
Alex is a Developer Relations specialist at VoidZero, a Nuxt.js Team member, Web Engineering Consultant, and open-source enthusiast. He creates tech-focused video content, co-hosts the DejaVue Podcast, speaks at conferences, and leads workshops to empower developers and advance the web ecosystem.
- Reinventing JavaScript Tooling - Is This the End of Rollup and ESLint?

Andreas is a backend engineer working at BI X - Boehringer Ingelheim's digital lab. Andreas is a boring technologies enthusiast and enjoys functional programming languages and simplicity. He's a father of two, amateur marathon runner and hobby cook with a passion for vegan cuisine.
- Back to the Future: Building High-Performance UIs with Web Standards and Full-Stack Ownership

Anna Maier is a software developer with many years of experience in both backend and frontend. She has been working as an IT consultant for codecentric since 2021. Accessibility has been her passion for many years. She also advocates for diversity and organizes a meetup for women in IT, the Female Dev Club.
- Accessible Web Components
- Manual accessibility testing

Daniel Sogl studied Business Information Systems with a focus on Banking at the Baden-Württemberg Cooperative State University (DHBW) in Stuttgart. During his studies, he specialized in web development with Angular and React and discovered his passion for mobile application development. When developing mobile apps, he generally relies on Ionic and Capacitor to create innovative and powerful solutions.
After graduating, Daniel gained valuable experience in consulting, working in the automotive and pharmaceutical sectors. As Lead Developer, he played a key role in developing a mobile broker app. Today, he brings his expertise as a Software Architect at Thinktecture AG, where he supports clients in developing complex web applications. Daniel places great emphasis on knowledge exchange to promote technical excellence.
- From Copilot to Autopilot – How AI Coding Tools Are Transforming the Developer Role

In her role as Product Owner, Eva Feigl places particular importance on continuously improving the process of understanding customer needs, translating them into clear requirements, and working with the development team to deliver products that offer real added value and are pleasant to use. Her focus is on the interplay between product development, product analytics, and UX design.
- Beyond clicks: Measuring UX, outcomes and real product success

Ferdi is a Developer & Consultant at codecentric. He cares about software craft and quality and is a fan of pairing/ ensemble work to increase the odds. Ferdi is co-host of the Software Craft Leipzig Meetup and believes experimental hands-on sessions are the way to learn.
- How valuable are your tests?
- AI-Powered Development: Vibe Code Doesn’t Work! You Won’t Believe What You Should Do Instead!

I’m Garrelt, 29 years old, and father. My passion for computer science began in 2015 with a dual study program at Siemens. After earning my bachelor’s degree, I took on a position as a full-stack developer in consulting. In 2022, I made the move (after nearly giving up on a childhood dream) into the gaming industry, where I’ve been developing games with web technologies at Lotum ever since.
- Signals in Depth - How reactivity works in many frontend frameworks

Henning is a co-founder of makandra, a development agency for bespoke web applications. For over 10 years he's been building and maintaining Unpoly, a hypermedia framework for building dynamic UI on the server.
Website: https://triskweline.de/
- The Limits of Hypermedia

Jan is a frontend engineer working at BI X, Boehringer Ingelheim's digital lab, where he is supporting the business and team members with web and accessibility best practices & implementations. He also runs the Frontend RheinMain community hub which brings together tech companies, developers and knowhow. And he enjoys home computer nostalgia.
- Back to the Future: Building High-Performance UIs with Web Standards and Full-Stack Ownership

Should he really add another training program, an internship, to his computer science degree? Jo didn't hesitate long, because working at c't promised to combine two things he really enjoys: his passion for computers and writing. That was almost 30 years ago.
Since the end of 2022, his job has consisted almost exclusively of categorizing the huge wave of news about Artificial Intelligence in articles, interviews, and webinars: Who has released a new language model, where has a new AI function been attached to an app? His other topics – see below – have receded somewhat into the background. He is responsible for the content design of the c't conference. And as Hartmut Gieselmann's representative, he coordinates the work of colleagues from the "Internet, Data Protection and Applications" department.
- Official Opening

