Who's there?


Brent Simmons

Brent 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, 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.


Chris Parrish

Chris is one of the founders of Aged & Distilled, developers of the popular Mac application Napkin. Chris has been programming for Apple's platforms for over 3 decades, starting with assembly language on an Apple II+. He has contributed to dozens of high profile applications including Postage, the 2009 Apple Design Award winning iPhone app. In addition to his development work, Chris is the co-host of The Record podcast with Brent Simmons.

@twenty3 / therecord.co


Daniel Jalkut

Daniel Jalkut is the founder of Red Sweater, where he develops MarsEdit, the popular blog editing software for the Mac.

He has been an active participant in the Mac and iOS communities, sharing bits of wisdom on his company blog, the Bitsplitting blog, and on Twitter. He is also one of the familiar voices from the popular indie-developer podcast Core Intuition.

After growing up in Santa Cruz, California, and spending several years earning his credentials as a software engineer at Apple, he moved to the east coast of the United States. He now lives and works outside Boston, Massachusetts with his wife and two children.


Daniel SteinberG

Daniel 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.


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


Edward Valentini

Edward Valentini is a Lead iOS Engineer at Fitbit on the Mobile Platform team.  Previously he has worked at various startups both in San Francisco and New York.

Hailing originally from the big apple, Edward now resides in San Francisco where he is always on the lookout for the best tacos.


Ellie Shin

Ellie is an iOS Engineer at Uber on the mobile platform team.  She has worked on building Uber’s rider app and cares deeply about optimizing iOS apps at scale.   She has previously worked at Spotify and Microsoft among other companies, primarily on iOS.


Gwen Weston

Gwendolyn Weston is a Brooklyn-based freelance software developer, artist, and accountability coach. As a consultant, technical writer, and coach, she's worked with StitchFix, Apple, BBC, Google, GitHub, Square and many more companies. She brings a mathematical rigor and earnest curiosity to all challenges, whether it's implementing research-level cryptographic algorithms in C, writing engaging and accurate documentation, or coaching founders on navigating transitions with clarity and accountability. Most recently, she's been focusing her efforts on community building through volunteering at New Women Space, and has published a zine on how to make friends as an adult.  Her favourite shade of purple is #A157E8.

@purpleyay / gwendolyn.io


Jaimee Newberry

Jaimee Newberry is the CEO of Picture This Clothing. She brings industry leadership and experience gained from advising C-level and senior management teams at startups, agencies, and Fortune 500 companies. Her insight, practices, and a personal ecology have proven to elevate the culture, processes and quality of high-performance software design and development teams worldwide and now manifests through her own company and brand. Across her career, Jaimee has worked with Audi, Apple, Barnes & Noble, Disney, McDonalds, Nintendo, Zappos, and many more. Jaimee is a professional experimenter, speaker, and writer who lives, learns and fumbles out loud. She’s also the independent mother of two girls and two cats, and girlfriend of a beautiful, shy man who likes to remain mostly anonymous.


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.


Jon-Tait Beason

Jon-Tait Beason (Jazbo) is a iOS software engineer at Glowforge, maker of the 3D Laser Printer. He has a background in education and enjoys teaching and learning. To that end, he spends a lot of time hanging out in iOS communities where he learns from others and helps engineers starting out.

Jon Reid

Jon Reid has 17 years of experience doing Test Driven Development (TDD) in Apple environments. He works at American Express, writes the Quality Coding blog, and does on-site TDD training for iOS teams.


Kaya Thomas

Kaya is currently a full time iOS engineer at Slack on the Messaging team working on Notifications and Accessibility. She graduated from Dartmouth College with a degree in Computer Science. Kaya started learning iOS development in 2014 and was a software engineering intern at Time Inc, Intuit and Apple. In the summer of 2014, she launched We Read Too, a book resource app that features titles written by authors of color. Recently, Kaya was featured in the App Store about We Read Too and what inspired her to create it. Aside from coding, she also enjoys writing and has bylines in TechCrunch and Fusion.


Liz Marley

Liz is a 13-year veteran of the Omni Group, now starting a new role as an iOS engineer at Nordstrom. She has also organized App Camp for Girls in Seattle several times. She speaks at conferences as an excuse to learn new things and hang out with other macOS and iOS developers. She hasn't written any books or hosted any podcasts...yet. 


Mike Ash

Mike is an engineer on the Swift team at Apple.


Rob Napier

Rob is co-author of iOS Programming Pushing the Limits. Before coming to Cocoa, he made his living sneaking into Chinese facilities in broad daylight. Later he became a Mac developer for Dell. It's not clear which was the stranger choice. He has a passion for the fiddly bits below the surface, like networking, performance, security, and text layout. He asks "but is it good Swift?" a lot.


Rudro Samanta

Rudro Samanta has been writing MacOS desktop apps from well before the existence of the iPhone (and attending WWDC in the days when tickets never ran out!). He has worked at Pixar Animation Studios (on desktop Mac apps for artists) and Twitter (helping build the Onboarding flow for iOS) before joining the Mobile Platfom team at Uber, where he focusses on foundational infrastructure such as app-architecture, performance, dependency-injection and more.


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 khanlou.com, mostly making fun of view controllers, and podcasts at fatalerror.fm. In his free time, he runs, bakes bread and pastries, and collects suitcases.


Steve Scott (Scotty)

Scotty is the co-owner of Diligent Robot, a macOS and iOS development company based in the UK.
He is also the host of the iDeveloper Podcast and creator of NSConference.

He has been developer since 1987 when he started writing accounting software using COBOL on a Convergent Unix machine using vi as his IDE (sorry Emacs people). Since then he has worked on mainframes (ICL, DEC, & IBM), 16bit and 32 bit Windows, .NET and since 2007 macOS (OS X) and (a little later) iOS. During his career he has learnt (and forgotten) more languages and IDE’s than is possibly healthy for one lifetime.


Walter Tyree

Walter first began writing software using punched cards and FORTRAN in the 70s and then started programming on an Apple ][. He was successful but relatively unhappy in his career as a high school teacher and then as a manager in corporate IT departments. He left his last real job in 2010 to develop iOS software for his own company and as a contractor for other companies. His recent projects have focused on Core Location, Core Bluetooth and Vision frameworks. He also really enjoys debugging code. He has a brown and black dog, a patient wife, and at least three children.