Offline-first farm PWA
KhetFlow
- Next.js
- TypeScript
- Tailwind CSS
- Dexie (IndexedDB)
- Supabase
- PWA
- Vercel
Next.js
TypeScript
Tailwind CSS
Supabase
PWA
VercelTracks every crop cycle of a shade-net farm in Jhalawar, Rajasthan, from seed purchase to final sale.
Abhinav Patidar
Building Estimo. Open to hard problems.
I build softwarethat runs businesses.
Senior Software Engineer · Systems Builder · Product Engineer
I turn complicated business processes into scalable software systems, products, automation, and intelligent tools.
- Role
- Senior Software Engineer & AI Engineer
- Company
- Indus Analytics
- Since January 2023
- Based
- Indore, India
- --:-- IST
From problem to product.
What arrives is rarely a spec. It is a plant that quotes in Excel and plans on the phone. The work is turning that into a system that holds.
Real-world problem
- Excel everywhere
- Manual calculations
- Repetitive processes
- Disconnected systems
- Data inconsistencies
- Communication gaps
- Manual reporting
Engineering
- Understand
- Model
- Design
- Build
- Automate
- Improve
System
- ERP
- APIs
- Database
- Integrations
- Web & mobile
- Automation
- Analytics
- AI where useful
Flagship
Estimo
The ERP behind printing & packaging businesses.
Indus Analytics' ERP for printing and packaging manufacturers. Everything from the first enquiry to dispatch and MIS reporting, in one multi-company system. I build and support it end to end: the Next.js costing platform, the C# Web APIs behind it, the SQL Server data model, and the AI layer on top.
This isn't a dashboard project. This is a business operating system. Follow one order through it:
ORDER 2417 · 10,000 folding cartons · example
Stage 01 / 08
Enquiry & Estimation
Material, machine and process costing with per-quantity columns and freight terms.
Cost head5,00010,00025,000
Board 350 GSM2.902.752.60
Printing 4C + varnish1.601.200.95
Lamination0.700.550.45
Die-cut & pasting1.100.650.40
Freight0.500.300.20
Unit cost₹0.00₹0.00₹0.00
Under the hood
- Backend
- C# Web APIs on .NET Framework 4.8, moving to .NET 10
- Frontend
- Next.js 16 / React 19, one responsive codebase from 320px up
- Data
- SQL Server, multi-company and multi-production-unit model
- Real-time
- SignalR push, audit log and notifications on every action
- Mobile
- PWA with service-worker push, Capacitor for Android and iOS
- Integrations
- SAP, Zoho and other ERPs, WhatsApp messaging, Microsoft Graph, AWS S3, Azure
- Intelligence
- Semantic Kernel assistants calling the ERP's own services
One codebase, every device
Before
DevExtreme, jQuery and VB.NET desktop screens
After
One responsive Next.js application. Module visibility on mobile is a database flag, the DataGrid switches to a card view under 768px, and Capacitor wraps the same build for Android and iOS.
Integrations
An ERP never works alone.
Real plants already run SAP or Zoho, talk to customers on WhatsApp and send everything by email. I connect Estimo to those systems so data moves on its own instead of being typed twice.
Messaging
Users message customers on WhatsApp straight from the application, from the screen they are already working on. No copying numbers, no switching to a phone.
- → Quotations
- → Order updates
- → Documents
Estimo · Quotation
QT-0931 · ₹54,500
Send on WhatsAppCW
Carton Works
Business account · example
QT-0931.pdf
Quotation · 1 page
Your quotation for 10,000 cartons.
11:42
Order SO-1182 is dispatched. Challan DC-0764 attached.
11:43
More systems.
Different problems, same approach. Only projects that exist, with no invented numbers.
Sales and client platform
Indus CRM
- ASP.NET
- Web APIs
- SQL Server
ASP.NET
SQL ServerLead, client and dashboard management for multiple live clients, in the same product family as the ERP.
And then I add intelligence.
When traditional software isn't enough, I experiment with AI, agents, LLMs and automation to make systems more capable. AI is integrated into real software systems, not treated as a chatbot demo.
