Speakers

Bas Peters is Solutions Engineer at GitHub, where he helps organizations to adopt GitHub to build software in a collaborative way. He has been a software developer and consultant for over 15 years, and is particularly interested in the impact of open source software. Before joining GitHub, he worked for several software companies and business consultancies.

Maartje Keulen is an AI and data expert with over 10 years of hands-on experience implementing AI solutions across manufacturing, finance, and enterprise organizations. As co-founder of CTRL+ALT+LEAD, she helps companies move from AI experiments to production systems that deliver measurable business value. A competitive athlete still performing at the highest level, Maartje applies high-performance sports principles to technology adoption, advocating for learning-by-doing cultures where teams build real AI capability through iteration rather than theory. Based in the Netherlands, she speaks regularly on practical AI implementation, organizational change, and scaling AI beyond IT departments.

Sam is a Senior Software Engineer at GitHub, where he leads development of the GitHub MCP server. He works on AI developer tools and helps shape agentic workflows at GitHub. In a past life he was also a professional drummer.

Glenn is a software engineer and tech speaker who loves building modern web applications with React, TypeScript, and AI. He's passionate about design systems, exploring how AI can enhance interactive experiences, and teaching developers to build better products. Outside of tech, he's either traveling the world, diving underwater, cycling, or making music on his guitar.

Elvira is a mobile software engineer, currently working at ING Netherlands as a Flutter developer. She is a true passionate about mobile app development and its power of crafting meaningful experiences, which led her to transition from a design role to a software development one. After exploring different stacks, she is now a Flutter enthusiast.

Fleeing the land of Starbucks Coffee and ridiculously-hopped beer (Seattle) with his wife and five cats, Jeff Watkins has found tranquility beside the Water of Leith in Edinburgh, Scotland. Together, they have founded Thoughtful Apes — a boutique consultancy dedicated to helping startups thrive. Jeff has been an engineering leader, mentor, and public speaker for more than three decades. He spent ten years at Apple where he worked on core iOS frameworks and apps delivered via the App Store. It’s not his fault Game Center had either green felt or “those bubbles”.

I’m an experienced Mobile Engineer focusing on Android & Flutter with 5+ years experience on Mobile Apps Development with Flutter. I had a few talk experiences & various project mostly on Flutter and Android development. I also published some apps on Play Store and App Store. I always loved Flutter ever since its beginning because it makes Application Development way easier like it never was.

Helvira Goma is a full-stack developer with over six years of experience who loves making technology feel intuitive, meaningful, and a little bit magical. When she’s not deep in code, she’s on stage sharing stories about tech, creativity, and the human side of engineering — or connecting with others through Motiv'Her, her online community that encourages more women to explore and thrive in technology. Whether she’s writing software or speaking to an audience, Helvira brings the same curiosity and care to everything she creates — always aiming to spark inspiration, one line of code (or one talk) at a time.

Susanne (She/Her) is a C# backend engineer in the .NET stack who loves clean, maintainable code, automating the boring stuff, and letting tools like Renovate do the heavy lifting. She started her career as a full-stack developer, but these days she’s all about backend magic—automation, productivity, and building software for critical infrastructure that is reliable, robust, and built to keep things running. As an international conference speaker, Susanne shares clear, relatable stories about building software, working smarter with automation, and boosting developer productivity, all delivered in a practical, approachable, and yes, sometimes fun way. She also champions inclusive, neurodiverse-friendly environments [...]

With over a decade in the Android world, I’ve lived the fast-paced startup life in California before returning to France. Today, I’m leading and managing the Android team at Aircall, where we're building the best phone system for modern businesses. Beyond Android, I’m passionate about backend development with Kotlin and exploring the possibilities of AR/VR. In 2021, I was honored to become an Android GDE—continuing my mission to share knowledge and grow alongside the amazing Android community. Outside of work, you’ll find me traveling the globe or on the hunt for the perfect IPA.

Senior iOS Engineer, Community Organizer

Amazed by Dostoyevsky and Albert Camus, I studied Philology and got a Bachelor's in Finance while working as a construction worker and Political Advisor later. Part of Refugees.com and involved into changing the public administration in Romania through digitalization, I joined the beautiful world of Web Development and, in three years, I grew from scratch to Senior Full Stack Engineer within ING Hubs Romania with the aim of giving to others what I learned along the way. I write about coding stuff on Linkedin and about the books I read on Instagram (@brutalbookvoices).

