Test JavaScript. Test with JavaScript.

Stefan works in Checkly's Developer Relations and quickly fell in love with web performance, new technologies, and accessibility. He is also a curator of the online resource Tiny Helpers, Tiny Teachers, contributes to a variety of open source projects, and enjoys sharing nerdy discoveries.

Marie is currently a Developer Advocate at k6.io, a Grafana Labs company. In the past, she has been an Engineering Manager, a Principal Engineer and a Test Consultant. She is also a tech blogger at testingwithmarie.com, an accessibility advocate and an online course instructor at Ministry of Testing and Test Automation University.

David Burns, heads the Open Source office at BrowserStack. He is also a core contributor to the Selenium project and Chair for the W3C Browser Testing and Tools Working Group.

Shai Reznik or "That guy who always talks about testing..." is the founder of HiRez.io which focuses on cost effective testing training.

Being a leading part of the JavaScript community since 2012 and a Google Developer Expert, Shai has been speaking all over the world giving wild and entertaining talks.

His courses and training have helped thousands of developers enjoy a stress free life and while increasing their code confidence, quality and efficiency.

And his lectures have been viewed by over 170,000 developers (and probably a few random people as well!)

As a hobby, Shai does improv and standup comedy and love to tease friends with weird sweaters.

Oleg Šelajev is a developer advocate at AtomicJar working on making integration tests with Testcontainers better for everyone in the community. VirtualJUG leader. In 2017 became a Java Champion.

Shivay Lamba is a software developer specializing in DevOps, Machine Learning and Full Stack Development.

He is an Open Source Enthusiast and has been part of various programs like Google Code In and Google Summer of Code as a Mentor and has also been a MLH Fellow. He is actively involved in community work as well. He is a TensorflowJS SIG member, Mentor in OpenMined and CNCF Service Mesh Community, SODA Foundation and has given talks at various conferences like Github Satellite, Voice Global, Fossasia Tech Summit, TensorflowJS Show & Tell.

SC Cleared Full Stack SDET with +15 years of Experience in QA, +13 years of Experience in Test Automation, and +8 years in Leadership, Delivering, and Releasing Software on different platforms (Mobile, Desktop, Web). Raised and born in Brazil with Portuguese grandparents moved to London in 2014 and now works as an independent contractor.

Became a STEM Ambassador and a STEM Women Member in 2020 making an impact and bringing more people to the STEM area. Contributes to TestProject and instructor of Test Automation University (Contract Tests with Pact and Introduction to Blockchain Testing) alongside a tech blog created in 2011 which is a collection of learnings and past experiences.

I am Tsahi Levent-Levi. The person behind BlogGeek.me and Chief Product Officer at Spearline. My blog focuses on rumblings about technology usually boiling down to WebRTC, CPaaS, Messaging, Disruption and other topics (Science Fiction anyone?) To put food on the table, I also consult in these domains, publish my own reports and run a WebRTC training.

During the past decade (and then some) I have taken part in the development of various telecommunication projects - mainly those related to VoIP and 3G. I've done so as a programmer, manager, marketer and CTO. This included developing the 3G-324M protocol stack from scratch, as well as managing the team that was in charge of developing and maintaining the H.323 protocol stack, along with other interesting projects.

I was the cofounder and CEO of testRTC, a self service SaaS company focused on testing, monitoring and support for WebRTC applications. In 2021, we sold the company to Spearline.

These days I am working as a consultant, analyst and entrepreneur on anything related to VoIP, but it mainly focuses on CPaaS, WebRTC and their potential for disruption.

I have an MSc in Computer Science and an MBA degree with a focus in Entrepreneurship and Strategy. Included in my resume are a few patents and being the chairman of different activity groups in the IMTC – an organization focused on interoperability of multimedia standards.

You can use the social media links to reach me or learn more about what I do and where.

Colin Ihrig is an engineer at Deno Land, a member of the Node.js Technical Steering Committee, a libuv collaborator, and a hapi.js core team member.

