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)
postgresql10
jsonb10
windows10
authentication10
db210
hasura10
form-validation10
pagination10
serverless10
backend10
encryption10
firebase10
hybrid10
javascript10
graphql-api10
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
nodejsoauthproxy
fabioespinosa/runregistry_api_client
May 2019 - Jun 2020
Python package to query the new CMS Run Registry
Contributions:46 commits, 1 PR, 37 pushes in 1 year 1 month
cmspython
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