Calendar of events

Hi!
We invite you to the 34th meeting of the Tricity Data Community Group!

The meeting will take place at DNV’s office in Gdynia!

During the meetup, we’ll explore vector search and the challenges of deploying it in production environments. We’ll also take a look at the latest announcements and key updates from FabCon Barcelona 2026.

Participation is, as always, free of charge, but for logistical reasons, please register via Meetup and arrive before 6:00 PM.

Event details
Date: Wednesday, October 21
 Time: 6:00 PM
 Location: DNV Office, Luzycka 6E, Gdynia

Agenda

• 18:00 – 18:15 Welcome & Organizational Updates
• 18:15 – 19:15 Radosław Szulgo – Vector Search: My Way or the Highway! From Prototype to Production with Percona for MongoDB

Vector search has arrived in MongoDB Community Edition. Great! But “available” doesn’t necessarily mean “production-ready.”

Join me for the first public presentation of Percona Search for MongoDB, where we’ll take a no-nonsense look at the journey from a simple Proof of Concept (PoC) to the complex reality of running and maintaining such a system on your own infrastructure.

What will we cover?

The evolution of search: We’ll go from traditional full-text search through semantic search and hybrid search, all the way to RAG. Everything will be based on familiar MongoDB data patterns. Facing production reality: We’ll discuss the challenges that only become apparent in production — from embedding pipeline issues and scalability to gaps in authentication, monitoring, and automation of Day 2 operations. A practical solution: I’ll present a reference architecture that addresses these challenges through automatic embeddings, enterprise authentication, and vector index monitoring with Percona Monitoring and Management (PMM). And to wrap things up, no more theory-you’ll see a live demo of a fully working Percona Search stack, complete with a ready-to-use board game application!

• 19:15 – 19:25 Q&A
• 19:25 – 19:35 Break
• 19:35 – 20:35 Estera Kot – FabCon Barcelona 2026: What Was Already There, What’s New, and What’s Still Missing

FabCon Barcelona 2026 brought a long list of announcements: Fabric IQ in Microsoft 365 Copilot, ontologies, agents for data engineering and operations, a new OneLake security model, and tenant-level policies. In this session, I’ll break these announcements down into four categories: what was already available, what’s new, what’s not here yet, and what it all means for data teams.

• 20:35 – 20:45 Q&A
• 20:45 – 22:00 Pizza & Networking 🍕

Our Speakers

Radosław Szulgo

Radosław is a Senior Product Manager at Percona, where he works with his team on MongoDB and database tools. He is passionate about observability, with over 15 years of experience gained as a software developer, team leader, and product manager. Outside of work, he plays amateur handball and is interested in personal development.

Estera Kot

Estera is a Microsoft MVP, CTO at Clouds on Mars, and Assistant Professor in the Department of Cybersecurity at Kozminski University. She previously worked as a Principal Product Manager in Microsoft’s product group responsible for Microsoft Fabric, Synapse Analytics, and HDInsight.

Submit your talk!
Do you have knowledge you’d like to share? Want to explore an interesting topic, present a case study, or try your hand as a speaker? Get in touch with us – we’ll provide full support! Write to us at trojmiasto@datacommunity.pl.

We warmly invite you!

Hey, all data analytics people!

An absolute global star in the world of semantic model design and performance is going to visit us on Tuesday, October 13th! If you build just Power BI reports or something bigger on Microsoft Fabric, you need to block your diary and come over to our usual venue (MSFT office on Aleje Jerozolimskie in Warsaw).

One of “The Italians”, Marco Russo from SQLBI, a man who brings DAX closer to our skin, will be speaking about the choice that we all have to make – “where and how to keep our data”. Import Mode usually comes to our mind first, DirectLake seems to be natural in Fabric projects but there’s more…

If you want those questions answered case by case then think no more and visit us on Tuesday. Super high dose of technical details is guaranteed and you simply just cannot miss it.

Agenda
18:00 – 18:20 Gathering and welcome intro
18:20 – 19:20 Marco Russo – Compare different storage engines for semantic models
19:20 – 19:45 Networking, small and serious talks plus food

Session abstracts are available here

Meetup’s partner is Microsoft.

Logistics
Admission is free, but you have to register on Meetup.com before Monday morning.

If you want to be a speaker, please submit here 

See you!
Michał i Hubert

We would like to invite you to the SQLDay Lite 2026 conference, which will take place on 24-25 September 2026.

The conference will take place in

Gdańsk University of Technology
Building B, Faculty of Electronics, Telecommunications and Informatics
ul. Gabriela Narutowicza 11/12
80-233 Gdańsk

More details you can find on the event page.

Hello!

We invite you to the 33rd meeting of the Tricity Data Community Group!

