ACD450

From MacBook to Bedrock: Lessons from Building an AI Assistant

Room: C1 | Time: 13:00 | Duration: 45 min

Training an AI-powered Slackbot sounds straightforward - until your model starts ignoring half of the data you feed it. At AWS User Group Vienna, we built OTTO, a Slack-integrated AI assistant, fine-tuned using the open source tool InstructLab and deployed on Amazon Bedrock. But as we scaled up, we ran into real-world bottlenecks: training on MacBooks was slow, retrieval was inconsistent, and debugging was way harder than expected.

This talk goes beyond the ‘perfect AI stack’ and into the messy reality of model tuning, infrastructure choices, and the unexpected lessons we learned. If you’re working on AI-powered assistants (or just curious how fast things can go sideways), this talk will provide practical insights into our approach, with focus on cost efficiency, and what we learned on the way.

Linda Mohamed

AWS Hero from Vienna, AI & Cloud Enthusiast, a speaker from AWS re:Invent

ACD750

Is Amazon Verified Permissions the right authorization solution for your application?

Room: D8 | Time: 13:00 | Duration: 45 min

In today’s app development world, developers face many choices for handling authorization - from built-in framework solutions to third-party packages. Amazon Verified Permissions offers a cloud-based approach with its Cedar policy language, but is it worth adding to your tech stack?

Join this session for a hands-on look at AVP through practical examples. We’ll break down how Cedar’s policy language works, show you integration options that actually work, and honestly discuss the challenges you might face. Most importantly, we’ll dive deep into the pricing model to help you make an informed decision about whether AVP is the right fit for your authorization requirements.

Daniel Aniszkiewicz

AWS Security Hero, Senior Software Engineer at Algoteque

ACD650

Take Your Tests to the Cloud with Testkube

Room: D9 | Time: 13:00 | Duration: 30 min

As modern applications adopt cloud-native architectures, testing must evolve to keep up. In this presentation we’ll explore how Testkube, an open-source framework, streamlines testing workflows in Kubernetes environments.

We’ll discover how it integrates seamlessly with popular testing tools, how it fits naturally into CI/CD pipelines, and how its declarative configurations aligns with GitOps principles. Additionally, we’ll examine the benefits of centralized test reporting and how it helps to tackle scalability issues.

Tomáš Hradec

Kubernetes Expert, Cloud Native Enthusiast

Agenda

13:00 - 13:45 Breakout 3