Name: GoWroc #60
Start: 2025-12-10T18:00:00+01:00
End: 2025-12-10T20:00:00+01:00
Location: Sagittarius Business House

Hey Gophers! ❄️

The days are shorter, the air is colder, and that means it’s the perfect season to gather for the December **GoWroc #60 Edition** meetup! Join us on **December 10th** at [HelloFresh](https://careers.hellofresh.com/global/en/poland) office as we wrap up the year with two great talks and a warm winter atmosphere. 🎄🔥

Expect good conversations, good talks, and plenty of **food and beverages** to keep spirits high. 🍽️🥤 See you there! 🎉

Thanks HelloFresh for sponsoring this event and hosting us! 🎉

📅 Agenda

🕕 17:45 Networking
Let’s grab a bite and catch up 🥤🍪

🕕 18:00 Talks

➡️ **Arek Ziobrowski: Decoding the improvements in Go 1.25 JSON v2 package**

The standard encoding/json package has served Go well for over a decade, but time has revealed its limitations in both performance and flexibility. In this talk, we will delve into the long-awaited improvements introduced in the experimental encoding/json/v2 package introduced in Go 1.25. We will go through the new features, performance optimizations, and how this update addresses the friction points of the original package.

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

➡️ **Shaharia Azam: Architecting Agentic RAG in Go: Building HelloFresh’s Internal AI Platform**

We are past the era of simple chatbots. At HelloFresh, we rely on Applied AI to unblock our engineers—moving from basic retrieval to Agentic RAG, where networks of autonomous micro-agents plan, use tools, and debug complex internal problems. While the industry defaults to Python for agents, we took a different path: we built our entire agentic ecosystem—from reasoning loops to knowledge ingestion—natively in Golang.In this talk, I will share how we architected a distributed, production-grade AI platform using Go microservices. We treat 3rd-party LLMs purely as inference engines, while Golang handles the real complexity: managing multi-agent coordination, massive concurrent ingestion pipelines, and stateful tool execution.
We will dive into the technical design of our distinct services—specifically the high-throughput Ingestion Service and the Micro-Agent Service. Learn how this Go-centric approach enabled us to build an internal “No-Code Agent Builder,” allowing domain teams to deploy their own agents that serve streaming, real-time answers at scale.

🕢 20:00 Networking

👥 Speakers

➡️ **Arek** \- I am a software engineer\, mostly doing backend development nowadays\, but also with background in data engineering\. I enjoy creating scalable and maintainable systems\, building products\, clean code and collaborating with people\.

➡️ **Shaharia Azam** \- Software Engineer at HelloFresh\. Accelerating GenAI at HelloFresh with specialization in Golang\, GenAI and Platform engineering\.

🌍 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.

💰 About Sponsor

At HelloFresh Group, we want to change the way people eat forever by offering our customers high-quality food and recipes for different meal occasions. Over the past 10 years, we’ve seen this mission spread around the world and beyond our wildest dreams. We are a digital-native FMCG company and the world’s leading meal kit company, active in 18 countries across 3 continents. Now, we are expanding with a new office in Poland. With brands offering meal kits, ready-to-eat meals, and specialty products such as meat, seafood, and pet food, we are seeking individuals who are ready to make an impact from day one. Joining us in Wrocław means shaping the culture, working on meaningful R&D Tech projects, and contributing to a global company. Our Polish office is located at Loftmill Sagittarius, Sucha 2, 50-086 Wrocław.
At HelloFresh Group, we are driven by a high-performance culture that values speed, agility, and continuous learning. We believe in hands-on contribution and fostering a truly collaborative, egoless environment where every team member contributes to our mission of changing the way people eat, forever and welcome team players who thrive in a dynamic environment, lead with ownership, and bring diverse perspectives to the table.You can find all our open positions in Poland here: [https://careers.hellofresh.com/global/en/poland](https://careers.hellofresh.com/global/en/poland)

**NOTE:**
Please note that CCTV is in operation at the venue. We will also take photos during the event for promotional purposes and may share them on HelloFresh’s social media channels as part of the event follow-up.

Rafael Romero Lopes

Arkadiusz Ziobrowski

Krzysztof Drys

GoWroc

Go Developers

Technology

Golang

Software Development

Geek Culture

Programming Languages

Lean Startup

Computer Programming

Concurrent Programming

GoWroc #60

Sagittarius Business House

Share

GoWroc

GoWroc #60

GoWroc

Details

Members are also interested in