title	conference	date
Choose your own adventure in agentic design patterns	JNation 2026	2026-05-26
Shows concrete patterns and runnable examples: a Deep Research pipeline wired to the Gemini interactions API that chains topic-explorer → Deep Research agent →… Talk on
Panel Software Engineering in the age of AI	JNation 2026	2026-05-26
A live panel surveys agent tooling and real projects: hands‑on use of LangChain4J and ADK for Java, greenfield work produces usable code quickly while legacy… Talk on
Standards and AI Agents: an Overview of MCP, A2A, ADK and More	Devoxx France 2026	2026-04-22
Overview of IA agent standards and frameworks: explains protocols MCP, A2A, ACP and frameworks ADK, Arc, Quarkus, LangChain4j. Shows how to build an agent… Talk in French on
Agentic Design Patterns Where You Are the Hero	Devoxx France 2026	2026-04-22
Guillaume Laforge (Google) presents concrete agent design patterns for building multi-agent systems using Java tooling (LangChain4j, ADK for Java). He explains… Talk in French on
Les Cast Codeurs 2026: No Headsets, No Screens, Just Joy	Devoxx France 2026	2026-04-22
A live in-person wrap-up session for Devoxx France 2026 where the Cast Codeurs hosts (Arnaud Héritier, Guillaume Laforge, Emmanuel Bernard, Antonio Goncalves)… Talk in French on
Under the Hood of LLMs — all those questions you never dared ask about them	DevFest Toulouse 2025	2025-11-13
Describes why large language models are trained on enormous corpora (about 13 trillion tokens) and why they use subword tokenization rather than characters or… Talk in French on
Intelligent Agents, the New Frontier of LLMs	DevFest Nantes 2025	2025-10-16
Defines what makes a system an “agent” versus a plain LLM, outlines LLM limitations, and demonstrates building concrete agents in Java using LangChain4j and… Talk in French on
Things you never dared to ask about LLMs	Voxxed Days Zürich 2025	2025-03-25
Explains why LLMs work on tokens not letters, citing tokenizers like BPE and sentencepiece tokenizer, vocabulary sizes (Gemini ~260,000 tokens, GPT‑4 ~128k)… Talk on
RAG: from dumb implementation to serious results	Jfokus 2025	2025-02-03
Shows concrete fixes and code using LangChain4j and Gemini/Vertex AI: embedding sentences but returning paragraph context with a sliding-window sentence… Talk on
Gemini, Google's Large Language Model	DevFest Toulouse 2024	2024-11-07
Introduction to Google/DeepMind’s Gemini family of LLMs (Nano to Ultra and the open Gemma variant) and how to use Gemini via the Google Cloud API in Java apps… Talk in French on
Panel Discussion: LangChain4j, a year later.	Devoxx Belgium 2024	2024-10-07
LangChain4j now has over 150 contributors and ships concrete features: Gemini multimodal support with a 2 million token context and PDF/audio/video handling… Talk on
RAG: from dumb implementation to serious results	Devoxx Belgium 2024	2024-10-07
Practical RAG with LangChain4j and Gemini shows concrete fixes: implement sliding-window and recursive chunking, generate hypothetical questions or contextual… Talk on
From naive to advanced RAG: the complete guide	Devoxx Belgium 2024	2024-10-07
Shows a concrete RAG pipeline built with LangChain4j and production deployments on Astra/Cassandra using a G‑Vector index; demonstrates specific fixes… Talk on
Gemini, Google's Large Language Model	Voxxed Days Brussels 2024	2024-05-21
Gemini is a multimodal LLM with sizes Nano, Pro, Ultra and a Flash flavor that streams responses fast and supports a 1 million token context (examples: one… Talk on
Gemini, Google's Large Language Model	GeeCON 2024	2024-05-15
Gemini is natively multimodal and ships as Nano, Pro and Ultra with a new Gemini 15 Flash variant that aims for faster, cheaper responses. It accepts up to a 1… Talk on
Generative AI in Practice: Concrete LLM Use Cases in Java with the PaLM API	JCON WORLD ONLINE 2023	2023-11-20
