JavaScript experts, mentors, speakers
Explore personalities and their talks, workshops, videos, and articles. While we focus primarily on JavaScript and frameworks like React, Vue, Svelte, and Node, you may find experts on other fields on our Portal. To name a few – Testing, DevOps, Machine Learning, and many more!

Douglas Marques
Codeminer42, Brazil
Douglas has been working at Codeminer42 since 2020, taking part in several projects since then, tailoring solutions and providing consultancy on customer's systems. Worked in systems that required queue management for data fetching and ingestion, and scheduling tasks, from financial and blockchain-related solutions to e-commerce platforms.

Richard Roggenkemper
Sentry, USA
Richard is a Senior Software Engineer at Sentry on the Issues team, where his recent projects include redesigning the Issues UI and creating LLM-based Issue Detection. In his free time, he enjoys cooking, skiing, and being disappointed in the Ferrari F1 team.

Todd Schiller
PixieBrix, USA
Todd Schiller is co-founder and CEO of PixieBrix. He’s spent the past 15 years building AI, data science, and software engineering tools for large enterprises and hedge funds. He earned his PhD in Computer Science from the University of Washington.

Yomi Eluwande
Polar Signals, Germany
I'm a frontend engineer at Polar Signals working on continuous profiling visualization tools. When I'm not coding, I enjoy watching The Office and taking pictures on my analog camera.

Noah Yamamoto
Meta, UK
I'm a frontend developer currently @ Meta. I love making cool things on the web with a focus on performant, satisfying UX. Recently moved to London to build a brand new AI-powered design system for WhatsApp.

Oleksandr Tryshchenko
Personio, Netherlands
Oleksandr Tryshchenko - Senior Engineering Manager @ Personio
He has experience with micro-frontends across three SaaS companies.
Initiated and led the migration of FreshBooks from a monolithic UI to a micro-frontends architecture.
Currently, he serves as a Senior Engineering Manager at Personio, where he leads the efforts to migrate the entire organization, which encompasses over 130 micro-frontends, to a new design system.

Joban Singh
Microsoft, India
Hey, I am Joban, and I am currently working as a software engineer at Microsoft Azure. I have been developing planet-scale backend services for the past 2 years and would like to share my experience with Microsoft Orleans Framework, we have been using at Microsoft Teams.

Dhrubesh Deb Sharma
Allganize, India
Frontend Developer at Allganize, Host at The Junior Developer Podcast.

Iker Jusue
Fractional / Interim Talent & People Leader, UK / Spain
Iker Jusue is a freelance advisor, consultant, and people leader in the UK and Spain. He has more than 10 years of professional experience leading talent acquisition and human resources teams and projects across Europe and North America, specializing in sourcing, operations, talent insights, diversity, employer branding, and HR technology. He has worked with companies such as Microsoft, McKinsey, IQVIA, Oracle, or ThoughtWorks, or start-ups as Alan, Casumo, and Silicon Gears (TTTech Auto). He is also the first non-native English speaker to win the SourceCon Grandmaster title in 20191, as well as the first Sourcing Summit Europe Hackathon winner in 20172. He helps business and HR leaders to enhance their teams and strategies with his expertise and guidance in people and talent acquisition. He is passionate about finding innovative solutions for the challenges of the modern workforce.

Emanuel Scirlet
AWS - Sr. Cloud Application Architect, Switzerland
I'm Emanuel - Sr. Cloud Application Architect at AWS and I am helping customers to build modern, secure and scalable application on AWS. I evangelize the user of serverless technologies to allow customers to focus on their business.

Abde Ali Lokhandwala
Booking.com, Netherlands
Distinguished Game Developer and Backend Engineer with a solid track record of 8+ years in constructing sophisticated APIs, microservices, and libraries, and a specialized focus on game design and development. As a Senior Software Engineer at Booking.com, a premier global travel accommodation provider, I am leading the way for tech stack modernisation, shaping the architectural vision and technical strategy, and building recommendation & ranking systems that support 10 million users per day. Furthermore, I am mentoring engineers and fostering a thriving technical environment.
My experience extends to developing compelling games and interactive experiences, having designed intricate game worlds using procedural generation and artificial intelligence. My expertise in JavaScript and Python game libraries, combined with my knowledge of AI and ML models, equips me to leverage the power of generative AI in creating immersive gaming environments. This unique blend of skills ensures I am at the forefront of innovative game development, thereby enhancing the gaming experience for players across the globe.
My foray into game development commenced at Lazy8Games as a Software Engineer, where I designed and prototyped scalable, reliable game interfaces using Unity Engine and Photon Networking.
I have a history of creating award-winning, visually compelling and technically challenging games such as:
"Dystopian Skies" - recognised as the #1 Mobile Game at an inter-collegiate game-dev competition. It is a multiplayer 3D game set in a post-apocalyptic scenario, using a variation of the ROAM algorithm for earth simulation. In the game, players combat space drones to reclaim infested land on earth.
"Arcane Aero" - A side-scrolling action arcade game for Android, developed as part of an entrepreneurial project Blooming Pixel, and live on the Google Play Store.
In my subsequent role as a Software Engineer, I designed and developed intricate engineering applications using multiple programming languages and frameworks, including Java, C++, OpenSceneGraph, OpenGL, Qt, and C# across Windows, Linux, and Android platforms. Here, I particularly worked on GIS Applications, where I developed modules in the digital graphics domain, leveraging my understanding of performance graphics, a crucial component in game development. I also designed a GPS-based tracking application on Android with map caching, besides maintaining a software SDK stack on Linux.
My technical prowess extends to Service reliability, System design, Kubernetes, Java, Kafka, Protobuf, BigData platforms (Apache Hadoop/Hive/Oozie/Spark), C#, Python, Perl, MVC Frameworks, JavaScript Frameworks, and Android app development, backed by an engineering degree from IIT Bombay (Mumbai), a leading engineering university in Asia.
As a thought leader, I enjoy exploring and speaking about the intersection of AI, game development, and backend engineering, and frequently share these insights through technical speaking engagements. My other passions include chess and alpine skiing. Continually pushing the envelope in the gaming industry, I relish the challenge of crafting unique gaming experiences through the power of generative AI.

