Apple Engineering Leader Handling 5G Efforts Leaves Company

Rubén Caballero, a hardware engineering executive at Apple who worked with suppliers on modem hardware, recently left the company, reports The Information.

Caballero's departure comes just after Apple settled its lawsuit with Qualcomm and inked a deal that will see Qualcomm supplying chips for future Apple devices, including the 5G chips Apple will need for its 2020 iPhones.

qualcommx55
Caballero joined Apple back in 2005, and his name has been included on hundreds of Apple patents related to wireless technologies. Caballero is a well-known part of Apple's antenna engineering group, gaining public recognition following the "Antennagate" situation that impacted the iPhone 4.

A person familiar with Caballero's work at Apple told The Information that he had been responsible for "leading Apple's charge into 5G." Caballero's email address is no longer valid, his phone number is no longer active, and he does not appear in Apple's internal directory.

There is no word on why Caballero left the company, but Apple has been restructuring some of its chip teams. Apple's modem engineering efforts were put under chipmaking chief Johny Srouji back in February. Caballero and Apple both declined to comment on his departure.

Apple is planning to release its first 5G iPhone in 2020 and while the launch of the device is still more than a year away, Apple is already working on the future ‌iPhone‌ and ironing out technical details.

Apple will use Qualcomm chips for its first 5G iPhones, and may also be planning to source some chips from Samsung. In the future, Apple is planning to use its own custom-designed modem chips, but Apple-designed modems won't be ready for "another few years."

Popular Stories

iphone 17 models

No iPhone 18 Launch This Year, Reports Suggest

Thursday January 1, 2026 8:43 am PST by
Apple is not expected to release a standard iPhone 18 model this year, according to a growing number of reports that suggest the company is planning a significant change to its long-standing annual iPhone launch cycle. Despite the immense success of the iPhone 17 in 2025, the iPhone 18 is not expected to arrive until the spring of 2027, leaving the iPhone 17 in the lineup as the latest...
duolingo ad live activity

Duolingo Used iPhone's Dynamic Island to Display Ads, Violating Apple Design Guidelines

Friday January 2, 2026 1:36 pm PST by
Language learning app Duolingo has apparently been using the iPhone's Live Activity feature to display ads on the Lock Screen and the Dynamic Island, which violates Apple's design guidelines. According to multiple reports on Reddit, the Duolingo app has been displaying an ad for a "Super offer," which is Duolingo's paid subscription option. Apple's guidelines for Live Activity state that...
Low Cost A18 Pro MacBook Feature Pink

Apple's 2026 Low-Cost A18 Pro MacBook: What We Know So Far

Friday January 2, 2026 4:33 pm PST by
Apple is planning to release a low-cost MacBook in 2026, which will apparently compete with more affordable Chromebooks and Windows PCs. Apple's most affordable Mac right now is the $999 MacBook Air, and the upcoming low-cost MacBook is expected to be cheaper. Here's what we know about the low-cost MacBook so far. Size Rumors suggest the low-cost MacBook will have a display that's around 13 ...
govee floor lamp

CES 2026: Govee Announces New Matter-Connected Ceiling and Floor Lights

Sunday January 4, 2026 5:00 am PST by
Govee today introduced three new HomeKit-compatible lighting products, including the Govee Floor Lamp 3, the Govee Ceiling Light Ultra, and the Govee Sky Ceiling Light. The Govee Floor Lamp 3 is the successor to the Floor Lamp 2, and it offers Matter integration with the option to connect to HomeKit. The Floor Lamp 3 offers an upgraded LuminBlend+ lighting system that can reproduce 281...
Belkin 25W Battery magnetic

CES 2026: Belkin Announces Magnetic Ring Power Bank, Modular Dock, and More

Sunday January 4, 2026 3:02 pm PST by
Belkin today announced a range of new charging and connectivity accessories at CES 2026, expanding its portfolio of products aimed at Apple device users. UltraCharge Pro Power Bank 10K with Magnetic Ring The lineup includes new Qi2 and Qi2.2 wireless chargers, magnetic power banks, a high-capacity laptop battery, and USB-C productivity accessories, with an emphasis on higher charging...
airpods pro 3 glitter

AirPods New Year's Deals Include Up to $99 Off AirPods Max, AirPods Pro 3, and AirPods 4

Sunday January 4, 2026 8:04 am PST by
Now that the calendar has flipped over into January, steep discounts on popular Apple products have become more rare after the holidays. However, if you didn't get a new pair of AirPods recently and are looking for a model on sale, Amazon does have a few solid second-best prices this week. Note: MacRumors is an affiliate partner with some of these vendors. When you click a link and make a...
Low Cost MacBook Feature A18 Pro

Low-Price 12.9-Inch MacBook With A18 Pro Chip Reportedly Launching Early This Year

Friday January 2, 2026 9:08 am PST by
Apple plans to introduce a 12.9-inch MacBook in spring 2026, according to TrendForce. In a press release this week, the Taiwanese research firm said this MacBook will be aimed at the entry-level to mid-range market, with "competitive pricing." TrendForce did not share any further details about this MacBook, but the information that it shared lines up with several rumors about a more...
Clicks Communicator Feature

'Clicks Communicator' Unveiled — Will You Carry This With Your iPhone?

Friday January 2, 2026 6:35 am PST by
The company behind the BlackBerry-like Clicks Keyboard accessory for the iPhone today unveiled a new Android 16 smartphone called the Clicks Communicator. The purpose-built device is designed to be used as a second phone alongside your iPhone, with the intended focus being communication over content consumption. It runs a custom Android launcher that offers a curated selection of messaging...

Top Rated Comments

Blackstick Avatar
87 months ago
I try not to read the tea leaves... he's been there 13 years as an executive, I made tens of thousands just with average, retail Mac Genius ESPP... this dude could buy an island with his grants ... if he's in his 50s he has 20-30 good years of health left, I'd use them.
Score: 22 Votes (Like | Disagree)
hermes16 Avatar
87 months ago
Is it me or is there quite a few execs and other high talent individuals leaving all at once?

https://www.macrumors.com/2019/04/25/apple-industrial-design-team-employee-changes/
Score: 14 Votes (Like | Disagree)
melgross Avatar
87 months ago
Remember that Apple just hired Intel’s chief of 5G design. Did they do that because Caballero was leaving, or did Caballero leave because they hired that guy?
Score: 11 Votes (Like | Disagree)
JPack Avatar
87 months ago
Probably left for Qualcomm to get a bigger paycheck. Some engineers also prefer to work for companies more geared towards pure R&D. Now that Qualcomm has secured income from Apple, they're probably in an even better position to poach engineers.
Score: 5 Votes (Like | Disagree)
Baymowe335 Avatar
87 months ago
Laughing at all the people who think the only reason to leave is you're fed up.
Score: 5 Votes (Like | Disagree)
ElectricPotato Avatar
87 months ago
I wonder what Qualcomm's secret recipe is?
Pursue modem excellence as if the company depended on it instead of dabbling like a dilettante.
Score: 3 Votes (Like | Disagree)