JavaScript experts, mentors, speakers

Senior software engineer at Rollbar with over 10 years of experience building web applications.

Julia is a Software Developer at ec0lint, a tool for frontend developers which mitigates the carbon footprint of websites. Besides, she works as a Software Engineer at Akamai. She is also a laureate of the IT for SHE program. In her free time, Julia practices yoga and makes handcrafted candles.

Karen Li is a concert pianist turned elementary school teacher turned software engineer. She is currently a software engineer at GitHub, building and maintaining scaled products. Aside from engineering work, Karen blends education and technology by sharing her experience with the community. Her motto, "I invest in brains" captures her journey from teaching to tech empowerment.

Self taught frontend developer from India who loves to tinker around with modern web technologies, College student & currently working at timeless.co

Jeff Hoffer is the Technical Leader for Growth at Rollbar, working to improve Rollbar's current products and assist in developing new products that engage customers by bringing Continuous Code Improvement tools to where they are. With over 20 years of experience developing software for startups and enterprises, scaling to Internet traffic, building and maintaining commercially licensed products, and developing internal enterprise tools, Jeff has worked as a Software Engineer, Software Architect and in Director and VP roles leading technology organizations at Intuit, The Bouqs Company, Lunchbox (acquired), Accordent (acquired by Polycom) and Countrywide along with consulting work at many other prominent firms. Jeff has a passion for software development which is why he loves working at Rollbar so much with the focus on improving the professional lives of developers and the strong engineering culture.

Sam Stepanyan is an OWASP London Chapter Leader and an Independent Application Security Consultant with over 20 years of experience in the IT industry with a background in software engineering and web application development. Sam has worked for various financial services institutions in the City of London specialising in Application Security consulting, Secure Software Development Lifecycle (SDLC), developer training, source code reviews and vulnerability management. He is also a Subject Matter Expert in Web Application Firewalls (WAF). Sam holds a Master’s degree in Software Engineering and a CISSP certification.

Will divides his time between web development and teaching, and has ever since 2005, when he started his web development career removing duplicate data from his friend's map-based property search app. Since then he has coded and taught in diverse contexts, from national newspapers to the shores of the Atlantic ocean. A qualified school-teacher, he is nevertheless passionate about alternative forms of education. He has spent the last two years researching and building his home-ed support platform, Aldeia (using React, obviously).

Miroslav Malecha is Director of Product management at Bonitoo.io. He has a background in computer science and has been focused on defining software products in data science, enterprise architectures and cloud computing. Prior to joining Bonitoo, Miroslav held product management positions at Good Data and Hewlett-Packard Software. When Mirek is not working, you can find him speeding down hills on his ebike in the forests near Prague.

Software engineer that have been doing react for years (I was material ui contribute for a while) and now passionate about Rust, OCaml and pure C. Love performant, robust and pretty applications and trying do deliver them on a regular basis :)

Kristina J. Robinson is a Software Engineering Manager at InfluxData. With over 20 years of software development experience, she is thrilled to be a part of the InfluxData UI team. Most recently, Kristina spent time in the financial tech sector working as front-end developer. Kristina graduated from Rice University with a degree in Computational and Applied Mathematics. She currently lives in San Antonio, TX, with her husband and teenage son, and has another son in college. She also has two cats, and fosters dogs and cats frequently. She plays video games with both her boys. She reads voraciously, enjoys paper crafts and knitting, and plays several musical instruments.

Jennifer is a front end developer on the Docs and API Libraries team at Shopify where our goal is to make it easier for developers to build on Shopify’s platform by creating and curating technical resources. Jennifer has spent the last two years working on shopify.dev, Shopify’s home for developer documentation.

Jupiter is a prolific indie game journalist. She covers thousands of game jams and indiegames on her YouTube channel, letting every game have a moment in the spotlight. Jupiter is also the Adept Games Wizard at Armor Games where she finds free-to-play, browser-based games to bring on board to their web portal and has been working from home for all of her adult life.

Carmen Huidobro is a developer advocate and dev education enthusiast. She thrives on lifting others up in their tech careers and loves a good CSS challenge. Always excited to talk about teaching tech, especialmente en Español, oder auf Deutsch.

Stephanie is a Senior Frontend Engineer at Beamery, and a seasoned full-stack engineer with considerable experience in the financial and public sectors. She's a passionate advocate for tech-for-good, diversity, and developer education. As a speaker, she's known for her entertaining talks and irreverent sense of humour. She is currently developing Beamery's AI-powered talent lifecycle management platform.

An avid technologist, Richard has worked on a variety of projects with a diverse range of people, crossing technologies, languages, and continents. With a particular focus on the front end space, he is currently working across teams to help build and develop the tech function at Sainsbury’s. Passionate about teaching and sharing, he’s also a co-organizer of JavaScript London and was previously a senior coach at React GraphQL Academy helping professional devs take their skills to the next level.

Senior Software Engineer and consultant in Tektit Consulting. IT trainer at Infoshare Academy. Previously worked on Jira Cloud and Atlassian Forge. He talks and records stuff on Front-end and WebDevelopment related stuff.

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.

Founder at uncloud on a mission to simplify baremetal for software teams. Software dev at heart with a passion for distributed systems and making things run at scale ⬥ YouTuber ⬥ Dad of Ida 👶🏻 Caretaker of Frodo 🐶

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.

André is a seasoned developer with over 20 years of experience and is currently a Principal Engineer at bettermarks, a Berlin-based EdTech company. When AFK, he loves biking, watersports and woodworking.

Dara is a Software Engineer currently working at Spotify where she develops tools and services that provide internal teams with access to user account data. She began her career as a Frontend Engineer in the finance sector, and recently transitioned into full-stack development. With over 6 years of hands-on experience, Dara is particularly passionate about merging her creative and technical skills to design and build user-centric products that foster community. Outside of work, she loves to mentor other women who are at an early stage in their tech careers.

Frontend Engineer at Evil Martians, a product development consultancy. My great inspiration is to shape thoughts into easy-to-use products and articles, and I love to speak publicly. I'm passionate about learning different front-end technologies, and always try to see both pros and cons of using them.

Haris is a Software Engineer at Grafana Labs, where he makes contributions to open-source Grafana. Currently, he’s on the Explore squad, focused on improving data troubleshooting and discovery experience.

Sergey is a software engineer at FocusReactive. Loves to understand how things work and is passionate about website performance.