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Vassilis Poursalidis

Principal Software Engineer
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Speaker's Bio

Anyone that has written any kind of App will be faced with the problem of how to register users and authenticate them. But user registration and authentication is boilerplate while implementing your idea. It is not your core domain, but a supporting domain that needs to exist.
Anyone that has written any kind of App will be faced with the problem of how to register users and authenticate them. But user registration and authentication is boilerplate while implementing your idea. It is not your core domain, but a supporting domain that needs to exist.
2024 cybersecurity
SWC

Revisiting user registration and authentication

Fri 22 Nov 2024 • 17:05 (CET)
Auditorium

Login forms are boring? Think again. Vassilis Poursalidis (Epignosis) revisits the overlooked foundation of most web apps — user registration and authentication — and makes a strong case for using modern cryptographic protocols like Proof of Work and Zero Knowledge Password Proofs. Learn how to stop brute force attacks, improve security, and rethink your app’s first line of defense.

Vassilis Poursalidis
2026 ContinuousDelivery Developers IncrementalDelivery Lean TechLeads VerticalSlicing
Software Craftmanship

Elephant Carpaccio: the art of thin slicing

TBA (CET) • Basic
TBA

Most features arrive late, break things, and hide complexity until it hurts. Branch deployments are a rigged game: merge early and you break things, merge late and integration becomes a nightmare. Whatever you do, you lose. The only way to win is to stop playing.

Enter Elephant Carpaccio, a software development exercise that teaches vertical slicing, incremental delivery, and how to keep software deployable at all times. Instead of delivering the whole elephant at once, you learn to carve it into the thinnest possible slices: each one small, end-to-end, deployable, and providing visible progress. The goal isn’t to finish the feature. It’s to learn how to evolve software safely.

In this hands-on workshop, you’ll practice exactly that. You’ll feel the difference between fat slices and thin ones, and walk away with a technique you can apply the very next day.

If you’ve got PTSD from releases, this one’s for you.

Disclaimer: No actual elephants will be harmed during this workshop

Vassilis Poursalidis
  • 10:20 - 10:40
  • Auditorium
  • Theme: Tech with Impact

Day oppening: Impossible is Nothing

  • A discussion of building global success and how artificial intelligence is transforming the world.

A discussion of building global success and how artificial intelligence is transforming the world.

  • 16:15 - 16:25
  • Auditorium
  • Theme: Other

Closing

  • 16:00 - 16:15
  • Auditorium
  • Theme: Other

Hackathon Final Pitching

  • 15:40 - 16:00
  • Auditorium
  • Theme: Other

Open Award

  • 14:55 - 15:40
  • Auditorium
  • Theme: Panel

Panel / Debate discussion

  • 14:45 - 14:55
  • Auditorium
  • Theme: Sponsor

Gold Sponsor Speech

See the Full Agenda
  • 14:30 - 15:30
  • Tags: #SW

Embracing Chaos: Harnessing the Power of Chaos Testing for Resilient Systems

  • Testing is essential to ensure that your software application performs as expected. No doubt about it. But even if your application runs smoothly in a testing environment, unexpected incidents can occur in production, such as a crashed database or a lost connection to a third-party service. To ensure your application can handle such incidents and minimize their impact, you need to incorporate chaos testing into your delivery process. In this workshop, we will start with a brief introduction to k6 for backend performance testing and we’ll explore how to implement chaos testing using k6 for two backend services, to help you ensure the resilience of your application.
  • 12:05 - 13:30
  • Tags: #SW

Liberate your data using Redis Stream and Go

  • Redis is an in-memory database popular for many use cases, such as content caching, session stores, real-time analytics, message broker and data stream needs. Since version 5.0 of Redis a new data structure, Redis Streams, dedicated to managing streams has been introduced. Using Redis Streams, anyone can do a lot more than what was possible with Pub/Sub, Lists or Sorted Sets in the data stream domain. In this all-hands session, we’ll walk you through the basics of how to use Redis Streams, how consumer groups work, and finally show a working application using Go that uses Redis Streams.
  • 11:15 - 11:55

From Spark to Launch: The Thrilling Ride of Building Great Products

  • Join us for an exciting firechat with experts from product management, test engineering, DevOps, and software development. We’ll take you through the journey of turning an idea into a fully finished product ready for the market. Hear firsthand from our panelists about the teamwork needed to create innovative products. They’ll share insights about the ups and downs, breakthroughs, and challenges they’ve faced. Learn the secrets of successful product launches, including careful planning, prioritizing tasks, and effective teamwork. Find out how testing and quality checks ensure product excellence, and see how continuous integration and DevOps practices make the process smoother. Understand why user feedback is important for improving products, and get tips on the latest tools and methods that boost efficiency and innovation. Whether you’re experienced or just starting out, you’ll gain valuable insights into every step of bringing a product to life, from the first idea to the final launch.
  • 15:35 - 16:30

Transitioning a Content Streaming Platform from Monolithic to Microservices

  • 14:30 - 15:25
  • Tags: #AI

AI & Data Science: Insider Insights from Tech Leaders

  • Join us for an interactive workshop where Matina & Lilian having worked as Tech / AI Leaders at Meta, IBM, Vodafone, Startups share valuable insights into the opportunities available in AI and data science. Gain practical knowledge and industry perspectives to guide your career journey in this rapidly evolving field
  • 12:25 - 13:20

LLM vs RAG – the challenges and opportunities in real life use cases on real life problem

  • In this 50-minute workshop participants will delve into the intricacies of Large Language Models (LLMs) and Retrieval-Augmented Generation (RAG). The session will explore how these advanced AI technologies are transforming various industries by enhancing natural language understanding and generation. Attendees will gain insights into the fundamental differences between LLMs and RAG, their respective strengths, and the unique challenges they present when applied to real-world scenarios. The workshop will also highlight practical applications and case studies, showcasing how businesses and researchers are leveraging LLMs and RAG to solve complex problems. Participants will have the opportunity to engage in interactive discussions, addressing common obstacles such as data privacy, model interpretability, and scalability. By the end of the session, attendees will be equipped with a deeper understanding of how to harness the potential of these cutting-edge technologies to drive innovation and efficiency in their own projects.
See the Full Workshops Agenda