Speakers at DYNA Fall 2025

The DYNA Fall 2025 speakers include Dyalog Ltd staff and members of the wider APL community. Each brings their own perspective and experience, offering a look into current work, ideas, and developments in APL.

Aaron Hsu

Dyalog Ltd

Aaron is an advocate for a terse and minimal array programming style and has a background in academic functional programming. After being introduced to APL… Read more

Alex Holtzapple

Metsim International, LLC

Alex is an extractive metallurgist by trade, and a self-taught APL developer through his 18 years working with the application METSIM®, which was, until… Read more

Asher Harvey-Smith

Dyalog Ltd

Asher discovered APL while he was at university, and loves to make complicated algorithms neat and fast using array-oriented thinking. He spent two summers as… Read more

Brian Becker

Dyalog Ltd

Over the five decades that Brian has been working with APL, he has applied his expertise to develop APL applications across a wide spectrum of industries.… Read more

Diane Hymas

The APL Trust US

Diane retired from Mobil/ExxonMobil after a 40+ year career developing and deploying scientific production applications distributed worldwide. The vast… Read more

Holden Hoover

University of Waterloo

Holden is a Computer Engineering student at the University of Waterloo in Canada. He has been using APL for six years, and was the APL Forge winner in 2024… Read more

Josh David

Dyalog Ltd

Josh was exposed to Dyalog during an internship with The Carlisle Group. A graduate of The University of Scranton with a degree in Computer Science, he now… Read more

Mark Wolfson

BIG

Mark has been CTO at BIG, a service company in the jewellery industry, since 2006. He serves as designer, architect, and data specialist, overseeing a tech… Read more

Martina Crippa

Dyalog Ltd

While finishing her PhD in Computational Material Science, Martina discovered APL and pursued her interest by joining Dyalog Ltd. She has developed as strong… Read more

Morten Kromberg

Dyalog Ltd

Morten recently celebrated 20 years as CTO of Dyalog, after spending the preceding 15 years building up ideas for technical direction as a user of Dyalog –… Read more

Stefan Kruger

Dyalog Ltd

Stefan has spent 25 years building enterprise software for companies, both large and small. He’s written two books about learning APL from the perspective of a… Read more

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Register for DYNA Fall 2025

DYNA Fall 2025 is an in-person only event. Registration is essential to ensure we can accommodate all attendees comfortably and plan appropriate refreshments. Please note that lunch and refreshments during breaks are included on both days, but evening meals and accommodation are not.

Day 1 (presentations) is free to attend, Day 2 (workshops) is $250 for the whole day.

If you have any questions please contact us: dyna@dyalog.com

Registration for DYNA Fall 2025 closes at 11:59 PM UTC on Sunday 21st September 2025.