Joshua Töpfer is a Senior Consultant at INNOQ. He’s been working exclusively in an ensemble for over four years, focusing on user-centered product development, data-driven decisions, and how collaboration helps teams grow beyond just shipping code.
- Beyond the tech stack: The real secret behind successful teams

I'm a Principal Software Engineer at adesso with more than a decade of experience of working in most roles on the technical side of projects of every size.
I'd like to think of myself as focused on simplicity and open minded, though I'm told I sometimes come across as untouchable - if you have any questions please just ask me, I don't bite ;)
When I'm not coding I like to ride rally motorcycles and I've been known to tinker with them from time to time - occasionally even with moderate success.
- Stop Writing JavaScript for Things CSS Can Do
- No, webcomponents are not the past

I'm a web developer with nearly 15 years of professional experience. Although I'm usually called senior frontend developer, lately I'm most interested in writing a wide range of bullet-proof tests for frontend applications, accessibility, good practice advocacy and upskilling fellow engineers.
I have loved React since first contact. This is because of its simplicity and intuitive approach. Recently I'm exploring possibilities to merge web and mobile development, thanks to the latest trends triggered by the React core team. I also love sharing my approaches, patterns and knowledge in general. I know it helps other developers to grow professionally, as well as it challenges what I know already.
- Automatic testing of web a11y - from zero to dev focused.

Marco ist Architekt und Consultant bei codecentric, Lehrbeauftragter an der FH Salzburg und leidenschaftlicher Verfechter von SoftwareCraft & Qualität. Er hält regelmäßig Vorträge auf Konferenzen und ist Autor mehrerer Fachbücher. Wenn er mal nicht tief im Code vergraben ist, verliert er gerade gegen seine Kinder in analogen Brettspielen. Du kannst ihm unter linkedin.com/in/marco-emrich folgen ;)
- How valuable are your tests?
- AI-Powered Development: Vibe Code Doesn’t Work! You Won’t Believe What You Should Do Instead!

Martina Kraus has been active in the world of web development since her early years and has gradually become an expert in web security. As an Security Engineer, she focuses on integrating security best practices into all phases of software development. In her role as a Google Developer Expert (GDE) in Angular, she enjoys sharing her knowledge of Angular security at both national and international conferences. She also regularly organizes ngGirls events (free Angular workshops for women) and is currently writing a book in German about authentication and authorization in web applications.
- Web Security Fundamentals
- Protect Your Frontend: Why Storing Tokens in the Browser Is a Bad Idea
Martin has been consulting and supporting companies in the implementation of their software projects as a software architect and agile coach for many years. He always has the big picture in mind, looking for the boundaries that naturally divide the domain into conceptual units in order to build robust and efficient systems from these parts. Additionally, his profound experience in facilitating workshops helps him to accompany groups in their process of gaining insights and decision-making and to enable all team members to interact in an appreciative and effective manner.
- Reusability Done Right - Domain-Driven Design, Closure of Operations, and Monoids

Max Marschall is a developer with a passion for machine learning, 3D, the web, and everything in between.
Since his time as a student tutor, he has been sharing his experiences and passion with others. Practical and innovative solutions define the content of his international sessions and workshops!
As a developer and consultant at Thinktecture AG, he helps clients find and develop solutions for complex problems.
- AG-UI & MCP: Standardizing Agentic Web Interfaces

Nicole Rauch is an independent software developer and development coach with a solid background in compiler construction and formal methods. Her focus is on Software Craftsmanship / Clean Code and Domain-Driven Design, working with React.js in the frontend as well as working with legacy code. Nonetheless, her secret love is for functional programming. Also, she is committee member and co-organizer of a number of conferences and magazines as well as co-founder of Softwerkskammer, the German-speaking Software Craftsmanship community.
- Reusability Done Right - Domain-Driven Design, Closure of Operations, and Monoids

Nils Hartmann is a freelance software developer and architect from Hamburg. He specialises in the development of backends with Java and Spring as well as frontends with GraphQL, React and Next.js. He offers training sessions and workshops on these topics and has written a book on React. Contact: https://nilshartmann.net
- Fullstack React: Server-first or Client-first?