As a Staff iOS Engineer at WeTransfer, Antoine’s work is focused on code architecture and team processes. He's passionate about contributing to the iOS community where you might know him from his weekly blog posts on his personal blog called SwiftLee, his newsletter SwiftLee Weekly, SwiftLee Jobs, or RocketSim; a Simulator Enhancing App. He particularly enjoys speaking on best practices for structuring code architecture in a way that creates sustainability, as well as open sourcing frameworks and how iOS developers can be more successful in their work.

Alex Karp is a Senior Engineering Manager at Slack, developing Slack's AI functionality. Despite choosing the managerial life, he still loves to do iOS/macOS development whenever he gets a chance. He lives near Boston in the US with his wife, adorable son, and his mischievous cockapoo. In his spare time, he loves to play the piano, read YA fantasy fiction, and bring back the 1920s by dancing Lindy Hop.

Joannis is a well known figure in the Swift ecosystem. He's the chair of the Swift Android Workgroup, and member of the Server and Build & Packaging workgroups. He's worked on both major web frameworks for Swift, Vapor and Hummingbird. These days he's focussed on improving Swift Developer Tools as part of his startup - Wendy Labs - where they develop Embedded Linux systems in Swift.

Dan Wood has been creating Mac software since the days when the Mac itself was new. With a Computer Science degree from UC Berkeley and a passion for intuitive design, he's built products that have helped thousands of users and shaped the trajectory of Apple-based software. He's most known for Watson, a 2002 macOS app that gave users a number of small utilities that accessed data only available over websites, packaging them into rich user interfaces. Apple loved the idea so much that they awarded it an Apple Design Award while simultaneously copying much of it into their app called [...]

Mike has been working in web application development for 15 years, including time as a CTO and startup founder. The journey has taught him a lot about how teams grow together, ways to build resilient software systems, and how we need to understand the impact of what we build on the world around us. He's passionate about sharing this experience with the wider software & business communities, mentoring the next generation of engineers & entrepreneurs. He also has a deep dislike of printers.

I am a Software Developer with over 10 years of experience, primarily as an Android Developer. Along the way, I've also worked with Flutter, Kotlin Multiplatform (KMP), and various other technologies—whatever gets the job done. I'm a regular attendee of Droidcon Berlin 🤖 and passionate about sharing knowledge. I strive to make my talks engaging, insightful, and easy to digest, ensuring they provide real value without feeling overwhelming. Beyond speaking, I’ve published several articles and developed three apps that are actively helping doctors in Ukraine every day. I consider myself easygoing, but that doesn’t mean I lack expertise—I simply believe [...]

Wim Godden has been working with open source technologies since 1997 and has been involved in open source projects such as PHPCompatibility and OpenX. Next to web development, he's worked with a wide range of technologies (from database clusters to Internet backbone design) and focuses a lot of his time on high-scalability projects and on coaching/training web engineers. He's currently the CTO at one of the leading European locker companies for luggage storage and festivals/concerts.

For the past four years, I have been working as an App Architect/Tech Lead at a mobile application consultancy based in Bremen, Germany, with a strong focus on Flutter app development. In this role, I help shape the architecture of projects and play a key part in the company-wide standardization of Flutter development practices, including the creation of internal tools and infrastructure. In addition to my core work, I dedicate time to contributing to the Flutter community by posting on social media, writing articles, organizing the Flutter Meetup in Bremen, and delivering various talks.

Certified Kotlin, Swift and JavaScript Expert. Ex GDG Adana Co-Organizer. Experienced with many projects, hackathons, endorsements etc. Public speaker on various events such as DevFest, Android Worldwide, Mobile @Scale, RobotoConf and droidcon. Creative Medium-type-blog writer and certainly a Linkedin enthusiast.

Between having a family life, colunteering for a radiostation and attending (online) conferences and usergroup meetings, Stefan tries running a company called Ingewikkeld. Having worked with PHP and several of its open source products since the late 90s, he still likes it for getting the job done.

Mathijs is an Indie developer at Nonstrict working on the Apple platform, mostly focussing on macOS, visionOS and iOS. Working with a lot of video in his apps, both storing and transmitting it.

