INTERACTIVE COURSES

Interactive courses

A lifelong learner, I now lean on AI to draft courses on the broad range of topics I explore: a way to anchor each concept and pass it along.

Architecture

Domain-Driven Design

intermediate 4 modules 85 min

Service architecture models: integration, autonomy and federation

How should several services of the same product, suite or ecosystem organize the concepts they share (customer, organization, shop, project)? This general architecture course compares the three big models on the market: the integrated monolith, autonomous services and the federated model. It connects them to the tools of Domain-Driven Design (bounded contexts, shared kernel, published language, anticorruption layer) and ends with a decision grid and migration trajectories. Applicable to software suites, ERPs, cloud platforms and internal microservice ecosystems alike.
- architecture
- services
- platform
- ddd
- bounded-contexts
- microservices
- federation

Messaging and distributed systems

intermediate 6 modules 130 min

Talking with messages: reliability in distributed systems

How do several services of the same system talk to each other without falling together? This architecture course starts from the guarantees, not the technologies: it first explains what a message promises (and does not), then shows how RabbitMQ and Kafka, its two archetypes, keep those promises. Coupling, delivery semantics, ordering and idempotence, the transactional outbox, poison messages, backpressure, sagas: each chapter closes a reliability gap opened by the previous one. The examples are real (Hexeract, the Rust messaging framework) and compared against a second .NET lens (Wolverine). Running thread: placing an e-commerce order, hardened chapter after chapter.
- architecture
- messaging
- distributed-systems
- rabbitmq
- kafka
- reliability
- hexeract

Math

Foundations

intro 3 modules 150 min

Logic, sets and proofs

The first mathematics course: the language of rigour. Propositional logic, quantifiers, set theory, proof methods and induction. The toolbox that makes every proof possible, accessible to a reader with a scientific high school background.
- logic
- sets
- proofs
- induction
- mathematics

AI

Neural networks

Vector search

intermediate 6 modules 146 min

Searching by meaning: vector databases and retrieval

An accessible university-level course on semantic search. We start from the limit of keyword search, which ignores meaning, and rebuild search by meaning: represent a text as a vector, measure proximity, index millions of vectors without comparing them all, make the index durable, marry it with the lexical world, and finally feed a language model. From the geometry of embeddings to RAG.
- vector-search
- embeddings
- nearest-neighbors
- hnsw
- hybrid-search
- rag

Security

Applied cryptography

intermediate 4 modules 80 min

Authenticated encryption: why encryption alone is never enough

Encrypting a message makes it unreadable, not tamper-proof. This applied cryptography course builds intuition for authenticated encryption: confidentiality versus integrity, AEAD and its tag, the pitfalls of nonces, associated data and domain separation, versioned formats, and the art of designing a failure that leaks nothing. Four chapters, two interactive components, real-world attacks at every step. No programming language required.
- cryptography
- aead
- nonce
- integrity
- security