I'm a physicist, a ballerina and a programmer! I started my work journey doing some investigation work on particle physics implementing algoriths, after I choose that turning to software developing could be a good fit for me. I moved to fullstack develop and when unit testing appeared in my eyes I knew that programing with testing was the perfect fit for me. Now I dedicate my day in working in automation testing, QA work, studying a lot about how to imrprove my work, and dance.

Creator of Mock Service Worker. Teaching people that testing can be useful and fun.

Lead SDET at Slido, official Cypress.io ambassador. I studied psychology, and landed in tech, where I now combine the knowledge from both. Huge passion for music and running. Author of Cypress workshop. Always learning, blogging, streaming, creating videos and online courses. All can be found on filiphric.com. Father of three beautiful children.

Matt Fellows is a core contributor to the Pact contract-testing framework, and the Principal Product Manager of the microservices continuous delivery platform – Pactflow (a SmartBear company). A self-described polyglot who enjoys working at the intersection of technology, humans and ideas – ideally fully caffeinated. He's passionate about giving back to the tech community, sharing learnings at local meetups and conferences, and is a core contributor to the popular Pact microservices testing framework and author of the Muxy chaos testing tool. When not absorbing the Internet via osmosis, he can be found teaching kids at Code Club, playing basketball or pumping iron like Arnie.

Daniel Irvine is a soft ware consultant based in London. He works with a variety of languages including JavaScript and Ruby. He’s a mentor and coach for junior developers and runs TDD and XP workshops and courses. When he’s not working, he spends time cooking and practicing yoga. He co-founded the Queer Code London meetup and is an active member of the European software craft community.

Kat works as Quality Engineer at Zoopla. Tried lots of paths: fine arts, comparative literature, social psychology and cognitive science studies before discovering the most enjoyable so far tech path. Kat solves modern browser testing challenges at work and jigsaw after work.

Dr. Florian Rappl is a solution architect from Germany who is specialized in the creation of scalable distributed web applications. These days he is almost exclusively working on micro frontend solutions. He wrote a book on the topic and regularly gives workshops at conferences and directly for companies. Florian is a long time Microsoft MVP in the development tools area.

Scott Gerlach is Co-founder and Chief Security Officer at StackHawk, a Denver-based startup focused on empowering engineers to easily identify and remediate security bugs. Scott brings over two decades of security and engineering experience to his current role, having served as CSO, CISO, and in other executive leadership functions at companies like SendGrid, Twilio, and GoDaddy. When he's not at work, you'll find Scott spending time with family, brewing beer, and playing guitar.

Murat was born in Turkey and has lived around Chicago for over 20 years. He graduated from Illinois Institute of Technology with a computer engineering bachelor's and contributed at Siemens for over a decade. He is married with two daughters; 9 and 11 years old. He lives to do corrective deeds; learn, teach, fix what is broken, improve and optimize all things around at work, open source, and home life. He is a tech enthusiast in love with testing, development, devops, web and cloud. Currently he is a Staff Engineer & Test Architect at Extend.

Filip graduated from Faculty of Electrical Engineering and Computing, University of Zagreb in 2017 and has started his careers at Infinum as JavaScript Engineer. Over the years, FIlip gathered knowledge of various Frontend topics, with focus on Angular, and became Angular Lead Engineer. Some more time passed and Filip started focusing more on soft-skills and became JavaScript Team Lead at Infinum, while still continuing to do Angular development and being involved in architecture-level decision-making.

As for FIlip's personal interests and hobbies, he likes PC/Nintendo Switch Gaming, messing around with HiFi gear and mehcnical keyboards, and being a loving husband & father to his wife & child.

Evyatar, Front End Engineer at Facebook. In my free time I maintain multiple open source libraries and packages, and volunteer as a mentor in a local tech community, introducing developers of all levels to their first open source contributions. My passion is dev ergonomics and building tools and libraries for other developers to use.