My software engineering career has spanned various roles, industries, and continents. Yet, I've always remained an iOS app developer at heart: there’s something uniquely satisfying about having your code run directly in the hands of users. As Principal iOS Engineer at Clue, I lead our Platform team. We enable and accelerate other teams across the company in our shared mission to advance science-driven body literacy for women and people with cycles everywhere.

Jessica is a Senior Principal Software Engineer at DigiCert DNS and has been using PHP for 27 years with 18 years experience in the hosting industry. Alongside this, she also attends far too many LAN parties and works on a number of open source projects for the community. In her remaining spare time she looks after her 2 cats and occasionally goes climbing and sailing.

I started programming in college with Pascal, Java, and C. As soon as I had a chance to work on iOS, I jumped on it. I have fond memories of the headaches caused by UITableView when understanding how it worked under the hood. He’s loved iOS development ever since, from Objective-C’s pthreads to Grand Central Dispatch and now Swift.

Tom is an indie developer at Nonstrict building apps on the Apple platform, mainly focused on macOS, visionOS and iOS. There he works a lot with video and audio, recording it aswel as transmitting it over the network.

Born in Rome in 1994, passionate about mobile development since forever. Andrea has been a technology enthusiast for as long as he can remember. He started developing his first Java programs in his early high school years, but with the advent of smartphones, he quickly fell in love with the mobile world. His experience started in Switzerland for an Android project in the medical field and continued for large companies such as NTT Data and Deloitte, until he got to his current Capgemini. Over the years he has developed applications with large user bases for various industries, specializing in native [...]

Melinda is an engineering leader and conference speaker with over 10 years experience of working with and managing teams of developers & managers and conference speaking. Since 2014, she has helped engineers, designers and product managers with their public speaking skills, through speaker coaching, workshops and talks about public speaking. She also works together with engineering leaders and engineering managers on how to build up internal employee evangelism & culture within their teams.

Dennie is Microsoft MVP Developer Technologies and has experience in accessibility with Microsoft technologies. In daily life Dennie is president and developer at DDSoft, a nonprofit that connects IT to People who are less tech-savvy. Dennie invented technical solutions and systems to help people with disabilities to participate in their daily life. Thanks to his autism he's the right man at the right spot to contribute as a volunteer in function of people with disabilities.

Klaudia is an Android Developer at BlueSpot with some Flutter experience on the side. As she is working on waste management apps where user friendly design also needs to meet industrially practical solutions, she has relevant experience in accessibility, maps and sensor communication.

Seasoned DevProd Engineer that still enjoys working on distributed build systems, compilers and high-load compute platforms.

Jan Seredynski is a mobile security professional with seven years of app development experience. He specializes in secure architectures and anti-tampering techniques. With a keen eye for uncovering vulnerabilities, Jan actively contributes to identifying and resolving CVEs and bugs through bounty programs. He is a valuable contributor to OWASP's Mobile Security Testing Guide.

Senior Android Engineer with over 10 years of experience in mobile, with a strong focus on native Android and cross-platform technologies: Flutter, KMP and Xamarin.

Pieter Jordaan is lead developer at Paqt and already active in PHP for 15 years. Pieter Jordaan worked with many PHP frameworks which gives him a good idea about different perspectives and solutions for handling a problem. The last 2 years he worked silently on his open source library Apie to have better tooling for Domain Objects.

Heather is a Developer Advocate at Gatling where she enjoys building content and community around making performance testing approachable and essential to teams. Her perspective is shaped by four years as a software developer followed by two years advocating for DevOps best practices. She’s an international speaker that enjoys comparing theory with reality of software development lifecycles, using practical examples and analogies. Her goal is to give engineers different perspectives that will build the confidence they need to make performance a core part of their workflow.

Peter started his career as a full-stack software developer in 2002 and has since progressed to a lead architect role. Over the course of these 20+ years, he has fulfilled many roles in various industries and gained extensive experience with a wide range of technologies such as Java, C#, JavaScript, and others. Nowadays, he leverages his expertise to assist companies, write articles, and speak at conferences. His main focus is on making software development more cost-efficient and future-proofing applications. Additionally, he has picked up making illustrations as a hobby because he is a strong believer in visual communication. There are [...]

