Konrad 'ktoso' Malawski

Konrad works in the Swift language team at Apple, where he focuses on concurrency and distributed modules of the language, and server-side focused libraries. He was part of the design and implementation of Swift’s structured concurrency and actor model, as well as the distributed actors language feature and cluster library. Currently he’s focused on Swift/Java interoperability efforts. Previously, he worked on Akka at Lightbend/Typesafe, where he maintained core pieces of the ecosystem, including the clustering, event sourcing, streaming and HTTP libraries. He also is a Java Champion and made significant contributions to the reactive-streams specification and TCK which later became the foundation of the JDK’s java.util.concurrent.Flow types.

Si Beaumont

Si works at Apple, where he helps maintain a number of open-source Swift libraries to support server-side use cases. Before that, he’s worked in a wide range of areas including virtulalization, cloud technologies, privacy-preserving machine learning, and developer tools.

Si is based in Cambridge, UK, but loves to travel and see new places. He’s hugely passionate about coffee and enjoys playing bass guitar.

Krzysztof Zablocki

Krzysztof is shaping the future of Apple platforms with tools adopted by 80K+ teams, from Apple to Disney. 🏆 2x Engineering Emmy winner, co-founder of Pixle, and creator of Foldify & Sourcery for Xcode.

Sebastiaan de With

Sebastiaan is an ex-Apple designer now making camera apps like Halide, Kino and Spectre at Lux

Benjamin Sandofsky

Escaped big-tech to build photography and video apps. Credits: Halide, Kino and Spectre.

Paul Hudson

Paul is the author of Hacking with Swift, Pro Swift, Swift Design Patterns, Testing Swift, Swift Interview Challenges, and more. Suffice it to say, he quite likes Swift. And coffee. (But mostly Swift.) (And coffee.)

Yoshimasa Niwa

As a software engineer, I divide my time between working on client applications, backend services, and occasionally indulging in watching cat videos and photos. I have led engineering teams and cats to deliver user-facing products with a special focus on usability, customer satisfaction, and meowing.

Gui Rambo

Gui Rambo is a Mac developer and security researcher from Brazil, known for apps such as AirBuddy and VirtualBuddy.

Andrew Zheng

Hi, I’m Andrew coming from San Francisco! and I like making apps. This is my second time in Japan, excited to be here. よろしくお願いします！

Sophie Hudson

Most people know my dad, Paul, but I’ve been building apps with SwiftUI for three years now and want to share what I’ve learned. I like manga, go karting, and coding, but I spend most of my time looking after my dogs.

Mikaela Caron

Mikaela Caron is an independent iOS Engineer who actively shares her expertise on social media, focusing on iOS development, building apps in public, and freelancing. She’s continuing to work on her indie app Fruitful, which helps people connect with others at conferences, while also traveling as much as she can. She’s also an organizer for iOSDevHappyHour and loves giving back to the community.

Noah Martin

Noah is a software engineer from Los Angeles. He co-founded Emerge Tools in 2020 after spending 5 years working on Airbnb’s iOS app and backend. He’s passionate about mobile developer tools that reduce the complexity of apps and make them faster. Outside of building dev tools, he researches systems for machine learning as a PhD student. When he’s not staring at a screen, Noah can be found in the water perfecting his strokes or on the trail working through a list of mountain peaks.

Nick Lockwood

Nick is a veteran developer, author and open source aficionado, and has been developing iOS apps since the dark ages of manual memory management back in 2009. He is known for various open source projects such as SwiftFormat, Euclid, Expression and iCarousel. When Nick isn’t writing parsers in (and for) Swift, he likes to tinker with 3D graphics and even sometimes fancies himself as a games developer.

Vincent Pradeilles

Vincent works at Photoroom and contributes to building great consumer apps. He also enjoys sharing about Swift and iOS on his YouTube channel.

kishikawa katsumi

Katsumi has been developing software for the Apple platform for over 10 years and currently works for a company that develops low-code platforms. He works on automating all kinds of tasks. In his spare time, he builds and maintains various open source projects that improve developer productivity.

Ryo Igarashi

Software Engineer at newmo, Inc.

Pradnya Nikam

With over 12 years of experience developing for Apple platforms, I am passionate about creating exceptional user experiences. I have a strong background in UIKit, and these days, I primarily focus on coding SwiftUI views for iOS and tvOS apps. I currently work at Rakuten Viki, a video streaming company with over a million active users per day.

I absolutely love attending conferences and public speaking, sharing my knowledge and learning from the community. Outside of work, you can find me planning my next travel adventure or running around with my 3-year-old.

rockname

I’m an iOS and Android app developer working on a banking and card payment service at SmartBank.

