Fabio Espinosa
Senior Software Engineer at Aidium Mortgage CRM
Madrid, Community of Madrid, Spain
Summary
👤
Senior🎓
Top SchoolFabio Espinosa is a Senior Software Engineer and founder with 11 years of experience building full-stack, microservice-based products and leading backend and infrastructure teams. He specializes in TypeScript stacks—favoring Nest.js, Postgres, Redis, and shared type generation between front and backend—while regularly shipping React/Next.js front ends and GraphQL clients. As a hands-on lead at Aidium and former technical lead roles at Tokeny, Internxt, Toptal and CERN, he focuses on availability, performance and operational excellence across services. He also founded and runs losestudiantes.com, demonstrating entrepreneurial drive and long-term product ownership alongside professional engineering. Tech-agnostic and fast to learn, he balances pragmatic platform choices with a clear preference for developer-friendly tooling like Tailwind and SSR for SEO. Based in Madrid, he brings a blend of solo-founder grit and collaborative team leadership to complex engineering challenges.
11 years of coding experience
6 years of employment as a software developer
UdemytreehouseHigh School, High School at Colegio Anglo ColombianoUniversidad de los Andes
Spanish, English
Stackoverflow
906reputation
484kreached
15answers
6questions
ssl
top-5%
axios
top-5%
Github Skills (200)
jsonb10
serverless10
graphql-api10
browser10
pdf-viewer10
nhost10
d110
json10
static-site-generator10
gitignore10
oracle-db10
ssg10
nodejs10
backend-as-a-service10
vercel10
Programming languages (10)
Github contributions (5)
fabioespinosa/cern-oauth2-sso-node-proxy
Jan 2019 - May 2020
CERN OAuth 2.0 SSO NodeJS Proxy
Contributions:158 commits, 136 pushes in 1 year 4 months
cernproxyoauth-2authenticationnodejs
fabioespinosa/runregistry_frontend
May 2018 - Sep 2020
CMS DQM RUN REGISTRY
Contributions:285 commits, 249 pushes, 1 comment in 2 years 4 months
cms
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