Data Builders’ Evening: Architecture, Engineering & Beyond

Important: Register on the event website is required for admission.

Description:
Data Builders’ Evening: Architecture, Engineering & Beyond
Welcome to the AI meetup in Berlin, in collaboration with RisingWave. Join us for deep dive tech talks on AI, GenAI, LLMs and machine learning, food/drink, networking with speakers and fellow developers.

Agenda:
* 6:00pm~7:00pm: Checkin, Food/drink and Networking
* 7:00pm~9:00pm: Tech talks and Q&A
* 9:00pm: Open discussion and Mixer

Tech Talk: Achieving Sub‑100 ms Real‑Time Stream Processing with an S3‑Native Architecture
Speakers: Yingjun Wu (Founder and CEO at RisingWave Labs)
Abstract: Stream processing systems have traditionally relied on local storage engines such as RocksDB to achieve low latency. While effective in single-node setups, this model doesn't scale well in the cloud, where elasticity and separation of compute and storage are essential. In this talk, we'll explore how RisingWave rethinks the architecture by building directly on top of S3 while still delivering sub-100 ms latency. At the core is Hummock, a log-structured state engine designed for object storage. Hummock organizes state into a three-tier hierarchy: in-memory cache for the hottest keys, disk cache managed by Foyer for warm data, and S3 as the persistent cold tier. This approach ensures queries never directly hit S3, avoiding its variable performance. We'll also examine how remote compaction offloads heavy maintenance tasks from query nodes, eliminating interference between user queries and background operations. Combined with fine-grained caching policies and eviction strategies, this architecture enables both consistent query performance and cloud-native elasticity. Attendees will walk away with a deeper understanding of how to design streaming systems that balance durability, scalability, and low latency in an S3-based environment.

Tech Talk: From Raw Data to Trusted Assets: A Practical Walkthrough with AWS services and Collibra
Speakers: Behnaz Derakhshani (Specialist Data Engineer at Diconium)
Abstract: Expect a hands-on journey showing how modern data lake tools and governance platforms connect the dots - making your data discoverable, governed, and productized for real-world use.

Tech Talk: Effective Agentic genAI in data streaming
Speakers: Erik Schmiegelow (CEO at Hivemind Technologies)
Abstract: Successful gen AI projects strike the balance between impact, accuracy and cost - im this talk, we cover how to create agentic data applications effectively, choosing when and how to integrate them in data streams and keep response quality issues and costs in check.

Speakers/Topics:
Stay tuned as we are updating speakers and schedules. If you have a keen interest in speaking to our community, we invite you to submit topics for consideration: Submit Topics

Venue:
Diconium GmbH Berlin Office, Skalitzer Straße 126, 10999 - Berlin

Sponsors:
We are actively seeking sponsors to support AI developers community. Whether it is by offering venue spaces, providing food, or cash sponsorship. Sponsors will not only have the chance to speak at the meetups, receive prominent recognition, but also gain exposure to our extensive membership base of 10,000+ AI developers in Berlin and 500K+ worldwide.

Local and Global AI Community on Discord
Join us on discord for local and global AI tech community:

• Events chat: chat and connect with speakers and global and local attendees;
• Learning AI: events, learning materials, study groups;
• Startups: innovation, projects collaborations, founders/co-founders;
• Jobs and Careers: job openings, post resumes, hiring managers