Meet the neighbors…

Janie Clayton

Janie Clayton is an author and independent iOS developer. Janie is the author on several books on iOS and Swift development, including the Metal Programming Guide. She records her journey down the rabbit hole on her personal blog at Janie lives outside of Madison, Wisconsin with her attempted grumble of pugs and multitude of programming books.

Session: ARKit “Unified”

Dave DeLong

A seven-year veteran of Apple, Dave DeLong is an accomplished iOS engineer with a passion for teaching, and hacking the Objective-C runtime. During his time at Apple, he worked on the UIKit framework, Developer Evangelism, and Apple Maps. He currently works on the Product Experience team at Snap, Inc.

Dave, his family, and his large collection of bowties live near Salt Lake City, where he’s an active member of the local developer community. He can often be found on Twitter teaching developers about all the ways that calendrical calculations can go wrong and pontificating on the virtues of eating chocolate with peanut butter.

Session: A Better MVC

James Dempsey

James Dempsey is a fifteen-year Apple veteran gone indie. At Apple, he was an evangelist, technical trainer, curriculum manager, and software engineer, working on Aperture, iOS, and macOS releases Leopard through Lion. James recently set back out on his own after working to build a cloud computer for humankind’s information at Upthere. He is also the frontman of James Dempsey and the Breakpoints, a band that performs humorous original songs about technical topics. Their debut album Backtrace topped the iTunes comedy charts in the US, UK, and Canada, and reached #5 on the Billboard comedy album chart.

Session: XCConfig Files: An Out-Of-Project-File Experience For Build Settings

Brad Ellis

Brad Ellis is a developer, consultant, author, and part-time stay at home dad living in Northern California. He founded Bookhouse Software in 2009, where he builds iOS applications for prominent clients around the US and advises a number of Silicon Valley startups. Prior to life on his own, Matt spent eight years at Apple helping developers navigate the Mac OS X and iPhone SDKs.

When he isn’t coding, writing, changing diapers, or doing dishes, Matt drives cars around many of California’s famous racetracks.

Panel: 10 Years with AppStore and the iOS SDK

Brad Ellis

Brad Ellis is a product designer and an Apple Design Award winner who has received two Webbys for app design. His Tall West clients include Airbnb, Facebook, and Target among others.

With Target, he contracted as design lead of their mobile app team for three years. During that time he redesigned the app, resulting in a 5x revenue increase year over year. He also designed Target’s watch app, which was presented onstage in an Apple Keynote. With Airbnb, he helped lay the groundwork for Experiences, and was part of the team that re-architected the signup flow.

Brad began his career as an early design manager for Square. He designed the Square logo, and his hands are pictured holding the first generation product on the original packaging. He also designed the current iPad register app, which has been in use for seven years.

In 2012, Brad co-founded Pacific Helm, a design consultancy whose clients included Sony, Pantone, Disney Imagineering, ESPN, and Zuckerberg Media among others.

Brad speaks on custom interface design, and specializes in unique interactions and animation prototypes.

Session: Make Accessibility Work for You

Kristina Fox 

Kristina Fox is an iOS Software Engineer at Intuit, where she works on the QuickBooks Self-Employed app. She regularly writes tutorials and technical commentary on iOS and watchOS development on her website As an international speaker, she has presented on topics ranging from Apple Watch development to using technical writing to advance engineering skills. Her past speaking events include talks at AltConf, try! Swift NYC, iOSDevUK and many more. Kristina’s main goal in life is to consume as much guacamole as she can. In her spare time she also enjoys watching cat videos and Twittering.

Session: Xcode Survival Guide

David Hart

David Hart is the Lead iOS Developer at Atipik, a mobile development shop in Geneva, Switzerland. His day job working on Apple’s platforms and his passion for programming languages have converged into contributions to the Swift compiler, Swift Package Manager and participation to Swift Evolution.

Session: Contributing to the Swift Compiler

Paul Hudson

Paul Hudson is the author of Hacking with Swift, Pro Swift, Swift Design Patterns, Server-Side Swift, Hacking with macOS, Hacking with watchOS, Hacking with tvOS, Swift Coding Challenges, and more. Suffice it to say, he quite likes Swift. And coffee. (But mostly Swift.) (And coffee.)

Session: What Star Wars Can Teach Us About Swift

Soroush Khanlou 

Soroush Khanlou is a New York-based iOS consultant. He’s written apps for the New Yorker, David Chang’s Ando, Rap Genius, and non-profits like Urban Archive and the Global Heritage Fund. He blogs about programming at, mostly making fun of view controllers, and podcasts at In his free time, he runs, bakes bread and pastries, and collects suitcases.

