AI has made it faster than ever to deliver working code. But production is different.
Prompting your way to a prototype can take an afternoon. But production is where the real work starts; performance bottlenecks creep in, edge cases pile up, and the app you shipped stops looking like the one you demoed.
Join us, AG Grid, and guest speakers from GitHub and beyond for a day of honest conversations about what actually works once the demo is over.
When
Tuesday, 19 May 2026
- 08:30 – Doors open
- 09:30 – Talks begin
- 17:00 – Networking reception
- 20:00 – Close
Agenda
Fifteen sessions across one day, from opening coffee to the evening reception.
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08:30 – 09:30
Registration and coffee
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09:30 – 09:45
Welcome
15 minOpening remarks to set the theme for the day: building with tools you can trust.
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09:45 – 10:15
Opening keynote
30 minJohn Masterson & Mats Bryntse
-
10:15 – 10:45
Coffee break
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10:45 – 11:15
Codebase design for the agent era
30 minStephen Cooper, AG Grid
As AI agents become part of the development workflow, codebase structure and well-designed system prompts matter more than ever. A look at how we’re approaching this in the AG Grid and AG Charts codebases.
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11:15 – 11:45
One-click agentic SDLC
30 minMats Bryntse, Bryntum
A demo of a headless Claude workflow, built by Bryntum CEO Mats, that turns GitHub issues into mergeable PRs – with agents doing the work and a custom Kanban UI keeping things in check.
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11:45 – 13:00
Lunch and product demos
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13:00 – 13:30
Debugging CSS performance with AI
30 minBernie Sumption, AG Grid
CSS performance issues can be subtle and time-consuming. How to guide AI to uncover bugs without needing to learn the intricacies of CSS rendering internals.
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13:30 – 14:00
AI in AG Studio
30 minJosh Hobson, AG Grid
How do you build a dashboard you can’t see? A behind-the-scenes look at AG Studio’s multi-agent architecture and the client-side tools that let any LLM build reports it otherwise couldn’t.
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14:00 – 14:30
Customer showcase
30 minSpeaker to be announced
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14:30 – 15:00
Coffee break
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15:00 – 15:30
Product roadmap
30 minJohan Isaksson & Adam Wang
A detailed look at what’s coming next across the Bryntum and AG Grid suites.
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15:30 – 16:15
Panel discussion
45 minPanellists to be announced
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16:15 – 16:45
Vibe coding as a maker
30 minMatt Webb, Inanimate
Matt will show his vibe coding experiments, from his AI clock to an app that points to the centre of the galaxy, and share some learnings from building hardware at his startup, Inanimate. Then we ask: what are the limits of vibing and agentic coding? And how might we create libraries that agents love?
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17:00 – 20:00
Networking reception
3 hrsDrinks, food, and conversation to close the day.
Speakers
A line-up of engineers and product people who work on this stuff every day – plus a few friendly faces from the wider web.
Matt Webb
Co-founder, Inanimate
Matt is co-founder of Inanimate, consumer hardware bringing agents into the real world. He has consulted with Google’s AI research group, run startup accelerators with R/GA Ventures, and was CEO and co-founder of the design studio BERG, which invented some of the world’s first internet-connected consumer products (including the Little Printer, now in the New York MoMA). Co-author of Mind Hacks (O’Reilly, 2004). He has blogged at interconnected.org since 2000 and lives in London.
Stephen Cooper
Team Lead, AG Grid
Stephen is the Team Lead for AG Grid and loves sharing practical, experience-based tips from years in the codebase. He’s gone deep into grid performance and framework integrations, and has spent more time than he’d like profiling render cycles. Outside work, life revolves around family – four kids and two dogs – and he’s happiest when the whole crew is out exploring together.
Maggie Appleton
Staff Research Engineer, GitHub
Maggie is a Staff Research Engineer at GitHub, where she works on tools for thinking, writing, and building with code. With a background in anthropology, she’s known for visual essays that explore how developers understand systems, languages, and ideas. She’s a strong advocate for “digital gardens” over traditional publishing, and spends her time mapping how knowledge grows on the web.
Mats Bryntse
Founder & CEO, Bryntum
Mats is the founder and CEO of Bryntum, where he and his team build advanced scheduling and project planning tools for modern web apps. For the past 15 years he has obsessed over JavaScript performance, developer experience, and making complex UIs feel simple. He used to enjoy chess, badminton, and independent thought – until Claude entered his life and optimized those away.
Bernie Sumption
Engineer, AG Grid
Bernie is an engineer at AG Grid specialising in theming. “The other engineers make it work fast and well – I make it look pretty,” he likes to say. Outside work he goes hiking, plays with his kids, and once made a tweeting cat flap that has 10x more social media followers than he does.
Josh Hobson
Developer, AG Grid
Josh is a developer at AG Grid, where he’s been building AG Studio – a new dashboard library with multi-agent AI baked in. A mathematician by training and a maker by instinct, he has a particular love for developer tooling, type systems, and intelligent interfaces. Outside work, Josh can be found tinkering with 3D printers, ski touring in the Alps, or out on long walks with his dog.
Adam Wang
AG Studio Product Lead, AG Grid
Adam is the AG Studio Product Lead at AG Grid, with around 10 years of experience in product management across various disciplines. He previously worked on AG Grid Integrated Charts before focusing on AG Studio. He enjoys the creative process of product management and is keen to solve problems by truly understanding user needs. Outside work he’s a spin instructor with a fire playlist, and collects coloured vinyl.
Johan Isaksson
Head of Engineering, Bryntum
Johan is responsible for architecture, gate-keeping, performance, and styling across all Bryntum products. When not reviewing pull requests, recording performance profiles, or tweaking CSS, he enjoys watching hockey and playing floorball.
John Masterson
CEO, AG Grid
John is the CEO of AG Grid, which he first joined in 2016 as employee number two. After a detour as CTO of a London health-tech startup, he returned in 2020 and stepped into the CEO role in 2024. He’s spent fifteen years building software and leading engineering teams, and is determined to keep AG Grid the first choice for JavaScript developers. Outside work, John can be found on his bike, in his headphones, or picking up a guitar.
Phil Hawksworth
Event MC
With a passion for browser technologies and the empowering properties of the web, Phil loves seeking out ingenuity and simplicity – especially where over-engineering is common. After 25 years building web applications for companies such as Google, Apple, Nike, R/GA, and the London Stock Exchange, he has worked in Developer Experience at Netlify and Deno.
The venue
IET London at 2 Savoy Place is a Grade II-listed building on the Thames, home to the Institution of Engineering and Technology. It’s a fitting setting for a day of talks about the craft of building and a beautiful place to spend an evening afterwards.
