Hey! I am
Thomas,

Entrepreneur, Engineer, CTO

& Problem solver, Product builder, Team manager ...

CTO at Positive Group.Co-founder of Jooxter. Founder of Pixelixe.I lead engineering teams and build products across AI, SaaS, software and hardware.

Thomas Thelliez, CTO and serial entrepreneur
✦Thomas THELLIEZ© THOMAS
Product
builder
Positivegroup+▧ pixelixejooxter®FoodTech
Founders.

The best way to predict the future is to invent it.

- Alan Kay

Technology is indistinguishable from magic

About me

This website showcases mostly side projects related to hardware, software, AI and entrepreneurial experiences.
For my full professional résumé, please visit my LinkedIn profile.

Entrepreneurship

In 2013, I co-founded Jooxter, a company specializing in optimizing workspace occupancy. We built a SaaS platform (mobile and web) that analyzes the occupancy rates of large buildings using hardware sensors, big data, and machine learning (AI). After two years of bootstrapping, we raised 1 million euros to expand our sales efforts in Europe (Luxembourg, Belgium, the UK, Italy, etc.).

Find out more in the articles below (French).

Les Echos logo Challenges logo

Open source project creator

In 2007, I created the open-source project “KontrolPack,” which gathered over 700,000 downloads and was integrated into Ubuntu, Gentoo, and Arch Linux. I managed contributors from all over the world on a weekly basis. Read the AddictiveTips or Ghacks articles to learn more.

In 2009, I created a second open-source project called “FeelHome.” which quickly gained traction, reaching thousands of weekly downloads thanks to growth-hacking techniques and coverage from tech media outlets such as LifeHacker and MacGeneration.

Lifehacker logo AddictiveTips logo

Freelancer

In 2022, I helped companies to migrate or build their IT or mobile based architecture as a software architect, and digital transformation expert.

Today

I am currently the Chief Technology Officer at Positive group, a leading European marTech company. I manage about a hundred people across on-premise infrastructure, AI, and web development teams.

Free time

Electronics and robotics especially Cyber-Physical System (CPS) (microcontrollers — PID, sensor and actuator control, computer vision, on-chip AI using Nvidia Jetson and other boards).

Thomas Thelliez at EuraTechnologies

Technologies I enjoy working with ?

I have worked on convolutional neural networks (deep learning), LSTM models, LLM fine-tuning, and more recently, agentic assistants. I also served as Head of Data for a large retail organization with millions of customers worldwide, managing Data and AI teams internationally for several years.

NVIDIA Jetson board for electronics and robotics

Key skills for making successful projects!

Communication

Clear and consistent communication helps prevent misunderstandings, reduce risks, and foster collaboration and teamwork. It enables project teams to work together more effectively and deliver better results.

Management

Effective management ensures that a project is delivered on time, within budget, and to the required quality standards by providing leadership, guidance, and support to the project team.

Vision

A clear and compelling vision is crucial to ensuring that everyone involved in a project understands its purpose, goals, and potential impact and feels motivated to work toward achieving them.

Expertise snapshot

I connect three practical domains: SaaS product engineering, AI and automation, and cyber-physical systems. This matters because modern products increasingly combine software architecture, AI workflows, APIs, data, growth loops and real-world operational constraints.

SaaS and product

Founder of Pixelixe, a profitable visual automation platform launched in 2018 and grown primarily through SEO, APIs and product-led utility.

Meet my last
side project

PIXELIXE Studio in action

Pixelixe Studio interface for branded visual production

Companies & side projects timeline

Q1 / 2007

KontrolPack

I began developing KontrolPack in my spare time as a student. The project grew rapidly, and I found myself managing contributors from Poland, Spain, and the US. It became a major success and was integrated into several popular Linux distributions.

Q2 / 2009

FeelHome

I enjoyed and learned so much from building KontrolPack that I wanted to repeat the experience by launching a new product. FeelHome allowed me to strengthen my skills in product development and team management. I was able to launch this second project twice as fast as the first one. Experience is key.

S2 / 2013

Jooxter

After successfully launching two side projects, it was time to start my own venture (a dream of mine). The challenge was to find the right product-market fit and a business model in a niche project.

T1 / 2018

Pixelixe

In 2018, I launched Pixelixe, a creative automation platform, as a bootstrapped side project. I primarily dedicated my evenings, weekends, and holidays to working on this venture.

T2 / 2022

FoodTech Founders

In 2023, I founded a startup studio focusing on FoodTech and Impact with 2 other partners. We already launched amazing startups such as Choukran & Beans. More projects to come soon.

Synthwave Music

Dynamic and dreamy electronic Synthwave music I created.

SYNTHWAVE

Synthwave Music

Vol. 1 - Sweet Insomnia
01
Vol. 1 - Temporal Distorsion
02
Vol. 1 - Parallel Universe
03

Let's get in touch