JavaScript experts, mentors, speakers

Lenny is a Solutions Architect at Apollo Graph in San Francisco, CA. He was previously a software engineer and graph champion at Square. When he’s not thinking and talking endlessly about GraphQL and frontend, he’s probably trying to recreate some dish from a YouTube cooking video or hanging out with his wife and son.

Johan Eliasson is CEO & Co-Founder of Nhost. Johan has been building apps his whole life and is passionate about making it easy to develop web and mobile apps. Prior to Nhost, Johan helped grow his family business, driving innovation in the Swedish water treatment market. Johan graduated from Blekinge Institute of Technology with a Master of Science in Computer Security, Computer & Information Systems.

Adam Jahr is the co-founder of Vue Mastery, the ultimate learning resource for Vue developers and the biggest financial backer of the Vue framework. As an e-learning educator, he has taught hundreds of thousands of developers worldwide and teaches live at conferences across the globe. Adam is a proud Vue.js Community Partner. When he isn't teaching Vue, he enjoys creating interactive art installations.

Senior Developer at Wunder.

Chinmay is a Technical Evangelist at Epsagon with experience in data center and cloud technologies. Previously, he worked at companies such as Intel, IBM and early-stage startups. Chinmay has an MS in Computer Science from Columbia University and an MBA from UC Berkeley. In his free time, he loves traveling and exploring restaurants.

I'm a Staff Software Engineer at Uber with ten years of experience in software design and development. My expertise lies in building scalable systems, particularly in areas like Generative AI applications and config-driven automation.

Anna is a visionary, performance-driven marketing professional with a decade of experience building and leading dynamic marketing teams at technology companies. Anna holds a steadfast belief that the evolution of technology paves the way for societal progress and reinforces the essence of humanitarian ideals. Skilled in harnessing the power of artificial intelligence in marketing, she sees it as a key to enhancing outcomes while streamlining resources and efforts. WomenInTech Mentor helping women break into the tech field with expert mentoring advice and support.

Wowa Effect aka Wowa Barssukov revives the art of creating music with knowledge and analog instruments. His unique tracks originate from a combination of retro synthesizers, drum machines, and samplers. He transcends mood into music, no exact recreation possible when playing live; all sounds originated by hand. His debut performances were underground raves and house parties in 2018. His musical knowledge is based on classical Russian music education. Growing up in Siberia in the ’90s, his childhood was filled with communism, the sense of upheaval, and the upcoming of an underground raver scene. He started his electronic music journey under the name ‘Limpfate’ in 2017 first by creating his tracks with Ableton Live, until growing bored of the unengaging production. He then discovered analog synthesizers and drum machines, which shaped the sound of the electronic music scene in the ’90s, and spent countless hours on mastering the complex devices. This art of performing allows Wowa to explore the vast horizon of electronic music. Therefore his sounds vary from ecstatic electro over the groovy house to deep techno. His tracks take the listeners on journeys through the unknown, full of surprising details. When watching Wowa perform, you will notice a set of blinking lights, cables, and his straight face. When Wowa plays, it’s without exception, live. Wowa now lives in Berlin, close to the pulse of the original German techno scene with its renowned Berghain.

Sia Karamalegos is a freelance web developer and performance engineer. She's also an international conference speaker, writer, and Google Developer Expert in Web Technologies. She organizes the Eleventy Meetup and co-organizes the PerformanceObserver meetup.

Systems Engineer, Emerging Tech & Incubation @ Cloudflare. Helping you internet your things. Equally as likely to be hacking on a Raspberry Pi or baking one.

Develop professionally for 13 years. Worked as a team lead at Deloitte and Nielsen. Currently I lead my own tech company Tourmaline Core. I am passionate about people self-development culture at tech. I am a PhD.

Anton is a Senior Software Engineer at Affirm, specializing in building robust and scalable JavaScript solutions. Outside of work, Anton actively contributes to the tech community by helping organize Vancouver JS, fostering developer learning and networking opportunities.

James is Co-Founder and CEO of ElectricSQL. Prior to founding Electric, he co-founded the Post Urban venture builder and was co-founder and CTO of synthetic data company Hazy.

Aikerim Belispayeva is a Senior Analyst at Memorial Healthcare System, where she leads data-driven initiatives to improve hospital billing accuracy, detect improper payments, and modernize revenue cycle management. With a Master’s in Data Analytics and a strong background in SQL, Python, and EHR systems like EPIC, she works at the intersection of data science, healthcare finance, and regulatory compliance. Aikerim brings a unique perspective to the tech world — blending deep industry expertise with hands-on analytics to advocate for smarter, more user-centric data tools. She is also a recognized speaker and award-winning advocate for using data to drive impact in public health systems.

Tom is the Chief Product Officer at Vercel leading Engineering, Product, and Design. Previously he spent over 12 years at Facebook where he led development of the company’s core JavaScript Infra, shaped its open source program, and was responsible for the creation and development of React and React Native. He enjoys traveling, dance music, fancy cocktails, and simple food.

Ido Moshe is a software engineer with over a decade of experience building scalable web applications and developer tools. He currently works on charting libraries at AG Grid, focusing on clear, high-performance data visualization. He has led front-end architecture across diverse domains, with a focus on building modular UI systems, streamlining development workflows, and reducing complexity in evolving codebases. His work emphasizes maintainability, clarity, and thoughtful abstraction.

Ewa is a Developer Relations Engineer in the Google Chrome team. She is a passionate frontend engineer deeply involved in the development of new Chrome and Web Platform features. Driven by a desire to empower developers, she focuses on creating tools and improvements that streamline workflows and enhance the overall web development experience.

Daniel Goren is a lead researcher at Evinced, a pioneering company specializing in automating the detection of accessibility violations. With 6 years of experience and a deep passion for accessibility, Daniel is committed to driving innovation and best practices in the industry.

At the age of just 29, Katharina is Head of IT at hylane, a rental company for hydrogen trucks. She previously worked as a software developer and data engineer at WetterOnline for 9 years. In her work, she places a special focus on sustainable corporate IT and will share her experiences.

I'm Shubham, a Software Engineer at Headout who loves to experiment with different technologies and use them to create useful applications. I'm particularly fond of TypeScript, Web Performance, Frontend Tooling and I'm always ready to engage in a friendly debate on the topic of aliens' existence. As an engineer, I'm passionate about continuous learning and personal growth, and I always make sure to stay up-to-date with the latest developments in my field. Collaborating with my colleagues and learning from their expertise is something I enjoy. I'm always looking for ways to improve my own skills and contribute to the success of the team.

Amit Mandelbaum is a tech lead at AI21 labs, prior to joining AI21 labs Amit was an entrepreneur in the field of GenAI and a Director of AI at Nvidia. Amit is also an Angel investor in the field of AI and is a known keynote speaker and consultant on GenAI agents.

Jarred is a Technical Lead at ADB Safegate, where he leads the development of the Intelligent Apron suite of products, which are aimed to increase the performance and safety of airport operations, while lowering the environmental effect aviation has on the world. Originally from the US, he is now based in Malmö Sweden where he serves as a mentor to multiple teams across Europe, and is passionate about solving complex problems while teaching others along the way.

VP R&D @ Fijoya. An experienced manager and engineer, with more than two decades of experience in the world of development, from enterprise companies to early stage startups

Charly Gomez joined Sentry in 2024 as a Software Engineer. He builds, breaks, fixes and maintains Sentry's JavaScript SDKs out of the city of Vienna, while having also lived several years in Spain and Italy. Charly enjoys salsa dancing, and plays a host of sports, including sailing, padel, cycling, football and is a CrossFit enthusiast.