Harsh Mer
AI Data Engineer · Developer Advocate · Community Builder
I'm an AI Data Engineer at Exillar, based in Rajkot, Gujarat, India. I build data pipelines, AI agents, and LLM integrations using Python, PySpark, Databricks, Azure Data Factory, Kestra, n8n, and RAG pipelines.
Beyond engineering, I'm deeply involved in the developer community — I organize GDG Cloud Rajkot, serve as a core team member at GDG Ahmedabad, and am a community ambassador for Lamatic.ai and Qwen. I speak at conferences and meetups on topics like MCP, AI pipelines, Google ADK, and n8n, and publish technical codelabs at harshmer.stepwik.com.
I'm currently building toward a hybrid Data Engineering + Developer Relations career, with a focus on open-source tooling in the modern data stack.
Projects
Open-source data pipeline ingesting US federal contracts data from the SAM.gov API into DuckDB, visualized with Metabase. Deployed on AWS Lightsail.
Kestra · Python · DuckDB · Metabase · AWS Lightsail
CLI Python tool using OpenAI native tool calling (gpt-4o-mini) to autonomously document PostgreSQL databases — generating data dictionaries, column docs, and ER diagrams.
Python · OpenAI API · PostgreSQL · Supabase
Custom Singer tap built with Meltano to load SafetyCulture REST API data into PostgreSQL via Supabase, with incremental state management. Presented at Meltano Office Hours.
Meltano · Singer · Python · Supabase · PostgreSQL
FastMCP server delivering personalized morning motivation and historical facts. Integrates live quote and facts APIs, deployed on Prefect Horizon with auto-redeploy on push, and connects directly to Claude Desktop.
Python · FastMCP · Prefect Horizon · Claude Desktop
Next.js app that extracts YouTube video transcripts and lets you chat with the content. Built with v0.dev and deployed live on Vercel.
TypeScript · Next.js · Tailwind CSS · Vercel
Talks
Intro to MCP Server and Google ADK
Co-presented with Savan Padaliya at NextGen AI by GDG Cloud Rajkot. Covered Model Context Protocol fundamentals, building MCP servers, and integrating with Google ADK for agentic workflows.
GDG Cloud Rajkot · MCP · Google ADK
How to Create Mini Apps Using Google Opal
Closing session at Accelerating Development with AI — GDG Cloud Rajkot. Demonstrated building and sharing AI-powered mini apps using Google Opal with natural language — no coding or setup required.
GDG Cloud Rajkot · Google Opal · No-Code AI
Community
I'm active in the developer community across India and online. I organize GDG Cloud Rajkot, serve as a core team member at GDG Ahmedabad, and am a community ambassador for Lamatic.ai and Qwen. I've spoken at conference sessions and webinars on MCP, n8n, AI pipelines, Google Opal, and Google ADK — and I publish technical codelabs at harshmer.stepwik.com.
- GDG Cloud Rajkot — Organizer
- GDG Ahmedabad — Core Team Member
- Lamatic.ai — Community Ambassador
- Qwen — Ambassador
- Meltano — Office Hours Community Speaker
Writing
May 1, 2026
Building a Kestra MCP Server
April 10, 2026
Metadata Intelligence Agent with OpenAI Tool Calling
March 20, 2026
Building AI Pipelines with Kestra
April 9, 2024
Embracing Vim: The Unsung Hero of Code Editors
April 8, 2024
Spaces vs. Tabs: The Indentation Debate Continues
April 7, 2024
The Power of Static Typing in Programming