Sessions

WELCOME

The story behind AWS community Day

Room: Yasmin-I | Time: 09:00

Welcome speech by Michal and Lydia about how AWS Community Day was started.

Michal Salanci

Organizer & AWS User Group Košice leader

Lydia Delyova

Organizer & AWS User Group Košice leader

KEYNOTE

Keynote - Rethinking how developers work

Room: Yasmin-I | Time: 09:15

What actually makes developers productive in 2025? This keynote cuts through the hype to examine real-world approaches that are transforming how teams build and ship software. Join us for an exploration of emerging patterns, tools, and practices that are reshaping development workflows. Through practical examples and live demonstrations, discover how teams are removing barriers and creating environments where developers can do their best work.

Gunnar Grosch 🇸🇪

Principal Developer Advocate @AWS

COFFEE1

Cofee break #1 supported by T-Systems international

Room: Expo | Time: 10:00

Proud sponsor of Coffee break #1 is T-Systems International

AI&DATA-01

Building Generative AI Applications That Execute Tasks Using Agents for Amazon Bedrock

Room: Yasmin-I | Time: 10:30

Agents for Amazon Bedrock enable you to build applications that can interact with your systems and data to automatically perform tasks and trigger complex workflows. Allowing you to build powerful, secure systems that are customized for your data and use case. In this session you’ll discover how to design and build genetic systems using AWS technologies. Including a demo and source code so that you can try it out for yourself!

Faye Ellis 🇬🇧

AWS Hero, Content creator & Principal Training Architect @Pluralsight

OPS-04

Declarative vs programmatic IaC

Room: Yasmin-II | Time: 10:30

What is the difference between declarative and programmatic Infrastructure as Code? Why it matters and when you should use each? Best practices for writing good Infrastructure as Code when using AWS CloudFormation, AWS SAM, AWS CDK, Pulumi, Terraform, SST, Serverless Framework, etc.

Jakub Gaj 🇵🇱

AWS Community Builder, Qubit NinjaSenior & Cloud Architect @LegoGroup

OPS-01

Build like The Frugal Architect: shift cloud optimization left

Room: Yasmin-III | Time: 10:30

In today's cloud-first world, cloud optimization can no longer be an afterthought. The Frugal Architect's principles provide a framework for embedding efficiency and governance into your early cloud adoption decisions. In this session, let’s discover how to implement cost-aware architecture patterns, automate governance controls, and make informed architectural trade-offs that balance technical excellence with business objectives. Learn how combining AWS Well-Architected Framework best practices with The Frugal Architect's laws can help your organization establish strong governance foundations and build more efficient, sustainable cloud solutions from day one. In this session I would like to: emphasize importance of governance alongside efficiency (it's not just about cost, but also making informed decisions about architectural trade-offs) lead with the "shift left" theme connect Well-Architected Framework with the laws of The Frugal Architect Depending on the time (how long the session can be?) I might include a demo.

Nataliya Godunok 🇺🇦🇮🇪

Senior Cloud Optimization Solutions Architect @AWS

DATABASE-01

Heterogeneous Database Migrations to AWS

Room: Yasmin-IV | Time: 10:30

Its like riding a bike... Story about how to migrate Oracle on-prem databases to Postgres Aurora in AWS.

Michal Holečka 🇸🇰

Partner @Aardwark

AI&DATA-04

Generative AI architecture patterns in production

Room: Yasmin-I | Time: 11:30

2024 has been the year of taking generative AI applications into production. Launching generative AI applications requires careful considerations around model selection and evaluations, fine-tuning versus RAG, security, privacy, hallucination control, and cost management. In this session, dive into some common architecture patterns, security guardrails, governance approaches, and optimization tricks that have been developed to support hundreds of AWS customers launch their generative AI workloads in production globally across popular use cases, like content generation, chatbots, document search, and more.

Anton Lukin 🇨🇿

Senior Solutions & Cloud Architect, GenAI Expert @AWS

OPS-03

Effective Cost Optimization in the Cloud - The Right Way

Room: Yasmin-II | Time: 11:30

In this session, we’ll demonstrate how to effectively reduce your cloud bill to a fraction of its original size. We will outline our approach to cost optimization as an ongoing process. Additionally, we’ll highlight how we’ve managed to significantly cut costs for many of our customers, for whom we host applications and gaming backends in the cloud using varying approaches and tactics.

Martin Hauskrecht 🇸🇰

TLDR DevOps newsletter Curator & Head of Engineering @LabyrinthLabs

COMPLIANCE&SECURITY-02

Nyx: Cloudonauts 2025

Room: Yasmin-III | Time: 11:30

Embark on an immersive Cyberpunk adventure as we uncover the fate of Nyx, one of the last remaining Cloudonauts. In this session, you'll explore AWS DevSecOps security services through an engaging, interactive narrative. Discover how innovative solutions—leveraging advanced forms and AI—enhance your security, and learn about powerful tools you never knew existed, from AWS Code Guru to AWS Signer.

Marek Šottl 🇨🇿

AWS Community Builder, Snyk Ambassador & HackiHub founder

OPS-02

Breaking the Cloud: Finding and Exploiting Misconfigurations in AWS

Room: Yasmin-IV | Time: 11:30

Misconfigurations are among the most common security gaps in cloud environments, often leading to severe breaches. In this session, we’ll dive into the world of AWS penetration testing, focusing on identifying and exploiting these misconfigurations to understand their impact. We’ll cover: Where to start with AWS pentesting, including key attack surfaces. Tools like CloudFox, Prowler, Pacu and others to discover vulnerabilities and insecure configurations. Real-world privilege escalation examples to demonstrate common attack paths.

