Jonathan Estephan

Mechatronics Engineering Student, Builder & AI Enthusiast

I build at the intersection of hardware, software, and AI, and I love turning complex technical ideas into content people actually enjoy. I'm looking for a Developer Advocate role where I get to do exactly that.

Berlin, Germany · Open to remote · Seeking Developer Advocacy in AI

estephanjonathan@gmail.com · linkedin.com/in/jonathan-estephan · x.com/tightestwinter · Berlin, Germany · Open to remote

Get in touch Why me

What I bring

Developer advocacy lives where engineering meets communication. I've spent years on both sides.

Build it

A hands-on engineer fluent in Python, C++, and microcontrollers, building real hardware and AI projects. That foundation is what makes example projects and demos credible.

Explain it

I turn complex concepts into clear, simple stories. I've done it professionally, translating between engineers and beginners, and it's the part of the work I enjoy most.

Share it

Native English and Arabic, fluent German, with a background in public speaking, media, and sales. I know how to make an audience genuinely care about an idea.

About

I'm finishing my Bachelor's in Mechatronics Engineering in Berlin, currently near the top of my class. I'm happiest where hardware, software, and AI meet, the point where code starts moving things in the real world.

What I enjoy most is the part after the build: explaining it. I've spent years translating between technical and non-technical people, from bridging engineers and new trainees on the shop floor, to being the public spokesperson for a Special Olympics team, to becoming the top-selling associate across Smartech's European stores by making technology genuinely click for people.

Right now I'm going deep on AI-native search, vector databases, RAG, and open-source AI, and looking for ways to turn what I learn into clear writing, sharp visuals, and example projects. I don't claim to know everything yet, and that's exactly why I want to grow as a developer advocate: building in public and learning out loud.

Experience

Engineering Intern

ConTejas

May – Jul 2026 · Internship

Built headcar, a mind-controlled 4WD rover that reads Muse 2 EEG brain activity and drives the motors through an ESP32 — the project featured below.
Developed the full hardware, firmware, and EEG-to-motor control pipeline end to end.

Sales Associate

Smartech Berlin (KaDeWe)

Oct 2024 – Present · Berlin, Germany

#1 seller across all of Smartech's European stores in Q4 2025, and again in March 2025.
Top 5 sales associate for Q4 2024 and Q1 2025.
Secured a collaboration between Smartech and DJI.
Translated complex technical products into clear, persuasive pitches for a broad retail audience.

Spokesperson & Ambassador

Special Olympics

2019 · Abu Dhabi, UAE

Represented the team across all media relations and public communication.
Selected as the senior to represent both the school and the Special Olympics team.

Engineering Support

SPEMA Kirchmöser GmbH

2023 · Brandenburg, Germany

Translated between the engineering team and new trainees.
Managed internal communication within the team.

Projects

In progress · 2026

headcar — Mind-Controlled 4WD Rover

A four-wheel-drive rover you steer with your mind: it reads Muse 2 EEG brain activity and drives the motors through an ESP32, bridging neuroscience and mechatronics. Built end to end, from the firmware to the EEG-to-motor control pipeline.

View on GitHub →