MageTitans Groningen 2025

Eleven talks on one stage under the dome of DOT, from caching internals and Content Security Policy to design tokens and the busy-ness paradox. Mollie returned as headline sponsor and elgentos hosted a Hyvä Hackathon the day before.

Date

Friday 26 September 2025

Venue

DOT Groningen

Speakers

Jordy Scholing

Technical Customer Success, Google Developer Expert, co-owner RUMvision

Making sense of performance debugging in DevTools

Google has made a lot of changes to the performance panel in DevTools over the last one and a half years, and most developers have no idea they can use it this way. This talk shows how to use the panel so that fixing web performance issues gets easier and starts to make sense. Understanding something makes you more effective than just doing what you have been told.

David Lambauer

Founder and CEO of run_as_root, Mage-OS, Magento Association Documentation Committee

From Chaos to Clarity: How AI and Community Collaboration Are Reshaping Magento Documentation

Magento documentation is notoriously complex, especially for newcomers and non-technical users. David presents a new approach that combines community-driven structure with AI-assisted generation: how the Mage-OS Developer Docs were created using GPT and open-source tooling, the collaboration between Mage-OS and the Magento Association, and a preview of the new merchant documentation initiative.

Michiel Gerritsen

Founder of Control Alt Delete, MageTested.com and MageDispatch.com

Building the ideal Magento shop, from a developer's perspective

What if we could take a step back from all the constraints, the budgets, timelines and technical debt, to envision the ideal Magento webshop? A tour of the decisions around architecture, development practices, tools and technologies that could create an optimal experience for both the builder and the merchant.

Ivan Chepurnyi

Magento performance expert, speaker and trainer

Caching costs in Magento

Redis cache is the go-to set of crutches every developer reaches for when struggling with slow code. This talk sheds light on common misuses of Redis and why we should avoid using it for caching as much as we can: the real cost of caching in Magento, fixing the slow thing instead, and alternative compilation of layout and configuration.

Sean van Zuidam

Frontend developer at Hyvä, creator of FylgjaCSS

Design Tokens and Figma Lightning talk

Tired of the endless back-and-forth between design and development? Learn how to define and manage design tokens in Figma, integrate them with Tailwind CSS, and set up an automated workflow that syncs Figma designs directly with your codebase.

Leoni Sambell-Tielrooy

Independent e-commerce and online strategy consultant

How to Make Devs and E-Commerce Managers BFFs (or at Least Better Teammates) Lightning talk

Ever had a project manager drop a "quick win" on your backlog at 4:55 PM on a Friday? This talk breaks down how developers and e-commerce managers can work smarter together: connecting technical decisions to business impact, staying sane while priorities change, and turning everyday communication into collaboration.

Jeroen Boersma

Security officer at Hyvä, former co-owner of elgentos

CSP: Side effects of making the world a better place

Implementing Content Security Policies uncovers interesting side effects: headers that grow too large, and neat tricks that still allow XSS on Magento sites that disallow evaluated code. With examples of what the risks are and what is wrong with the default CSP implementation in Magento.

Ksenia Zvereva

Developer Relations lead at Mollie

Why am I so busy?

Why are we all so busy, and still feel like we are not doing enough? Not another talk about productivity hacks, but about the uncomfortable truths behind busyness: the illusion of productivity, the "yes" trap, urgency versus importance, and the subtraction mindset of people who are ruthless about what they do not do.

Mitchell de Roode

Senior software developer at elgentos

Magento End-to-end Testing with Playwright

Why you should be running tests, why Playwright, and how the elgentos testing suite simplifies the process, with a live introduction to both Playwright and the suite.

Marek Kubacak

15+ years in the Magento ecosystem, agency side and in-house

From Frustration to Fit: Changing the Magento Narrative from the Inside Lightning talk

After 15 years on the agency side, Marek moved in-house to a traditional B2B company and walked straight into the usual clichés: Magento is too complex, too slow, not the right fit. By stripping Magento down to its core and translating digital into language the team could relate to, they delivered a high-performing DTC channel.

Andreas von Studnitz

Architect and senior Magento developer at Hyvä, Magento Master 2019 and 2020

One year at Hyvä: Personal Insights and Lessons Learned Lightning talk

At MageTitans 2024 Andreas had just joined Hyvä and shared his reasons for making the move. One year later: did things turn out the way he expected, what challenges came up, and what surprising benefits appeared along the way? A personal reflection with insights into the inner workings of Hyvä.

Schedule

Friday 26 September 2025