JavaScript experts, mentors, speakers

Oli is currently a Frontend Engineer & Tech Lead at Cleo working across the mobile (React Native) & web (React) products. He sits within the savings squad whose mission is to help Cleo users build a safety net of savings.

John Robert is a Senior Data & Machine Learning Engineer at Sunnic Lighthouse (Enerparc AG), working at the intersection of data engineering, machine learning, and cloud platforms. He previously contributed to autonomous driving projects at Bosch and Mercedes-Benz, gaining hands-on experience with safety-critical AI systems. John is a frequent speaker at conferences such as PyCon, PyData, and Data Native, with a focus on AI safety, transparency, and trustworthy machine learning. Outside of work, he enjoys traveling and building projects like PetWorld+ and SpreadsheetProAI, etc

Develop professionally for 13 years. Worked as a team lead at Deloitte and Nielsen. Currently I lead my own tech company Tourmaline Core. I am passionate about people self-development culture at tech. I am a PhD.

Gil Friedman is Field CTO at Backslash Security, where he focuses on securing modern software development in the age of AI-driven coding. Prior to Backslash, he spent years leading engineering teams at Meta and SAP/Concur, building and scaling large, distributed systems and developer platforms used by millions. That hands-on experience shaped his perspective on AI-driven development—ensuring that innovation moves fast without compromising security, enterprise data, or developer environments.

GraphQL Technical Steering Committee, Principal Software Engineering Manager at PayPal.

Gal is the Director of Engineering at Epsagon. Gal has a background in cyber-security, with experience in reverse engineering, networks analysis, and was part of an army elite intelligence-unit before joining Epsagon.

Leandro Fernandez is an Engineering Manager at Meta, London, with 16 years of experience as an engineer/manager in big tech, like Meta, Uber and Dell Technologies. He has a successful track record of supporting high performing teams of software and machine learning engineers. Some of the cool projects that he launched in the past include Uber's Audio Recording and Record My Ride, and Meta's automated data removal infrastructure.

Product Manager at heart. Noa’s forte is creating products specially made for engineers and tech-savvy geeks. With her strong technical background as a former software engineer, her main passion is to simplify complicated technological pains into intuitive solutions and easy-to-use products that anyone can understand and use. She is currently the Lead Product Manager for the Wix CLI. She is a public speaking enthusiast and won't miss an opportunity to present her products in front of an audience.

James Swinton-Bland is DevRel Lead at AG Grid. He started out his career as a software engineer, before moving into Developer Advocacy. With a background in Android and Java, James now works primarily with React, helping developers get the most out of AG Grid and AG Charts.

Engineering Manager at Capital on Tap (UK fintech), leading Internal & Core Systems and the Engineering department’s AI adoption. Focused on moving AI from prototype to production with stage-gates, data-protection controls, and measurable impact. Integrating an AI function inside Engineering to ship customer-facing features.

Gokul is a software engineer and former startup cofounder with 10 years of experience building products across fintech, martech, consumer research, telecom, and logistics. He’s passionate about solving complex problems with simple, elegant solutions and mentoring aspiring engineers through programs at General Assembly and AcademyXI.

I’m a software developer working at Stack Builders with about 6 years of experience in full-stack development. I enjoy writing code, looking for new technologies, and finding solutions to problems. Music, sports, functional programming, and business are also a great part of my life.

I am a software engineer who is passionate about building high-quality systems, tools, and applications. I am continually striving for the feeling of having built something I’m proud of, something I know that I didn’t take shortcuts on, and something worth sharing. I also have a deep appreciation for modern design aesthetics and robust interaction design. The melding of form and function is my holy grail.

As a QA Engineer and Enthusiast, Olga loves to use modern and practical approaches to improve product quality. She believes that AI will never replace human work, but could help to improve the quality of testing and reduce efforts for a manual one.

Meaghan is a Designer at Cloudflare (previously Meta) focusing on the building the developer platform. Her expertise lies in creating developer experiences for cutting-edge technology including cloud computing, AI, machine perception and spatial computing. She is enthusiastic about bringing design into highly technical spaces and how design shapes development and vice versa.

Nataliya Ioffe is a front-end software developer with a passion for guiding organizations through digital transformation and modernization processes. Her recent work has seen her partner with organizations as they upgrade their tech stacks with React and adopt Headless architectures with powerful content editing capabilities.

Business-oriented software product engineer (M.Sc. in computer science) featuring 15 years of professional involvement in the entire life-cycle of digital products. Experience developing a variety of disruptive Internet technologies. Insights into modern travel, smart cities, the gig economy and social networking services.

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.

Daniel Goren is a lead researcher at Evinced, a pioneering company specializing in automating the detection of accessibility violations. With 6 years of experience and a deep passion for accessibility, Daniel is committed to driving innovation and best practices in the industry.

Shubham Gautam is a Senior Software Engineer at Headout, where he builds large-scale, performance-sensitive frontend systems powering global travel experiences. His work spans AI-assisted media pipelines, browser-based multi-track audio engines, and TypeScript-first architectures designed for reliability and scale. He has led initiatives across frontend infrastructure, design systems, real-time synchronization layers, and conversion-focused product engineering, balancing architectural rigor with measurable business impact. Shubham enjoys exploring the intersection of deterministic systems, browser performance, and modern React tooling.

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.

I’m Harsh Maheshwari, a Principal Engineer at Optum, UnitedHealth Group. I hold a Master’s in Computer Science and specialize in applied search technology, focusing on Full Stack AI/ML application. I’ve filed patents in this area and have previously created similar solutions for the fintech industry. My work revolves around advancing search methodologies and pioneering innovative frontend development.

Tim Makin is a Software Engineering Manager at CDL with over 20 years of experience in driving innovation and delivering high-impact digital products. They currently lead 14 teams, guiding projects from conception to completion while fostering a culture of excellence. Before their current role, Tim spent six of those years as the founder of a digital agency, developing solutions for world-renowned organisations including the BBC, Tesco, IKEA, and Sage.

Software developer with more than 20 years of professional experience. Team member of Vite and Svelte.