Engineering
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RAG Pipeline Design for Non-Hallucinating AI: What We Learned Shipping to Production
Most RAG implementations that work in demos fail in production. Here is the architecture — chunking strategy, embedding model choice, hybrid retrieval, confidence thresholding — behind a pipeline that achieves >80% retrieval accuracy at scale
Gaurang Ghinaiya
June 6, 2026
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How We Built Bidirectional HCHB Integration: Technical Lessons from a Production Platform
HCHB is the largest home health EMR in the US. Integrating with it bidirectionally — ADT feeds in, MDM documents out — is harder than any documentation suggests. Here is what we learned shipping it in production.
Gaurang Ghinaiya
May 1, 2026
The HIPAA Audit Log Schema We Use in Every Healthcare Project
Audit logging is the single most under-engineered part of HIPAA-compliant systems. Here is the exact schema we use in production — and the access patterns it needs to support
Gaurang Ghinaiya
April 22, 2026
React Native vs Flutter in 2025: What Shipping Both in Production Taught Us
We have shipped production apps in both React Native and Flutter for healthcare and e-commerce clients. Here is the honest comparison — performance, ecosystem, hiring, and the cases where each wins
Gaurang Ghinaiya
April 15, 2026
Multi-Tenant SaaS Architecture: The Design Decisions That Come Back to Haunt You
Multi-tenancy sounds simple until you are three years in and trying to isolate a security incident, debug a performance problem affecting one tenant, or give an enterprise client the dedicated infrastructure they require. Here is how to design it right from the start
Gaurang Ghinaiya
April 8, 2026
The AI Feature Your E-commerce Platform Actually Needs (It Is Not a Chatbot)',
AI chatbots are the most visible e-commerce AI implementation and usually the least valuable. The highest-ROI AI applications in e-commerce are invisible to the customer — they run in the background and make every other part of the operation more efficient.
Gaurang Ghinaiya
April 3, 2026
Why Prompt Engineering Alone Will Not Save Your LLM Product
Prompt engineering is a starting point, not a strategy. The LLM products that survive production are built on output validation, fallback architecture, and human-in-the-loop design — not on a carefully worded system prompt.
Gaurang Ghinaiya
April 1, 2026
The Post-Sale Engineering Playbook: How to Turn First-Time Buyers into Repeat Customers
Most e-commerce engineering investment goes into the purchase funnel. The retention opportunity — the point after the first order where a one-time buyer either becomes a repeat customer or disappears — is almost always underdeveloped
Gaurang Ghinaiya
March 11, 2026
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