Peter Kröner is a trainer for frontend web technologies. He either spends his days reading dry specifications and fighting buggy browsers or doing workshops on the latest and greatest web standards.
- Stranger than fiction - 5 useful JS APIs that you've never used

Richard Gross is an IT archaeologist at MaibornWolff with more than ten years of modernization experience. His focus is on hexagonal architectures, hypermedia APIs, TestDSLs and the expressive and unambiguous modelling of the domain as code. He enjoys mastering TDD, BDD, DDD, decoupled design and even practices that don't include two D's. He also shaped the open source project CodeCharta, which lets even non-developers grasp the quality of their software.
- Making sense of frontend code with forensic techniques

Sebastian Springer works at MaibornWolff in Munich and is primarily concerned with the various aspects of client- and server-side JavaScript. His focus is on the question of how to improve the world with web technologies. From JavaScript in vehicles and other everyday objects to the implementation of extensive enterprise platforms, the scripting language can now be found in all areas of life. This raises the question of how architectures, code quality and development tools are evolving to keep up with these demands. Sebastian gets to the bottom of these questions and passes on his knowledge to web developers as a consultant, trainer and author. Follow Sebastian on LinkedIn and on X.
- AI Agents Beyond Simple Chatbots
- AI Applications in Node.js with LangChain and LangGraph

Tobias works as a modernization architect at viadee consulting. He supports customers of the insurance and finance sector in the modernization and migration of individual software systems. At viadee he leads the competence cluster Java & Architecture.
- Strategies, Tactics, and Patterns of Legacy Migration

Technology, media, and digital transformation are my focus – for over 20 years as a journalist and in the tech industry.
After working at companies like Axel Springer, DER SPIEGEL, and Meta (Facebook's parent company), I am now Editor-in-Chief of heise medien. I work with a fantastic team to further develop reliable and in-depth tech journalism. In addition to heise online, we produce c’t, the Apple magazine Mac&i, and many other services, podcasts, videos, and educational offerings. I am particularly interested in media regulation, artificial intelligence, digital business models, and the future of journalism. My screen time is currently about twelve hours a day.
What drives me? Making complex topics understandable. And ensuring that well-founded reporting remains relevant in a media landscape shaped by algorithms and platforms, so that we can continue to produce the best independent tech journalism in the future.
- Official Opening

Vicky Pirker is a User Experience consultant who bridges the gap between people and technology with strategic insight and genuine passion.
Drawing on her expertise in understanding user needs, business objectives, and technical possibilities, she crafts innovative solutions by asking the right questions and diving deep into complex challenges.
Beyond her consulting work, Vicky is an international conference speaker and champions diversity in tech as a Google Women Techmakers Ambassador and Hacker School Inspirer.
- How to communicate that this sucks
- Nobody Needs UX
- Back to the roots: Master the 10 Usability Heuristics for modern web interfaces

I've been working with JavaScript since before it was cool – co-founding a JavaScript consultancy in 2008, when it was still dismissed as a toy language. That early bet paid off, placing us at the center of JavaScript's rise. In 2016, I started the JavaScript the Language meetup and launched jskatas.org, both focused on deepening understanding of JavaScript through hands-on learning and the ECMAScript spec.
I later led the Speed Team at a high-traffic platform, where we focused on measuring and improving real-world web performance. My work has consistently returned to the fundamentals: fast, lean, understandable code and a strong connection to how the web really works.
Alongside my professional roles, I've created community-driven events like jscraftcamp.org and jscoderetreat.com, centered around software passionates, clean code, and sustainable development practices.
In everything I do, I aim to reduce complexity, rediscover the power of the platform, and help others do more with less.
- View Source Is Back: Why Framework-Free Matters in 2025