Sebastian Arce
Chief Technology Officer at Opencasa
Viña del Mar, Valparaiso Region, Chile
Summary
👤
Senior🎓
Top SchoolSebastian Arce is a CTO and seasoned software leader with 12 years of experience building scalable web platforms across Chile, Spain and the USA. He combines hands-on full‑stack development in React and Node.js with data-driven product engineering, having driven near real-time property valuations under 30 seconds with under 5% error and predictive neighborhood growth models for Opencasa. A former Java and Python architect, he has a track record of modernizing monoliths toward microservices, improving delivery velocity by ~70% and lifting teams from specialists to full‑stack practitioners. Known for performance-first frontend work at large e‑commerce (where checkout performance and conversions improved materially), he mentors engineering teams in TDD, automation and operational best practices. Based in Viña del Mar, he’s equally likely to be debugging a complex backend model as experimenting with Django for fun — and he credits his cat for many late-night coding sessions.
12 years of coding experience
10 years of employment as a software developer
Analista Programador Computacional, Informática, Analista Programador Computacional, Informática at Duoc UCPontificia Universidad Católica de Valparaíso
English, Spanish
Github Skills (14)
javascript4
css4
react4
frontend3
python3
typescript3
sql2
storage2
rails-api1
rails1
api1
youtube1
ruby-on-rails1
ruby1
Programming languages (2)
Github contributions (5)
aether7/radiojs
Apr 2016 - Mar 2021
Contributions:10 commits, 19 PRs, 13 pushes in 5 years
aether7/react-tutorial
Mar 2016 - Dec 2017
Contributions:7 PRs, 47 pushes, 7 branches in 1 year 9 months
reactjsjavascriptreactreactjs-tutorial
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