Shows how Java calls Google Cloud’s PaLM API (the model trained on ~3.6 trillion tokens, with examples mentioning ~340B parameters) to do real tasks: a… Talk on
Generative AI in Practice: Concrete Use Cases for an LLM in Java	DevFest Toulouse 2023	2023-11-16
Shows how to use Large Language Models from Java without Python, using Google's PaLM models via the Vertex AI API. Demonstrates practical Java examples for… Talk in French on
Skyrocketing Micronaut microservices into Google Cloud	Cloud Builders: Java Conf 2023	2023-03-30
Shows how to deploy Micronaut apps as functions, apps or containers using Micronaut Launch templates and direct GitHub pushes; demos include a Pub/Sub… Talk on
Monitoring Your 3D Prints with an Old Smartphone, from WebRTC…	BDX I/O 2022	2022-12-02
A developer repurposed an old smartphone as a webcam to monitor 3D prints remotely and avoid walking up and down stairs. The setup streams video using WebRTC… Talk in French on
Choreography vs Orchestration in serverless microservices	code.talks 2022	2022-09-15
Compares three concrete patterns and shows working demos: Google Cloud Workflows orchestrates Cloud Run, Cloud Functions and external APIs (SendGrid via Secret… Talk on
Choreography vs Orchestration in Serverless Microservices	Voxxed Days Luxembourg 2022	2022-06-21
Compares orchestration (a central coordinator controlling interactions) versus choreography (services working independently and communicating via events) for… Talk in French on
Asynchronous operations in UI using Workflows and Firestore	Google I/O 2022	2022-05-11
Client JavaScript calls a Cloud Function that uses the Workflows Executions API to start an execution which orchestrates services (payments, Document AI… Talk on
Adding a search bar to your application from A to Z	Devoxx France 2022	2022-04-20
Shows how to add a search bar to a photo-sharing application by indexing image metadata stored in Google Cloud Firestore and enabling rich searches beyond… Talk in French on
Choreography vs Orchestration in serverless microservices	NDC Oslo 2021	2021-11-29
Compares Pub/Sub event choreography versus centralized Cloud Workflows orchestration by rebuilding a photo‑sharing app: original pipeline uses Cloud Storage… Talk on
Choreography vs Orchestration in serverless microservices	JCON-ONLINE 2021	2021-10-05
Photo-sharing app moves from messy event-driven wiring (Pub/Sub/Eventarc plus Cloud Functions, Cloud Run, Firestore, Vision API) to a central orchestrator… Talk on
The Cast Codeurs at Devoxx France 2021: we wanted to see people again	Devoxx France 2021	2021-09-29
A live recording of the French podcast Les Cast Codeurs during Devoxx France 2021, featuring Emmanuel Bernard, Antonio Goncalves, Arnaud Héritier, Guillaume… Talk in French on
Artificial intelligence to the rescue of accessibility	Devoxx France 2021	2021-09-29
Demonstrates using Google Cloud tools to improve accessibility: Video Intelligence extracts scene labels and timestamps, Speech-to-Text transcribes audio in… Talk in French on
Choreography vs Orchestration in serverless microservices	Devoxx France 2021	2021-09-29
Compares event-driven choreography with a central orchestrator by reimplementing a photo‑sharing demo: the original Pub/Sub + Cloud Functions + Cloud Storage +… Talk in French on
What's next for the Groovy web console?	ApacheCon@Home 2021	2021-09-21
A redesigned Groovy web console v2 runs on Google Cloud with static front end on App Engine and a pool of Cloud Functions per Groovy version (Java 11)… Talk on
Implementing a Webhook, Not So Simple!	DevFest du Bout du Monde 2020	2020-02-28
An introduction to Webhooks followed by hands-on work: first implementing a callback endpoint to receive event notifications, then building a server-side… Talk in French on
Implementing a server-side webhook, not so simple!	BDX I/O 2019	2019-11-15
