GoWroc #65

Hey Gophers! ❄️
The days are getting shorter, the winter chill is settling in, and December is right around the corner! It’s the perfect time of year to warm up with the GoWroc #65 meetup. Join us on December 3rd at Wędrówki Pub.

Expect the usual great company, insightful talks, and a chance to grab a drink and catch up with the community before the end-of-year rush kicks into full gear. 🍺

See you there! 🎉

📅 Agenda

🕕 17:45 Networking
Let’s grab a beer and catch up 🍺

🕕 18:00 Talks

➡️ Paweł Kowalak: Designing low latency systems

Trading systems live or die by tail latency. Service that looks fast on average can be unusable in the 1% of requests that actually matter. This talk is a live tour through three versions of an Order Management System in Go: a naive Postgres-backed handler, an in-memory mutex-per-account variant, and a single-writer actor model. We’ll load-test all three side by side and watch p50, p90, and p99 in a real time.

🕖 19:00 It's networking time and while refueling our energy let's take another chance to chat with your fellow gopher!

➡️ How do we use AI in October 2026

This will be a set of lighting talks (up to 15 minutes) about how different people use AI in October 2026. What works and what doesn’t? What is your favourite model? What works when using AI for coding and when deploying AI model to production?

We have a few spots left for this one, so write us if you want to present. We would love to hear opinions from people with different backgrounds.

🕢 20:15 Networking

👥 Speakers

➡️ Paweł - backend engineer at alpaca.markets, currently building low-latency trading and crypto systems in Go. His background spans Linux ops, networking, and security, with a long-standing interest in distributed systems.

🌍 Go Developers Network

We are a part of GDN, which is a collection of Go user groups working together with a shared mission to empower developer communities with the knowledge, experience, and wisdom to build the next generation of software in Go.