How did Niall Mac an tSionnaigh go from selling Christmas trees to CEO of SumUp? What’s his leadership style? And why is cash a thing of the past?

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Niall Mac an tSionnaigh, CEO of SumUp joins Adrian on this week’s episode of The Big Tech Show.

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How did Niall Mac an tSionnaigh go from selling Christmas trees to CEO of SumUp? What’s his leadership style? And why is cash a thing of the past?
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Niall Mac an tSionnaigh, CEO of SumUp joins Adrian on this week’s episode of The Big Tech Show.
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Irish Independent Tech Editor Adrian Weckler hosts this award-winning business podcast which dives deep into the biggest industry advances and tracks the key movers and shakers behind the innovation. From interviewing Big Tech CEOs to investigations into how tech affects our working lives, the show has become Ireland’s most listened-to technology podcast.

Every week we analyse the big tech issues, interv…

The Big Tech Show

How Kilmacud Crokes’ corner forward became CEO of payments giant Sumup 

Ireland’s list of global sporting champions is relatively short, which means that when a new one is minted then we like to celebrate their achievements with them. And while Excel spreadsheets is about as niche as e-sports get - there’s no doubt that the competition is heating up when it’s broadcast live from Las Vegas via ESPN. And this year, it looks like it's not just Excel’s logo that proudly wears green - as the title of Global Excel Champion 2025 was won by Ireland’s Diarmuid Early.


Early Rising - Ireland’s newly minted Excel world champion Diarmuid Early

Where is AI going and who is at the helm? What jobs might be in trouble and should Europe back down on its regulations? On The Big Tech Show this week, Adrian is joined by one of Ireland's most famous tech entrepreneurs Sean Blanchfield to hear about Jentic - his latest venture - and to hear how the age of AI is already up and running.

Where is AI going and who is at the helm? What jobs might be in trouble and should Europe back down on its regulations? On The Big Tech Show this week, Adrian is joined by one of Ireland's most famous tech entrepreneurs Sean Blanchfield to hear about Jentic - his latest venture - and to hear how the age of AI is already up and running.

How I Made It: Sean Blanchfield’s journey to the top of tech and his new AI startup, Jentic

Will we see a folding iPhone in 2026? Or what about better AI on Apple devices? Has the iPhone Air been a flop and will it be replaced?

Joining technology editor Adrian Weckler on the Big Tech Show is friend of the podcast Stuart Miles, tech expert and the founder of Squirrel.

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Will we see a folding iPhone in 2026? Or what about better AI on Apple devices? Has the iPhone Air been a flop and will it be replaced?
Joining technology editor Adrian Weckler on the Big Tech Show is friend of the podcast Stuart Miles, tech expert and the founder of Squirrel.
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How Kilmacud Crokes’ corner forward became CEO of payments giant Sumup

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