Ryo Yamashita

I’m an Individual developer.

I’ve released a variety of apps for Apple platforms.
iOS & iPadOS: 7 apps
visionOS: 5 apps
watchOS: 5 apps
tvOS: 1 app
macOS: 3 apps

Portfolio link
flipbyblink.github.io/Portfolio

Mike 'Kapsy' Petrie

I’m a New Zealander who has been living in Japan for the past 10 years. I primarily work with low level, real time graphics and audio. This year, I founded a company called kapsy.io, and am currently working on a real time generative music sequencer with the code named Variations.

Kosala Jayasekara

I have completed more than a decade long experience in the field of futuristic developments and managed to gain a portfolio of local and international clientele while working with prominent corporate entities in Sri Lanka.

Currently serving as the Chief Technology Officer for Fixel Digital which is a development house specifically for Mobile application developments . it’s a pleasure that I am well known for my Punctuality, Attention to detail, and innovative mindset among the clients and the industry that I am being with

I have started iOS Development in its early development stage in 2011. I have been in the apple ecosystem for more than a decade now, also Delivered more than 55+ Apps, including iOS, macOS, tvOS, and watchOS. At the same time, I am serving my knowledge to Students in the IT industry and providing consultation services to my clients from overseas.

tochi

I am an engineer/developer specializing in iOS and visionOS. I have created numerous personal apps, including “Large Contacts” for iOS and “Good Sleeper 360” for visionOS. I’ve authored several technical books, such as Slack & Zoom & Trello Basics + Tips for Telework (in the できるfit series) and What We Wanted to Know About Alexa, and more recently, The Path to Becoming a visionOS Developer. I have received many accolades, including the Mashup Award and top honors in contests organized by Japan’s Ministry of Internal Affairs and Communications, as well as multiple awards in SPAJAM and other hackathons. I have spoken at various events like JAWS Festa and Alexa Day, and I currently share insights on visionOS through social media.

Halordain

I’m Chris, also known as Halordain! I grew up in Dallas, Texas, and attended college at Stanford. I majored in electrical engineering with a specialization in image processing. I started studying Japanese to scout my opponents from Japan at the Pokémon World Championships, where my quarterfinals and semifinals opponents hailed from Yokosuka and Fujisawa, respectively.

My journey led me to Doshisha University to master Japanese under the Critical Language Scholarship. I abandoned my PhD at MIT CSAIL to pursue software development in Japan. Originally hired at Creatures Japan to process images for Pokémon cards, I ended up learning Objective-C to develop my first iPad app, Pokédex for iOS (Creatures, 2012).

After Creatures, I contracted with Bandai-Namco Studios to build the graphics engine behind Super Smash Bros. for 3DS. I parlayed my rendering knowledge in computer graphics, my image processing background, and my interest in iOS development into developing iOS Photoshop for Adobe, and eventually joined Apple to document their new graphics technologies such as Metal, ARKit, CreateML, and RealityKit.

I returned to Japan to help spearhead Nintendo of Japan’s smartphone game design, starting with Fire Emblem Heroes and Pikmin Bloom. These development experiences led me to craft my own path creating educational apps and experiences for teaching Japanese kids about AI and Swift.

Jeffrey Bergier

Cocoa Developer and Teacher. Love technology and cars. Working in the automotive software industry. Living in Tokyo.
Company: Woven by Toyota - This talk is not affiliated with my employer in any way.
GitHub: @jeffreybergier
Mastodon: @jeff

Ryota Motonishi

Ryota Motonishi is an iOS engineer at LY Corporation. He is working on the development of the LINE chat app. In his free time, he enjoys singing karaoke.

yamaken

I usually develop iOS apps at LY Corporation and actively output through blogging and speaking engagements. Last year, I spoke 13 times.

UJ Cheng

Advanced Software Engineer at Garmin. 10 years of iOS development experience since college. Love solving the LeetCode problems with Swift.

noppe

iOS & visionOS app developer in Japan. Crafting 𝙫𝙚𝙖𝙧 and DAWN for mastodon. Loving #foxes.

vear - Anime Avatar Camera
DAWN for Mastodon

Sugiy

• iOS and Flutter engineer in Japan
• Working in DeNA Co., Ltd.
• Often participate in Japan-\(region).swift events in Japan.
• Spoke at conferences in Japan such as iOSDC from 2022 to 2024 and FlutterKaigi2024.
• I like cooking, fish, Japanese food, and pineapples.

ojun

I develop iOS apps at DeNA Co., Ltd. My native language is Swift.

