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.
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
Developer advocacy lives where engineering meets communication. I've spent years on both sides.
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.
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.
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.
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.
Engineering Intern
ConTejas
Sales Associate
Smartech Berlin (KaDeWe)
Spokesperson & Ambassador
Special Olympics
Engineering Support
SPEMA Kirchmöser GmbH
Built · 2026
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 →Live · 2026
A voice assistant inspired by Iron Man's J.A.R.V.I.S. — you talk to it and it talks back. A reasoning brain with persistent memory, live web search, and tools for weather, news, calendar, music and more, plus a laptop coding agent that writes and runs code.
Try the live demo →Live · 2026
Ask a question in plain English and get the exact moments sermons answered it — preacher, date, the passage itself, and a YouTube link that jumps to the precise second. OpenAI embeddings, sentence-aligned chunking, and a LanceDB vector store, built from parts to learn AI-native search and RAG from the ground up.
Try it live → View on GitHub →Live · 2026
My assistant once claimed it did something it hadn't — so I built a benchmark to find out which models fabricate their actions. 270 runs across 9 free models with mock tools: what each one calls versus what it claims. A live leaderboard, a verbatim "lie gallery," and every transcript published — reproducible in one command.
See who lies → View on GitHub →Live · 2026
Point your phone's camera and an AI heads-up display locks targeting brackets onto what it sees while Jarvis narrates in his own voice — the in-helmet view, in a web page. Live camera, computer vision, and hand-gesture control. The Mark I; the glasses are next.
Suit up →In progress · 2026
A simple command-line calculator in Python: enter two numbers and an operation (+, −, ×, ÷) and it returns the result. One of my hands-on projects while learning to read and write code — drilling the fundamentals like user input, conditionals, and clean control flow.
Speaker — “Headcar: build your way out of any hole”
GitNation Meetup · sponsored by Sentry
B.Eng. Applied Mechatronics Engineering
SRH University of Applied Sciences
High School Diploma
Abu Dhabi Grammar School
Engineering & AI
Communication & Content
Languages
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