First computer owned: Intel running Windows 3.1. First programming language: Pascal. First time I realised being a [good] programmer is (way) more about being able to work well with other people than writing code: late 2010, aprox. 3 years after starting to work as a programmer. Since then I've made "Learn. Develop. Teach." my mantra and tried my best to live up to it.

Sergès Goma is a Paris-based software developer specialized in JavaScript. When she's not fixing codebases, she gives motivational speeches mostly aimed at junior and would-be developers as well as participating in the tech women's empowerment online community Motiv'Her.

Balázs is a software engineer skilled in software architectural design, mobile security, effective product development and agile methodologies. His passion is creating intuitive, experience-focused user interfaces. He is always hungry for more knowledge and happy to share what he learns with others. He likes mentoring and being an enabler in a team. He is a co-organizer of the Android Budapest meetup group. Outside of work he enjoys cycling, photography, cars and coffee.

Sander ten Brinke is a Microsoft MVP and Lead Software Engineer at Arcady, a Dutch IT consultancy firm based in Zwolle. He loves working with .NET, Azure, DevOps and a whole lot more. He always stays up to date with all new technology and loves sharing his knowledge with everyone by speaking, blogging, podcasting and more! Sander is an accomplished speaker, he has spoken at 30+ events, including meetups and big conferences like WeAreDevelopers World Congress 2024 (15k attendees), NDC Oslo 2025, FutureTech and more! He was in the top 3% of the most active speakers on the Sessionize Platform [...]

Josu is a software developer working for Nevis Security. He has spent his career working in the user identity sphere, going from developing administrative tools, to implementing authentication protocols in both backend and mobile client.

I’m an iOS developer with 14 years of experience, working across consumer applications and secure SDK development, where privacy, security, and careful handling of PII are critical. In recent years, I’ve focused on applying this background to AI-driven systems, exploring how technologies like the Model Context Protocol (MCP) can be used responsibly and effectively. My work aims to help organisations, including the Dutch government, unlock real value from AI while building on their existing systems and constraints.

Vadym is a Software Development Engineer and Google Developer Expert (GDE) in Flutter & Dart, driven by a dual passion: engineering world-class mobile solutions and elevating the developers around him. His deep expertise and active contributions to the tech ecosystem were formally recognized by Google with the GDE award in 2025. With a rich background spanning over 8 years in native Android and more than 4 years in cross-platform development with Flutter, Vadym has a proven track record of building high-quality applications. He has partnered with industry giants such as Samsung, Volvo, Instagram, and Sky, as well as numerous dynamic [...]

Customer and quality focused mobile engineer in love with mobile platforms. I've been building software for quite a while: over 14 years of software development experience, 12 years of iOS. I have experience working on great products and I am excited to see them used.

Thomas fell in love with Android in 2009. He has been constantly contributing to the community since then. Thomas loves writing books (four titles, 15 editions) and articles. He enjoys speaking at conferences and meetups. Thomas' first encounter with programming was in the era of home computers during the early 1980s. Later came C, Perl and a few more. During the 90s he wrote a bunch of programs for the Atari ST series. The first decade of Thomas' professional career centered around Java Enterprise. Today it’s all things Android and Kotlin.

Jason is a Senior Software Engineer at Vesper, where he helps build and evolve the company’s Marketplace platform. He works across the entire stack with the aim of bringing value to not just users, but also his colleagues. He’s heavily involved in shaping the platform’s technical direction and architecture, gathering and documenting domain knowledge to ensure clarity between all stakeholders, and anything else the team needs to keep shipping quality software. Jason enjoys tackling complex problems, designing maintainable systems, and sharing practical lessons from real-world engineering challenges.

I'm senior developer at Dawn Technology

WTM Ambassador, Android254&KotlinKenya Co-organizer, Android Engineer.

I've been working as a .NET developer for over 16 years now in a variety of industries including government, retail and manufacturing. But I've been hacking around with computer code since I was old enough to read my Dad's copy of the ZX Spectrum BASIC coders manual. I've been speaking about Functional C# at various user groups and conferences around the UK, USA, Europe and Australia and am particularly interested in seeing just how far we can push C# without breaking it. In 2023 I released my first technical book: "Functional Programming with C#", published by O'Reilly Media. When I'm [...]

