Szymon Kulec
software • .NET • performance
Warsaw, Poland
Actions
I believe that simplicity strongly resonates with a good architecture and results in an amazing performance of both: the engineering and the product itself. I like my data to be served fast. I don't allocate before evening.
Area of Expertise
Topics
Async Reloaded
Asynchronous programming has firmly established itself in .NET, and today it’s hard to imagine applications without async/await. In this session, we’ll look at the new patterns and capabilities that have emerged in the ecosystem, as well as the experimental APIs introduced in .NET 10. We’ll also discuss the famous red and blue functions — and what’s really hiding behind the color purple.
.NET developers, ~55 min long
Is it still C#? Practical systems programming with .NET (war stories included)
We built a database in .NET and pushed the runtime to its absolute limits. In this talk, we'll dissect the engineering decisions we made, extracting hard-won lessons you can use to build truly high-performance software. Expect battle-tested techniques you can apply to any demanding .NET service. Even if it's not a database.
Join us to learn how to survive the sharp edges of systems programming. We'll explore:
1. JSON and Beyond
2. The Memory Game
3. Taming the State Machine
4. Beyond the Cache Line
5. Vectorize Everything!
6. Surviving the Ecosystem
~60 min. but not less than 50 minutes, .NET & related (public cloud will be referred to), for people interested in building great software
A Michelin-Starred Recipe for Agents
Everyone wants a Three-Michelin-Star AI Agent. It looks so simple on the menu: a dash of LLM, a reduction of conversations, a garnish of autonomous tools, and a sprinkle of RAG. But in the kitchen of DIY development, "simple" is the first ingredient in a recipe for disaster.
Join Chef Szymon Kulec from RavenDB for a behind-the-scenes look at the "tasting menu" of agent construction. First, we'll inspect the complexity of our base ingredient: the LLM. Then, we'll try to save our fingers from the universal blender of MCP and tools. From there, we move to data visibility, the ultimate question of "Should everyone know how the sausage is made?", before tasting our RAGoût to see how we can make it cook faster. Have we mentioned that we'll reduce our conversation sauce? We will!
At the end, we’ll finish with a GenAI twist that might save you a fortune.
A talk for technical people, showing ingredients what is needed to create an agent.
WeAreDevelopers World Congress 2026 - Europe Sessionize Event Upcoming
Please note that Sessionize is not responsible for the accuracy or validity of the data provided by speakers. If you suspect this profile to be fake or spam, please let us know.
Jump to top