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!

Todd Fisher
Verdi AI, USA
Todd has a passion for promoting a healthy product and engineering culture, collaboratively exploring ways to solve both organizational and engineering needs, as well as holding regular discussions around how to evolve the software engineering craft. Todd believes in a human centered approach to engineering, where the experience of those creating and evolving the product is just as important as those that use the product.
A native to California's bay area, Todd’s journey into programming started over two decades ago and he has been privileged to work with many technologies as well as leadership roles over the years. With his experience as a Principal of Software Engineering Practices, in the Technology Center of Excellence at Pluralsight, Todd supported both individual software engineers and the technical leadership team in helping to continually improve and work together in a way that enables everyone to do their best work.
Todd loves to play the guitar, and is always open to jamming out and frequently enjoys paired programming with strangers.

Alex Shershebnev
Zencoder, Portugal
Alex Shershebnev is a seasoned Computer Vision and MLOps Engineer with over nine years of experience shaping the future of AI-driven software development. Currently, Alex leads the ML/DevOps team at Zencoder, where he leverages his extensive background in Software Engineering, ML and DevOps to deliver high-quality machine learning solutions. His work spans complex data pipelines, cloud infrastructure management (GCP, Kubernetes), and advanced ML/DevOps pipelines, ensuring scalability and efficiency.

Simon Stern
Apricot Studios, Canada
Simon is a full-stack developer and React Native specialist with a keen interest in experimenting with bleeding edge software, building cool products, and sharing knowledge. Over the years he’s had a diverse set of experiences ranging from mobile apps, full-stack development, web3, AI & LLM’s. His clients have won awards in the healthcare space, been featured at the Cannes Film Festival, and were a partner in the Dubai 2020 Expo. Recently Simon has been exploring the frontier of the future as a member of the Network School in Forest City, Malaysia.

Heena Gupta
Expedia Group, India
Heena is an open-source enthusiast since her college days. She completed her Bachelor of Technology from Delhi Technological University, 2011-2015 in computer engineering. She contributed to KDE organization during Google Summer of Code. Later, she mentored open-source contributors as a Google Code In, 2013 mentor and made the KDE community even more stronger by her diligent demonstration of mentorship skills. She was also one of the co-administrator and mentor for Search of KDE, 2014 and Google Code In, 2014. She has represented KDE organization in various Google Summer of Code knowledge sharing sessions held in DTU. She also presented KDE plasma projects in FOSSASIA 2015, Singapore. She also organized a Google Summer of Code meetup in Delhi which was featured in Google open-source blog. Apart from her open-source contributions, she has over 8 years of work experience as a software developer. She is currently working at Expedia as a Software Development Engineer III for Flights. She is one of the service owner for flights progressive web application. She has done several pipeline improvements for an efficient release process and is responsible for ensuring timely releases using the release pipeline for the same. She is a part of flights performance project where she shares a crucial role in making the flights progressive web application performance efficient. She has presented on “Portfolio Management through storytelling using narrative visualizations with advanced filtering” in Hong Kong Open Source Conference, 2017. She also presented a poster on “Optimal financial planning through storytelling using narrative visualizations with advanced filtering“ in Grace Hopper Conference India, 2017. She was also a mentor in “Learn IT, Girl” 2015 in which she mentored female developers.

Amy Blankenship
Senior Full Stack Developer, USA
My degree is in Graphic Design, but when I started coding by accident, I fell in love with the beauty of good code. I've never looked back. I've worked for tiny sole proprietorships and giant multinationals, startups and mature companies. I've found something interesting and worth doing at all of them.

Jiri Lojda
Kontent.ai, Czech Republic
Jiri is an Integrations Engineer at Kontent.ai. He loves to write type-safe, functional code using TypeScript and React as his primary tools. Always eager to learn and keep up with new technologies to enhance his skills and work, he wants to promote the advantages of this approach to project development in the community.

