An American in Madrid

A curious mind.
A practical streak.

Hi, I’m Kevin. I work across business, engineering and borders. Along the way, I build useful things, explore new technology and follow the occasional rabbit hole.

Illustrated pencil portrait of Kevin SullivanKevin Sullivan / Madrid, Spain
Based in Madrid, Spain   /   At home in English & SpanishA few things about me

Engineering roots.
Interests that don’t fit in one box.

I’m an American living in Madrid, equally at home in English and Spanish. French is also part of my language repertoire. I studied chemical engineering at Purdue, worked on international engineering projects, and moved into commercial roles connecting North America and Spain.

Today, I’m North America Commercial Manager at TuLotero, where I’ve helped take the business from no U.S. presence to operations in multiple states. The role brings together technical and commercial knowledge: understanding how the technology works, working through regulations, building relationships and turning a long-term plan into something that works.

Having lived outside the United States for nearly two decades, I feel at home in international and multicultural environments. I enjoy working with people from different backgrounds, adapting to local contexts and finding common ground across cultures.

I also like making things for myself: apps, datasets and tools that solve everyday problems. Outside work, aviation, travel and a good trivia question tend to catch my attention.

Madrid, SpainEnglish & Spanish / FrenchPurdue engineering

Curiosity, put to work.

A couple of personal projects, and a look back at where I started.

Forkast

Android · Personal project

A personal app for tracking food, calories and weight, and making the daily picture easier to follow.

Flip English

Android · Language learning

English practice for Spanish speakers. Personal vocabulary, flashcards and pronunciation, one word at a time.

Earlier explorations in data

Transportation datasets, border crossings and visualizations from my first steps into coding.

A few other
rabbit holes.

Aviation & travel

The places, the journeys and, quite often, the aircraft getting us there.

Useful technology

Small tools, new possibilities and finding out what I can make with them.

Trivia & culture

Literature, history and the satisfying moment when a clue finally clicks.

Good conversations
start with hello.

Have an interesting project, a professional opportunity or something you think I'd enjoy? I'd be happy to hear from you.

Send Kevin a message

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Personal project / Android

Forkast

Forkast grew out of a practical need: keeping track of calories and weight in one place. It’s a personal Android project that brings daily logging and longer-term patterns together.

I use AI coding tools to help develop and refine the app, working through the details of food entry, widgets and backups along the way.

A personal project, rather than a public app release. The homepage graphic is an illustration of the idea.

Personal project / Language learning

Flip English

A personal Android app designed to make English vocabulary practice approachable for a Spanish speaker.

It brings together a personal vocabulary list, flashcard practice and spoken English pronunciation. The project is built with Kotlin and Jetpack Compose, with AI coding assistance.

A privately shared project. The homepage cards are an illustration of the learning concept.