Akihiko Sato

Software Engineer at DeNA Inc., specializing in mobile development for live streaming applications. With extensive experience in iOS development since the Objective-C era, I am passionate about leveraging Swift’s evolution to create innovative and efficient applications.

Kazuya Ueoka

iOS app developer, creating personal projects like #Type, Quiz Match, and more.
Living in Tokorozawa, Saitama, in a renovated pre-owned apartment with my wife and two cats.
Photography enthusiast, traveling across Japan as a photographer for Japan-\(region).swift.

Satoshi Hattori

Belongs to Cyber AI Productions. XR Expert at Cyber Agent.
Responsible for system development related to XR and studio shooting.
Purchased Apple Vision Pro locally on its U.S. release day. Actively engaged in development and research, including the visionOS 30 Days project.
Organizer of the visionOS Engineer Meetup. Published a book on visionOS app development.
Has spoken at iOSDC for nine consecutive years, as well as at try! Swift Tokyo, XR Kaigi, Let’s visionOS, AWE USA, and more.
Mainly shares updates on X, so please follow!

Daiki Matsudate

Daiki has worked as an iOS Developer for over 10 years and met as a volunteer staff member at try! Swift Tokyo in 2017. Inspired by the international speakers and sponsors he met then, he attended his first international conference, WWDC 2017.
In his work, I work as a software engineer at a ministry, while also serving as a technical advisor at various startups and listed companies, and as a general incorporated association try! Swift Tokyo.
When he is not working, he likes to take podcasts with friends, play RPG games, snowboard in the snowy mountains, and spend time with friends in the neighborhood.　He bought Apple Vision Pro at Honolulu on the day of release.

Yoichiro Sakurai

Yoichiro is an engineer who likes to solve interesting problems. I has been contributing to try! Swift Tokyo since 2017. I love gourmet food and drinks, especially Japanese sake!

yucovin

yucovin is a designer and iOS engineer with over a decade of experience spanning multiple levels of structural designs and interface design/engineering in government and private start-up. yucovin has helped numerous teams improve their product/service quality and processes as a designer who can bridge design and development. And most importantly, she is the creator of Riko, the mascot of try! Swift!

Shingo Tamaki

Shingo is a freelance iOS Developer based in Okinawa! In addition to driving automation technologies such as test automation and CI, I have recently developed a strong interest in app development using AI and creating applications for visionOS.

Roku / Miki Yoshida

Roku is an iOS Developer. She joined try! Swift in 2019 as a volunteer staff member, and became an organizer in 2020.
She loves Swift community and occasionally organizes study sessions and development camps.
She is interested in beer, whiskey, and unique design clothes. In addition to creating apps, She also enjoy making accessories.
Her lucky number is 6️⃣, which is called “Roku” in Japanese.

Akio Itaya

I am the CEO of AkkeyLab, Inc., where we run a programming school. My main role at AkkeyLab is to promote the benefits of Swift. Lately, I’ve been enjoying playing tennis and futsal with my colleagues from the company.

Yutaro Muta

Yutaro is a Software Engineer who loves Swift. He has been contributing to try! Swift Tokyo since 2017.
Currently, he lives in the Kansai region and works at Hatena Co., Ltd.
His favorite things are beer🍺 and sake🍶. Recently, he has been experimenting with the Apple Vision Pro.

Shoko Sato

Shoko joined the DevRel team at LINE (now LY Corporation) in September 2019, after working as a front-end engineer at a venture company. There, she was responsible for tech branding, marketing, training, and managing technical conferences for the engineering organization. Subsequently, in March 2024, she founded THE BIGLE Inc., a company that provides support for Developer Relations, including technical PR, technical communities, and technical conferences, and became independent.

Maru / Marina Arai

Maru is about to enter her fourth year as an iOS Developer. Lately, she’s been diving into testing, and in her free time, she enjoys knitting and coffee.

Shota Ebara

Shota works as an iOS developer at Cybozu. His first programming language is Swift, and he loves Swift.

Tim Oliver

Tim is an iOS developer from Australia and is currently working at Instagram in Tokyo. He presented at try! Swift Tokyo 2016 and has been volunteering at the conference since 2018. In his free time, he loves video games, writing open source software and karaoke.

kazuhiro takami

kazu is a SWE at U-NEXT. He loves Computer Science. Especially low-layers

Naoki Muramoto

Naoki is a 3rd year software engineer working in Tokyo who loves Swift.
He loves beer and often drinks it when he’s not working.

sya-ri / Souya Ichikawa

Souya works as a server-side engineer at Yumemi. He is passionate about tech conferences, both attending and organizing them. In his free time, he enjoys traveling and photography, exploring various places.