Sebastian Londoño
Senior Frontend Developer at Coolblue
Amsterdam, North Holland, Netherlands
Summary
👤
Senior🎓
Top SchoolSebastian Londoño is a Senior Frontend Developer with over a decade of experience building high-scale, user-focused web applications, currently shipping at Coolblue in Amsterdam. He blends hands-on front-end engineering and technical leadership—previously serving as Technical Lead at La Haus and driving frontend decisions for Morningstar—while mentoring teams across agency and product environments. Deeply focused on accessibility and SEO, he brings practical Hybris and Spring back-end experience from earlier full-stack roles, which helps him bridge design and architecture trade-offs. Comfortable in Google-scale projects from his time at Huge, he favors pragmatic, maintainable solutions that improve performance and inclusivity. A systems engineering graduate, Sebastian pairs a strong engineering foundation with a keen eye for polishing the user experience and developer workflows.
10 years of coding experience
6 years of employment as a software developer
Bachelor of Engineering (BE), Systems Engineering, Bachelor of Engineering (BE), Systems Engineering at Universidad Escuela de Administración y Finanzas y Tecnologías
English, Spanish
Github Skills (6)
codex9
vue7
javascript6
react6
server-side-rendering5
css5
Programming languages (3)
Github contributions (5)
svargaslondono/github-page-source
Jun 2020 - Aug 2022
Source code for svargaslondono.github.io site.
Contributions:29 pushes, 1 branch in 2 years 2 months
guardianes-ancestrales/website
Mar 2024 - Apr 2024
Contributions:5 reviews, 28 PRs, 18 pushes in 1 month
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