Speaker

Eugene Fidelin

Eugene Fidelin

Engineering Manager & Frontend SME @ eBay

Amsterdam, The Netherlands

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Engineering Manager & Frontend SME @ eBay, ex Frotend Architect @ Marktplaats. Experienced Full-stack Web Developer with 20+ years in the field. Enjoy helping teams to build well-tested, high-performing, and secure software using Javascript, Node.js and React.

Area of Expertise

  • Business & Management
  • Information & Communications Technology

Topics

  • NodeJS
  • JavaScript
  • React
  • MarkoJS
  • Testing and Quality
  • Web Performance
  • Web Application Security
  • TypeScript

Marko.js: Unsung Hero of Scalable Web Frameworks

Marko.js is a JavaScript framework created by eBay back in 2014. It offers super-efficient server-side rendering, making it ideal for big e-commerce sites and other multi-page apps where speed and SEO really matter. After over 10 years of development, Marko has some standout features that make it an interesting choice. In this talk, I’ll dive into these unique features and showcase some of Marko's innovative solutions. You might not use Marko.js at your company, but there’s still a lot you can learn from it to bring to your next project.

Testing: Do More With Less

How can you be confident that your code is well-tested? For me, the criteria are straightforward: you feel comfortable deploying it automatically to production on a Friday evening, and the release pipeline stays as green as an evergreen tree. In this talk, I'll share some approaches that I am following to hit both targets for Node.js apps (APIs, BFFs, etc)

JS Poland 2025

Marko.js: Unsung Hero of Scalable Web Frameworks

November 2025 Warsaw, Poland

TechEx: AI & Big Data Expo 2025

Panel Discussion: GenAI for Software Development - Beyond the Hype, Into the Code
What’s real vs. hype: Where GenAI is already delivering value in dev workflows, and where it still falls short.

September 2025 Amsterdam, The Netherlands

WeAreDevelopers World Congress 2025 Sessionize Event

July 2025 Berlin, Germany

DevDays Europe 2025

Marko.js: Unsung Hero of Scalable Web Frameworks

May 2025 Vilnius, Lithuania

Frontmania 2024 Sessionize Event

October 2024 Utrecht, The Netherlands

eBay Revive 2024

Testing: Do More With Less

July 2024 San Jose, California, United States

Beyond Coding Podcast

In the podcast we discuss how teams can develop high-quality software while continuing to deliver features quickly.

July 2024 Hilversum, The Netherlands

JSNation 2024

Testing: Do More With Less

June 2024 Amsterdam, The Netherlands

Eugene Fidelin

Engineering Manager & Frontend SME @ eBay

Amsterdam, The Netherlands

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