JavaScript experts, mentors, speakers

Nico is the Senior Director of Solutions Engineering at Rollbar. He has spent over 13 years working with companies around the world to improve their software development lifecycle focused on quality critical applications. His passion is helping teams deliver quality products to market faster. “Do what you love and love what you do!”

Software Engineer for more than 15 years, UX designer and programming languages instructor, I've worked in many types of product, from commodities to retail, from media to eSports. At Vercel, I help pre-sales to architect the best technical solution for our future customers.

Hi, I’m Henrik Fricke. I’m a software developer at WakeSys, focusing on web and serverless technologies. I like to give talks and workshops at conferences and did that also at clients when I tried my best to be a professional AWS cloud consultant.

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

Syed Kadar Ansari is an Engineering Manager leading Growth Marketing Technology engineering, working at the intersection of engineering, data, product, and business teams. He focuses on scaling practical AI adoption across engineering workflows, helping teams improve delivery, collaboration, and decision-making in the AI era. Syed is also the author of a book on Amazon Bedrock and generative AI applications, where he explores how teams can build, integrate, and scale AI-powered solutions in real-world environments.

Renaldi Gondosubroto is the Director of Cloudetica Solutions, where he leads the building of open-source solutions on cloud platforms. He brings over a decade of software development experience and has been active within the research community; putting a lot of his research focus within IoT and virtual reality. He is the author of three technical books, including "Using Amazon Bedrock: Learn to Architect, Secure and Optimize Generative AI Applications on AWS" published by Wiley. Having spoken over 50 events and conferences, he has been an international speaker for the past six years, sharing his experiences and projects. He also currently is an AWS Subject Matter Expert (SME) for its Professional, Associate and Specialty Certifications and holds all 14 AWS certifications. He aims to build open-source solutions which can both help people achieve more value in what they do and promote best practices for fellow developers.

Armin is a passionate creator by heart, driven by innovation and the power of technology. As a Senior Software Engineer at TechMiners, he crafts cutting-edge tools that empower seasoned tech analysts to deliver unparalleled insights to clients. With a flair for both art and code, Armin finds joy in every challenge, making an impact no matter the medium or toolset.

Valentin just started to work at Unity3d in Helsinki as Full-Stack Software Engineer. Before that he worked at Mapbox R&D center in Minsk, Belarus. Experienced in Typescript, SQL, .NET, Angular, React, NodeJS, NestJS and other interesting stuff in full stack software development. He loves modern web technical stack, but strongly believes in understanding of fundamental aspects of programming. He likes code writing, work in amazing and useful projects, which can bring something valuable to people. His spare time is mostly dedicated to his family, reading and writing, and also traveling is important part of his life!

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.

Sophie is a software developer at Donut where she champions testing and accessibility. And ensures there's a steady supply of office donuts.

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.

Engineering Lead at Fiberplane, working on devtools for humans and agents.

Tech lead at Visma e-conomic, developer at heart and frequent speaker at conferences, user groups and local events. Started in QBasic, went through C++ to C#, finally settled in...full-stack? He spends most of the time at the keyboard typing yet another demo or application. If you take his keyboard away from him, he will talk endlessly about code...and functional programming. Been coding for over a decade to know if something is a programming fad or not. And no, functional programming is not a fad at all. Strong proponent of Open Source and all things chocolate.

Helping startups outperform their competitors (using DevOps). Programming since the age of 12 (with breaks here and there, don’t worry). Operating high-scale systems since 18, and obsessed with DevOps since 20. Exploring new ways for startups to enjoy DevOps, and writing about it on my website. Occasionally playing guitar in jam sessions, and eating sandwiches in a different kind of jam sessions.

I am an experienced software and DevOps engineer, enjoying frontend technologies the most. With a demonstrated history in building software products in the frontend, backend, and mobile technologies. My favorite technologies are React.js, Node.js, and recently Vue 3. Currently leading the team of 100+ developers as a Head of Technology at Monterail.

I'm a lead developer and open source fanatic working at Info Support. I love everything related to testing and test quality and I am one of the co-founders of the mutation testing framework 'Stryker'.

Software engineer. Passionate about web performance.

Senior Developer from Germany with over 15 years of experience building web apps and leading frontend teams, currently living and working down under in Australia. Pragmatic perfectionist, always looking for opportunities to learn and grow.

Vinicios Neves is a senior software engineer and educator passionate about building inclusive, performant, and accessible experiences on the web. With over a decade of experience, he helps teams ship React applications that scale — in code quality and in impact. Outside of coding, he shares insights on architecture, testing, and accessibility through talks, articles, and hands-on courses. Currently based in Portugal, he believes the best code is the one everyone can use.

Niya is a Software Engineer at Healthie, primarily working on the front end. She is passionate about user experience, performance, the cool shit you can do with javascript, and a good cup of coffee. If she is not coding, you can find her binging anime or reading manga.

Experienced JavaScript Software Engineer with 7 years in the industry. More skilled in Front-end Development, with high level of experience in working with Micro Front-end architecture, designing projects as a set of standalone components that include their own interfaces, logic, and storage, developing mini-applications independently, and composing them all together in the browser with different integration techniques. Passionate about web performance and ensuring the best possible User Experience of web applications.

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.

Hi, I'm Yashpreet Bathla, a Senior Software Engineer at ClickHouse and a React enthusiast passionate about building scalable, high-performance web applications. 🎤 React Nexus 2024 Speaker: https://youtu.be/G2ga9h5U4h8?t=20479 Over the years, I've worked at Microsoft, Amazon, Tessell, and now ClickHouse, building design systems, developer platforms, and large-scale frontend applications. My work spans React, TypeScript, Material UI, Fluent UI, Axios, OpenAPI, and frontend architecture, with a strong focus on performance, developer experience, and UI engineering. I'm also the creator of UI Sheet (https://uisheet.com), a platform that helps developers prepare for frontend interviews with curated React, JavaScript, TypeScript, HTML, CSS, and system design resources. I enjoy sharing what I learn through conference talks, open-source contributions, and technical content to help developers build better software.

Passionate about web development for a long time, I have been involved in open source for the companies I worked for with a lot of satisfaction. Always curious to learn new things, not limited to typing code on a keyboard. I am actually looking for better ways to design and model software, as well as working in teams.