Alejandro Hartlöhner
Senior Software Developer Full Stack .NET Vue.js at Frontiers
Madrid, Community of Madrid, Spain
Summary
👤
Senior🎓
Top SchoolAlejandro Hartlöhner is a Madrid-based senior full-stack developer and software architect with a decade of professional experience specializing in .NET and Vue.js for scalable web applications. He has modernized and optimized large legacy e-commerce platforms—upgrading frameworks, fixing memory leaks, containerizing services, and improving cache and startup performance to support dramatically higher traffic. Comfortable across the stack, he combines backend C#/.NET expertise with frontend vanilla JS/Vue, DevOps (Docker/Podman), search (Elasticsearch, Lucene) and automation (Selenium, TypeScript). His freelance work shows a practical eye for infrastructure and search-driven solutions, plus hands-on setup of servers, VPNs and virtualized environments. Notably, he has repeatedly turned multi-hour deployment processes into minutes and built custom scraping/search systems that drive SEO and catalog growth.
9 years of coding experience
15 years of employment as a software developer
Técnico Superior en Desarrollo de Aplicaciones Informáticas, Programación informática, aplicaciones específicas, Técnico Superior en Desarrollo de Aplicaciones Informáticas, Programación informática, aplicaciones específicas at CESUR
German, English
Github Skills (17)
editor9
microsoft9
electron9
visual-studio-code9
vscode-extension9
typescript9
visual-studio9
vscode9
error-messages8
quickbooks8
error-handling6
csharp5
dotnet4
elasticsearch1
c-library1
Programming languages (2)
Github contributions (5)
AlexHart/Hart.ErrorHandlers
Apr 2018 - Dec 2019
Set of utilities for error handling in .NET
Contributions:68 commits, 4 PRs, 47 pushes in 1 year 8 months
dotnetc-sharpcsharperror-handlinghandling
AlexHart/.NET-Core-DB-demos
Jul 2018 - Jan 2019
Examples of how to connect with different methods to different dbs in .NET Core
Contributions:2 PRs, 9 pushes, 3 branches in 6 months
dbssqlnet-coredatabase
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