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!

Hadar Geva
Myop.dev, Thailand
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.

Shivakant Shukla
Mphasis, India
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.

Andrew Murphy
Tech Leaders Launchpad, Melbourne, Australia
Andrew Murphy started his career as a Software Engineer but, after a decade in technology leadership, he decided to focus on teaching the skills that he learnt the hard way. When he moved into leadership there was no support, so he had to make all the mistakes (a lot of them!) and learn from them.
His goal is now to make sure that tech leaders don’t have to do things the hard way by providing them with the mindsets and skillsets that can make them happy, confident and effective leaders.
His company, Tech Leaders Launchpad, currently focuses specifically on the new and emerging leader space, as that's the place we can have the biggest impact on the students, and the industry.

Karen Huaulme
MongoDB, USA
As a Principal Developer Advocate at MongoDB, Karen Huaulmé (pronounced “You-Old-Maid” - but with no d’s) develops and presents applications to help developers unleash their creativity across all aspects of data and technology. Leveraging her past experience as a Solutions Architect for some of MongoDB’s most demanding customers, Karen loves to trigger that “aha” moment in the minds of developers - when they recognize a better path to simplify, enhance, and accelerate their projects in ways they never thought possible.
Prior to MongoDB, Karen spent most of her career working with video game developers as a Solutions Architect and Integration Engineer at Nvidia, Amazon and Twitch. In her free time, Karen embarrasses her 2 kids, spoils her dog, and feeds her addiction to adventure travel - not necessarily in that order.

Senna Parsa
GitHub, Netherlands
Senna is a Solutions Engineer at GitHub supporting our customers the EMEA MidMarket segment. She has a background in web application, iOS development, and accessibility. Originally working out of the HQ in San Francisco, she’s been working with GitHub customers for three years, passionate about empowering developers and helping organizations as they go through cultural and digital transformations.

Jorrik Klijnsma
Ordina, Netherlands
Jorrik’s first lines of code were in the days jQuery ruled. That didn’t scare him. Now he has 6+ years of frontend experience using React and Vue during his day job. In the evening and night hours, a lot of fun projects and other libraries passed his ‘git clone’. When not coding he gets his fair share of laughs going to comedy shows.

Mathilde Buenerd
Shopify, Spain
I am a Frontend Developer at Shopify and a certified Web Accessibility Specialist. My expertise lies in creating complex user interfaces that are both user-friendly and compliant. At Shopify, I develop No Code tools, enabling all users to effortlessly customize their Online Store.

Steve King
JP Morgan, UK
Engineering Manager in UI Engineering at JP Morgan, Steve works with the core engineering teams creating open source developer tooling and an accessible React component library aimed at streamlining the life of development teams across the bank. Steve has working in JavaScript development focused roles since 2001 from ad agencies to fintech and IE6 through to evergreen Chrome, he is the author of several widely used open source libraries and describes his career as having been lucky enough to follow his hobby and his passion every day for over two decades.

Melanie de Leeuw
Capgemini, Netherlands
Melanie loves being a software engineer. The infinite loop of bugs, puzzles and learning make of everyday a
new adventure. Her specialty and the love of her life is Vue.js, but lately she has been adding Nuxt.js and
Node.js to the party. When she is not working as a software engineer at Capgemini, she uses her web
development skills to remove micro plastic in the waters of the world. Her goal in this life is to work towards a more sustainable way of life, meaning that her hobbies include sailing the world, documenting underwater
micro-life, and picking up trash with podcasts blasting.
She is always trying on many different hats: trainer, team lead, community builder, talker, organizer. But the
hat that fits best is developer.

Adam Niederer
Chatham Financial, USA
Adam leads frontend development at Chatham Financial, where his efforts to centralize front-end resources and training have led to transformative improvements in product consistency and quality, accessibility of user experiences, and developer efficiency. In addition to the frontend, Adam especially enjoys working on projects involving performance, accessibility, and coding theory. Outside work, he spends his time learning human languages, writing open-source projects, and haunting his favorite sushi joint.

