Event Driven Architecture

Join Sandon Jacobs on Monday, May 25th from 6:00pm hosted by Improving! 📍**Venue:** **Improving Office** 171 East Liberty St Unit 235 Toronto, Ontario M6K 3P6 **Directions (171 E Liberty St - Suite 235)** **By transit** Streetcars 504 and 509 both travel close to the office (less than 10 minute walk to the office from either), the lakeshore GO train is also a 5 minute walk from the office. **By car/parking** On street parking is available - there are a handful of paid parking spots directly in front of the entrance - with a large city parking lot across the street. **Entrance** The entrance to the office is beside the Bulk Barn entrance facing Hannah Street. There is an Improving logo on the door. 🗓 **Agenda:** * 6:00pm – 6:30pm: Welcome, Food/Drinks & Networking * 6:30pm - 7:30 pm: **From Chaos to Contract: Governing Data Streams** by Sandon Jacobs **💡 Speaker Details:** Sandon Jacobs, Senior Developer Advocate, Confluent **From Chaos to Contract: Governing Data Streams** So you’re committed to this path of data streaming with Apache Kafka. But, here’s a question: would you build a REST API and make users guess the request and response formats? Doing so opens a Pandora’s Box… * What’s the domain model? * Name the operation… POST? GET? PUT? PATCH? * What does this error code even mean? * Is the documentation - if it even exists - accurate and relevant? * Imagine the complex, repetitive logic every consuming system would need to implement to make sense of it all. In a distributed, asynchronous system, these problems are magnified. Apache Kafka's flexibility—messages as simple bytes—is a huge strength, but it's also a major risk. While your event streams likely consist of some structured data (maybe JSON strings), enforcing structure, managing evolution, and basic validations aren’t a hard requirement. This leaves consumer applications to perform this preprocessing of every event - even if that event has no business value. In this session, we'll define data contracts and how to enforce them at the source - the applications that produce events. We’ll cover the practice of using a schema registry - supporting popular serialization formats like Apache Avro and Google Protobuf - to design events in the terminology of our business domain. Because data structures change over time, let’s discuss safe schema evolution practices. Then we’ll utilize these contracts with schema registry-aware producer and consumer code. We’ll end our time by looking at how smart CI/CD pipelines and build-time checks can add an extra layer of defense against the costly problem of poison data. It’s time to stop guessing and start governing. Join us to learn how to move validation upstream and transform your event streams into high-quality, discoverable data products. You’ll walk away with a practical blueprint for enforcing schema integrity and automating evolution—ensuring your data streams are a trusted asset. \*\*\* DISCLAIMER We don't cater to attendees under the age of 18. If you want to host or speak at a meetup, please email [community@confluent.io](http://community@confluent.io/)

🎟 **This is a paid event. Tickets must be purchased on Luma.** **Get yours: [https://luma.com/tiequest-2026](https://luma.com/tiequest-2026)** **\#\#\#\# TiEQuest Summit 2026 \- Building in Canada for the World** A morning built for founders who are done thinking small - and ready to hear how the best in Canada actually went global. **🧠 What to Expect** Sharp talks and practical insights from founders, operators, and investors who are actually doing the work. No fluff, just the real story of what it takes to scale ambitious companies from Toronto to the world. **🤝 Who's in the Room** Founders at every stage. Operators building something meaningful. Investors looking for what's next. If you're shaping the future of Canadian tech, you belong here. **📍 Where** U of T Schwartz Reisman Innovation Campus, one of Canada's most exciting hubs for tech and entrepreneurship. **📅 Monday, May 25, 2026** **⏰ 8:30AM – 12:30PM** **📍 108 College St, Toronto, ON**

These monthly socials are a chance to network with other students and professionals in the geomatics field to chat GIS, data, remote sensing, surveying and more in a casual atmosphere. Feel free to bring friends and colleagues along - we're eager to welcome everyone back for a fantastic evening! This is a free event. Please RSVP to let us know you're attending.