Vitali Shchur
Check Point Software, Georgia
I am an experienced Quality Assurance (QA) engineer with over 10 years of experience in testing web applications, mobile apps, and desktop platforms (Windows, macOS, iOS, Android, Linux). I contributed to the growth of a startup from 25 to 250 employees, leading to its sale for $0.5 billion. I have worked at companies like Check Point Software and Perimeter 81, focusing on testing, creating test cases, analyzing specifications, and cross-platform testing. My extensive background spans product and outsourcing companies in cybersecurity, fintech, and education. I am also eager to share advice on career development in QA.

Sarah Rainsberger
Astro, Canada
Sarah Rainsberger leads a large open-source software documentation project with several maintainers and over 1000 community contributors. She brings a background in high school mathematics education, academic counseling, and curriculum development to her current technical writing and open source community building. She lives in Atlantic Canada with her husband J. B. (Joe). In her spare time, she photographs birds.

Mattia Lobertini
Datadog, Italy
I’ve spent over 15 years in tech, building products and leading engineering teams that scale. From writing code to shaping strategy, I love solving complex problems and turning ideas into real-world solutions. I believe great products are built by empowered teams, and
I’m passionate about creating spaces where engineers can collaborate, innovate, and make an impact.

Manasa Hari
Adobe Inc., USA
Manasa is a seasoned software engineer with 12 years of experience, specializing in event-driven architectures, data engineering, and scalable systems. She has worked for top companies like Splunk, Selector AI, Celcom, Taulia, and RingCentral, and recently spoke at Grace Hopper Celebration 2024, receiving a standing ovation. Passionate about empowering women in tech, she mentors aspiring engineers and shares her journey from intern to lead engineer. Manasa balances career growth with family, continuously striving to lead with emotional intelligence and technical excellence.

Gil Eckstein
Wix, Israel
Gil is a Performance Architect at Wix Viewer. For the past eight years, he has been helping build the application that powers Wix websites. As part of the Viewer team, Gil works on making it easy for anyone to create their dream website and for developers to extend the functionality of their Wix websites.
With over 10 years of experience in software development, Gil started his career in networking and Linux but always had a passion for web development. For the past four years, he’s been leading the Viewer performance team, working on Wix websites performance and ensuring they load as fast as possible.
In his free time, Gil likes working out at the park, playing basketball, and working on his personal projects—many of them built with AI ;)

Lena Reinhard
Executive & Leadership Coach, Germany
Lena Reinhard (Website, LinkedIn) is an engineering leadership coach, mentor, and organizational developer supporting technology leaders in growing themselves and succeeding in the complexity of engineering organizations. Previously, Lena served as VP Engineering with CircleCI and Travis CI, and a SaaS startup co-founder & CEO, and has dedicated her career to helping leaders and their organizations excel in times of high change and challenging markets. She has worked with a broad variety of companies at all stages, from startups pre-founding and bootstrapped, scale-ups, to late-stage/pre-IPO and VC-funded ventures, to corporations and NGOs. Find her writing on leadership and more about her work at lenareinhard.com.

Konrad Bujak
CEE AI Hub, Poland
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

Jen Person
Squid Cloud, USA
Jen Person is a developer advocate for Squid Cloud, an enterprise-grade backend-as-a-service that connects to and secures any API or data source. With nearly a decade of experience in developer products, Jen has extensive experience connecting with developers through talks, blogs, events, social media, and videos. She is passionate about creating the best development experiences so devs can focus on creating the best applications.

Miranda Babbitt
Zapier, Canada
Miranda Babbitt is the Partner Marketing Manager at Zapier, where she orchestrates the lifecycle for over 7,000 integration partners and spearheads co-marketing efforts with high-value partners like Meta, LinkedIn, and Google. As a die-hard fan of all things AI, automation, and communication, Miranda has driven initiatives that have significantly boosted partner engagement, ARR, and team collaboration. Before joining Zapier, she honed her skills at Thinkific, where she led platform marketing strategies and championed a first-of-its-kind virtual partner summit. Fun fact: Miranda also runs a design blog, Hyppïa Homes, all about exploring how design and one's sense of self intersect.