Marius' passion is exploring the latest communication technologies – and, even more, sharing his knowledge and learning from others. Originally from the Black Forest in Germany, he started his software development career as a UI developer in Silicon Valley, where he discovered his love for web technologies, especially JavaScript and the entire Node.js ecosystem. After countless creative (and sometimes frustrating) battles with CSS, he relocated to Munich, where he now works as a Developer Evangelist at Twilio. In this role, he inspires and empowers developers around the world to build cloud-native apps with outstanding customer engagement. He has also spent [...]

Chrystian Vieyra Cortes is Director of Engineering at Thomson Reuters, where he leads mobile teams building cross-platform news experiences. A longtime Android and iOS developer, Chrystian specializes in sensor data visualization and has published several popular educational apps. Originally from Celaya, Mexico, he came to the United States as a student to earn a B.S. in Computer Science from Western Illinois University and later made the U.S. his permanent home.

I'm a Google Developer Expert in Android, available either as a freelancer or through Apptaura, the mobile app development agency I co-founded. I build great apps for people, helping them to build great app businesses. I have a commercial focus and a wide knowledge of many technologies (both back- and front-end). I'm a regular conference speaker on topics related to Android, and app startups more generally. I also provide mentorship to those looking to start app businesses. I have a proven entrepreneurial capability and enjoy the energy of startup culture.

When you follow the cables, behind every piece of tech is a person, consumer and creator, and we should never lose sight of this. Lianne is an award-winning digital anthropologist and technologists specialising in software engineering, cybersecurity and AI. Lianne’s speaking specialism is to deliver talks that not only challenge audiences, but change them. She provides strategic consultancy to help organisations build and transform security operations into resilient, forward-thinking teams. As former Head of SecOps for Europe’s largest greenfield technology transformation, she established a cutting-edge security function that set new industry benchmarks through innovation and collaboration. An international keynote speaker, [...]

I'm an experienced web developer and a passionate IT and electronics trainer, specializing in frontend development and enterprise applications built with Angular. I spend most of my time exploring what's new in the tech world and helping other developers improve their skills. As a conference speaker, I bring advanced Angular topics, tips for the integration of smart contracts and best solutions for web3 applications.

Enterprise architect in banking. Eager on learning. Passionate about teaching. Focused on people and processes, quality and effectiveness. Having diverse experiences in multiple roles and sectors and tiny to huge companies. Found best match in holistic understanding. Choose to keep an eye especially on Enterprise and Solution Architecture. In free time mostly passionate about music (singing, playing, dancing) and sports (from martial arts to snowboarding).

Krasimir Tsonev is a coder with over ten years of experience in web development. Author of books on Node.js and React he works at Antidote.me where he helps people reaching clinical trials. Loves React and its ecosystem.

Jeroen has over 25 years experience as a Fullstack Developer, Scrum Master, Software Architect, Team Lead & Change Manager. He has a passion about creating and manage teams of code wizards. The last few years he has focused on AI from a digital transformation (management) as well as from a developer point of view.

Henning loves programming in high quality. He lives this passion as coder, coach, and consultant at WPS – Workplace Solutions. There he helps teams to structure their monoliths or to build new systems from the beginning with a sustainable architecture. Microservices or self-contained systems are often the result. Henning is author of “Domain Storytelling” (Addison-Wesley 2022), “Domain-Driven Transformation” (Addison-Wesley 2024) and the www.LeasingNinja.io.

Bruno Scheele has been developing apps since 2010 and has worked for many different clients, from small to big. His interest in making software that can be used by anyone and everyone, leads him to consider inclusivity in all aspects of development. Accessibility especially has captured his imagination and he now strives to keep learning more about this whole new world and help companies and organizations make truly usable apps for everyone.

Daniel is the author of more than a dozen books including the best selling books A Functional Programming Kickstart, A SwiftUI Kickstart, A Swift Kickstart and Dear Elena. Daniel presents iOS, Functional Programming, SwiftUI, and Swift training and consults through his company Dim Sum Thinking. 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. When he's not coding or talking about coding for the Mac, the iPhone, and the iPad he's probably cooking, baking bread, or hanging out with friends. [...]

As a seasoned DevOps engineer, I pride myself on ensuring the quality of products by drawing parallels between complex issues and simpler, everyday scenarios. This unique approach aids my team and me in delivering value, ensuring that our products are not only built correctly but also offer the right functionalities.