Join us for **Fiddler on the Roof in Yiddish**, an extraordinary, award-winning production that critics are calling the most powerful *Fiddler* ever staged. Performed in Yiddish with English subtitles, this deeply moving and authentic interpretation (directed by Joel Grey) brings fresh emotion, humour, and resonance to the beloved story of Tevye and his family. ***Our group will save over 60% off the regular price! We'll be seated in the second half of the First Balcony @ $46 all fees included (regular $106.75). CLICK ON "Read More" BELOW FOR FULL DETAILS.*** **The Show:** In 2018, New York audiences fell in love with this truly authentic version of Fiddler for the very first time. Don't miss the Drama Desk Award-winning production of one of the greatest musicals ever written, presented in Yiddish with English subtitles. Laugh, cry, and feel the love at this powerful and universal testament to the strength and resilience of Jewish community. [More information](https://hgjewishtheatre.com/2025-2026-Fiddler-on-the-Roof.html?gad_source=1&gad_campaignid=23805489280&gclid=CjwKCAjwwpDQBhAuEiwAa-4Wo1l9txSTfAUH9KZAAuwVeAYnrF9_GaZqr2CP_vgrwRDVJaBTDOM1BRoCzxIQAvD_BwE#calendar). *** **OUR DISCOUNT TICKETS** **Group Tickets:** * **$46 including HST and service fee** (regular $106.75 with HST and service fee) ***No Meetup Fee*** *** **HOW TO PAY** 1\. Sign up on this event page 2\. Send an email to **belindameetup@gmail.com** to request the payment instructions 3\. Specify you are inquiring about **FIDDLER ON THE ROOF IN YIDDISH** 4\. Include the name you use on this Thumbs Up Theatre website\. 5\. Belinda will email you the payment instructions 6\. If you don't receive the instructions in your inbox\, check your junk box in case it has gone there **PAYMENT DEADLINE:** Sunday, May 24 @ 8 p.m. Members must purchase their ticket(s) in advance from Belinda. Purchase early to avoid disappointment. Pick up your ticket(s) from Belinda at the meetup spot on the day of performance. \*\*\* **OVERVIEW** **When:** Monday, May 25, 2026 **Time:** Show starts at 7:30 p.m. Meet Belinda between 6:45 p.m. and 7 p.m. **Where:** Elgin Theatre, 189 Yonge Street, Toronto, Ontario **Show Length:** 3 hours with one intermission *** **ACCESSIBILITY** The Elgin Theatre's first balcony is not accessible for wheelchairs or walkers. While there is elevator access to the mezzanine level, stairs are required to reach all seating in this section. If you require accessible seating in the Orchestra, please let Belinda know so she can check on availability and pricing. *** **MEETUP ARRANGEMENTS** Meet Belinda any time between 6:45 p.m. and 7 p.m. outside the Yonge Street entrance, on the right side as you face the theatre. Belinda is very short and will be wearing a bright pink hat and bright pink glasses. Cell # (416) 879-7575 (text/call) for use on the day / time of performance ONLY. **Intermission Meetup Spot:** On the aisle beside Mezzanine G301 **PLEASE NOTE OUR ZERO-TOLERANCE [CELLPHONE POLICY](https://www.meetup.com/thumbs-up-theatre-toronto/events/243426512/)**

Come and lets talk Ubuntu talk. Come see the new Ubuntu 26.04. Bring your laptops and show off your favorite apps and your wallpaper. Got questions ? Bring them too ! Location and time: Monday 7pm May 25 2026 Bishop and Belchers pub Church and Bloor St E. 175 Bloor St E. Toronto, ON M4W 3T5 [(416) 591-2352](tel:+14165912352)

