This is an update to a February post in which we rounded up all recent Apple hires pertinent to the development of the upcoming iWatch. This post includes the addition of several new hires and experts, including a pair of key Nike FuelBand hardware engineers, and the new hires are labeled with italics.

Apple has been developing a sensor-laden, fitness- and medical-focused wearable computer as indicated by several notable recent hires and information we have received from sources. The device will have a focus on both fashion and exercise as Apple has been testing the device with key professional athletes. We’re expecting the product to be announced in October of this year and ship by the holiday season. As the  launch of the “iWatch” approaches, we have compiled an up-to-date list (into categories of leadership, fashion, fitness, and health) of all known and pertinent recent Apple hires to provide a clearer picture of what Apple’s future wearable technologies could offer to consumers…

Leadership:

While Apple has several rank-and-file hardware engineers and software developers working on all of the company’s various projects, Apple’s leadership team and engineering managers make many of the decisions regarding which products to ship, when to ship them, and which features should be included. Besides Apple CEO Tim Cook and his executive team (made up of the likes of Jony Ive, Craig Federighi, Phil Schiller, and Eddy Cue), Apple has several high-ranking managers and executives guiding the iWatch project, according to our own reporting and claims from various other publications.

Jeff Williams (Senior VP, Operations):

Now that Tim Cook leads Apple as CEO, most of the tasks relating to Apple’s supply chain, manufacturing, and operations have fallen in the hands of Jeff Williams. Instrumental in the launch of both the original iPhone and iPad, Williams is the most senior Apple executive directly managing Apple’s wearable computing projects.

As we noted last summer, Williams is in charge of Apple’s special projects groups. Prior to last summer, former Apple Hardware Engineering lead Bob Mansfield ran the iWatch group, but Williams took charge following Mansfield’s surprise role reduction last year.

William’s deep involvement in the project has also been confirmed on the U.S. Food and Drug Administration’s (FDA) website, which indicated that Williams attended a meeting with FDA officials in regards to mobile medical applications.

Known as an “operations whiz,” Williams gained fame within Apple and on Wall Street for his ability to improve Apple’s shipment processes, foster relationships with oversees technology component manufacturers, tighten Apple’s supply chain, and improve Apple’s supplier responsibility initiatives.

But as Williams explains in his video about the development of the new Mac Pro, “manufacturing and design” are “inextricably linked” at Apple. Running operations for all of Apple’s products, Williams clearly has the know how for leading the manufacturing of many different types of technologies. Apple could create all the products in the world in its “black labs,” but that means nothing unless Apple can get the products into the hands of millions of consumers.

Bud Tribble (VP, Software Technology):

Bud Tribble (pictured right) is known as one of Apple’s first employees, having worked on the Mac since its earliest days. As iOS and OS X have become more closely linked, Tribble is responsible for many of the underlying technologies of both operating systems. Tribble joined Williams in last year’s Apple meeting with the FDA, and Tribble has also testified on Apple’s behalf in government proceedings related to Apple’s software. With his vast industry and software knowledge, Tribble is likely contributing immensely to the underlying software technologies found in Apple’s upcoming wearable device. Tribble also has degrees in medical fields, making his experience critical for the health-infused elements of future Apple devices.

Bob Mansfield (Special Projects):

Bob Mansfield worked on several Apple hardware projects over the past decade, including many versions of the iPad, MacBook Air, and iMac. He is known as being one of the best engineering managers in the world, and multiple sources and profiles have indicated that Mansfield had been wholly invested in the iWatch project before he surprisingly left Apple’s executive team last summer. It is not entirely clear if Mansfield is still working on the project, but the latest word from Apple is that Mansfield is working on “special projects” while reporting to Tim Cook.

James Foster: (Senior Director, Engineering):

James Foster (pictured left) is an experienced hardware project manager and one of the lead managers for the hardware of Apple’s upcoming wearable device. Foster’s leadership is evidenced by his experience as co-founder and former CEO of XMOS, a chip design firm. Foster’s experience in miniaturization is critical in the development of wearable computers.

Kevin Lynch: (VP, Technology):

Kevin Lynch is directing the software engineering group for wearable products. The former Adobe Chief Technology Officer manages a large team of former iPod and iOS software engineers. Lynch has vast experience in software design, engineering, and management, making him a seasoned leader likely capable of guiding the software for future Apple devices. It is highly likely that he is working closely with Apple’s iOS engineering team (led by Craig Federighi) and interface design teams (led by Jony Ive).

Achim Pantfoerder: (Engineering Manager):

Pantfoerder’s name is certainly not as known as some of the aforementioned Apple employees, but his experience in wireless technologies and management are likely critical in the development of wearable devices. Pantfoerder’s involvement in the “iWatch” project was first reported by Bloomberg.

Fitness:

Indicating that Apple’s future wearable technologies will go head-to-head with the likes of offerings from Nike and Fitbit, Apple has hired a few world experts in fitness and behavior-tracking technologies.