Muralidharan Kathiresan is a passionate Apple platform developer and currently leads iOS development at Bally’s in London. Over the years, Murali has built apps, led teams, and shared his experiences with the iOS community through SwiftPublished.in — a weekly blog and YouTube channel he created to share insights, tutorials, and trends in Swift development. He’s also part of the SwiftLeeds Conference team, helping bring developers together to learn, collaborate, and celebrate the craft of building great apps. Beyond code, he enjoys mentoring aspiring developers, running workshops, and exploring new ways to make learning iOS development more accessible. For Murali, writing [...]

As a Strategic UX Consultant, Vicky Pirker helps companies achieve sustainable business success through user-centered solutions. With the right balance of empathy and strategy, she identifies the real problems, evaluates digital products, and optimizes processes for measurable value. She shares her expertise as an international speaker and advocates for diversity in STEM/tech as a Google Women Techmakers Ambassador and Hacker School Inspirer.

I am a tech lead at Future, where I help manage millions of weekly requests for one of the world's largest publishing companies. I deeply love the PHP ecosystem and am passionate about crafting tools and solutions that make the lives of all developers easier. Whether it's improving the tooling you use to write your code, contributing to open source, or sharing the knowledge I learn day-to-day, my mission is to simplify complex workflows and improve productivity for development teams everywhere.

Jachim Coudenys is Director of Software Engineering at team.blue. Since discovering PHP around y2k_compliance = On (PHP4), his work and after-work activities brought him from the world of development to server management, development workflows, devops and eventually managing teams. Next to being an open-source contributor, he is co-organizer of PHP-WVL, a user group in West Flanders (BE). He is a Zend Certified developer, CKA, CKAD and conference speaker. You can follow him on http://twitter.com/coudenysj and read his occasional blog posts on http://blog.jachim.be.

Software Architect and Security Researcher

Vincent is a bilingual speaker who presents in both French and English. He works as a Senior Developer at Les-Tilleuls.coop and actively contributes to open-source projects. He has recently worked on initiatives such as API Platform, FrankenPHP, Symfony, the AFUP website, and Sulu. Driven by a passion for technical excellence, Vincent focuses on clean code and software architecture, continually enriching his practices through regular reading of specialized literature.

Anayo Oleru is a Software Engineer, Software Solution Architect, and Google Mobile-web Mentor based in Cardiff, UK. He has spoken at various international tech events, both live and online, including multiple JavaScript conferences in London, focusing on Security, Architecture, ML/AI, and JavaScript on the server and the web. Anayo is a recent first-class Computer Science MSc graduate, and he is passionate about sharing knowledge and connecting with fellow speakers and attendees. In his free time, he enjoys reading and writing short stories which he publishes on Amazon Books.

As a software engineer and technology lead with 8+ years of experience, I have made significant contributions to various industries, including Fintech, social media, health, e-commerce, and food technology. I have a proven track record of not only excelling in creating exceptional user experiences and aligning technical solutions with business goals but also in building and leading high-performing engineering teams. I am passionate about merging technical expertise with business understanding to drive growth and innovation. seeking a results-driven software Engineer and technology lead with expertise in diverse sectors, a passion for AR/VR development, and a commitment to fostering innovation, let's [...]

Bert is the founder of PowerDNS, software that powers a significant fraction of the Internet. He also did government cybersecurity work, and co-founded a software company in that field. These days Bert does DNA research and until recently was part of the government board that regulates the Dutch intelligence and security agencies. Bert is now a part-time technical advisor at the Dutch Electoral Council (“FEC”)

When not working on clubzero.co, smartmessages.net, supporting 1CRM at syniah.com, writing & pentesting for Radically Open Security, or acting as a DPO, I'm the maintainer of PHPMailer, a top-10 PHP project on GitHub, and probably the world's most popular email sending code. I'm a contributor to many other open-source projects, and I wrote the HTML5 email address spec. I'm an accomplished PHP coder, Linux sysadmin, technical writer, and MySQL DBA. I'm a strong advocate of digital rights and privacy - I love GDPR! I've been speaking at technical conferences in Europe and around the world since 2006. I live in [...]