The talk explains how to implement server-side webhooks: it first introduces webhooks and building a callback endpoint to receive notifications, then covers… Talk in French on
Cloud Run, serverless containers in action	Voxxed Days Microservices 2019	2019-10-21
Cloud Run deploys containers to production in seconds, runs managed on Google Cloud or on GKE via Knative, and scales 1 to 0 with billing per 100ms and a… Talk on
Implementing a server-side webhook, not so simple	Orléans Tech Conf 2019	2019-09-17
Explains webhooks from both sides: after a brief concept intro it shows how to implement a server callback to receive events and then how to implement a… Talk in French on
What's new in Google Cloud serverless	DevFest du bout du monde 2019	2019-02-22
A concrete photo‑sharing app built using App Engine, Cloud Functions, Google Cloud Storage and Cloud Datastore that auto‑labels images with Cloud Vision and… Talk in French on
What's new in Google Cloud Serverless	DevFest Paris 2019	2019-02-08
A demo of a serverless image‑sharing app using Google Cloud: a Java App Engine frontend, a Go admin module, photos in Cloud Storage, metadata in Datastore… Talk in French on
Machine Learning APIs, from Training [...]	DevFest Toulouse 2018	2018-11-08
Shows concrete demos of Google Cloud Machine Learning APIs: Vision API for label, adult-content and dominant-color detection from images; Speech-to-Text… Talk in French on
New serverless solutions on Google Cloud for functions, apps and containers	Voxxed Days Microservices 2018	2018-10-29
New Google Cloud serverless features include Cloud Functions GA with Node.js and Python 3.7, modern App Engine runtimes running in a gVisor sandbox, and the… Talk on
Google Cloud's new serverless features	DevFest Nantes 2018	2018-10-18
A live demo builds a photo‑sharing backend that uploads images with App Engine (Java), stores blobs in Cloud Storage, uses the Vision API to analyze images… Talk in French on
Chatbots, shall we shift into second gear?	Devfest Lille 2018	2018-06-21
Explains building chatbots using Dialogflow for intent and entity extraction, extending them with Actions on Google, and implementing account linking for… Talk in French on
Get silly with serverless	Devoxx Belgium 2017	2017-11-06
Shows how Google Cloud Functions (Node.js) glue services: upload an image to Cloud Storage, a function invokes Cloud Vision for labels and creates a thumbnail… Talk on
Ok Google, is there any presentation about ChatBots	DevFest Nantes 2017	2017-10-19
Demonstrates building a voice-enabled chatbot/assistant that can answer conference-related queries (e.g., find sessions on Machine Learning or Docker, look up… Talk in French on
IT Holy Wars	Voxxed Days Singapore 2017	2017-06-02
A brisk survey of developer polarizations that names concrete tradeoffs and tools: tabs versus spaces, VI versus Emacs, Gradle versus Maven. Covers dynamic vs… Talk on
Machine Intelligence at Google Scale	Voxxed Days Singapore 2017	2017-06-02
Overview of available Google Cloud ML tools and concrete outcomes: ready-made APIs like Cloud Vision API, Speech, Natural Language, Translate (now neural MT)… Talk on
What can you learn from thousands of source files in Github?	Devoxx US 2017	2017-03-21
Uses GitHub’s BigQuery dataset (3 TB, ~2.8M repos, 145M commits, 163M latest-file revisions) and SQL queries with regex-extract and quantiles to analyze… Talk on
Cloud Native Enterprise	SpringOne2GX 2015	2015-09-14
Recorded at SpringOne2GX 2015. Speakers: Guillaume LaForge, Graeme Rocher, Josh Long, Dr. David Syer, Mark Fisher, Scott Frederick Slides… Talk
Groovy, in the light of Java 8	SpringOne2GX 2014	2014-09-08
Groovy claims that Java 8 is complementary, not redundant: Groovy closures coerce to functional interfaces (and even abstract classes) so existing code can… Talk on
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