MCMatthew CoatneySoftware Engineer · Systems Builder

Engineering useful intelligence

I build software that turns complexity into momentum.

Product-minded software engineering across AI, cloud systems, web applications, automation, and connected experiences — designed to feel clear, fast, and inevitable in the hands of the person using them.

Explore selected work @neuroteknowizard ↗

Selected work

Projects designed around the job to be done.

Scroll through the center rail. The sequence loops continuously.

PROJECT 01Flagship project
Sigil Books generated listing for Andersen’s Fairy Tales
From image → market-ready dataReduce repetitive research. Preserve human judgment.
AI · Commerce · Automation01 / 02

AI-assisted eBay Lister

Turn a photograph into a confident listing — without turning the seller into a data-entry clerk.

A product-first listing workflow built around the real bottleneck in resale: the cognitive cost of identifying an item, researching it, estimating market value, and translating that knowledge into structured marketplace data. The system uses AI to collapse those steps into a fast, guided workflow so the seller can spend more time sourcing, evaluating, and shipping inventory — the work that actually creates value.

PythonFastAPIAWSAI identificationMarket pricingeBay APIAsync workflows
Watch project demo ↗
PROJECT 02Full-stack system
The Seawich cloud-connected digital menu system
Case study frameworkProblem → decisions → system → outcome.
AWS · IoT · Digital Signage02 / 02

The Seawich — Digital Menu System

Change the price once. Every display gets the update without touching the displays.

A cloud-connected digital signage and remote price-management system designed for Raspberry Pi displays. Independent Angular and Ionic menu screens provide the customer-facing signage while an authenticated management interface lets pricing be changed remotely. AWS AppSync, GraphQL, DynamoDB, Cognito, and Amplify connect the displays, data, authentication, and deployment into one working full-stack system.

AngularIonicTypeScriptRaspberry PiAWS AmplifyAppSyncGraphQLDynamoDBCognito
LAUNCH LIVE DEMO ↗
OPEN PRICE CHANGER ↗
PUBLIC DEMO LOGIN
Usernamedemo@seawich.app
PasswordSeawichDemo2026!
PROJECT 01Flagship project
Sigil Books generated listing for Andersen’s Fairy Tales
From image → market-ready dataReduce repetitive research. Preserve human judgment.
AI · Commerce · Automation01 / 02

AI-assisted eBay Lister

Turn a photograph into a confident listing — without turning the seller into a data-entry clerk.

A product-first listing workflow built around the real bottleneck in resale: the cognitive cost of identifying an item, researching it, estimating market value, and translating that knowledge into structured marketplace data. The system uses AI to collapse those steps into a fast, guided workflow so the seller can spend more time sourcing, evaluating, and shipping inventory — the work that actually creates value.

PythonFastAPIAWSAI identificationMarket pricingeBay APIAsync workflows
Watch project demo ↗
PROJECT 02Full-stack system
The Seawich cloud-connected digital menu system
Case study frameworkProblem → decisions → system → outcome.
AWS · IoT · Digital Signage02 / 02

The Seawich — Digital Menu System

Change the price once. Every display gets the update without touching the displays.

A cloud-connected digital signage and remote price-management system designed for Raspberry Pi displays. Independent Angular and Ionic menu screens provide the customer-facing signage while an authenticated management interface lets pricing be changed remotely. AWS AppSync, GraphQL, DynamoDB, Cognito, and Amplify connect the displays, data, authentication, and deployment into one working full-stack system.

AngularIonicTypeScriptRaspberry PiAWS AmplifyAppSyncGraphQLDynamoDBCognito
LAUNCH LIVE DEMO ↗
OPEN PRICE CHANGER ↗
PUBLIC DEMO LOGIN
Usernamedemo@seawich.app
PasswordSeawichDemo2026!
PROJECT 01Flagship project
Sigil Books generated listing for Andersen’s Fairy Tales
From image → market-ready dataReduce repetitive research. Preserve human judgment.
AI · Commerce · Automation01 / 02

AI-assisted eBay Lister

Turn a photograph into a confident listing — without turning the seller into a data-entry clerk.

A product-first listing workflow built around the real bottleneck in resale: the cognitive cost of identifying an item, researching it, estimating market value, and translating that knowledge into structured marketplace data. The system uses AI to collapse those steps into a fast, guided workflow so the seller can spend more time sourcing, evaluating, and shipping inventory — the work that actually creates value.

PythonFastAPIAWSAI identificationMarket pricingeBay APIAsync workflows
Watch project demo ↗
PROJECT 02Full-stack system
The Seawich cloud-connected digital menu system
Case study frameworkProblem → decisions → system → outcome.
AWS · IoT · Digital Signage02 / 02

The Seawich — Digital Menu System

Change the price once. Every display gets the update without touching the displays.

A cloud-connected digital signage and remote price-management system designed for Raspberry Pi displays. Independent Angular and Ionic menu screens provide the customer-facing signage while an authenticated management interface lets pricing be changed remotely. AWS AppSync, GraphQL, DynamoDB, Cognito, and Amplify connect the displays, data, authentication, and deployment into one working full-stack system.

AngularIonicTypeScriptRaspberry PiAWS AmplifyAppSyncGraphQLDynamoDBCognito
LAUNCH LIVE DEMO ↗
OPEN PRICE CHANGER ↗
PUBLIC DEMO LOGIN
Usernamedemo@seawich.app
PasswordSeawichDemo2026!
The operating principle

Build the solution, not merely the tool.

The best software disappears into the work. I approach engineering as a product discipline: understand the friction, reduce cognitive load, automate the expensive repetition, and make the system legible enough that people can trust it.