Enrico is an engineer leading the Android app team at NewLook. Previously he was a senior developer at Amazon, working on the Ring alarm team, and spent a lot of years also in TUI developing their flagship app. He has worked on Android things for over 10 years, cyclist, and volleyball player in his free time.

Derick Rethans is a PHP internals expert and author of Xdebug. He works as an independent contractor and consultant on PHP extensions and related projects. He works for the PHP Foundation to improve PHP, and continues to contribute to the PHP project in numerous forms (Date/Time Extension, Xdebug, PHP 4.4/7.4 Release Manager, etc). He is a frequent lecturer at conferences, the author of php|architect's Guide to Date and Time Programming, and the co-author of PHP 5 Power Programming.

With 20+ years of experience in web development, he has seen technologies come and go. He has done work in multiple languages but he specializes in backend development in PHP. As a lead engineer, he values communication above technical specialization. He enjoys the puzzle of a piece of code and the fact that there's always more solutions to be found for a problem.

Tejas Chopra is a Senior Software Engineer, working in the Data Storage Platform team at Netflix, where he is responsible for architecting storage solutions to support Netflix Studios and Netflix Streaming Platform. Prior to Netflix, Tejas was working on designing and implementing the storage infrastructure at Box, Inc. to support a cloud content management platform that scales to petabytes of storage & millions of users. Tejas has worked on distributed file systems & backend architectures, both in on-premise and cloud environments as part of several startups in his career. Tejas is an International Keynote Speaker and periodically conducts seminars on [...]

I have over 20 years of experience as a software engineer and technical lead in various industries including eCommerce, Aerospace, and Fintech. As an open-source contributor, I have shared expertise and connected with the wider developer community. As a blogger, I have written extensively on software and data engineering topics. I am now part of a global innovative financial technology platform where I focus on APIs and Developer Experience.

I'm Shruti Balasa, a full stack web developer and a Tech Educator from India. I like to make web development simple for beginners through my courses, Youtube tutorials and eBooks. Some of my latest courses include "Laravel 9.0 Essentials" and "Advanced Laravel" on LinkedIn Learning and "CSS Grids Simplified" and "CSS Flexbox Simplified" on Laracasts. I'm a Tailwind CSS evangelist with most of my Youtube videos dedicated to help beginners learn the framework. I'm an author of two eBooks "Complete Guide to CSS Flex & Grid]" and "Level up with Tailwind CSS" with a combines sales of 1800 across 80 [...]

Craig is a Software Engineer from New Zealand, currently travelling the world, freelancing, teaching and consulting! He's an Angular GDE, and he loves using all kinds of technologies to build cool things that help teams build cool things!

Tugdual "Tug" est Solutions Engineer chez GitHub où il aide les développeurs à utiliser au mieux GitHub sur leur projets. Auparavant, Tug a travaillé chez Redis, Red Hat, MapR, MongoDB, Couchbase, eXo et Oracle comme dévelopeur, product manager ou developer advocate. Tugdual est également co-fondateur du Nantes JUG (Java Users Group) qui réunit tous les mois depuis 2008 les développeurs et architectes de la région nantaise.

Saravanan is an Architect working at Rabobank, Netherlands and one of the leads of the Growing Greener (Sustainability) community in the bank. He has more than 22 years of experience in diverse IT and business roles with different banks across the world. His passion is in Architecture, IT sustainability and Green Software and how we can generate more interest among the IT community in sustainable software.

Pamela is a Developer Advocate for Kotlin Multiplatform at JetBrains and has more than 20 years of experience writing desktop, web and mobile apps.

I've been fascinated by computers and software since I was young: at 12 I discovered the open-source world, joined the Ubuntu Community and started my journey in the software development magic. Android developer since 2013 when I bought my first Android phone. I immediately fell in love with the platform and started developing some projects like Numix and libraries like AppIntro and then bringing that passion to work. Now I'm developing Indoor Positioning and Navigation systems at Nextome in Conversano (Puglia), while I finish my Master's Degree in Computer Engineering at Politecnico di Bari.

I'm a Lead UX/Product Designer with more than 18 years of experience. Currently in London and working at the Financial Times, I've built my design career working in the tech hubs of New York, San Francisco, and Los Angeles. UX and digital design being my passion, I frequently write articles about design, speak at design events, and mentor up-and-coming product designers (with almost ten thousand followers between Medium, LinkedIn, and Twitter).

