Sergio Hernández
Chief Technology Officer at Sumauto
Madrid, Community of Madrid, Spain
Summary
👤
Senior🎓
Top SchoolSergio Hernández is a CTO and product-minded technology leader with nine years of experience scaling search, big data and aggregation platforms across Europe from backend engineering to executive leadership. He combines hands-on architecture and DevOps expertise (cloud migrations, ETL, Solr/Lucene, LitElement migrations) with product strategy, having driven measurable growth like a 50% increase in pages per visit and a 20% CTR uplift while transforming product prioritization away from a feature factory. Comfortable leading data teams and building AVMs and data lakes, he’s equally adept at reducing technical debt and establishing SEO governance and modular, performant front-end architectures. Sergio champions outcomes-driven, empathetic leadership and OKR-driven execution, embedding prioritization frameworks (RICE/DRICE, value-effort) as standard practice. Based in Madrid, he brings a pragmatic blend of technical depth and product intuition, often serving as the natural bridge between engineering and commercial teams. An early systems engineer with telecom roots, he retains a practical focus on reliability and sustainability when delivering fast, user-focused products.
9 years of coding experience
15 years of employment as a software developer
I.T.T. Telemática, Telecomunicaciones, I.T.T. Telemática, Telecomunicaciones at Universidad de Alcalá
English, Spanish
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (23)
language-translation9
aws8
single-page8
smooth-scrolling8
hugo-theme7
terraform7
smooth6
postcss6
scrolling6
terraform-provider6
boto6
hugo6
forestry6
testing6
static-site5
Programming languages (4)
Github contributions (5)
grimoirebots/grimoirebots
Feb 2022 - Dec 2024
Contributions:25 PRs, 40 pushes, 10 branches in 2 years 9 months
cauldronio/cauldron
Feb 2020 - Jul 2021
Contributions:52 commits in 1 year 4 months
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