Javier Fernandez
VP Of Engineering at Busuu
Madrid, Community of Madrid, Spain
Summary
👤
Senior🎓
Top SchoolJavier Fernandez is an engineering leader based in Madrid with 15+ years of experience building and scaling product-led engineering organizations, now serving as VP of Engineering at Busuu. He has progressed from hands-on backend and infrastructure work to managing multi-site teams and aligning engineering with product outcomes across Europe. Javier blends startup grit—cofounding and serving as CTO at early ventures—with enterprise experience at IKEA, giving him a strong mix of tactical delivery and strategic leadership. He mentors engineers, fosters cross-team collaboration, and maintains a practical, outcome-oriented approach to shipping reliable systems. Notably, his background includes low-level telecom and embedded systems work (SS7 stack and synchronization tools), reflecting deep technical breadth beyond typical web engineering. This combination of full-stack technical fluency and people-first management makes him effective at turning complex problems into scalable, auditable solutions.
11 years of coding experience
17 years of employment as a software developer
UOC (Universitat Oberta de Catalunya)SANS SEC560: Network Penetration Testing and Ethical Hacking, Computer security, SANS SEC560: Network Penetration Testing and Ethical Hacking, Computer security at SANS InstituteUniversidad Politécnica de Madrid
English, Spanish, Catalan, german (a2)
Stackoverflow
2,097reputation
188kreached
51answers
4questions
authentication
top-5%
Github Skills (15)
passportjs9
authentication9
nodejs9
mochajs6
objective-c6
mongoose6
ios6
javascript6
mongodb6
karma-mocha6
mandrill6
mysql6
angularjs6
transport5
nodemailer4
Programming languages (2)
Github contributions (5)
javierfdezg/dotfiles
May 2015 - May 2020
Contributions:29 pushes, 1 branch in 5 years
dddmadrid/dddmadrid.github.io
May 2017 - May 2017
Contributions:20 commits, 12 PRs, 19 pushes in 9 days
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