Victoria Shutenko 🇺🇦

AWS Community Builder, Security engineer & Penetration Tester @TechMagic

LUNCH

lunch

Room: Expo | Time: 12:15

SERVERLESS-01

Event-Driven and serverless in world of IoT

Room: Yasmin-I | Time: 13:00

In large-scale IoT systems, where thousands of devices are constantly communicating, data and control messages can flow unpredictably and at varying rates throughout the day. Serverless and event-driven architectures provide a dynamic and efficient solution to this challenge. In this session, we’ll explore why serverless is a great fit for IoT, particularly in handling data ingestion and management. We’ll dive into the key architectural patterns used in IoT systems, highlighting how event-driven design enables scalability, flexibility, and cost optimization. I’ll also walk you through an architecture I designed for an IoT use case, showcasing the integration of various AWS services tailored for data ingestion, processing, and analytics. Along the way, we’ll discuss the challenges encountered and lessons learned during development, offering actionable insights into the unique aspects of building serverless IoT solutions. Join me to understand how serverless and event-driven architectures can unlock the full potential of IoT, enabling resilient and scalable systems that are easy to manage and adapt to evolving demands.

Jimmy Dahlqvist 🇸🇪

AWS Serverless Hero, AWS Ambassador, AWS Certification Lead SME & Cloud architect

AI&DATA-03

You don’t think about your Streamlit app optimization until you deploy it to AWS

Room: Yasmin-II | Time: 13:00

Building Streamlit apps is easy for Data Scientists but when it’s time to deploy them to the cloud, challenges like slow model loading, scalability, and security can become major hurdles. This talk bridges two perspectives: the Data Scientist who builds the app and the MLOps engineer who deploys it. We'll dive into optimizing model loading from Hugging Face Hub, implementing features like autoscaling and authentication, and securing your app against potential threats. By the end of this talk, you’ll be ready to design Streamlit apps that are functional and deployment-ready for the AWS.

Darya Petrashka 🇵🇱

AWS Community Builder, AWS Authorized Instructor & Senior Data Scientist @SLB

OPS-05

High Quality Infrastructure (as Code) with AWS CDK

Room: Yasmin-III | Time: 13:00

Ideas, patterns, workflows, and tools that successful teams utilize within their infrastructure definitions and deployment pipelines to build robust cloud applications. This talk also explains why AWS Cloud Development Kit (CDK) can be a good choice (and when it might not be) for defining cloud resources. This talk focuses on AWS CDK and some CloudFormation related topics, but you should get many ideas out of this talk even if you use some other infrastructure as code tooling (like Terraform). Basic knowledge of infrastructure as code concepts recommended for attending this session.

Ari Palo 🇫🇮

AWS Community Builder & Lead Technologist @AlmaMedia

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

COFFEE2

Cofee break #2

Room: Expo | Time: 14:45

SERVERLESS-02

How to build serverless apps in 2025?

Room: Yasmin-I | Time: 15:15

Let's take a look at how to build Serverless apps in 2025 and what tooling to use. The talk will focus predominantly on AWS environment, but we might also take a peek at rising stars among the cloud providers like for example CloudFlare. We will take a look at SST.dev framework/tool which is built on top of Pulumi and focuses on providing the best Developer Experience when building cloud-native applications.

Filip Pýrek 🇨🇿

AWS Hero & Solutions architect @PurpleTechnology

COMPLIANCE&SECURITY-01

Achieving governance at scale

Room: Yasmin-II | Time: 15:15

As businesses scale their cloud operations, maintaining consistent enforcement of policies and standards becomes increasingly complex. This breakout session delves into the powerful capabilities of AWS Control Tower, AWS Config, and AWS Organizations, providing attendees with a comprehensive understanding of how to achieve governance at scale. Learn how to integrate AWS services to automate governance processes, streamline incident response, and enforce security best practices across AWS environments.

Tala Qraitem 🇯🇴

Senior Security Consultant @AWS

AI&DATA-05

AWS DeepDoc Scan

Room: Yasmin-III | Time: 15:15

DeepDoc Scanner is an AI-powered solution designed for searching structured and unstructured data efficiently. It automates document processing, eliminating manual work and minimizing the risk of errors. The system enables fast and precise retrieval of critical information, improving access to essential business insights. With built-in auditability and traceability, it enhances operational efficiency and compliance. DeepDoc Scanner supports digital transformation by converting paper-based documents into digital formats. It facilitates data categorization and analysis across multiple formats, including PDFs, Word, Excel, and OCR-processed images. The solution seamlessly integrates with existing data sources, ensuring smooth connectivity and accessibility. It features permission-based content filtering, allowing users to access only authorized information. DeepDoc Scanner includes various connectors and identity management capabilities to support secure data processing, making it a reliable and efficient tool for modern businesses.

Roman Čerešňák 🇸🇰

AWS Solutions Architect @DevOpsGroup

END

End speech and thank you

Room: Yasmin-I | Time: 16:20

End speech and thank you by Michal and Lydia

Michal Salanci

Organizer & AWS User Group Košice leader

Lydia Delyova

Organizer & AWS User Group Košice leader