JavaScript experts, mentors, speakers

Staff Engineer at Ibotta, formerly co-founder and COO of OctoShop before its acquisition by Ibotta.

Sergio Mendonça is an engineering leader and former CTO with a strong background in hands-on architecture and distributed systems. He is currently an Engineering Manager at Delivery Hero (Pandora) in Berlin, where he leads teams working on mission-critical order and settlement systems. Previously, he co-founded and served as CTO of Mettzer, an edtech platform, where he led product scaling, payments/subscriptions, and engineering operations.

Paul is a Senior Developer Experience Engineer at Sentry.io. He has a background that spans engineering, product management, and UX design. He has a soft spot for dev tools and loses sleep over making things easy to understand and use.

Hema Sai Charan Kothamasu is a Lead Software Engineer with over a decade of experience building Android, Flutter, React, and developer tooling solutions. He is an active community organizer and technical speaker who regularly shares practical engineering insights through conferences, workshops, and developer meetups. His work focuses on developer experience, engineering productivity, and building tools that help developers better understand modern applications. His latest project, Inspectra, explores new approaches to runtime inspection, source navigation, and developer workflows for large frontend applications. When he's not building software, you'll usually find him mentoring developers, contributing to developer communities, or experimenting with AI-powered engineering tools.

Anemari Fiser is a tech leadership trainer, coach and O’Reilly author of Leveling Up as a Tech Lead. With over a decade in tech, she has coached 500+ engineers and trained 400+ tech leads worldwide, and shares practical leadership insights on LinkedIn with a community of 30,000+ tech professionals.

Murat was born in Turkey and has lived around Chicago for over 20 years. He graduated from Illinois Institute of Technology with a computer engineering bachelor's and contributed at Siemens for over a decade. He is married with two daughters; 9 and 11 years old. He lives to do corrective deeds; learn, teach, fix what is broken, improve and optimize all things around at work, open source, and home life. He is a tech enthusiast in love with testing, development, devops, web and cloud. Currently he is a Staff Engineer & Test Architect at Extend.

Anna Backs is an APM consultant and software developer working for codecentric. When she is not outside with her dog or absorbed in the world of Shadowrun, she is usually found building some thing or another in JavaScript. She loves coffee, good stories and learning new things.

Software Engineer with 10 years of experience in the information technology, financial services industry, and public sector working on multi-million-dollar products. Shivangi is passionate about promoting women in tech and helping them get paid more.

My name is Carlos Fuentes and I am a Software Engineer with experience in designing cloud-native architectures, distributed systems, and IAM. Actively open-source contributor and maintainer of Fastify, Undici and Piscina, and currently employed at Auth0/Okta as a Senior Software Engineer.

Andrew is a theatre kid turned software developer. He got his BA in psychology and theatre from Hobart College and his MA from the University of Central Florida. After a range of disparate adventures including acting, consulting, teaching, and recruiting, he attended the full-stack software engineering program at Thinkful, after which he joined Bitovi as a React Developer. Andrew consults for Fortune 500 companies like Yum and Aflac, helping them build high performing and scalable React applications Originally from Massachusetts, he currently lives with his partner in Buffalo, NY. In his free time you'll probably find him cooking, reading, board-gaming, skiing, or cheering on the Boston Bruins. Mostly just that last one.

Saki is a seasoned software developer with decades of experience, specializing in JavaScript and modern web technologies. He has led the development of numerous web applications across various industries, blending deep technical knowledge with hands-on problem-solving. As a consultant and trainer, he supports teams in building scalable, high-quality solutions. His passion is sharing knowledge and promoting clean, maintainable code.

Principal Frontend Engineer at Zattoo | React Berlin Meetup Organizer | Crafting symbols for over a decade 👨‍💻✨

DevOps, Agile/Scrum and Continuous Delivery coach especially within enterprise organizations. Improving people, processes and techniques is what I constantly do. In the end it's the results that matter!

Known as TiKevin83 online, Travis McGeehan is a Senior Software Engineer at GFS in West Michigan specializing in frontend optimization during the day and with a knack for video archival techniques from years spent organizing the TASVideos and TASBot communities and making retro game TASes.

Rick is a Senior Software Engineer at Bloomberg working on JavaScript tooling and infrastructure, and a delegate for TC39, currently thinking about immutability in JavaScript!

Software Engineer at Stellate, passionate about problem solving and company building, using GraphQL, JavaScript and React

Kyle Simpson is a human first and then an engineer. His mission is to show the world that the culture of empathy and relational information exchange are keys to unlocking the full potential of every human in the workplace. JS and open web technologies are among Kyle's favorite tools to augment human endeavors. Kyle has published 10+ books on JS, taught thousands of developers from teams around the world, and his training videos have been watched over 750,000 hours. He's still fighting for the people behind the pixels.

I'm currently working at Wix.com as a software engineer in the very exciting Wix’s Data Science group. I'm an open-source enthusiast, have a fetish for web performance, love technology at its best when it's visual, and… mixing techno sounds at night!

Michal is a full-stack software engineer at Convex, who’s worked on all aspects of the Convex platform: From marketing and documentation to client and server libraries, authentication, database implementation, provisioning orchestration and billing. Previously he worked for 7 years on new products at Meta.

Brendan is a senior software engineer working on graphics and the web platform for Unity Technologies, where he combines his love of creativity and technology. Before Unity, Brendan has 20+ years working in animation studios such as Disney, and technology companies such as Google.

Co-Founder, Entrepreneur, Software Engineer, Consultant, Trainer I am passionate about technology and building products that solve real world problems. I love to teach people how to code and get them started on their coding journey. I've held many workshops and guided students into the world of programming. My passions include building products, learning new things, sharing my knowledge, and helping others.

I’m an AI Agent Developer who has been coding with AI for the past six years,starting from the early days of GitHub Copilot. As one of Copilot and Cursor’s earliest users, I now primarily work on building coding agents and run workshops across different domains and speak frequently on AI productivity, helping developers unlock the full potential of AI-powered tools. My expertise spans the full generative AI pipeline, from fine-tuning models and optimizing prompts to running rigorous evaluations and building scalable agents. Grounded in a strong background in test architecture, I design AI agents that balance complexity with reliability. I focus on constantly refining and optimizing these systems to push the boundaries of what modern AI software can achieve

A gal who wants to create awesome stuff. A problem solver and allround web developer. I‘m a senior programmer with good knowledge of front-end techniques. I love algorithms, data structure and I also stand for quality. I believe in nudging things forward — thoughtfully and intentionally. Asking ‘what if’ as often as possible, constantly challenging standards, and experimenting endlessly.

Yshay Yaacobi is the co-founder and CTO at Livecyle, an early-stage startup that specializes in collaboration on top of live environments. Yshay has more than a decade of experience with web and cloud technologies, has given local talks about various technologies and is co-organizer of the Rx-Israel meetup group. He is passionate about programming languages, functional programming, cloud and system architecture. Yshay is extremely interested in open source, and is the lead developer of Tweek (git.io/tweek) - a cloud native open-source feature manager. Over the last few years Yshay has been using Docker and Kubernetes heavily and has also given sessions in several cloud-native/devops meetups and events.