JavaScript experts, mentors, speakers

Yishai Beeri likes to solve problems, and that’s why he was so fascinated with programming when first encountered Logo back in the 80s, where the possibilities seemed endless. He has made it a focus of his career to solve complex programming problems, both as a consultant and entrepreneur. In 2014 he joined the CTO office of a fast-moving cloud security startup, which later was acquired by a networking giant. At this startup he also met Ori Keren and Dan Lines, now co-founders of LinearB. He joined them shortly after the company was established, in order to get back to what he loves most about engineering, solving big challenges, and this time he is focusing on the world of Dev Productivity and Experience. He is also the host of the very successful Hebrew Podcast - Dev Interrupted.

Dr. Nikita Golovko is a seasoned Solution Architect with over 16 years of experience in designing scalable, secure, and cost-effective software architectures for industrial and business-critical systems. With a strong academic background and research in machine learning, he bridges the gap between advanced AI technologies and real-world applications on the shop floor. Nikita has led full project lifecycles—from requirements and architecture design to deployment—ensuring compliance with security and industry standards. He is known for translating business needs into robust architectures and aligning cross-functional teams. Passionate about innovation and sustainability, he focuses on applying AI, IoT, and edge computing to drive continuous improvement in industrial environments.

Liang Gong works at Meta on building and optimizing web and developer infrastructure, with a focus on improving performance, memory efficiency, reliability, and user engagement. He is the creator of the open-source project MemLab and holds a Ph.D. in computer science from UC Berkeley, where his research was in the area of programming languages, software engineering, and JavaScript program analysis.

John Robert is a Senior Data & Machine Learning Engineer at Sunnic Lighthouse (Enerparc AG), working at the intersection of data engineering, machine learning, and cloud platforms. He previously contributed to autonomous driving projects at Bosch and Mercedes-Benz, gaining hands-on experience with safety-critical AI systems. John is a frequent speaker at conferences such as PyCon, PyData, and Data Native, with a focus on AI safety, transparency, and trustworthy machine learning. Outside of work, he enjoys traveling and building projects like PetWorld+ and SpreadsheetProAI, etc

Oli is currently a Frontend Engineer & Tech Lead at Cleo working across the mobile (React Native) & web (React) products. He sits within the savings squad whose mission is to help Cleo users build a safety net of savings.

Engineer Graduate, Software testing ISTQB certified and professional experience as a Software Developer. Current Solutions Engineer as Snyk.

Nica Mellifera (She/Her) was a developer for seven years before moving into developer relations. She specializes in containerized workloads, serverless, and public cloud engineering. Nica has long been an advocate for open standards, and has given talks and workshops on OpenTelemetry and Kubernetes architecture.

Jemima Abu is a self-taught front-end developer, Google Developer Expert, Microsoft MVP, and Certified Professional in Accessibility Core Competencies. She is passionate about diversity in technology and accessibility in web development.

Hadar is the co-founder and CTO of Myop, a developer-first platform transforming how UI and UX are built, controlled and optimized in production. Hadar brings over 15 years of hands-on development experience and a deep focus on frontend infrastructure. Over the past decade, he’s led engineering teams at some of Israel’s top tech companies. At Wix, Hadar served as an architect and then head of the frontend guild, managing over 700 developers and helping shape the company’s core frontend systems. Prior to that, he held senior R&D leadership roles at Jive Software and Rafael, driving large-scale frontend development across complex products. A Unit 8200 alum, Hadar brings not only technical depth but also a strong understanding of organizational scale, cross-team architecture, and how to evolve legacy systems. His experience spans both building systems from scratch and leading long-term frontend transformations in high-growth environments.

Hello, my name is Shivakant Shukla, and I am a MERN stack developer with four years of experience in creating dynamic and user-friendly web applications. My passion for technology, coupled with a strong foundation in front-end development, has been the driving force behind my career. In the realm of Front-end development, I excel in crafting interactive and responsive user interfaces using technologies such as React, Redux, JavaScript, HTML5, and CSS3. I take pride in my ability to transform design concepts into functional, pixel-perfect websites that provide exceptional user experiences. Whether it's optimising performance, ensuring cross-browser compatibility, or enhancing accessibility, I am committed to delivering high-quality front-end solutions. While my primary expertise lies in front-end development, I have had the opportunity to work with back-end technologies like Node.js, Express.js, Nest.js, and MongoDB.

Generative AI Engineer and Product Manager, working in IT for the past 13 years. MSc. in AI Engineering. Founder of CEE AI Hub, AI venture building and local communities booster. I worked in corporates (Microsoft, Cisco) and startups (edrone, kontakt.io), finished my full-time working as a Product Director. I am helping companies implementing Generative AI features / products and building product (engineering) teams. IoT and homelab enthusiast. I own a vineyard

Omri is a Tech Lead at monday.com with over a decade of industry experience. For the past several years, he has been part of the DevTools group, focused on building user-friendly, well-documented tools that enhance developer efficiency and satisfaction.

