

What we’re about
Whether you want to get started with AI and the latest technology or you're building your career or the next great idea, Microsoft Reactor connects you with the developers and startups that share your goals.
Microsoft Reactors are centers for free technical learning and sharing, where developers and startup professionals can connect with the local community and build new skills to drive innovation.
Virtual events are running around the clock so join us anytime, anywhere!
Are you a Meetup organizer? Contact us to use our space: ReactorLDN@Microsoft.com
Learn more at: https://aka.ms/developer.microsoft/reactor
Many of our virtual workshops are recorded and then uploaded to our YouTube channel: Microsoft Reactor - YouTube
Sponsors
Upcoming events
18
- •Online
Python + AI: Tool calling
OnlineNow that we're more than halfway through our Python + AI series, we're covering a crucial topic: how to use AI safely, and how to evaluate the quality of AI outputs.
There are multiple mitigation layers when working with LLMs: the model itself, a safety system on top, the prompting and context, and the application user experience. Our focus will be on Azure tools that make it easier to put safe AI systems into production.
We'll show how to configure the Azure AI Content Safety system when working with Azure AI models, and how to handle those errors in Python code. Then we'll use the Azure AI Evaluation SDK to evaluate the safety and quality of the output from our LLM.
Pre-requisites:
If you'd like to follow along with the live examples, make sure you've got a GitHub account.Habla español? Tendremos una serie para hispanohablantes!
35 attendees - •Online
Python + AI: AI agents
OnlineFor the penultimate session of our Python + AI series, we're building AI agents! We'll use many of the most popular Python AI agent frameworks: Langgraph, Semantic Kernel, Autogen, Pydantic AI, and more.
Our agents will start simple and then ramp up in complexity, demonstrating different architectures like hand-offs, round-robin, supervisor, graphs, and ReAct.
Pre-requisites:
If you'd like to follow along with the live examples, make sure you've got a GitHub account.Habla español? Tendremos una serie para hispanohablantes!
39 attendees - •Online
Shifting Offensive Security Left: Rethinking DevSecOps in the Age of AI
OnlineToday’s DevSecOps pipelines excel at finding issues, but not at knowing which ones truly matter. Traditional testing tools stop at detection, while real security validation often happens late, manually, and out of band.
In this session, we’ll explore what it means to bring offensive security intelligence into the developer workflow, unifying detection, validation, and remediation in a continuous loop. Using XBOW as an example, we’ll discuss how AI-driven reasoning can help teams move from theoretical findings to proof-backed, fix-verified security that keeps pace with modern development.
You'll learn:
- Why DevSecOps needs real-world validation (not just scanning) to close the loop
- How shifting offensive testing left changes prioritization, collaboration, and velocity
- How AI is reshaping the path from vulnerability discovery to verified remediation
This session is a part of a series, learn more here
20 attendees
Past events
1943