JavaScript experts, mentors, speakers

Pawel Sawicki is a freelance consultant and lecturer with a focus on distributed systems, and related areas such as software security and software architecture, especially in the context of mobile applications. On this way he discovered React and React Native several years ago and used them in a variety of professional projects for leading German companies, from small startups to large corporations. Pawel always strives to share the practical knowledge he has acquired in a didactically valuable way for the benefit of his clients and students.

Luis is a Senior Software Engineer at imgix, focusing on delivering the best images and video developer experience on the web. He’s passionate about open source and baseball (let’s go Bucs!). He's a defunct tech collector, amassing a now-useless pile of everything from eMate 400s to HD-DVD players.

Anton is the Director of Engineering at casavi. He's built and scaled teams, shaped tech organisations in the SaaS and B2C worlds. He has a passion for systemic approaches and helping people thrive and grow. He mentors other tech leaders helping their leadership journey go more quickly and smoothly. Outside of work, he enjoys hiking, mountain skiing, and family time.

I'm a graphic designer trying to become a front-end developer, I love design, being creative and participating in volunteer work.

I'm Sulagna Ghosh, a JavaScript engineer who loves working with React, performance optimization, web accessibility, and authentication. I enjoy solving tricky problems and fine-tuning rendering workflows to make web experiences as smooth as my morning coffee. When I'm not coding, you'll find me sharing insights through tech talks, lively discussions, and blogs. I'm always learning—whether it's a new programming language or the secret to the perfect masala chai. Always up for a good brainstorming session, especially if it involves code and caffeine.

Engineering Manager & Frontend SME @ eBay, ex Frontend Architect @ Marktplaats. Experienced Full-stack Web Developer with 20+ years in the field. Enjoy helping teams to build well-tested, high-performing, and secure software using Javascript, Node.js, React and Marko.js.

Adina Stoica is a full-stack software engineer at Bloomberg, where she works primarily on front-end items, both Bloomberg-specific and web. Originally from Romania, Adina moved to the United States for college. She obtained her bachelor’s degree in computer science from Bard College and her master’s degree from Washington University in St. Louis, where she specialized in computer vision. Prior to joining Bloomberg, Adina worked at Cerner Corporation (now Oracle Health). Adina is quite passionate about front-end development and improving user experience, and she tries her best to infuse this passion into her development work.

Chloé is a Tech Lead, Data Engineer and Full-stack Developer at Theodo UK. Having worked on several projects, Chloé has continuously expanded her experience by working with both startups and well-established companies. With a keen curiosity for exploration, Chloé frequently embarks on exploratory journeys into innovative data topics, journeys that she often shares through Twitter.

I am a freelance software engineer, instructor, and public speaker with over half a decade of hands-on experience in the entire software development process.

A graduate of the Polish-Japanese Academy of Information Technology. He is currently working as a Senior Software Engineer. He has been working in the industry for several years, developing large commercial projects and developing solutions for key clients. Front-end is his hobby and passion.

Mark Robustelli is an accomplished software engineer and technology leader with over 25 years of experience in architecting and implementing innovative solutions for a wide range of clients. Most recently, he has found a perfect fit that allows him to combine his love of technology with his passion for helping people as a Developer Relations Engineer at FusionAuth.

Mathieu has been a React Native software mobile architect for the past 4 years. He specialises in testing, especially on mobile. Recently, he's also been working on React Native for TVs.

Renaldi Gondosubroto is a Software Developer from Seek Limited, where he works on the backend of the home page which is accessed by all jobseekers who search for jobs on the site as well as the infrastructure which powers it. Previously he has worked as a .NET software developer for automobile companies and has been active within the research community; putting a lot of his research focus within IoT and virtual reality. Through his passion of developing software and contributing to the opensource community, Renaldi wants to encourage the innovation of new solutions to usher forward and promote a new era of innovations that can be used by everyone. Having spoken at 20+ events and conferences, he has also been active on the open source community for the past five years, building solutions on the cloud and sharing his experiences and projects.

Tech lead and coach at Theodo UK. Passionate about improving developer experience and building web apps without frustrations (for both users and devs).

I’m a software engineer working at Dynatrace and Pebblebyte, where I focus on frontend, DevOps, and making sure observability is everywhere. When I’m not deep in code, you’ll probably find me kitesurfing, road biking, swimming, or hanging off a rock wall. Whether I’m debugging or chasing wind, I’m always looking for that perfect flow.

Frontend Developer working on indie games and open source.

Samuel is a Generative AI Engineer with a strong desire to solve problems. He constantly works on developing new and creative AI solutions that push people's life & businesses forward. Motivated by his keen interests in technology and psychology, along with his dedication to doing excellent work, Samuel focuses on building AI solutions that improves people's lives by directly addressing economic issues. Being efficient and productive is extremely important to him, driving his goal to create powerful, leading AI solutions that bring about positive change.

Passionate about simplifying complex solutions.

Austin Fahsl is a senior engineer at Nx and a core maintainer of Lerna. With a background in enterprise web application development, his passion for building things is driven by a fascination for human psychology. Austin lives in Colorado and enjoys board games, craft beer, and live music.

Darrell is a senior software engineer and the GraphQL team lead at Neo4j, where he primarily works with TypeScript and of course, GraphQL! After many years of building GraphQL services, he has brought his passion for the technology to the company to build a library which will enable users to quickly get up and running with GraphQL and Neo4j. Darrell joined Neo4j at the start of 2021 following 7 years working in the public sector, which started with an apprenticeship where he learnt how to develop software. Darrell enjoys staying active by going to the gym and cycling, and plays Brazilian samba drums!

Obtained a PhD degree in Computer Science in 2015 at the Jagiellonian University in Cracow. CTO and founder of Codete. Leading and mentoring teams at Codete. Working with Fortune 500 companies on data science projects. Built a research lab for machine learning methods and big data solutions at Codete. Gives speeches and trainings in data science with a focus on applied machine learning in German, Polish, and English. Used to be an O’Reilly trainer.

"Passionate Software Engineer with a strong background in technology and a desire to constantly learn and grow and share. Omar has always been fascinated by technology since a young age and aspired to turn his passion for programming into a career. At the same time, he has a strong passion for marketing, funnel optimization, product development, and business. He dedicates a portion of his time experimenting with new solutions in these areas on projects that interest him.

Co-Founder and CTO of voize. Loves to build products that make people's lives easier.

David is a Developer Advocate at Shopify, and previously a tech lead for an ecommerce agency. He is new to Shopify, but brings ten years of ecommerce and software experience with him to help foster relationships with Shopify and the developers using the platform.