Can your agents scale without bankrupting your API quota or your compute budget? Join this session to explore a production-ready architecture that uses the LLM Council pattern, Google’s Agent Development Kit (ADK) for Java and Spring AI, all deployed on Cloud Run. And discover how replacing probabilistic reason-and-act (ReAct) loops with LLM Council enable goal-oriented action planning (GOAP) creates agents that are not only smarter but also significantly lighter and faster – making them the perfect workload for serverless execution. **About the venue** Free Times Cafe has bistro-style seating and a full food and drink menu. Please consider helping to support the venue by planning to have supper during the talk. **Speaker Bio** Dan Dobrin is an App Architect in Google Cloud, helping customer teams adopt modern AI technologies, cloud-native patterns, practices and technologies in GCP. Dan focuses on building GenAI applications, adopting AI coding assistance tooling with Gemini, Native Java Images, Spring AI, event-driven architectures, production-readiness and performance optimization. Prior to joining Google Cloud, he has built highly scalable, low-latency, frameworks for technology, security and financial services organizations.

Note: You may be removed from the attendance list if you've participated in the previous week's event. This allows for more people to experience this Meetup. Avengers put your costumes on and let’s go and save the world!
Well we can’t save the world (yet), but we aim to try to play a small part in the lives of those experiencing homelessness by making their day a bit better!
Description: Before the event the organizer will post a list in the comment section of the attendees and what they are responsible to bring (food/drink, kitchen supplies, cleaning supplies). We normally ask each attending member to bring approximately $15-20 worth of ingredients/supplies to our event. We will use the items to prepare and serve food/drink at The Meeting Place.
Timeline: We will meet on location at 11:00 am, with lunch served between 12:30-1:00 pm.
Membership Dues: Membership dues are $2.00 for the calendar year. Membership dues go towards paying for food/supplies incurred by no-shows. Membership dues are due at the first meetup of the year that you attend.
No Shows/Late Un-RSVP: We’re relying on members who RSVP to bring key ingredients for recipes! Please try your best to show-up or alternatively change your RSVP early so another member may fill the empty spot.
\*\*\* If you are on the waitlist, keep checking as you may be moved into attendance to replace someone. We will try to message you to confirm your attendance in advance.
Donations will be assigned before the event.

**[GrafanaCON Local](https://grafana.com/events/grafanacon-local/) Toronto - featuring the latest in AI Observability** Join us for a local edition of GrafanaCON — a recap of the keynote highlights combined with fresh voices from the Toronto community, all with an AI twist. We'll dig into actually useful uses of AI in observability, and how to add observability for AI workloads. Free to attend. Pizza and drinks provided. **Talks** 🎤 **Grafana 13: The road to AI-native observability** — Marylia Gutierrez, Principal Software Engineer @ Grafana Labs This talk will walk through Grafana 13 and the most impactful improvements across the platform. Learn how Grafana is continuing to invest in AI to become the first fully AI-native observability platform, and the default choice for agents. 🎤 **Scaling Grafana Assistant: Context, confidence, and AI observability** — Edward Qian, Staff Software Engineer @ Grafana Labs AI agents are only as powerful as the context they receive. In this session, we'll share lessons from building Grafana Assistant and offer practical tips for bringing the right context to get the most out of AI agents. 🎤 **AI tools to optimize your development workflow** — Cristiano Ventura, Senior Software Engineer @ Grafana Labs The way we write software has changed. AI systems read code, plan, execute shell commands, run tests, open PRs, and ship work end-to-end. This talk will showcase useful AI tools and concepts to improve your development workflow. **Agenda** 5:30 PM — Doors open, food + networking 6:00 PM — Talks begin \~8:00 PM — Networking continues 8:30 PM — Wrap *Note that by registering for this event you consent to related event & product communications from Grafana Labs and agree to our [code of conduct](https://grafana.com/events/events-code-of-conduct/).*