Synthia / ParkBuddy
A router assistant that hands off to specialist Costing, Printing and MIS assistants. Each one calls real backend tools instead of guessing, so a planner can ask a question in plain language and get an answer computed by the same services the ERP uses.
- Assistants
- General router, Costing, Printing, MIS
- How it works
- Tool calling into the ERP's own services
- Prompts
- Strict, for deterministic, no-filler answers
- My role
- Architecture, prompts, backend tools
- LLMs
- Semantic Kernel
- AI agents
- MCP
- Tool calling
- Automation
- User
- AI router
- Specialised assistants
- Business tools
- ERP · APIs · Database
The stack, by job.
Grouped by what each part does in a system. Not a count, not a cloud.
Build
- C#
- .NET Framework 4.8 → .NET 10
- ASP.NET Web API
- Dapper / ADO.NET
- Background workers
- xUnit
Interface
- Next.js 16 / React 19
- TypeScript
- Tailwind CSS / Radix UI
- TanStack Query & Table
- ECharts dashboards
- PDF & Excel export
Data
- SQL Server design
- Stored procedures
- Multi-company data models
- Excel-to-SQL import pipelines
- SignalR real-time
Automation
- Python utilities (PyQt6, pyodbc)
- Playwright / Puppeteer
- Scripting & internal tools
Integrations
- SAP
- Zoho
- Other ERP connectors
- WhatsApp messaging
- Microsoft Graph email
- REST APIs & webhooks
Intelligence
- OpenAI tool calling
- Microsoft Semantic Kernel
- Multi-assistant orchestration
- MCP servers & custom agents
- Claude Code / Codex / Cline
Delivery
- PWA / service workers
- Capacitor for Android / iOS
- React Native / Expo
- AWS S3 / Azure storage
- Vercel
Things I build because I’m curious.
Experiments and internal tools. What I tried, what happened, what I learned.
How I think
- Understand the business.
- Model the system.
- Automate what shouldn't be manual.
- Add AI where it actually helps.
Experience
Indus Analytics
Senior Software Engineer & AI Engineer
2023 — Present · Indore, India
Education
Bachelor of Computer Applications (BCA)
- Build and maintain a multi-module ERP / CRM platform for printing and packaging, across manufacturing, planning, inventory, CRM, dashboards and reporting, for multiple live multi-company deployments.
- Rebuilt the costing, quotation and approval workflows of the ERP as a Next.js 16 / React 19 application over C# Web APIs, serving desktop and mobile from one codebase.
- Designed and shipped LLM-powered assistants, including the Synthia / ParkBuddy multi-assistant architecture on Microsoft Semantic Kernel with tool calling into backend services.
- Built an end-to-end carton cost-estimation engine plus the inventory, sales-order and purchase-order modules around it.
- Developed bulk costing and item-master save workers and an Excel-to-SQL master import tool.
- Integrated Estimo with SAP, Zoho and other ERPs, so orders, masters and invoices move between systems instead of being keyed in twice.
- Built WhatsApp messaging into the application, so users message customers directly from the screen they are working on.
- Implemented SignalR push, AWS S3 / Azure storage, Microsoft Graph email and QR-based inventory modules.
- Own production support for live applications: root-cause analysis, change requests, deployments and secure code review.
Where this comes from
I grew up in Jhalawar, Rajasthan, finished a BCA and joined Indus Analytics in Indore in January 2023. The first thing I touched was a live, multi-tenant ERP for printing and packaging manufacturers, built on ASP.NET Web Forms and VB.NET. I learned the domain the hard way: by supporting real plants, real quotes and real dispatches.
That domain knowledge is what I build on now. I rebuilt the costing side of that ERP as a modern Next.js and React application on top of C# Web APIs, one codebase serving desktop and mobile. I added AI assistants that call the same backend tools a planner uses, and I wrote the Python utilities the support team runs every day.
I care about one thing above all: the software should match how the business actually works, and stay simple for the person using it.
Got a difficult problem?
Let's build something useful.