As Nike winds down its development of FuelBand hardware, engineers from the team have begun seeking new jobs and landing at companies like Apple. We’ve discovered via LinkedIn that Apple has hired two key hardware engineers that worked on the FuelBand:

Ryan Bailey (Hardware Engineer):

Bailey, on his profile, explains his work on wearable devices like the FuelBand (and this sheds light on his obvious benefits for the iWatch’s development):

Jon Gale (Sensors Engineer):

Similarly, Jon Gale was involved with the FuelBand along with several other digital sport products at Nike. He is working on sensors at Apple. Here’s how Gale describes his work at Nike via LinkedIn:

Jay Blahnik:

Gale was in charge of firmware delivery for the FuelBand, and this expertise is likely critical to the iWatch’s development.

Primary responsibility is to define both the hardware and firmware architectures for Nike Digital Sport products. Additionally, I managed the development of product firmware through partner companies. Responsible for delivering firmware to validate the design in a manufacturing environment, define and implementation of custom protocols to interact with other components of the Nike ecosystem, and translate high-level product requirements into actionable, testable definitions. I personally owned the delivery of firmware for the Nike FuelBand product line.

Jay Blahnik is a world renown fitness expert who previously worked at Nike on the Fuel Band and several other fitness-oriented companies. Blahnik worked in the fitness industry as a motivational speaker and traveling trainer for multiple decades, but he left the industry last year to join Apple. His experience in the fitness world is invaluable to a company building a fitness and health-oriented wearable computer.

Roy Raymann (Scientist):

One of Apple’s most recent hires was sleep research expert Roy J.E.M Raymann, a scientist who officially left his role at Philips Research last month. With Apple focusing heavily on health and fitness features for iWatch, it’s no surprise that sleep quality appears to be a significant area of interest. There have already been a few hints that Apple has people researching sleep-related features for its upcoming iWatch—functionality that is at the heart of many fitness products like FitBit and a big trend for upcoming iOS-connected accessories.

We reported previously that Apple had hired a few employees for the iWatch team to analyze sleep patterns, but picking up Raymann shows just how serious the company is about the potential for sleep tracking-related features in a wearable. Notable experience on Raymann’s resume includes extensive research into non-pharmacological methods of altering sleep quality. Even more notable for the iWatch project is Raymann’s experience in wearable sensors and miniaturization of sensors related to tracking sleep and alertness activity.

Fashion:

While Apple is primed to pack in intense technologies and software into its future wearable devices, the company will need to ensure that the products are fashionable and able to be marketed to the masses. With the help of two fashion retail experts, Apple will likely be able to both produce attractive wearable devices and sell them in atmospheres perfect for allowing people to try on and experience the devices.

Patrick Pruniaux (iWatch Marketing):

One of the most notable hires thus far in Apple’s quest to build a fashionable smart watch is Patrick Pruniaux. Pruniaux joins Apple this week from Tag Heuer where he was Vice President of Sales and Retail. As an expert in watch marketing and retail, Pruniaux will likely work across Apple’s watch sales and marketing teams. Apple Senior VP of Worldwide Marketing Phil Schiller runs overall marketing for Apple, while former Yves St. Laurent CEO Paul Deneve (detailed below) has been working on marketing and retail sales tactics for the upcoming Apple wearable. The Apple wearable device will likely be a cross between a fashionable smart watch and a fitness band, and sources indicate that the device will include advanced sensors for tracking health and fitness data in addition to advanced mapping functionality.

Paul Deneve (Special Projects):

Lending credibility to the idea that Apple’s iWatch product could attempt to blur the lines between fashion and function is the appointment of high-profile Yves Saint Laurent CEO Paul Deneve back in July (pictured on the left above, next to friend of Jony Ive, Marc Newson). Apple picked up Deneve to work under Tim Cook on special projects, although apparently not in retail, and the executive’s experience in selling high end goods could come in handy if Apple plans to market iWatch as just as much a piece of fashion as technology. With Apple’s reputation of building high end products that are concerned with beauty and design aesthetics just as much as user friendliness, it’s not a stretch to imagine the iWatch team would seek input from an executive from one of the world’s premier fashion brands.

Angela Ahrendts (Incoming Senior VP, Retail):

While not exactly confirmed to be working on the iWatch project directly, Apple’s new Head of Retail is notable for a number of reasons. There have been a lot of question regarding whether or not a watch product from Apple would seek design inspiration from the high end fashion market, and Ahrendts, as former CEO of Burberry, is one of the world’s experts in both designing and selling fashion-related goods. Her expertise will be critical at the point of sale (both online and in-store) for future Apple wearable devices.

Ben Shaffer (Designer):

Speaking of fashion, another big hire from the fashion world this year came when Apple picked up top Nike design director Ben Shaffer. The designer has worked on the FuelBand wearable fitness device and other products that came out of Nike’s research lab. He was also the Studio Director of Nike’s R/D program, and his design experience could be key to the iWatch’s design. Nike’s research and development lab known as “Innovation Kitchen” also developed the Flyknit shoe technology under Shaffer’s leadership.

