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John Ternus

Screen capture of John Ternus, Apple's SVP of hardware engineering, filmed outside an Apple store for the September 2025 iPhone Air event.
John Ternus, Apple’s SVP of hardware engineering, continues to take on more responsibility within the company.

John Ternus joined Apple in 2001 and steadily rose through the company’s product development ranks, building a reputation as a detail-oriented engineer and calm operator before becoming one of Apple’s most visible hardware leaders.

He worked on and later led teams responsible for major products across the lineup, including the iPhone, iPad, Mac and AirPods, and became known to the public through polished keynote presentations during Apple events.

In 2021, he was named Senior Vice President of Hardware Engineering, putting him in charge of nearly all of Apple’s core device engineering at a time when the company was transitioning Macs to Apple silicon and expanding its hardware ambitions.

Over the years, his role has grown beyond pure engineering execution, reflecting Apple’s trust in his ability to oversee complex, cross-functional product efforts. Most recently, reports indicate Apple expanded his responsibilities to include oversight of design, further elevating his influence inside the company and positioning him as one of the most prominent leaders in Apple’s current and future leadership structure.

Read Cult of Mac’s latest posts on John Ternus:

John Ternus takes big step toward replacing Tim Cook as Apple CEO

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John Ternus standing in the Observatory at Apple Park
John Ternus is now reportedly managing both Apple's product design and execution.
Photo: Apple

John Ternus, Apple’s head of hardware engineering, reportedly just added an even more critical role at the company, being put in charge of design for the first time.

The intent of the change might be to give Ternus the experience needed to someday become Apple CEO.

Today in Apple history: First M1 Macs usher in the wonderful world of Apple silicon

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The M1 MacBook Air, M1 MacBook Pro and M1 Mac mini.
The first three M1 Macs: the MacBook Air, MacBook Pro and Mac mini.
Image: Apple

November 17: Today in Apple history: M1 Macs usher in the wonderful world of Apple silicon

November 17, 2020: Apple releases the first three Macs powered by the company’s new M1 chip. The Apple silicon processor sparks a renaissance at Apple, with the excellent new computers surprising nearly everyone with their bold mix of power and efficiency.

The switch to Apple silicon could not have come soon enough for Apple. The era of Intel-powered Macs began promisingly enough, but went out with a long whimper. The stark contrast in Apple’s commitment to the platform, and the unbelievable value the new Mac models offered, made the Apple silicon era a golden age for the Mac.

Apple reshapes health, fitness and Apple Watch leadership as Jeff Williams nears retirement

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Jeff Williams at Apple Watch launch 2020
Jeff Williams retires from Apple later this year.
Screenshot: Apple

Apple is preparing for a major internal reorganization ahead of COO Jeff Williams’ retirement later this year. As part of the rejig, Eddy Cue, Apple’s senior vice president of services, will oversee the health and fitness team.

Meanwhile, leadership of the watchOS division will move to Craig Federighi, Apple’s head of software engineering.

Why this dark horse candidate could be Apple’s next CEO

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Cartoon of Apple's current executive team with Apple CEO Tim Cook in the foreground.
The most likely person to take over as Apple CEO when Tim Cook steps down is a dark horse candidate.
Photo: Apple/Grok

With the surprise retirement of Apple COO Jeff Williams on Tuesday, all bets are off concerning the next CEO of Apple.

Williams, a 27-year Apple veteran, was widely regarded as the likely next CEO of Apple when Tim Cook eventually steps down.

But with Williams out of the running, Apple senior vice presidents John Ternus or Craig Federighi are now seen as the most probable candidates for the top spot.

But I think it could be someone else entirely — and it’s a pick I haven’t seen anyone else make.

Here’s who I think might be the next CEO of Apple, and why.

Apple shifts robotics team to hardware as leadership shuffle continues

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Apple robotics team gets new leadership
This fanciful AI image may or may not approximate future Apple robotic products.
AI image: Grok

In another significant leadership reshuffle at Apple, a little-known robotics team will soon move from AI chief John Giannandrea’s oversight to John Ternus, Apple’s senior VP of Hardware Engineering, according to a new report Thursday.

This shift follows last month’s decision to remove Siri from Giannandrea’s responsibilities after concerns about execution on product development.

Soaked! Take a peek at how Apple tests iPhone water resistance.

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iPhone water testing
Watch as a water cannon blasts an iPhone.
Photo: Marques Brownlee

Popular tech influencer Marques Brownlee shared a series of posts on X (formerly Twitter) Wednesday from his visit to Apple labs that do durability testing like iPhone water testing. You’ve probably never seen iPhones this wet. And you’ve probably never subjected yours to such punishment.

Along the way, he fit in an interesting video chat with Apple hardware honcho John Ternus about product reliability versus repairability, below.

Siri’s ready for an AI upgrade [The CultCast]

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An image of the Siri logo with the words
When will Siri get that long-overdue brain transplant?
Image: Cult of Mac

This week on Cult of Mac’s podcast: With the many AI-powered features reportedly coming in iOS 18, a Siri revamp sounds possible — and promising! We talk about OpenAI’s startlingly good GPT-4o demos and wonder if Siri will ever amaze us like that.

Also on The CultCast:

  • Who will be Apple’s next CEO? Cupertino reportedly has a couple familiar faces on its short list.
  • New features in iOS 17.5 are … OK. However, some of the accessibility features coming later this year — including Vision Pro-style eye tracking for iPhone — look pretty incredible.
  • Those rumors of future folding iPhones just won’t stop.

Listen to this week’s episode of The CultCast in the Podcasts app or your favorite podcast app. (Be sure to subscribe and leave us a review if you like it!) Or watch the video live stream, embedded below.

Could John Ternus equal Tim Cook and Steve Jobs as Apple CEO?

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John Ternus, Apple senior vice president of Hardware Engineering
This might be Apple's next CEO. Does he have what it takes?
Screenshot: Apple

John Ternus, Apple’s senior vice president of hardware engineering, reportedly sits at the top of the list to step into Tim Cook’s shoes when the current Apple CEO steps down.

But the real question is, does Ternus have what it takes to fill a role that Steve Jobs once did so brilliantly?

Top Apple engineer moves to mysterious new project

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What is top Apple hardware engineer Dan Riccio up to now?
What is top Apple hardware engineer Dan Riccio up to now?
Photo: Apple

Dan Riccio, one of Apple’s top designers, is moving to a mysterious new role in Cupertino.

After joining Apple in 1998, Riccio worked on loads of groundbreaking products, from the first iMac to last year’s AirPods Max and the M1-powered Macs. Now, he’s become Apple’s “vice president of engineering.”

Going forward, Riccio says he will be “focusing all my time and energy at Apple on creating something new and wonderful that I couldn’t be more excited about,” according to a press release Monday.