14:00 - 14:45

AI&DATA-02

From MacBook to Bedrock: Lessons from Building an AI Assistant

Room: Yasmin-I | Time: 14:00

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, Chairwoman Förderverein AWS Community DACH & AWS User Group Leader

Philipp Bergsmann 🇦🇹

EMEA Black Belt, Managed OpenShift @RedHat

SERVERLESS-03

Beyond the Warehouse Walls: Scaling logistics with Serverless First Principles

Room: Yasmin-III | Time: 14:00

Describing Serverless First Principles, including event-driven design, scalability, and managed infrastructure. Describing the benefits of modular and event-based systems that enhance resilience and enable rapid innovation. Diving into cost-optimization strategies using AWS serverless pay-as-you-go pricing and auto-scaling features. Real-world application/case study: how serverless technologies like AWS Lambda, DynamoDB, Aurora, S3, SNS, Event-bus, SQS and Step Functions help streamline warehouse operations and logistics at GymBeam, from inventory management, to real-time order fulfillment with next day delivery.

Tomáš Sabol 🇸🇰

Senior Full-stack & cloud engineer @GymBeam

Martin Baroš 🇸🇰

Senior Cloud Engineer & Architect @GymBeam