Alejandro Fernández
Lead Software Engineer at G2
Barcelona, Catalonia, Spain
Summary
🤩
Rockstar🎓
Top SchoolAlejandro Fernández is a Lead Software Engineer based in Barcelona with 11 years of experience specializing in Ruby on Rails backend development, performance analysis, and systematic tech-debt reduction. He has progressed through senior and lead roles at companies like XING, Gartner, and currently G2, consistently taking ownership of backend architecture and mentoring engineering teams. Alejandro excels at diagnosing performance bottlenecks and translating remediation into measurable gains, while also driving cross-project initiatives that improve maintainability. His background includes leading backend teams for video platforms (Wuaki.tv / Rakuten TV), giving him practical experience with high-throughput media services. Beyond engineering, he pairs a technical foundation in computer science with a curiosity for film and storytelling, which informs a thoughtful, user-centered approach to system design. Colleagues describe him as a pragmatic leader who prefers fixing root causes over quick patches and who cultivates sustainable engineering practices.
11 years of coding experience
14 years of employment as a software developer
Scandinavian Film and Television, Cine y vídeo, Scandinavian Film and Television, Cine y vídeo at Københavns Universitet - University of CopenhagenCineastas de vanguardia. Una aproximación a 10 autores esenciales, Cineastas de vanguardia. Una aproximación a 10 autores esenciales at Centre de Cultura Contemporània de Barcelona (CCCB)Understanding Memory: Explaining the Psychology of Memory through Movies, Cine y vídeo, Understanding Memory: Explaining the Psychology of Memory through Movies, Cine y vídeo at Wesleyan UniversityUPC Universitat Politècnica de CatalunyaHistoria del cine y análisis fílmico, Cine, vídeo y fotografía, Historia del cine y análisis fílmico, Cine, vídeo y fotografía at La Casa del CineMaster en buscadores, Master en buscadores at Universitat Pompeu FabraUn travelling por el cine asiático, Cine y vídeo, Un travelling por el cine asiático, Cine y vídeo at Cine AsiaSeminario en Internacionalización del SEO, Informática, Seminario en Internacionalización del SEO, Informática at IEBS Business School
Spanish, Catalan, English
Github Skills (103)
ruby10
activeadmin10
ruby-client10
slugify10
slug10
arbre10
rails10
elasticsearch-client10
permalink10
friendly-url10
plugin10
presenter9
html-parser9
uri9
ids9
Programming languages (4)
Github contributions (5)
alejandroperea/activeadmin
Dec 2021 - Dec 2023
The administration framework for Ruby on Rails applications.
Contributions:19 pushes, 13 branches in 1 year 11 months
ruby-on-railsrails-applicationsrailsadministrationruby
alejandroperea/friendly_id
Dec 2021 - Dec 2024
FriendlyId is the “Swiss Army bulldozer” of slugging and permalink plugins for ActiveRecord. It allows you to create pretty URL’s and work with human-friendly strings as if they were numeric ids for ActiveRecord models.
Contributions:6 pushes, 6 branches in 3 years
armyrailsstringsrubybulldozer
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