The meeting will take place at the Hapag-Lloyd office in Gdańsk.

During the meeting, we will learn how to design context for LLMs and automate its refinement, as well as how to process only what has changed regardless of the technology used.

Participation in the event is, as always, free of charge. However, for logistical reasons, we kindly ask you to register via Meetup and arrive before 6:00 PM.

Event details
Date: Wednesday, June 24
 Time: 6:00 PM
Location: Hapag-Lloyd Office, Biuro Alchemia IV – Neon, Grunwaldzka 413, Gdańsk, Oliwa – 7th floor.

Agenda

6:00 PM – 6:15 PM Introduction and organizational matters
6:15 PM – 7:15 PM Hubert Jegierski – A prompt is not enough: how to design context for LLMs and automate its improvement

If you’re using LLMs, you may feel that a good prompt works great… until you switch models, the provider deprecates the version you’re using, or further tweaks start breaking what already worked.

In this presentation, you’ll see why “let’s just write a better prompt” is often not enough and where context engineering begins. You’ll learn about prompt technical debt, the impact of context on response quality, and why manually refining instructions quickly stops scaling.

At the end, you’ll see DSPy – a tool that helps reduce dependence on a single model and automatically search for better prompts in a more measurable way.

7:15 PM – 7:25 PM Q&A
7:25 PM – 7:35 PM Break
7:35 PM – 8:35 PM Piotr Tybulewicz – How to process only what has changed – a technology-agnostic pattern

In Fabric or Databricks, we already have built-in mechanisms for incremental processing today, and they are often sufficient. But what if, for some reason, we cannot use them? Or we want an approach that works independently of the technology?

In this session, you will see a universal change-detection pattern that works in any environment — Azure, Fabric, Databricks, dbt, Snowflake, and even on-premises. With it, you can skip data that has already been processed and focus only on what has actually changed.

8:35 PM – 8:45 PM Q&A
8:45 PM – 10:00 PM Pizza & Networking

Our speakers:

 Hubert Jegierski
A Machine Learning Engineer with 8+ years of experience in developing and deploying AI/ML-based solutions, combining academic and industry expertise. He has worked on AI/ML applications across a wide range of fields, including natural language processing (NLP), predictive maintenance, anomaly detection, and biomedical data analysis. Currently, he focuses on LLM-based knowledge management, such as fact verification in documents, sales support, and information retrieval.

Piotr Tybulewicz
A seasoned expert discussing data and broadly understood data engineering (especially in Azure).

Submit your topic!
Do you have knowledge you would like to share with others? Would you like to explore an interesting topic, present a case study, or try yourself as a speaker? Get in touch with us – we offer full support!
Email us at trojmiasto@datacommunity.pl.

Masz dane? No to mamy temat 😄 Zaraz po całkiem udanej konferencji SQLDay zapraszamy na meetup, gdzie zamiast suchych slajdów będzie konkret, mięso i trochę technologicznego funu! Najpierw Tomasz Waloszek pokaże, jak nie wylać danych razem z kawą (czyli jak ogarnąć bezpieczeństwo, GDPR oraz Azure tak, żeby spać spokojnie), a potem Paweł Potasiński rozwali nieco system i udowodni, że Snowflake to nie tylko „hurtownia z ładnym GUI”, ale pełnoprawny gracz w sekcji AI – bez całej tej zabawy w klastry, pipeline’y i inne „przyjemności”. Będą dema na żywo, będą nowe perspektywy i możliwe, że kilka momentów, w których zmienisz swoje poglądy polityczne – więc jeśli pracujesz z danymi albo po prostu lubisz wiedzieć, co w nich siedzi, wpadaj koniecznie 21. Maja 2026 do polskiej siedziby Microsoft przy alejach Jerozolimskich 195a !

Agenda
18:00 – 18:20 Gromadzimy się i powitanie
18:20 – 19:20 Tomasz Waloszek – Sensitive data – czyli jak zabezpieczyć dane przed incydentami
19:20 – 19:45 Networking, luźne rozmowy i poczęstunek
19:45 – 20:45 Paweł Potasiński – Snowflake Cortex AI Demo Hour

Abstrakty sesji dostępne są (lub będą) tutaj

Partnerem spotkania jest Microsoft.

Logistyka
Wstęp wolny, ale konieczna jest rejestracja, która skończy się na dwa dni przed spotkaniem.

Zachęcamy do zgłaszania swoich sesji. Jeśli wiecie coś, czego inni nie wiedzą, lub chcecie zgłębić temat, którego jeszcze nikt na naszej grupie nie przedstawiał: https://sessionize.com/warsaw-data-community-meetups/

Zapraszamy,
Michał i Hubert