---
title: "Services | Mike Sinn"
description: "AI engineering, software development, websites, local tech help in Edwardsville and the St. Louis area, health & economic modeling, and root-cause failure analysis."
url: https://mikesinn.com/services
---

# Services

Software and AI tools for your business, computer and IT help, cost and impact models, and lab analysis of why something failed.

[Let's talk](https://mikesinn.com/contact) 

## What do you need?

- [Computer help — Computers, Wi-Fi, printers, and phones, in person around Edwardsville and St. Louis. Prices posted. — Prices and how it works](https://mikesinn.com/tech-help)
- [Small business IT and websites — The office network, the accounts, the backups, and the website people find when they search for you. — IT and websites](https://mikesinn.com/business)
- [AI automation — Email replies, documents into data, and answers from your own documents. Each one tested on your own data first. — The three jobs and a demo](https://mikesinn.com/business#ai)
- [AI and software development — LLM apps, agents, web apps, and data platforms, built remotely for anyone. — Details](https://mikesinn.com/services#software)
- [Health and economic modeling — Causal inference, cost-benefit analysis, and impact estimates with honest uncertainty ranges. — Details](https://mikesinn.com/services#modeling)
- [Failure analysis — Why a part, product, or material failed, and what to change so it doesn't happen again. — Details](https://mikesinn.com/services#failure-analysis)

## AI and software development

Web apps, mobile apps, data platforms, and AI tools that do one job well. Code that works, and tests that show it does.

### AI apps and agents

LLM apps, agents, and search over your documents (RAG), with evaluations that measure the results. OpenAI and Anthropic Claude models, Vercel AI SDK.

### Web and mobile apps

Full-stack with React, Next.js, TypeScript, Node, PHP/Laravel, plus React Native and Chrome extensions. The stuff that makes buttons do things.

### Data platforms

Built systems processing 12M+ data points. I can make your data do tricks too.

### Cloud & DevOps

AWS, Docker, CI/CD, Cloudflare. Hosting, deploys, and backups set up so your app stays up. Hardware and microcontrollers too.

## Health & economic modeling

Causal inference, cost-benefit analysis, and economic models. Impact estimates with honest uncertainty ranges instead of confident nonsense.

### Causal inference

Figuring out what actually causes what from messy real-world data. Correlation is not enough and we both know it.

### Economic & cost-benefit modeling

Quantified impact estimates with real uncertainty ranges. Monte Carlo, sensitivity analysis, and confidence intervals that admit what we don't know.

### Health data infrastructure

Pipelines and analytics for clinical and observational data at scale.

### Impact analysis

Translating interventions into lives, dollars, and DALYs. The models don't care about your feelings.

## Root cause & failure analysis

Find out why a part, product, or material failed: chemical testing, materials testing, and a written root cause.

### Root cause failure analysis

Something broke? I'll find out why, so you can stop it from happening again.

### Chemical analysis

FTIR, SEM/EDS, ICP-OES, XRF, TGA, optical emission spectroscopy. If you know what those acronyms mean, we should talk.

### Materials testing

Forensic investigation, quality control, compliance testing. Finding problems before your customers do.

### Quality control

Compliance testing and consumer protection regs. Making sure your product doesn't end up on the news for the wrong reasons.

## Past work

### Decentralized FDA

Software that turned 12 million data points from thousands of people into 50,000+ studies on what helps and what hurts.

[Visit](https://dfda.earth) 

### Think by Numbers

Data-driven policy analysis that 2 million people read. The policies remain unchanged.

[Visit](https://thinkbynumbers.org) 

### Failure analysis

Failure analysis and chemical testing for manufacturers at a commercial testing lab.

[Resume and every tool I use](https://mikesinn.com/resume#tools) 

## Have a problem?

Whether it's an AI tool to build, a model to run, software to ship, or hardware that needs investigating, I can probably help. Or at least make interesting spreadsheets about it.

[Get in touch](https://mikesinn.com/contact)