**DevOps Toronto is officially back, and we’re kicking off 2026 with an in-person meetup!** After a pause, we’re excited to bring the community together again for an evening of learning, connection, and great conversations 🤝 This is a great chance to reconnect and meet fellow DevOps, cloud, and platform engineering professionals in Toronto. **What to expect:** 🎤 **2 technical sessions** 1. Crawl, Walk, Scale: Building Maturity into your internal development platform by Jeferson pereira 2. Bring Your Own AI: Running LLM Models in Your Lab by Alexander Kharkevich 🤝 **Dedicated networking time** with the community 💡 Real-world insights, hands-on learnings, and meaningful discussions **📅 Event Details:** 📅 **Date:** 28th May 2026 ⏰ **Time:** 5:00 to 7:30 PM EST 📍 **Venue: 7th Floor, AWS Office,** **18 York St, Toronto, ON M5J 0B2, Canada** **🎤 Interested in speaking?** We’re actively looking for speakers to take the stage and share their experiences with the community. 👉 **Submit your talk here:** [https://sessionize.com/devops-toronto-2026/](https://sessionize.com/devops-toronto-2026/) ✨ Let’s bring the DevOps Toronto community back stronger than ever. 🔒 **Note:** This is a **community-driven event**. We respect your privacy and **will never share attendee information for any monetary or promotional purposes**.

### **Build Your First Streaming AI Personal Assistant** **2-Hour Hands-On In-Person Workshop** #### **Details** * 📅 **Date:** Wednesday, May 27, 2026 * 🕕 **Time:** 06:00 PM – 08:00 PM * 📍 **Location:** B-213, Davis Campus OR Virtual * 🔒 **Sheridan College students only** * 🎟️ **Free \| Limited spots — RSVP now\! AWS Cloud Club swag included\! 🚀** Ready to build modern, real-time streaming generative AI applications on AWS? In this fast-paced, hands-on session you'll: * Spin up a **Next.js frontend interface** * Write Infrastructure as Code (IaC) using the **AWS CDK** * Deploy an **AWS Lambda Function URL** configured for live HTTP response streaming * Connect **Amazon Bedrock with Amazon Nova 2 Lite**—AWS's newest model, auto-enabled out of the box with zero form approval wait times! * Get a live, public HTTPS URL of your running AI Assistant Bring your laptop - we'll provide the starter GitHub repo at the start. See you there - let's build and deploy!

**🎟 This is a paid event. Tickets must be purchased on Luma. Get yours:** [luma.com/techto-summer-social-may-27-2026](https://luma.com/techto-summer-social-may-27-2026) TechTO is BACK with its annual Summer Social at Bobby Bermuda's Sunset Bar. 🌊 **The setup** 600 people. Tacos. Drinks. Sunshine on Toronto's waterfront. One of the most coveted outdoor venues in the city. Need we say more? 🤝 **The crowd** Founders, operators, investors, and builders from across Canada's tech scene - all in one place, all in a good mood. This is the event where real connections get made. 🌮 **What's included** Every ticket comes with food and one drink (alcoholic or non-alcoholic). Just show up and make it happen. 📍 Bobby Bermuda's Sunset Bar (formerly The Slip), 235 Queens Quay W, Toronto 📅 Wednesday, May 27, 2026 · 6:00 PM – 10:00 PM

**Important time note:** Please plan on arriving between 5:30 and 6:00 as the elevators lock after 6 and you'll need to message us and we'll need to come get you. The building address is 4450 Bridge Park The entrance is 6620 Mooney St, Suite 400 You will need to scan your ID at the door to get a visitor badge. **Abstract** Like it or not, AI agents are now capable of turning a quickly written paragraph of requirements into a pull request that is ready to be integrated into real-world production applications and it's now our responsibility to make sure AI doesn't go rogue and take down prod - or corrupt our data by misunderstanding the requirements or our existing schemas. In this session we'll explore strategies to protect our codebases through unit and integration testing, documentation, and code review along with additional ways of providing context and guard rails to our AI agents as they carry out the work we've assigned them to do. By the time we're done, you'll have a firm grasp of the problem and understand some helpful options for protecting your codebase from vibe coding mishaps getting YOLOed into prod. **YouTube Link** TBD