Health:

Health functionality will be key to the iWatch. Apple’s iOS 8 Health app can interpret hydration, blood pressure, glucose, pulse, and heart rate data. Indicating that Apple is fully invested in those plans, the company has hired several world-renowned scientists and medical device engineers over the past year.

Divya Nag (Medical Research):

Apple hired Divya Nag in April, a rising star in the medical device community, to its in-house medical technology team, according to sources with knowledge of the hire. Nag made her entry into the medical technology world earlier this decade by co-founding Stem Cell Theranostics, a company that focuses on technologies for testing new medicines for the market and how the drugs will affect patients. Nag also participated in the Stanford-based StartX, an “accelerator” for medical technology-focused startups. Nag was just recently recognized for her many accomplishments in the medical and science fields with the Forbes’ annual 30 Under 30 award. With experience in managing product launches, gaining FDA approval, and partnering up with existing healthcare industry behemoths, Nag could be the key to Apple being able to launch devices such as the upcoming iWatch.

Alexander Chan (Sensors):

Like his former and current boss Ravi Narasimhan (who is detailed below), Alexander Chan joined Apple’s medical sensor team from Vital Connect. Chan explains his work on medical devices on his LinkedIn profile:

His experience in field testing and clinical trials is critical as Apple prepares the device for the mass-market. Chan’s LinkedIn doesn’t list Apple as his employer on LinkedIn, but we can confirm that he does work at the Cupertino company.

Marcelo Lamego (Sensors):

Apple added Marcelo Lamego to its sensors team in January of this year. Prior to working at Apple, Lamego was the Chief Technology Officer of medical device firm Cercacor where he developed non-invasive sensors. Lamego shares additional background on his history via his LinkedIn profile:

With the several advanced sensors expected to be packed into the first iteration and future models of the iWatch, Lamego will be important in ensuring that the sensors remain non-invasive yet powerful.

Nima Ferdosi (Sensors):

Also joining Apple from Vital Connect is Nima Ferdosi. Ferdosi’s experience at Vital Connect includes work on “algorithms and firmware for embedded bio and motion sensors,” according to his LinkedIn profile. As the iWatch will be packed with various sensors, his work on embedding such sensors and connecting them to firmware will be important.

Ueyn Block (Scientist):

Block was a key engineering director at his former employer C8 MediSensors. We profiled his company’s work last year:

Block’s expertise in machine learning and interpreting data through skin is likely invaluable for Apple as it seeks to assist people in health-related ways and changing behavior with upcoming wearable devices.

[youtube http://www.youtube.com/watch?v=ftcPXSH4Iek]

Above is a video (featuring Block) about C8’s technology.

Nancy Dougherty (Hardware Engineer):

Nancy Dougherty, who joined Apple as a hardware engineer in late 2013, has worked with technology-based medical products since 2010 with Proteus Digital Health. Her work there included a health metric-reading wearable patch and ingestible, Bluetooth-connected smart pills for monitoring dosages and scheduling. Most recently, Dougherty worked as a hardware lead for Sano Intelligence, whose tagline reads ‘the API for the bloodstream,’ working on a wearable sensor system. Dougherty is also active in the Quantified Self community and has spoken out about the need for smarter sensors to create more robust and useful data.

Todd Whitehurst (Director, Hardware Development):

Dr. Todd Whitehurst joined Apple from Senseonics last summer. He was Senseonics’s Vice President of Hardware Engineering up until his departure. He ran the engineering team for a wireless, smartphone-connected body sensor. The company explains the technology:

His experience in medical hardware engineering as well as in medical device-connected software is likely key to the development of both iWatch hardware and the iOS 8 Health software.

Michael O’Reilly (Scientist):

Dr. O’Reilly, before joining Apple last summer, served as Executive Vice President for Medical Affairs and Chief Medical Officer for nearly five years at a company called Masimo. O’Reilly has been involved in the FDA meetings regarding future health related technologies at Apple.

[youtube http://www.youtube.com/watch?v=zvg6BJ2Ch-M]

At his previous employer, he worked on an iPhone application and hardware for sensing a human pulse. A video of his work is above.

Ravi Narashamian (Research and Development):

Ravi Narasimhan, an expert in biosensors and wireless communications, joined Apple’s research and development team at the end of 2013. He previously worked on biosensor technology R&D for Vital Connect, Inc. During his time at the firm, Narasimhan focused heavily on sensors for measuring respiration and activity levels and wearable medical devices. Aside from working with sensors and wearables, Narasimhan interestingly has a scientific background in working with LTE base stations and 802.11 Wi-Fi chipsets, including contributing toward the 802.11n standard. The combination of medical sensor and wireless expertise are valuable for the company’s upcoming device.

In addition to the hundreds of skilled hardware and software engineers already at Apple, this group of recent hires shows that the company is planning to enter the wearable fitness and health device market in a major way. With Apple openly posting a job listing related to testing fitness and health devices (and since removing it following our post this morning), the question is no longer if Apple is building a smart watch, but it instead becomes when will Apple introduce the product?

Michael Steeber, Jordan Kahn, and Zac Hall contributed to this article.