Karl Holt

Developer

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Worked at Dyalog Ltd from February 2024 to March 2025
Karl Holt

Role Summary

Karl develops tools written in APL. He is also involved with migration to Dyalog from other APL systems.

Biography

Karl’s excitement for coding started in school, where he specialised in mathematics and physics. For these courses, his school used a program called Maple , which has its own maths-inspired language. This helped to shape Karl’s understanding of programming, as he could build functions that would give him an answer instantly instead of having to spend time performing calculations with a pen and paper.

When deciding which subject to study at university, Karl was conflicted between mathematics and computer science, but decided to choose computer science based on the reputaion of the course at his chosen university (Aalborg university). At university, he was able to combine theory-heavy classes with projects in which he could use programming to implement the theory he learned. He moved to Aarhus university for a Master’s degree, but decided not to continue with it after discovering the University’s old fashioned practices. Instead, after a short job search, he found a role with Dyalog Ltd. As a perfectionist who always searches for the best solutions, Karl finds working with APL is a recipe for both immense work/life satisfaction and disaster! Karl is a mix between an introvert and an extrovert – he is comfortable being the life of the party or sitting in a corner playing chess.

In April we hosted DYNA26, our latest Dyalog North America user meeting. We returned to midtown Manhattan for a day of presentations, demonstrations, and... Read
DYNA Fall 2025 brought together APL enthusiasts, customers, and Dyalog Ltd staff for two days of presentations and workshops in New York City. Attendance... Read
A year passes quickly, especially when it’s your first year with a new company! Neil has now been our “JavaScript guy” in the Tools group for a full trip... Read
Migrating APL+Win Applications

Migrating APL+Win Applications

Dyalog Ltd has been engaged to port an APL+Win application to Dyalog. An important part of the project is the creation of open-source tools that will be made available free-of-charge for similar migrations. These include tools to: - move APL+Win sour...View

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Meet the Dyalog Team

We promote a culture where innovation, fun, pride, and acceptance is part of our daily life. We come from a variety of backgrounds, and our diversity enhances our creativity.

We’re a small team spread across half a dozen countries, united by a shared belief that powerful software doesn’t have to be complicated. A lot of us have been here for years, some for decades, because there’s still no shortage of interesting problems to solve.

Andy Shiers
Andy
Chief Operations Officer
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Jason Rivers
Jason
IT Manager
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Richard Smith
Richard
Development Manager
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Bjørn Christensen
Bjørn
Developer
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