June: Building Event Based Systems on AWS

Welcome to the June 2025 edition of AWS User Group Leeds. We're at Accenture Next Gen Engineering.

Chris Dobson: Streamlining an Event-Driven Architecture: A real world transformation

If we are not careful as an event driven architecture matures it can evolve into something resembling the well documented ‘big ball of mud’.

This talk will look at how Chris' team has been transforming a production EDA. It will show how a sparsely documented set of AWS SNS topics used to publish and consume cross-domain events have been transformed into an architecture exhibiting discoverability, governance and observability while continuing to run in production without any data loss.

Damien Jones: Step On It! Rapid Event-Based AWS Cost Control With Step Functions

Managing cloud costs effectively isn't just about cutting expenses; it's about building smart, adaptable systems that respond to events in real time. In this talk, we'll explore how event-based architectures can transform how you monitor, manage and optimise cloud spend, spotlighting AWS services like Step Functions, CloudTrail and EventBridge.

Schedule (subject to timings)
17:45 - 18:00: Doors open - turn up, meet people, grab a drink.
18:00 - 18:15: Pizza arrives, more time for people to turn up
18:15 - 18:20: Intro
18:20: Stream-Lining an Event-Driven Architecture - Chris Dobson
19:15-ish: break time - an opportunity to chat, grab a drink, etc
19:30-ish: Step On It! Rapid Event-Based AWS Cost Control With Step Functions - Damien Jones
20:30 onwards: Continue the conversation over drinks at the Editor's Draft

Where
Next Gen Engineering,
Aspley House
https://maps.app.goo.gl/ZD1eFPfcASxYDPxU6

Ring the intercom when you arrive, looking for Accenture on the 2nd floor.

Food and Drink
We’ll be providing a range of drinks, both alcoholic and non-alcoholic, at the venue, from Accenture Next Gen Engineering, our sponsors for this event.

Food will be in the form of pizza - please let us know if you have any specific dietary requirements prior to the day and we will endeavour to meet your needs.

Code of Conduct
Like a large number of other communities, we have an anti harassment policy and code of conduct, in order to support the inclusive nature of our events. Please view here. It is necessary for all attendees, speakers, sponsors and volunteers at any AWS User Group Leeds event to agree with the code of conduct.

Helping with diversity and inclusivity
The organising team for AWS User Group Leeds are keen to promote diversity and inclusivity, in terms of speakers, how events are run, and the composition of the organising team. If you would like to contribute to this aim, particularly if you think you have experiences that you might not consider to be typical for the majority of the tech community, we would be really excited to talk with you at the event.