Léon Àmi Wagner

About Me

Hi, I'm Léon 👋

Mainz · Origin
Mainz · Origin
Greenpeace Mainz · climate protest
Greenpeace Mainz · climate protest

Mainz — where it started

Born and raised in Mainz, I first studied Economics — I wanted to understand how the systems around us work. That urge was never just academic: with Greenpeace I joined the protests for climate protection and served as the local group's contact person for biodiversity. Two semesters in, it was clear that what actually pulled me in were the tools behind the systems: the models, the data, the code. So I switched tracks.

HTW Berlin · Wilhelminenhof campus
HTW Berlin · Wilhelminenhof campus
Berlin · HTW · first builds
Berlin · HTW · first builds

Berlin — learning by building

At HTW Berlin I studied Computational Science and Engineering — half computer science, half classic engineering. When the pandemic moved everything online, I kept building anyway: a self-built vacuum robot, a voice-controlled model factory, and my first job as a web developer in the university's executive office, helping introduce a new campus management system.

Berlin · Fraunhofer IPK
Berlin · Fraunhofer IPK

Fraunhofer — two years of shipping

In my fifth semester I joined Fraunhofer IPK as a working student and stayed for over two years: full-stack work on the 'Process Assistant' (MERN), the integration of a RAG chatbot, and a caching layer that cut backend runtime by 60–70%. My bachelor thesis became the first prototype of the EU Digital Product Passport for traction batteries — demonstrated end-to-end with a Lego value chain.

Berlin · Humboldt · NLP
Berlin · Humboldt · NLP

Humboldt — deeper into AI

After the bachelor's it was clear where this was going: a master's in Computer Science at Humboldt University, focused on NLP. That's when the reading-papers-at-2-a.m. phase started — not for a grade, just to understand how these models actually work.

Barcelona · Erasmus 2025
Barcelona · Erasmus 2025

Barcelona — the Erasmus semester

A semester at UPC in Barcelona: Advanced NLP, multi-agent system design, machine learning — and a city that makes it easy to think about something other than transformers once in a while.

Vienna · AIT · today
Vienna · AIT · today

Vienna — today

My master's thesis brought me to the AI-Taskforce at the AIT Austrian Institute of Technology in Vienna. I build production AI systems there — among them an enterprise RAG chatbot selected for company-wide rollout — and research continual learning in enterprise LLMs. The full record lives on the homepage; the demos are one click away.

Off the Clock

the human behind the engineer

United States of AmericaNorwayFranceIndiaSwedenPolandAustriaGermanySwitzerlandNetherlandsPortugalSpainSri LankaDenmarkUnited KingdomFinlandSlovakiaCzechiaVienna
Been there18 countries · 3 continents

When I'm not shipping models, I'm somewhere on this map — or three moves from checkmate on a train back to Vienna.

How I recharge

Board Games
Video Games
Going for a walk
Deep Talks
Reading
Ping Pong / Table Tennis
Badminton
Running
Fitness
Chess♜ 1335 · ♞ 1558

On rotation

On the shelf

Currently reading2

all on Goodreads
Im Grunde gut. Eine neue Geschichte der Menschheit by Rutger BregmanAmi regresa (Ami, #2) by Enrique BarriosAmi, el niño de las estrellas (Ami, #1) by Enrique BarriosDas Kind in dir muss Heimat finden. Der Schlüssel zur Lösung (fast) aller Probleme by Stefanie StahlThinking, Fast and Slow by Daniel KahnemanRumo & His Miraculous Adventures (Zamonia, #3) by Walter MoersWetten, dass Sie Mathe können by Thomas RießingerBrave New World by Aldous HuxleyZero to One: Notes on Startups, or How to Build the Future by Peter ThielHow to Win Friends & Influence People by Dale CarnegieBlood of Elves (The Witcher, #1) by Andrzej SapkowskiSword of Destiny (The Witcher, #0.7) by Andrzej SapkowskiThe Time of Contempt (The Witcher, #2) by Andrzej SapkowskiBaptism of Fire (The Witcher, #3) by Andrzej SapkowskiThe Tower of the Swallow (The Witcher, #4) by Andrzej SapkowskiLady of the Lake (The Witcher, #5) by Andrzej SapkowskiSapiens: A Brief History of Humankind by Yuval Noah HarariSummary Of 21 Lessons for the 21st Century By Yuval Noah Harari by OneHour ReadsMass Effect: Revelation (Mass Effect, #1) by Drew KarpyshynMindset: The New Psychology of Success by Carol S. DweckMacbeth: Moment by Moment by William ShakespeareKrabat by Otfried PreußlerDer letzte Mohikaner by James Fenimore CooperHarry Potter and the Order of the Phoenix (Harry Potter, #5) by J.K. RowlingHarry Potter and the Philosopher's Stone (Harry Potter, #1) by J.K. RowlingHarry Potter and the Deathly Hallows (Harry Potter, #7) by J.K. RowlingHarry Potter and the Half-Blood Prince (Harry Potter, #6) by J.K. RowlingHarry Potter and the Chamber of Secrets (Harry Potter, #2) by J.K. RowlingHarry Potter and the Goblet of Fire (Harry Potter, #4) by J.K. RowlingHarry Potter and the Prisoner of Azkaban (Harry Potter, #3) by J.K. RowlingAtomic Habits: An Easy & Proven Way to Build Good Habits & Break Bad Ones by James ClearThe 13½ Lives of Captain Bluebear (Zamonia, #1) by Walter MoersSouverän investieren mit Indexfonds und ETFs. Wie Privatanleger das Spiel gegen die Finanzbranche gewinnen by Gerd KommerSouverän investieren für Einsteiger. Wie Sie mit ETFs ein Vermögen bilden by Gerd KommerLiebe (German Edition) by Richard David Precht (2012-01-17) by Richard David PrechtWer bin ich – und wenn ja, wie viele? by Richard David PrechtSecond Foundation (Foundation, #3) by Isaac AsimovFoundation and Empire (Foundation, #2) by Isaac AsimovFoundation (Foundation, #1) by Isaac AsimovThe 7 Habits of Highly Effective People: Powerful Lessons in Personal Change by Stephen R. Covey

Want to read16

all on Goodreads
Ami 3: Civilizaciones Internas (Ami, #3) by Enrique BarriosDer Mythos Schönheit by Naomi WolfThe Alchemist by Paulo CoelhoThe Help by Kathryn StockettThe Diary of a Young Girl by Anne FrankThe Stand by Stephen  KingTo Kill a Mockingbird by Harper LeePride and Prejudice by Jane AustenThe Hunger Games (The Hunger Games, #1) by Suzanne CollinsDas Kind in mir will achtsam morden (Achtsam morden #2) by Karsten DusseNiemand kann sagen, er hätte es nicht gewusst: Die ungeheuerlichen Pläne der AfD by Marcus BensmannSuperintelligence: Paths, Dangers, Strategies by Nick BostromDer Name des Windes (Die Königsmörder-Chronik, #1) by Patrick RothfussAchtsam morden am Rande der Welt (Achtsam morden #3) by Karsten DusseAber meiner Tante hat's geholfen: Wie wir Scheinargumente, unwissenschaftlichen Unsinn und Pseudoexperten entlarven by Maximilian DoeckelThe Demon-Haunted World: Science as a Candle in the Dark by Carl Sagan