Name: Open Source Data Happy Hour
Start: 2026-03-04T22:30:00.000Z
Location: Le Parc Coworking Offices

Open Source Desayuno: enjoy food and deep technical talks
Open your day with a solid breakfast and practical discussions on **Apache Kafka**, **ClickHouse**, **PostgreSQL** and much more. Enjoy a session designed for data engineers, architects and technical decisions-makers like you, who want to address the challenges they face in data-infrastructure. No high-level pitches but straight into practical discussions on how to build scalable, efficient open sourced-powered data platforms.
We are excited to announce that **Lizzeth Quinteros, Platform Engineering Lead at eDreams ODIGEO**, will be joining us as our customer speaker. We will be talking with her about current trends and how **Aiven is supporting eDreams ODIGEO** on their platform journey, with a specific focus on **Apache Kafka.**
What's on the menu (other than a delicious breakfast):

* **Deep dives** into new features and upcoming technical roadmaps, including **Aiven Inkless**, **Kafka,** **Apache Iceberg**, **OpenSearch**, **PostgreSQL**, and **ClickHouse**
* **Real case studies** demonstrating how top engineering teams are solving core data problems with these stacks, including search, observability, and analytics use cases powered by OpenSearch.
* **Optimization techniques** for performance, cost-efficiency, and operational simplicity.

So what are you waiting for? Secure your seat now!

Barcelona Open Source Data Infrastructure Meetup

Florian Engel

Joshua Lorenzana

Gonzalo Velazquez

Marcel Bostan

AnaCostilla

kaisu.seppala

Ioana Acsinia

María Belén Gramajo

Jasmine

André Loureiro Dias

Alexis Gomel

Open Source Data Breakfast

Glories

Open Source Breakfast: practical talks on Kafka, ClickHouse, and PostgreSQL for data engineers and tech leads, with actionable configurations.

Open Source Happy Hour: enjoy food and deep technical talks

**What to Expect:**
Finish your day with a pizza, drinks and practical discussions on **Apache Kafka, ClickHouse, and PostgreSQL**. This session is designed for data engineers, architects, and technical decision-makers who want to solve real-world data infrastructure challenges. Expect no high-level pitches—just straight, practical discussions on building scalable, efficient, open-source-powered data platforms.

**The Presenters:**

* **[Maja Schermuly](https://www.linkedin.com/in/majaschermuly/)**, Solution Architect at [Aiven](https://aiven.io/) – *Diskless Kafka 101: Navigating KIP-1150*
* **[Jeff Carlson](https://www.linkedin.com/in/jeffrey-carlson-07b64b2/)**, Manager, Solution Architecture at [Aiven](https://aiven.io/) – *Tuning the Engine: Postgres & ClickHouse Optimization*

**The Crowd:**
You’ll be joining a focused group of **data engineers, systems architects, and technical leads**. It’s a high-signal environment tailored for those managing complex data pipelines and infrastructure who prefer technical deep-dives over marketing fluff.

**Abstracts:**
Abstract Session 1: Maja will walk through the key changes in KIP-1150, demonstrate the new configuration options with some all open source examples, and show you exactly how your existing Kafka deployments can benefit from object storage backends. Come along for practical insights into when diskless makes sense, what trade-offs you're making, and how to evaluate if your use cases are a good fit. Plus, she’ll share the specific configurations and gotchas that early adopters have discovered.

Abstract Session 2: Modern data infrastructure demands more than "out of the box" configurations. This session is a deep dive into the specific tuning parameters that make or break open-source database performance. We’ll explore PostgreSQL indexing strategies for high-throughput environments and how to leverage ClickHouse’s specialized engines for sub-second aggregations. Expect a "no-fluff" breakdown of query optimization, memory management, and the specific "gotchas" of scaling these databases on commodity hardware vs. cloud object storage.

**Location:**
Le Parc Coworking Offices, 287 Park Ave S · New York

New York City Open Source Data Infrastructure Meetup

WILL

Gulema Gerressu

Safal Gautam

Alex magid

mauricio

Nick Lange

Open Source Data Happy Hour

Le Parc Coworking Offices

Aiven

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