Session: You Deserve Nice Things

Liz Marley

Liz Marley is a Software Engineer at the Omni Group. She also has 10 years of experience testing Omni’s software. Her idea of summer vacation is to help middle schoolers learn to make software at App Camp for Girls. And if you catch Liz away from a computer, she’s probably knitting, watching a soccer game, or both.

Session: Thinking like a Tester

Shai Mishali

Shai Mishali is the iOS Lead for the Tim Hortons mobile app, a Tech Editor and Author on and is involved in several open source projects on his spare time – mainly the RxSwiftCommunity and RxSwift projects. As an avid enthusiast of hackathons, Shai took 1st place at BattleHack Tel-Aviv 2014, BattleHack World Finals San Jose 2014, and Ford’s Developer Challenge Tel-Aviv 2015. You can find him on GitHub and Twitter.

Session: RxSwift: debunking the myth of hard

Carola Nitz

Carola Nitz is an iOS Software Engineer who spent quite a few years working on various iOS Apps. 
She spent the last years contributing to complex projects like Apple Maps and VLC for iOS where she learned to navigate matured projects with legacy code. 

She’s become known for her talks and tweets about Debugging but her passion is Open Source, where she enjoys working in a diverse team and sharing her knowledge.

Session: Debugging Techniques your senior hasn’t told you about

Jon Reid

Jon Reid has 17 years of experience doing Test Driven Development (TDD) in Apple environments. He began writing about programming at work, then giving talks, then teaching classes for employees. Eager to share more broadly, Jon started the Quality Coding blog, and began giving external talks and training. Jon is available on a limited basis to bring his training and coaching on-site to your teams.

Session: Making Money, Sleeping Better: How TDD Can Help You

Ben Scheirman

Ben Scheirman is an experienced software developer from Houston, TX. He is the founder of, where he produces high-quality screencasts on iOS & Mac development.

When not programming, Ben enjoys playing guitar, geeking out about beer, and spending time with his wife and five wonderful children. Read his blog online at

Session: Visualizing Bezier Curves with Swift

Brent Simmons

Brent Simmons has been writing apps for Apple computers for over 30 years, since his first Apple II Plus in 1980. His professional apprenticeship was at UserLand Software where he worked on Frontier and on Manila, an early blog platform. Later he created apps such as NetNewsWire, TapLynx, Glassboard, Vesper, and MarsEdit. Brent lives in Seattle with his wife Sheila and his cat Papa, who’s named for both Ernest Hemingway and the great designated hitter Edgar Martinez. By day he works at The Omni Group as a Marketing Human.

Panel: The Omni Show (LIVE)

David Smith

David Smith is an independent iOS developer based in Herndon, VA. David began developing apps for the iOS App Store as soon as it was announced in 2008. In that time he has experienced all the ups-and-downs of running an independent app software company. Navigating the often challenging but rewarding realities that can entail. He is the developer of many apps including: Pedometer++, Workouts++, Activity++, Sleep++,  Audiobooks, and Feed Wrangler. David co-hosts a weekly podcast with Marco Arment, called Under the Radar, discussing Apple-related topics.

Daniel Steinberg

Daniel Steinberg is the author of the best selling books A Swift Kickstart and Developing iOS 7 Apps for iPad and iPhone (the official companion book to the popular iTunes U series from Stanford University taught by Paul Hegarty).

He has written apps for the iPhone and the iPad since the SDKs first appeared and has written programs for the Mac all the way back to System 7.

Daniel presents iPhone, Cocoa, and Swift training and consults through his company Dim Sum Thinking. His books are available on the iBookstore. When he’s not coding or talking about coding for the Mac, the iPhone, and the iPad he’s probably cooking or hanging out with his daughter.

Panel: The News From Next Door

Marcus Zarra

Marcus S. Zarra has been developing Cocoa software since 2003, Java software since 1996, and has been in the industry since 1985. Currently Marcus is producing software for iOS and OS X. In addition to writing software, he assists other developers by blogging about development and supplying code samples on Cocoa Is My Girlfriend. Marcus is also the author of:

  • Core Data in Swift: Data Storage and Management for iOS and macOS
  • Core Data (3rd edition): Data Storage and Management for iOS and macOS
  • Core Animation: Simplified Animation Techniques for Mac and iPhone Development.

You can find Marcus on Twitter, and on StackOverflow.

Session: A discussion about Core Data