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 recently, 100% written in APL+Win. Since January 2024 Alex has worked with Dyalog Ltd to convert METSIM® to Dyalog APL, and is continuing to develop his APL skills with Dyalog APL.

At DYNA Fall 2025

Alex will be presenting Lessons Learned when Converting from APL+Win to Dyalog APL on Monday 29 September at 1:30 PM.

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Other Speakers at DYNA Fall 2025

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

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

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

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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.