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!

Graham McNicoll
GrowthBook, USA
Graham is the Co-founder and CEO of GrowthBook, the most popular open-source feature flagging and A/B testing platform. GrowthBook is backed by Y Combinator and Khosla Ventures. Before starting GrowthBook, Graham was the CTO of Education.com for 6 years. Graham is a three-time startup founder, including starting an international non-profit to increase access to communication in the developing world, particularly sub-Saharan Africa. He has a degree in Physics from CMU.

Joel Chippindale
Monkey’s Thumb, UK
Joel is a CTO Coach who supports start-up and scale-up CTOs to successfully and confidently navigate the changes in their roles as their businesses evolve. He has over 20 years experience building, scaling and leading software development teams, mainly in start-ups, where he held both CTO and COO roles.

Sofia Larsson
IKEA, Sweden
Sofia leads end-to-end product teams building services and customer experiences in a distributed architecture. She cares deeply about creating environments where engineers can do their best work. Outside of work, she co-hosts Developers!, one of Sweden’s most popular software podcasts.

Bogdana-Elena Avadanei
Zoopla, UK
Bogdana is an Engineering Manager at Zoopla, where she leads teams in building scalable, high-impact technology solutions. Over the past nine years, she has grown from an eager engineering intern into a thoughtful leader passionate about people, process, and continuous improvement.
Her career spans both fast-paced startups and large organizations, giving her a broad perspective on how teams thrive in different environments. Beyond her day-to-day work, Bogdana is dedicated to supporting the next generation of technologists. She has taught at coding bootcamps and apprenticeships, guided students in launching their careers, and was an instructor for Code First Girls.
Driven by curiosity and a focus on growth, Bogdana helps engineers find opportunities for learning and innovation in the fast-moving world of tech.

Keren Fanan
MyOp, Israel
Keren Fanan is the co-founder and CEO of Myop, a developer-first platform transforming how UI and UX are built, controlled and optimized in production.
Keren has held key leadership positions at Moon Active and Gett and has a proven track record of success in scaling startups, launching strategic partnerships and driving profitability.
At Gett, a global B2B transportation leader and unicorn, Keren served as Chief Revenue Officer and GM Enterprise. She was instrumental in scaling the company from its early stages to over $200 million in revenue, leading international SaaS strategy and overseeing marketing, sales, and business development.
Following Gett, Keren joined Moon Active, a $5B gaming company, as VP of Product & Monetization. There, she led cross-functional teams, shaped product direction, and grew average daily revenue from $10K to $200K, contributing to over $1.5B in total revenue.
Keren is a passionate advocate for women’s inclusion in tech and serves as a board member at Women in Tech (WIT). She also actively mentors and supports the next generation of female tech leaders.

Benjamin Swerdlow
Freestyle, USA
Benjamin Swerdlow took a break from his studies at UChicago, to go work as a Senior Backend Engineer for Apple, who recently took a break from Apple to build Freestyle. He's been building in the Open Source community since high school, and was a technical lead for the World Health Organization's COVID-19 App team.

Kevin Lamping
USA
Kevin Lamping is a Front-end Engineer and Tester. He runs a course on automated testing at http://learn.webdriver.io and has a YouTube Tutorial Channel (Front-end Testing with Kevin Lamping). In his free-time, when he's not playing with his kids, Kevin dabbles in tabletop gaming, disc golf and gardening.

Oz Syed
Sauce Labs, Canada
Oz is a Game Dev Evangelist at Backtrace, A Sauce Labs Company. He has over 15 years of experience in the game industry in various senior technical roles in gaming and software engineering. His major interests are emerging tech, machine learning and creating new tech products involving gaming or gamified applications.

Steven Lee
Atos, UK
Steven has 13+ years of industry experiance as an engineer, tech lead, interim CTO, technical co-founder and technical consulting. Starting out as a software engineer and moving quickly to tech lead and consulting to building digital venture teams across London. Most two roles have been Head of Technology and Head of AI/Developemnt for two multinational companies.
Day to day activies focused around research, development and integration of new tools and workflows for engineering teams, hiring and training the next generation of developers and building modern sustainable software.

Francisco Gomes
UK
Francisco Gomes is a Tech Lead, building large-scale microservices systems. His work spans engineering standards, developer enablement, security, compliance, and architecture across modern stacks including cloud, frontend, backend, and AI. Beyond industry, he has taught aspiring engineers from over 20 countries, mentoring the next generation of software developers.

Mikael Landau
Semble, UK
I co-founded Semble after witnessing the challenges of a fragmented healthcare system first-hand. Driven by a desire to create meaningful change, I joined forces with my fellow tech entrepreneur and friend, Christoph Lippuner, who had also seen the impact of disconnected care.
Leveraging our experience as tech entrepreneurs who had successfully exited their first start-up, we collaborated closely with doctors and healthcare staff to design an interoperable, all-in-one clinical system that truly meets their needs and enables them to amplify their impact. Today, Semble supports thousands of healthcare professionals across more than 77 specialities, helping to improve care for over 8 million patients.












