Software engineer · Londonderry, NH

SeanDuggan

I build tools for technical publications at Raytheon, and I write about making AI actually useful.

Sean Duggan

01

About

A software engineer who likes building things that make work faster and less painful.

I started out scripting and modding Source engine games. Early on I worked on enterprise applications; since then I've moved into cloud, AI and embedded systems.

Right now I build major enhancements for Technical Manuals at Raytheon, where I'm the go-to person for the AutoCAD API and XML processing. Outside of work: Jiu-Jitsu, and playing games with my wife.

C#PythonC++ AI workflowsApplication developmentCloudEmbedded systems

02

Writing

How we got AI to not suck

What an LLM actually is, why agents work so much better than chat, and how to build the factory around them.

AI assisted engineering for dummies

A practical guide for engineers who don't write software. Worked example: designing and simulating a PC fan.

03

Work

Mar 2022 — now

Raytheon RTXSenior Software Engineer

Building major improvements for Raytheon Technical Publications.

Jul — Dec 2021

OptogloInformation Systems Director

Led IT projects for a solar sign startup: data pipelines, physical infrastructure, security.

Jun 2020 — Jun 2021

Cairn ApplicationsSoftware Developer (contract)

Built a custom invoice creation process.

04

Hosted here

CPU Fan Design

A 120 mm PC fan designed from scratch with an AI agent: CAD, drawings, airflow simulation and renders.

MOLTEN

The sandpile up top, done properly in three.js.

Poochy Poems

Dog facts, pictures and poems, generated.

Index

Everything else →

The full projects list.

Also: Stable Diffusion AWS serverModel rocket flight computerWikipedia summarizer (BERT)Windows batch file processor