React Day Berlin 2026

Kitze loves to rant about webdev. He is the founder Sizzy - the browser for developers. He created React Academy to teach web development. He's the creator of Zero To Shipped - the interactive video course for mastering Fullstack Development. He's documenting his journey on YouTube, steams on Twitch and has a blog that he maintains one in a blue moon. He made Benji, Twizzy, ok-google.io, JSUI, Glink, showGPT and etc.

Tejas Kumar is an international keynote speaker, best selling author, and host of the developer-loved ConTejas Code podcast with an engineering background spanning 23 years, from design to frontend to backend to devops. Today, Tejas shares talks at large with developer communities worldwide, equipping them to do their best work.

Sara is a developer relations engineer at Orama. Author of The Opinionated Guide to React. Open Source enthusiast. Conference Speaker. Talk to her about Retro Games or Airports.

CTO at Callstack. Passionate about cross-platform technologies. When not working, you can find him on a race track.

Brad Westfall has been teaching Web Development since 2010 including bootcamp instruction, online videos, conference speaking, writing at CSS-Tricks.com, and corporate training for ReactTraining.com. He loves to connect with students by helping them achieve their technical goals and by distilling complex concepts into simple instruction.

Barcelona-based engineer with a Political Science background and a lifelong passion for automation. 13+ years in the game. I started by founding a remote startup, then moved through teams of every size. I thrive on complex problems. I ship at the highest standard and build for growth. AI is a multiplier in my toolkit, not a crutch. I give back through open source, conferences, and mentoring. Knowing when to move fast and when to get it right is the skill behind every other skill. Great software lives at the intersection of ambition and pragmatism.

**Dennis Nerush** is the Director of AI at Elementor, where he leads the company's AI strategy and guides teams through the integration of GenAI technologies that enhance productivity while preserving human creativity and accountability. With over 15 years of experience as a developer, manager, director, and adviser across multiple tech companies and startups, Dennis has dedicated his career to building people-first cultures rooted in continuous learning, curiosity, and growth. He believes that when individuals thrive, teams and businesses flourish, a philosophy that has guided him in founding dozens of teams and mentoring over 100 managers. Dennis is a seasoned public speaker and writer who shares his insights on AI integration, leadership, and team performance at international conferences. He's passionate about helping leaders develop the skills and confidence to excel in a world where human leadership and AI collaboration go hand in hand. In his free time, Dennis loves cooking and spending time with his kids. His main goal is to help people reach the next level.

I am Saman Abaasi, a Frontend Engineer from Tehran, Iran, with more than 7 years of experience working with React and TypeScript. I am currently a Staff Frontend Engineer and Squad Lead at MTN Irancell, where I lead a small team building a Camunda-based workflow platform that is replacing a long-running Huawei OWS production system. Before MTN I was a Senior Frontend Engineer at Digikala, Iran's largest e-commerce platform, leading UIKit development across 60+ components. I spend my free time reading source code and writing about it. I have published three in-depth technical series: "How JavaScript Works" (10 parts), "How React Works Under the Hood" (9 parts, source-verified against React's internals), and a 23-part series on extending bpmn-io form-js in production. Published on dev.to, JavaScript in Plain English, and StackAcademia. I am an invited speaker at React Day Berlin 2026 (December 4 & 7, GitNation), where this will be my first conference talk.

Frontend Engineer at Netflix, where he builds internal products that support the lifecycle of movies and TV series - from planning and production to launch and promotion. With 7 years of experience in software engineering and a background in aerospace engineering, he is passionate about developer productivity, product-minded engineering, and practical applications of GenAI.