Sander Korf
Freelance AI Engineer & Full Stack Developer at MR MARVIS
Amsterdam, North Holland, Netherlands
Summary
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Rockstar🎓
Top SchoolSander Korf is a pragmatic full-stack and AI engineer with 10+ years of hands-on experience building production-grade TypeScript and Next.js systems that remove operational bottlenecks and automate tedious work. He architects and ships custom generative AI assistants and pipelines—examples include Claude-based agents that automate PR tasks and AI claim handlers for insurance—while optimizing e-commerce search and checkout flows to measurably improve conversion. Comfortable leading teams and projects, he’s delivered scalable serverless architectures, CI/CD and automated E2E testing (Playwright/GitHub Actions) and has contributed improvements to the popular Playwright project around component testing for Vue and Svelte. Based in Amsterdam, he pairs technical depth with product-focused delivery and a knack for turning “that’s how we’ve always done it” into systems that actually talk to each other.
10 years of coding experience
13 years of employment as a software developer
Bachelor, Information Engineering, Bachelor, Information Engineering at Windesheim FlevolandMinor, Business Information Management, Minor, Business Information Management at Hogeschool van UtrechtMasterclass Entrepeneurship, Masterclass Entrepeneurship at Erasmus University RotterdamMasterclass Executive Program Sales Management, Masterclass Executive Program Sales Management at Nyenrode Business University
Dutch, German, English
Stackoverflow
91reputation
3kreached
15answers
0questions
Github Skills (15)
playwright10
component-testing10
vue10
vue-jsx10
jsx9
svelte9
typescripts8
typescript8
test-automation8
typescript-types8
search-engine6
google-search6
wordpress6
metadata6
youtube-api6
Programming languages (12)
Github contributions (5)
microsoft/playwright
May 2022 - Jan 2023
Playwright is a framework for Web Testing and Automation. It allows testing Chromium, Firefox and WebKit with a single API.
Role in this project:
Front-end Developer
Front-end DeveloperContributions:99 reviews, 86 commits, 223 PRs in 8 months
Contributions summary:Sander primarily contributed to the Playwright framework by enhancing its component testing capabilities. Their work focused on adding type safety for mount options, specifically targeting Vue, Vue2, and Svelte component testing. They implemented the ability to update and re-render components with new props and events without fully remounting them, which improved the developer experience. Furthermore, they addressed issues related to Vue.js components.
web-testingchromiumtesting-toolsbrowser-automationfirefox
sand4rt/playwright-ct-angular
Feb 2023 - Mar 2023
Playwright Angular component testing.
Contributions:33 releases, 1 review, 43 commits in 13 days
angularcomponent-testingplaywrighttesting
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