Tom Northall-Little
Canva, Australia
Tom is a Senior Software Engineer at Canva, based in Sydney. He has worked on Canva’s Apps SDK for the last few years, working across the stack to deliver the APIs that Canva’s growing developer ecosystem loves.

Artemis Leonardou
Kanoparty, Greece
I’ve been building digital products since I was 14, driven by a deep curiosity to turn ideas into tools that solve real problems. One of my first personal projects was an AI tutor I built to prepare for Greece’s national exams. Using it daily helped me score in the top 0.1% nationwide without external instruction. I documented the journey in a YouTube video that’s now been viewed over 50,000 times.
Over the past few years, I’ve contributed to open-source projects, shipped production-ready tools for startups, and participated in 10+ hackathons where I built functional apps in just days, earning several first-place finishes. I thrive in fast-paced, problem-solving environments and love creating technology that moves quickly from prototype to real-world use.

Maxim Nam
Tele2, Kazakhstan
Tele2 Kazakhstan, Front-end TeamLead, 10 years of web development, in love with project transformation and refactoring React based applications.

Itai Hanski
Descope, Israel
For more than twelve years, Itai has been creating on the full spectrum of software development. Anything from simple POCs to intricately complex systems, from native mobile development to fully fledged backend architecture, from libraries and SDKs to client facing applications.

Weslley Araújo
weslley.io, Brazil
Weslley Araújo is a MySQL2 maintainer and the creator of Poku. He builds and maintains widely adopted supply-chain dependencies in the JavaScript open-source ecosystem.
Recognized as a Microsoft MVP, he focuses on developing for developers, sharing knowledge, speaking at events, and inspiring others.

Aditya Kaushik
NDTV, India
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.

Kevin Gao
Descope, USA
Kevin is an engineer who is passionate about solving problems and learning new skills. When he's not speaking to customers or coding through sprints, you'll find Kevin either on the road driving fast up a twisty mountain road, reading historical fiction books, or looking for a new place in the world to travel to and explore.

Logan Ralston
TikTok, USA
Logan Ralston is a Software Engineer for TikTok who works on TUX, TikTok's internal design system. Logan has always had a passion for technology and design. He also is an avid proponent of the hackathon scene and has previously served as the director of McHacks, one of Canada's largest hackathons.

Matt Butler
Evolution, Sweden
Matt Butler, Artist, and Art Director. Previously worked in London and the USA for Virgin, EA, Sega, and Activision creating games for the X box and Playstation. Matt moved into the iGaming industry 7 years ago, he currently works for Evolution with the Netent Brand. He has directed with the help of an amazing art team many of Netent´s most successful slot titles such as Divine Fortune, Narcos, and Jumanji.

Nonso Otoh
Konrad Group, Canada
Nonso is a developer, writer, and tinkerer that enjoys pushing the boundaries of web development. He has a passion for creating software that empowers others to bring their ideas to life.
Currently, he is a senior software developer at Konrad Group, where he actively builds solutions for various clients in the digital space. When he's not at his desk developing, you can find him rocking climbing, jumping out of airplanes, and seeing what new photography gear he can get his hands on!
Matt Seccafien & Simon Lenz
DeepL, Germany
Matt Seccafien
In the 20 years since studying in my homeland of Canada, I've held a variety of professional roles, starting out in traditional print, typography and information design, to site resiliency engineering, to open-source React framework development, and I'm currently interested in design system operations.
I value creativity and autonomy in both life and work, and thrive when I am invested in the whole idea rather than any single facet.
When not at my computer I can be found running around Tempelhofer Feld in Berlin, at the kino or hanging out with my partner Fiona and our cat Otto.
Simon Lenz
Hi, I’m Simon, a developer from Kaiserslautern, Germany. I work at DeepL on breaking down language barriers. Accessibility is a particular interest of mine, because we should bring everyone along in that process.
I like hiking in the beautiful Pfälzerwald and, these days, also enjoy playing the flute, editing the magazine of a historical board game society, and strolling across Tamriel as my Khajiit.

