Cloud & AI Solutions Architect · Kolkata, India
18+ years of overall IT experience, last 7+ Years actively involved in architecting production-grade cloud infrastructure, Industrial IoT platforms, and AI-powered solutions. Specializing in scalable distributed systems, cloud architecture, and high-performance applications that solve real-world business challenges.
About Me
I bridge the gap between complex cloud infrastructure and real-world business outcomes. With 18+ years of total IT experience, last 7 years, I lead projects from architecture and infrastructure to CI/CD, deployment, and production reliability—taking ownership of outcomes, not just deliverables.
I'm a hands-on architect who enjoys solving difficult engineering problems, sharing responsibility with fellow developers, and contributing code when it matters most.
My work spans Industrial IoT telemetry platforms, multi-cloud migrations, NL-to-SQL AI systems, and full-stack product engineering. I work closest with AWS, OCI, and Azure — and I build things that run quietly at 3 AM.
Targeting senior remote roles with global companies & Start-ups where I can apply cloud-native expertise and AI integration at scale.
Selected Work
Production systems and POCs spanning cloud, IoT, AI, and full-stack engineering.
AI · Oracle · OCI
NL-to-SQL AI platform using Oracle APEX, OCI GenAI, and OpenAI GPT-4o-mini. Built a PL/SQL wrapper over DBMS_CLOUD_AI with regex sanitisation, full POC documentation, and a beginner implementation guide. Includes security incident remediation for unauthorized ADB access.
IoT · AWS · Kafka
Full Industrial IoT stack: PostgreSQL 17 HA cluster with Patroni + etcd + HAProxy, pgBackRest S3 backups with Glacier tiering, Apache Airflow + PySpark analytics pipeline. Sensor data flows into hourly IoT aggregations via MQTT and Kafka.
Full Stack · AI · MCP
FastAPI + MCP Server + React chatbot with OpenAI GPT-4o-mini over a PostgreSQL retail database on EC2. Implemented an enterprise-grade ID-based lazy loading pattern to prevent customer PII from reaching OpenAI. GitHub Actions CI/CD pipeline to EC2.
Next.js · FastAPI · DevOps
Multi-environment (Dev / QA / Production) VPS deployment of a Next.js frontend and FastAPI backend. Solved Node.js version conflicts, Nginx routing conflicts between /api/auth and FastAPI /api/v1, JWT secret alignment, and Set-Cookie header stripping.
IoT · Docker · AWS ECR
Containerised IoT stack on EC2 using Docker Compose, GitHub Actions CI/CD, and AWS ECR. Managed IAM policies, ECR push/pull configuration, and docker-compose migration from local build references to ECR image references. Phased toward AWS IoT Core and MSK.
Spring Boot · Java · REST
Spring Boot 3.x REST APIs with Spring Security 6, JPA/Hibernate, Lombok, JWT authentication, pagination, and a generic ReturnSet<T> response wrapper. simpleShop adds order management, Jackson serialisation fixes, and a GlobalExceptionHandler for production-safe error handling.
Infrastructure · Terraform · AWS
Terraform-managed inter-region peering between Mumbai (ap-south-1) and Hyderabad (ap-south-2), including VPC endpoints for SSM Session Manager on private subnets. Modular architecture pattern reusable across AWS and Azure equivalents.
PostgreSQL · DevOps · Migration
Zero-downtime migration of rsb_proddb (120GB+) from AWS EC2 to Hostinger VPS using logical replication. Resolved OID mismatches, max_replication_slots exhaustion, partition table replica identity issues, and pg_hba.conf gaps. Nightly pg_dump + rsync backup pipeline with SMTP alerts.
Credentials
Industry-recognised credentials across OCI, Azure, AI security, and software engineering.
Oracle Cloud Infrastructure
OCI Multicloud Architect Professional
Oracle · 2024
Oracle Cloud Infrastructure
OCI Architect Associate
Oracle · 2024
Microsoft Azure
Azure Administrator Associate (AZ-104)
Microsoft · 2024
Microsoft Azure
Azure DevOps Engineer Expert (AZ-400)
Microsoft · 2024
Securiti
AI Security & Governance
Securiti · 2024
NPTEL · IIT Madras
Python Programming
NPTEL · Elite + Silver
Udemy
AWS Networking — Zero to Hero Masterclass
Udemy · 2024
Udemy
Azure Zero to Hero: Master Microsoft Cloud
Udemy · 2024
Tech Stack
The full toolkit — from infrastructure provisioning to AI-powered APIs to frontend delivery.
Get in touch
Cloud architecture, AI integration, IoT platforms, or full-stack delivery — let's talk about what you're building.