Marco is an Android engineer, currently working at Airalo. He is a Google Developer Expert for Kotlin, he loves Kotlin and he has experience with native Android and native iOS development, as well as cross-platform development with Flutter and Kotlin Multiplatform. In his spare time, he writes and maintains open-source code, he shares his dev experience by writing on his blog, speaking at confs and organizing events with the Google Developer Group Venezia and he plays basketball.

Marcin Moskala is an experienced developer and Kotlin trainer. He is the founder of the Kt. Academy, an official JetBrains partner for Kotlin training, author of the books Effective Kotlin, Kotlin Coroutines, and Android Development with Kotlin. He is also the main author of influential articles about Kotlin and a speaker invited to many programming conferences.

Marcel Schutte is a Lead Solution Architect at Sogeti Nederland, a leading provider of technology and engineering services. With over 17 years of experience in the industry, Marcel has a deep expertise in software development and a passion for solving complex problems. At Sogeti, Marcel works on a wide range of projects, from developing custom applications to implementing enterprise solutions. He is particularly interested in the latest trends and technologies in the field, such as cloud computing, microservices and architecture modeling. Marcel is also an active contributor to the developer community, regularly sharing his knowledge and insights through talks, workshops, [...]

Lirone Glikman is an international speaker, a thought leader in the areas of business networking and personal branding, and a global business development consultant catering to startup and high-tech companies. She has been researching business communication in a digital, evolving world. Over the past decade, Lirone has developed a methodology for achieving business results through authentic networking. She has spoken and taught to hundreds of thousands of professionals worldwide, including developers, executives, and entrepreneurs in leading corporations, universities, and governments globally. She has also presented on some of the world's most prestigious stages, such as the United Nations. Lirone has [...]

I am an Android Developer, working in and around IT since 2013. Java-trained with full stack interests, but now fully embracing Android. Come talk to me about creating an accessible app for all, Compose and fun team outings.

Kemal Selim Tekinarslan is an experienced Android engineer with a decade of expertise in developing Android applications. Currently based in Berlin, he works at Holiday Pirates GmbH, focusing on the development of travel applications. With a deep passion for mobile technology and its potential to improve human lives, Kemal actively participates as an attendee at renowned events such as Droidcon series, Android Makers Paris, and ADDC Barcelona. These conferences provide him with valuable insights and inspiration, allowing him to stay updated on the latest advancements in Android development. To further broaden his horizons, Kemal embarked on an enriching journey across [...]

Ibrahima is an iOS engineer with a decade of experience especially interested in building magical and accessible mobile experiences, scaling, and shipping reliable applications. He also loves sharing his knowledge at conferences and meetups and on his Youtube channel.

Giovanni is Sr. Developer Advocate at Amazon, where he works on supporting developers around the world using the Amazon Appstore on different devices. He previously worked as a software engineer in mobile, real-time defence system and VR/AR. He is Interested in low level programming, IoT, and command line :D.

Hakkim is a senior technology leader with 18+ years of expertise in delivering scalable, reliable, and sustainable technology solutions. He is currently the Head of App Engineering at Zalando, and he is passionate about delivering and optimizing Business Capabilities and Customer Experiences through Technology.

Ennio Brands is a Technical Strategist at Move. Over 15 years experience in platform and app development. Ennio has been responsible for over dozens of mobile apps that are still being used by millions of users today. As a Technical Strategist he now helps clients and organisations with their digital ambitions and writes and talks about digital innovations.

Father and husband · Google Developer Expert for Android · Mobile Staff Engineer at Decathlon · GDG Lille (Android), FRAUG and Devfest Lille organizer · Disney Fan!

Emad Ghorbaninia is a prominent figure in the tech industry, particularly known for his expertise as a Mobile Lead Engineer, Solution Architect, Passionate team lead, Public speaker and Article Author, Tech Editor, Video Instructor. His passion for technology extends beyond his professional duties, as he is always keen on learning new topics in the field. Beyond his tech pursuits, Emad enjoys a range of leisure activities. He's an avid player of both board games and video games, enjoys watching various series, plays the harmonica, and is also an intermediate table tennis player. In his professional capacity, Emad Ghorbaninia has contributed [...]