Xavier Reynau
Founder at Seiro
Barcelona, Catalonia, Spain
Summary
👤
Senior🎓
Top SchoolXavier Reynau is a founder and full-stack engineer with over 10 years of experience building scalable, business-focused web platforms and products from MVP to production. Based in Barcelona, he stays hands-on leading compact teams that prioritize speed, clarity, and measurable outcomes, often embedding AI and automation to boost growth and efficiency. His background spans high-traffic systems, microservices migrations, real-time tooling, and performance-driven UX work at companies like ThoughtWorks and Ironhack. Xavier has a track record of turning loose ideas into launch-ready products and even rebuilt legacy apps into modular, maintainable systems—skills he now channels into SEIRO, where zero wasted motion is a design principle. He pairs practical engineering (React, Node, .NET, Electron) with product strategy, making him a technical partner who understands business trade-offs.
10 years of coding experience
6 years of employment as a software developer
Nanodegree Full Stack Developer, Nanodegree Full Stack Developer at UdacityUPC Universitat Politècnica de Catalunya
Spanish, Catalan, English
Stackoverflow
194reputation
3kreached
6answers
5questions
Github Skills (29)
tmx10
tilemap9
myo8
tiled8
boost6
firebase6
flask6
context-menu6
react-native-flatlist6
python6
mobx-react6
firebase-authentication6
react-native6
webapp5
voice5
Programming languages (7)
Github contributions (5)
Dirken/S4U
Feb 2016 - Jan 2017
Contributions:7 commits in 10 months
signreact-nativeandroidtranslatesmobile-app
Reynau/reynau.github.io
Aug 2016 - Apr 2022
Contributions:69 pushes, 3 branches in 5 years 9 months
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