HI, I'M JOEL

Electrical turned AI/ML Engineer

AI and Machine Learning engineer with a knack for problem solving, debugging, and inventive ideas.

Below is a showcase of AI/ML projects, web apps, and hardware projects I've built. I hope you enjoy!

A portrait of Joel Wigton, a machine learning engineer

AI / ML / SOFTWARE SKILLZ

Some of the technologies I'm comfortable with..

TensorFlow logo
Keras logo
Python logo
NumPy logo
Pandas logo
OpenCV logo
Kaggle logo
Google Colab logo
ChatGPT logo
DALL-E logo
Django logo
Flask logo
Selenium logo
Git logo
PostgreSQL logo
Cloudflare Workers logo
JavaScript logo
A stylized image of a quotation mark

After 13 years designing computer chips, writing firmware, and designing electronics, I switched careers to AI and Machine Learning.

My superpower is problem solving, which I achieve through my ability to learn quickly and research thoroughly.

Since AI and ML are also superpowers for problem solving, they make a symbiotic and powerful extension of my abilities.

A profile photo of Joel Wigton, a web developer

Some Web Apps I've Made

Spaywall.comAn icon for an external link

A website and browser extension to help make online news more freely accessible for all, and legally!

An icon of a square bar chart

Built to Scale

Runs on JavaScript in the cloud via Cloudflare Workers. Browser extension is client-side JavaScript.

An icon of a pinkish purple heart

Loved by Users

The most popular paywall extension in the Chrome store. Over 35K active users and growing.

An icon of a trophy

Always Improving

You know you've made something good when the copycats come crawling..

A screenshot of the popular browser extension and paywall bypass tool Spaywall and site Spaywall.com

Archived Web Apps

Various projects or bootstrapped startup ideas that didn't make it, for one reason or another.

A collection of bugout bag kits

Haven Bugouts

Custom storefront related to the survival gear niche. The site allowed you to create bespoke survival kits in a custom-built shopping cart and then passed you to checkout on Amazon. Two person project. Python/Django, Heroku, background workers, Amazon Product Advertising API, HTML/CSS/JavaScript.

A screenshot of a web app for tracking work progress

Checkmate

Developed a web app that tracks the progress of circuit board designs through various checklist milestones. Database-backed CRUD app allowed users to add and remove blocks, assign block owners, and mark progress on each checklist item across multiple blocks. Python/Django, AJAX, HTML/CSS/JavaScript.

A screenshot of a web app for subscribing to multiple digital newspaper subscriptions

KnewsStand

One digital news subscription that would get you access to all partner sites. I developed a proof of concept that let you log into the partner sites (similar to Single Sign-On). The difficulty of partnering with giant conglomerates and differences in co-founder expectations pretty much doomed this one from the start.

An image of a hardware product enclosure and PCB

Hardware

My first loveAn icon for a heart

I made an EV

C-Rex

The conversion of my Honda CRX to battery-powered EV. Over 300 hours put into engineering, custom metal fabrication, circuit design, and high-voltage electrical work.

C-Rex was faster than stock, cost less to operate, had fewer moving parts, and was more fun to drive! Sadly, I sold him when I became a dad since he had no backseats. 😭

A man lifting an engine out of a car on an engine hoist

Gutting the internal combustion parts

The easy part.. if it leaks or squeaks, it's gone!

An electric motor mounted to a transmission for an EV project

Installing the electric motor

DC motor mounted to the original transmission

A shipment of blue EV batteries

Batteries arrived (to my great relief)

Still have that fresh-from-Shenzen smell!

A man strapping together EV batteries

Strapping the battery packs

A good chunk of time went into designing the battery packs, the heart of any EV

EV batteries in a welded metal rack

Rear battery pack

I cut a hole in the floor behind the front seats. GR8 Stuff is my friend.

A battery rack being installed into an EV

Installing front battery racks

Painted maize, of course

A man proudly displaying his EV drivetrain. EV grin prominent.

Electric drivetrain finished

Six months of planning, setbacks, and late nights

An electrified Honda CRX

Full body, wheel, & glass restoration

Lots of body work and a brand new paint job later

I made a wrist-worn motion-activated stungun

Stunly

After my sister had a scary encounter in the park, I set out to make a stungun that could be operated hands-free, so there was no excuse to leave it at home.

An onboard accelerometer detects an intentional double-shake of the device to set it off. I designed the circuit and PCB, drew the enclosure in CAD, and wrote the firmware.

The final product worked, but my wife was too scared to have such high-voltage so near her wrist. And that's the tale of how I learned the hard lesson of not talking to my users first.

A PCB with small components

Teeny tiny parts

The biggest challenge of this project was making the damn thing small enough

A PCB being baked in a reflow toaster oven

Baking an early prototype

I didn't have a reflow oven, so I made one with a toaster oven and a kit

Sensor readings graphed on a computer screen

Measuring and plotting accelerometer response

Plotting the accelerometer readings in Python to dial in the best settings

Equations on a whiteboard

The profile of a double-shake

We want it to trigger during an intentional shake, but not from normal running

A man who is doing embarrassing things in the name of technological progress

Running in the lab like an idiot

Strapping a wired-in early prototype to my arm and jogging in place to get live readings

Dozens of small lithium polymer batteries on a workbench

Soooo maaany batteries..