## Candle Making Night at The Arcane Foundry \| Design Your Own Custom Candle **SPECIAL PROMOTION**: Buy 3 and get 1 Free! Step into The Arcane Foundry and create your own custom candle from start to finish. This is a laid back, hands-on experience where **you’ll blend fragrances, choose your vessel, and pour your own candle using 100% soy wax**. Whether you’re coming solo or with friends, it’s designed to be simple, creative, and a good time. We’ll walk you through the entire process, from picking your scents to choosing between a traditional cotton wick or a crackling wood wick. You can go with one fragrance or mix your own blend to create something completely unique**. No experience needed**, just show up and we’ll handle the rest. While your candle sets, feel free to hang out, play a game, explore the shop, or just relax and talk. Drinks and snacks are available, and the atmosphere leans into the **fantasy**, **dark academia**, and **gothic horror** vibe The Arcane Foundry is known for. Learn More: [Candle Making in Columbus, Ohio at The Arcane Foundry](https://thearcanefoundry.com/candle-making/) *** ### What to Expect: * Guided candle making experience * Choose your own vessel, wax, wick, and fragrance * 100% soy wax candles * Optional drinks and snacks * Time to relax while your candle cools *** ### Important Notes: * Please arrive on time so we can start together * Candles will need time to set before taking home * This is a beginner-friendly event *** ### RSVP Required Reserve your spot on Meetup to lock in your seat. **Candle Making** (includes vessel, your choice of wick, wax, scented oil, labels and lids) 5oz Glass Jars $15 8oz Candle Tins $25 12oz Glass Candles $35 12oz Amber Jars $40 16 oz Skull or Jack o Lantern Candle Mugs $65 (Limited Edition!) **All materials included. You just bring yourself (and your drink of choice).** **Payments accepted:** * Credit Card * Venmo: @Daclaud-Lee * Cashapp: $DaclaudL

PLEASE NOTE!!! This event will be In-Person for our very 1st Improving collab! If you know the [Columbus Unity group](https://www.meetup.com/columbus-unity-user-group/) location, we'll be at the same place. This is our 1st event and are doing a soft launch with limited attendance. 1st come 1st serve. If you want to be there and we fill up, please email me at [info@thecogg.com](mailto:info@thecogg.com) and I'll be in touch. All street parking is free on Sundays but you can also pay to park in any of the local garages. See image of [parking map here](https://drive.google.com/file/d/1Mr9_LFIggbs-0_Zd3AJTGNqEhgMf2TzQ/view?usp=sharing). \-\-\- On the last Sunday of the month, we're having our usual end-of-the-month social gathering with our GameDev Meetup meeting. There will be announcements and presentations followed by some social networking Let's continue the conversations with good vibes and friends. All are welcomed from all ages and backgrounds to this public event. If we can, we'll be streaming or uploading the video later via our COGG YouTube channel here: [https://www.youtube.com/@TheCOGG/streams](https://www.youtube.com/@TheCOGG/streams) (Also please do subscribe if you have not done so!) No game development experience required! If you are interested in doing a 20 minute game development related presentation, please fill out our form online here: [https://goo.gl/forms/lVdTJZiNJewlPJuj1](https://goo.gl/forms/lVdTJZiNJewlPJuj1) Or e-mail us at info@thecogg.com with the following: Your Name, Company/Affiliation, Name of Your Game/Topic, Description, Tech Needs, and Your Contact. Be sure to check out our Discord for real time news updates: [https://discord.gg/NrBhuNQ](https://discord.gg/NrBhuNQ)

Couldn't make Knowledge? Or want to debrief the dancing robots or Autonomous Workforce? Join us for a Knowledge '26 recap, insights sharing, a couple rounds of golf, and fun at Topgolf. As always, drinks and food will be provided. More details to come — mark your calendar, RSVP, and save your spot today!

Our monthly PHP meetup. A virtual shindig courtesy of Zoom. Check back here for the details around 6:15 pm