Udipta Basumatari
Thravos.io, UK
With 16 years of product and business leadership in marketing technology at top companies like Salesforce, Adobe, WPP, and Rakuten, Udipta has led 8-figure revenue units and launched NK BigStar, Northeast India's largest streaming platform, reaching 500K monthly active users. Currently in C-level roles at innovative crypto startups, he played a key role in Bowled.io's Token Generation Event, driving over $10 million in daily trading volume for the BWLD token across multiple exchanges.

Denis Artyuhovich
DAZN, UK
Principal Engineer and active open source contributor.
From Minsk, but now based in London and work at DAZN.
I like playing around with TS, React, Redux, MobX/MST, RxJS, WebGL, Serverless, Node, Functional Programming with a focus on performance, system architecture and team productivity.

Jenny Lea
Figma, UK
I am a Software Engineer at Figma, hailing from Leeds in the UK. I have always worked full stack but there is a special place in my heart for anything visual, which has lead me to my role on the Developer Tools team at Figma. What excites me about technology is being able to rapidly iterate on things and work with the smartest people around to build cool stuff! In my spare time I enjoy hanging out with my cat, oil painting and getting out into the countryside on my own two feet.

Shyam Swaroop
Atri Labs, USA
Shyam Swaroop is the maintainer and core developer of an open-source project, Atri engine - a new framework built on React. He is also the Co-Founder & CTO of Atri Labs - the company behind this project. He has worked as a software engineer in both academia and industry. His most recent engagement in academia was working with DARPA under the US Department of Defense as Graduate Research Assistant at Columbia University (USA). Previously, he has created software products that have yielded multi million dollars of revenue for his organization, EXL Services, a US-headquartered technology consulting firm. He studied Engineering from IIT, India and dropped out from graduate program in computer science at Columbia University, USA to work on his startup full-time.

Alexander Weekes
Toptal, UK
Alex's skills as a project manager helped integrate athlete management tech into many UK universities such as Birmingham City University. He joined Toptal to add his expertise in agile methodologies and best practice leadership techniques to help complete innovative projects and add value to end users' products. As a PMI member, he is proficient at operating within a varied company structure from SMEs to enterprise organizations.

Oliver Moradov
NeuraLegion, UK
Oli is VP of NeuraLegion's developer focussed security testing platform, helping developers understand how they can run seamless, fast and accurate security tests on every build.
Oli works closely with security and engineering teams globally to help them ship secure software more efficiently and is passionate about automation, CI/CD and DevOps / DevSecOps.
Oli has spoken at many conferences internationally and is a regular at developer and security related events and meetups.

Andy O'Neil
Weblytica, United States
My name is Andy O'Neil, and I help entrepreneurs add time-saving automation to their businesses through a process called co-building. This is a 1-on-1 process where I assist business owners in building automations over Zoom calls. Each session is personalized to meet the specific needs of the business owner and their business automation requirements.
I have been creating no-code processes and automations since 2006, even before the term "no-code" was widely used. I have a passion for teaching entrepreneurs how to automate their businesses using Make.com, which is why I focus on co-building. My goal is to empower people to understand and control the automation processes in their businesses.
I have been married for 21 years and have four beautiful children who keep my wife and me very busy.

Sierrah Coleman
Technical Product Manager, USA
Sierrah Coleman is a seasoned Technical Product Manager with a proven track record of driving product success in high-growth tech environments. At Indeed, she spearheaded initiatives that led to a 20% increase in positive relevance rating feedback and improved job match relevance by 9% through refined ML-based recommender systems. Her leadership in developing and launching an AI-powered query-relevance scoring feature boosted organic apply starts by 20% and sponsored apply starts by 15%.
During her tenure at Cisco, Sierrah Coleman increased customer retention by 12% through effective communication strategies and competitive analyses, leading to a 5% increase in annual revenue. She successfully launched an auditing feature, securing substantial upsell opportunities and contract renewals.

Ilia Chernetskii
Evolution, Tallinn, Estonia
Ilia has been working as a Web Developer since 2008 and has rich experience in creating complex web applications and writing reliable client and server-side application logic in JavaScript. He worked both in a large corporation and in a small company, where he realized how to make decisions, take responsibility and manage a team. Created his own startup, which he successfully sold. Passionate about computer science, mathematics and finding answers to challenging questions. He always has high demands for the quality of his own code and does not compromise in terms of the logic and speed of the code. He loves minimalism in code, design, and life.