Tested batteries on the bench across dozens of manufacturers (pro tip: manufacturers lie)

A CAD rendering of a custom electronics enclosure

An enclosure rendering

Things always look so much bigger on your screen than when 3D printed

A 3D rendering of a wrist-worn stungun

You want renderings? I've got plenty

But who cares, no big deal, I want morrrre!

I made an internet-connected car alarm

BMMPR

As a consultant, I turned my client's idea for an internet-connected impact-sensing car alarm into a shipping product. He's sold millions in revenue.. wish I'd asked for equity 😂

BMMPR plugs into the OBD-II port, and has cellular and bluetooth connectivity, GPS, and an accelerometer. I designed all the hardware and wrote the firmware to connect to the mobile app and an AWS backend.

A breadboard electronics prototype

Breadboarding the prototype

The journey of 1000 miles begins with one giant breadboard covered in evaluation boards

A thermal image of a short-circuit hotspot

Debugging GPS lock

Using a development board to figure out why I wasn't getting GPS lock

An internet-connected smart car alarm

BMMPR mainboard

The mainboard contains the OBD connector, buck converter, accelerometer, and cellular radio

An internet-connected smart car alarm

BMMPR daughterboard

The daughterboard plugs on top of the mainboard and has the microcontroller, bluetooth radio, and GPS module

Online Courses

Learning whatever skills I need to solve problems.

A certificate of completion

TensorFlow Developer CertificateAn icon for an external link

Google-certified TensorFlow Developer Certificate. Foundational, practical machine learning skills via the building and training of models using TensorFlow.

TensorFlow Keras Regression Classification Image Classification NLP Time Series

A certificate of completion

DeepLearning.AI's Natural Language Processing SpecializationAn icon for an external link

Foundations of NLP covering logistic regression, naïve Bayes, hidden Markov models, word embeddings, recurrent neural networks, Siamese networks, encoder-decoder models, attention, and transformers.

Autocomplete Sentiment Analysis Shakespeare Generative RNN Question Duplicates Seq2Seq Chatbots Summarizers Machine Translation

A certificate of completion

DeepLearning.AI's Deep Learning SpecializationAn icon for an external link

Fundamentals of Deep Learning taught by Andrew Ng. Identify key architectural tradeoffs, analyze datasets, build deep neural networks in TensorFlow, build CNNs for image recognition, build and train RNNs and HuggingFace transformer models for NLP tasks.

NN from Scratch Face Recognition YOLO Image Segmentation Sentiment Analysis NMT Trigger Word Detection TensorFlow

A certificate of completion

Stanford's Machine Learning SpecializationAn icon for an external link

Fundamentals of machine learning taught by Andrew Ng. Supervised machine learning algorithms, including linear regression, logistic regression, neural networks, decision trees, and reinforcement learning in Python.

Handwritten digit recognition Spam classification filter Anomaly detection Movie recommendation engine

A certificate of completion

Harvard's CS50 Web Programming with Python and JavaScriptAn icon for an external link

Design of web apps with Python, JavaScript, Django, SQL, and Bootstrap. Topics include database design, scalability, security, and user experience.

Review site Slack app Shopping cart

A certificate of completion

Udacity's Full-Stack Web Development NanodegreeAn icon for an external link

Learn to build database-backed APIs and web applications with Python, Flask, and JavaScript. Database design, manage user authentication and access control with Docker and Kubernetes.

Music venue app API design Roles-based access control

An image of a radial gradient pattern

They said it, not me..

“It is without hesitation that I give Joel my highest praise”

“Joel performed well beyond my high expectations. He was self motivated, and was quickly able to set his own goals and timelines for his work. He did excellent independent research ... He incorporated both large and small pieces of innovations to meet the demanding project requirements. Joel maintained a high level of focus in his day to day work. He is not easily distracted from the task at hand. I cannot remember him ever missing a deadline for a deliverable. Joel worked very well with the other engineers in the group. He works well under pressure and is able to bring his ideas in team discussions in a positive, non-confrontational manner. He delivers across all possible considerations: productivity, initiative, responsiveness , and professionalism. His friendly positive personality is a great asset to any team environment.”

A portrait photo of Tom Grutkowski

Thomas Grutkowski

Principal Engineer at Intel

“We still talk about some of those early days where you really saved our bacon”

A portrait photo of Thomas Reilly

Thomas Reilly

CEO at Access Sensor Technologies

“Managers and technical leads knew they could trust him”

“Joel did well working independently, even on difficult problems ... His work was of the highest quality. Throughout his time on my team, Joel showed a knack for learning new subjects quickly, he showed excellent communication/teamwork, and he reliably met his schedules. I'd be happy to have Joel return to my team!”

A portrait photo of Paul Thayer

Paul Thayer

Director of Engineering at Intel

“Passionate, precise and creative”

“Joel understands complex matters even when outside of his direct area of expertise. He is quickly able to learn new software tools, which enables him to spend less time with the mechanics of the job and more time doing the actual work before him. Joel's work ethic and attitude are an asset to any team.”

A portrait photo of Mike Barber

Mike Barber

Principal Engineer at Edge Scientific

© Copyright 2019– Joel Wigton, All Rights Reserved.