Julian Betancourt
Senior Software Engineer at Sinch
Madrid, Community of Madrid, Spain
Summary
👤
Senior🎓
Top SchoolJulian Betancourt is a Senior Software Engineer based in Madrid with 10 years of experience building robust front-end and Node.js backends using TypeScript, React, and modern testing and observability tools. He has driven complex migrations and microfrontend initiatives at scale—improving frontend SLOs, regionalizing messaging features, and consolidating codebases into monorepos. Julian combines product-minded frontend work (auth flows, onboarding, marketing sites) with backend-for-frontend design, automated testing practices, and Datadog-driven performance monitoring. He has a track record of introducing best practices—leading TypeScript and hooks adoptions, moving teams from Enzyme to react-testing-library, and championing test coverage and e2e suites. Comfortable in fast-moving startups and large platforms, he translates real-time operational needs (websockets, maps) into polished user experiences. Outside typical deliverables, he’s shown initiative in organizer and cross-functional roles that help scale teams and processes internationally.
10 years of coding experience
6 years of employment as a software developer
Full Stack Web Development Certification, Computer Software Engineering, Full Stack Web Development Certification, Computer Software Engineering at freeCodeCampBachelor of Science (B.Sc.), Computer Engineering, Bachelor of Science (B.Sc.), Computer Engineering at Universidad EAN
Dutch, Spanish, English
Stackoverflow
357reputation
42kreached
0answers
11questions
Github Skills (51)
git10
javascript10
github10
vercel10
corona10
static-site-generator10
typescript10
nextjs10
browser10
server-rendering10
react-framework10
ssg10
compiler10
react10
hybrid10
Programming languages (5)
Github contributions (5)
julianbetancourt/julianbetancourt.co
Apr 2021 - Jun 2022
Contributions:4 commits, 3 PRs, 28 pushes in 1 year 2 months
julianbetancourt/julianbetancourt
Apr 2021 - Jun 2024
Contributions:10 pushes, 1 branch in 3 years 2 months
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