linkedin.com/in/dipcb05
• Blog → writings.dipchakraborty.com

Maintainable systems matter more than clever designs.