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John Martines

I run IT for a living, build AI for small businesses, write books, and spend every season I can on Newton Lake, skiing across it barefoot or diving to the bottom of it.

I live in Carbondale with my wife, Tammy. I’m dad to Johnathan and Saylor, stepdad to Jordan, and grandpa to Jordan’s kids, Rosie and Will.

Scroll to descend. Breathe normally.

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Work

I learn and write code and books, and I’ve been doing it for more than forty years. I’ve written a complete BASIC interpreter in C++ from scratch, with its own lexer, parser and execution engine. And for thirty years I’ve built integrations: connecting new technology to the systems people already depend on, and making it work where it has to work. Hospitals first, then the businesses I run IT for, and now AI for small businesses.

  • 40+Years writing code, starting on an Apple II in 1983
  • 1994Studied neural networks, 28 years before ChatGPT
  • 30+Hospital systems where I built the integrations for speech recognition, clinical dictation and HL7
  • 1,500+Endpoints at the managed IT company I built from scratch and sold

I ran systems support for a voice recognition company before voice recognition worked. Now I build AI that answers the phone.

By day Director of Managed Services at a regional IT provider in Northeastern Pennsylvania.

My company

Applied AI Technology

Practical AI for small businesses · Scranton, PA

Most small businesses have tried ChatGPT or Copilot. Very few have it doing real work: answering customers, reading the paperwork, keeping the books current. I set AI up around the way a business already runs, train the people who’ll use it, and build what’s missing when nothing off the shelf fits.

  • A free Workflow Review, with a written answer in 48 hours
  • One pilot live in 30 days, at a fixed price
  • The owner approves everything that goes out

Small by design. The person you talk to is the person who builds it.

What I write

Applied AI Insider

A free AI library for small-business owners

I write the brief, the articles and the books for people who run a small business and don’t have time to follow AI all day. No hype, no jargon, and nothing I wouldn’t tell a client.

  • A five-minute brief at 7:15, Monday to Saturday, with every source named and dated
  • The Week Ahead, Sunday evenings
  • Short courses, free tools, and starter packs by trade
  • The whole book series, free to read

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Books

Practical guides for owners and employees putting AI to work in a small business. All of them are free to read in Applied AI Insider.

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Water

Barefoot waterskiing is speed, noise, balance and reaction. Diving is slow, quiet and controlled. One happens on top of the water and the other underneath it, but they take me to the same place.

Three generations on the water

Barefooting runs in the family. My dad, John G. Martines, was barefooting in 1967. My son Johnathan was USA Water Ski’s 2012 Barefooting Athlete of the Year, Open Men’s national overall champion in 2012 and 2013, and skied for the U.S. Elite team at the 2014 World Championships. At the 2018 Eastern Regionals he won Open Pro Men, with his dad and his granddad on the river. My daughters, Saylor and Jordan, wakeboard on the lake.

I don’t own any of this. I get a turn.

On top · Barefoot waterskiing

  • 1986 My first Eastern Region tournament.
  • 1980s Fell on camera in Florida trying to ski on my knees, during the filming of Hot Rockin’ Feet II. It made the video.
  • 1988 First in Boys 3 tricks.
  • 1990 First in Men’s 1 tricks, jump and overall.
  • 2008 Back to competing, the same year Johnathan won his first Eastern Regional title.
  • 2010 Fourth in tricks at the U.S. Nationals.
  • 2013 Bronze in Men’s 3 slalom at the U.S. Nationals.
  • 2026 Still competing at the Eastern Regionals.

Some days you nail the trick. Some days you become the blooper in the video. Either way, you were there.

I was also the webmaster for barefoot.org, the American Barefoot Club, for a while.

Underneath · Scuba

  • I grew up on the lake watching my dad and my uncle dive, and always wondered what it was like down there.
  • SDI Rescue Diver, plus Deep, Nitrox, and Night, Limited Visibility and Navigation.
  • Night dives on the Antilla wreck in Aruba.
  • In Newton Lake I’ve found bottles from the early 1900s and a sunken wooden boat, and met some enormous bullheads at night.
  • I built Diver Down to keep my dive log, and mapped Newton Lake for it from a 1947 depth chart.

From my YouTube channel

On top

Underneath

Off-season

Between the last dive in October and the first barefoot run in April, there’s Elk Mountain. I learned to ski there, minutes from home, and later switched to snowboarding.

Cover of Things the Water Taught Me

The book

Things the Water Taught Me

Reflections on presence, fear, failure, time, and a life in motion

Underwater, I notice my breathing.

Eighteen short pieces about what the water kept teaching me while I was busy skiing.

Coming to paperback and Kindle. Get it on Amazon

100 ftBottom

You made it to the bottom.

Say hello. Email is the fastest way to reach me.

Email me LinkedIn

Cold water in April.
Old bottles on the bottom of the lake.
One more breath.

Ascend slowly

© 2026 John Martines · Carbondale, PA