Łukasz Jaźwa, CTO at Workflow Builder. Passionate about diagramming and algorithm design, with a strong focus on graph theory. Loves escaping to the mountains for a good trek after hours.

Phil is Head of Developer Relations at Deno. With a passion for browser technologies, and the empowering properties of the web, he loves seeking out ingenuity and simplicity, especially in places where over-engineering is common. After 25 years of building web applications for companies such as Google, Apple, Nike, R/GA, and The London Stock Exchange, Phil has worked to challenge traditional technical architectures in favour of simplicity and effectiveness. Phil is co-author of “Modern Web Development on the Jamstack” (O’Reilly, 2019).

Webmaster before it was cool, pixel pusher, javascript-something, conference organiser, father of two, but mostly known for yelling at clouds.

A serial tools builder, I'm super passionate about creating a magical and seamless developer experience. Have been working on creating tools, infrastructure and systems for developers over the past 7 years, and going strong!

Mateusz is a Principal Software Developer at Workflow Builder with seven years of experience in React. He specializes in building data visualization solutions and interactive diagramming interfaces. He combines technical expertise with a business focus to develop practical, high-impact applications.

Samiul Huque is a senior software engineer at Bloomberg, where he works on the company’s Instant Bloomberg (IB for short) chat tool. He works across the stack, building full-stack products where he primarily uses a combination of JavaScript/TypeScript and Python. Outside of work, Samiul plays tennis, competes in MMA, and eats his steak medium rare. Samiul earned his bachelor’s degree in economics and mathematics from the University of Richmond.

I like to introduce myself as a hybrid — part Enterprise Architect, part Senior Solution Architect. I thrive at both ends of the spectrum: shaping strategic E2E target state architectures and rolling up my sleeves to prototype Industrial IoT, AI and Edge solutions with expertise on Azure, AWS and Google Cloud. I’m passionate about solving complex problems, building future-ready platforms, and delivering impact across the products that we build.

I'm a seasoned Product Manager with over five years of experience in a leading digital media company, where I have overseen the development and scaling of multiple high-traffic news platforms built on React. With an engineering background from a prestigious government college in Delhi, I bridge the gap between technical innovation and business strategy. Their expertise spans real-time user management, subscription lifecycle optimization, and cross-functional team leadership. I'm passionate about sharing actionable insights on building robust, scalable, and user-centric React applications that thrive in fast-paced, high-demand environments.

Shaundai is a front end Senior Software Engineer (Netflix) based in Georgia, US. Through her work as a course instructor (tsforjs.com) and her YouTube channel (youtube.com/shaundai), she aims to make programming interesting and approachable for all.

J. B. Rainsberger (@jbrains@mastodon.social) is a professional 5-pin bowler who enjoys consulting with software development professionals and the companies that employ them. He guides companies to better results from their software projects while he helps individuals work with less stress. He wants everyone to actually realize the promised benefits of Lightweight approaches to software development, which includes making sense of the "Agile" chaos of the past quarter-century. Companies engage him for remote working sessions, training courses, on-site workshops, and in-person consulting visits. Individuals, especially those stuck in companies that don't have the budget for formal consulting, can get the help they need by joining J. B.'s mentoring group by visiting https://experience.jbrains.ca. (Quite often, they can convince their employer to pay for that!) He lives in Atlantic Canada with his wife, Sarah, who is busy showing the Open Source world how to have quality documentation even with a mostly-volunteer project community. They travel to Europe less often than they used to, which makes each visit even more enjoyable.

Evangelia Mitsopoulou is a seasoned tech professional with nearly two decades of experience in software engineering, with a specialization in frontend development for the past 12+ years. She has a strong full-stack engineering foundation and a background in semantic web and linked data engineering, which informs her approach to building intelligent, structured systems. As the founder of her own academy, Evangelia blends her expertise in frontend software engineering with instructional design and cognitive load theory to create learning experiences that help engineers master complex concepts efficiently and retain knowledge effectively. Her career includes roles at prominent European organizations such as Elastic, ETH Zurich, Google, EF, and several fintech startups. Alongside running her academy, she advises startups as a fractional expert, helping them navigate technical challenges and scale successfully.

Abeetha Bala is a seasoned Product Leader, with over a decade of expertise in cloud computing, observability, and enterprise software. Over the past several years, she has played a pivotal role in shaping and enhancing Amazon CloudWatch Logs, leading multiple high-impact initiatives for AWS customers worldwide. In addition to her technical leadership, Abeetha is actively involved with TechWomen, a US Dept of State initiative that empowers emerging women leaders in STEM fields worldwide. Through this initiative, she mentors aspiring Emerging Leaders, sharing her technical expertise and experiences to foster diversity and innovation in the tech industry.