For companies, universities, schools & individuals
Talks, training and consulting on IT topics such as AI, IAM, IT security and cryptography.
Solution Architect atAtruvia AG.
Overview
About me
What drives me: learning new things, understanding how they fit together, checking and building them myself, and passing the knowledge on.
The full CV is on LinkedIn.
Subject degrees
Teaching degrees
Actually building it
Three complete degree programmes side by side: computer science and mathematics for the subject matter, teaching for how to convey it. On top of that, the day job as a Solution Architect in the financial industry — which is why the talks and workshops stay close to what actually happens.
Speaking & consulting
I speak and advise at conferences, universities and companies on the topics below.
How it works, where it does and does not belong, AI integration architectures (A2A, MCP, REST) and scaling it without the bill running away (AI gateways, sandboxes, filtering, and the rest).
Getting modern authentication, authorization and zero trust right in hybrid cloud environments.
The textbook against everyday practice. How to find the right trade-off between security, cost, usability and maintainability — from inside the financial industry.
What actually scales, what only costs, how hybrid setups play out, and which architecture decisions you can barely correct later.
From fully homomorphic encryption (computing on encrypted data) to post-quantum cryptography — as a mathematical deep dive or as a pragmatic migration roadmap.
Consulting on these topics is of course also possible — whether that is design work, an architecture review, or hands-on implementation.
Your topic is not listed? Ask me anyway.
Education
Workshops, talks and professional training – for schools, universities, companies and individuals.
Workshops for teachers, parents and students
See the school programmein GermanTraining shaped around a role or an organisation, and consulting on request
For companies & universitiesAdult education, one to one or in small groups.
For individualsA look at the school workshopspages in German
Pädagogischer Tag
Ganztägige Fortbildung für das Kollegium: technische Grundlagen von KI, Rechtsrahmen (DSGVO, EU AI Act), konkrete Unterrichtsanwendungen und Erarbeitung schuleigener Leitlinien.
Schüler-Workshop
Schüler:innen lernen, wie generative KI wirklich funktioniert, was sie nicht kann, und welche Regeln sie sich selbst geben wollen – mit Live-Demos und interaktiven Übungen.
+5more school workshopsParents' evenings, cyber security, cyber bullying, clubs on vibe coding and touch typing — with audiences, durations and prices.See allThe school programme is written for the German school system and is only available in German.
Publications
Research on cryptography and AI – as a book with Springer and as peer-reviewed papers.
A thorough introduction to the McEliece cryptosystem — from the mathematical foundations through to a concrete implementation.
Click a preview to open the chapter overview, the sample pages or the bibliography as a PDF.
A survey paper on how FHE makes computation on encrypted data possible — including the talk and the slides.
A simple test environment for studying how AI can discover scientific relationships on its own – published in Machine Learning (Springer).
Blog
Thoughts on what occupies me – IT security, AI, technology in education and plenty more. For professionals, teachers, parents, students and the curious.
Some blog posts are written in German only.
Contact
A talk, a workshop, working together, or simply a question – a short message is enough. I reply within 48 hours on working days.
Press & speaker profile
Short bio, photo and speaker profile – the essentials in one place.
Felix Paul is a computer scientist and mathematician focusing on IT security, IAM, AI and cloud. His day job is Solution Architect at Atruvia AG, the IT provider of the German cooperative banks; alongside that he is very active as a freelancer. As a keynote speaker he appears at conferences, universities and companies. He also gives talks at schools, sells his own software products, and published a book on post-quantum cryptography with Springer.
