Javier Aguilar
Senior Full Stack Product Engineer at Freelancer- Self employed
Berlin, Germany
Summary
🤩
Rockstar🎓
Top SchoolJavier Aguilar is a Senior Product and Full-Stack Engineer based in Berlin with 15+ years building and scaling web products end-to-end and 11 years of sustained professional experience. He spans frontend, backend, data and cloud-native infrastructure, shipping customer-facing features in TypeScript, Node, React, SQL and serverless/AWS environments while owning architectural and delivery decisions. Javier has led technical teams and launched product initiatives—most recently as a tech lead for B2B invoicing and as a senior engineer driving search and analytics—while also bootstrapping multiple early-stage products and private-cloud orchestration. He brings hands-on AI integration experience, having productionized prompt engineering and text/image generation workflows across products. An active open-source contributor, Javier improved usability and compatibility on popular UI components like a Font Awesome icon picker and Bootstrap colorpicker, demonstrating attention to polish and backward compatibility. Comfortable switching between high-level roadmaps and debugging production incidents, he blends product-minded thinking with deep implementation skills.
11 years of coding experience
16 years of employment as a software developer
Senior Associate Degree Computer Systems Administration Networking and Databases, Senior Associate Degree Computer Systems Administration Networking and Databases at IES Pau CasesnovesData Science Training Data Processing and Data Processing Technology/Technician, Data Science Training Data Processing and Data Processing Technology/Technician at WBS CODING SCHOOLUOC (Universitat Oberta de Catalunya)
Spanish, Catalan, English, Italian
Stackoverflow
2,624reputation
326kreached
17answers
14questions
php
top-5%
Github Skills (19)
javascript10
browser-extension10
css10
user-interface10
chrome-extension10
chrome-app10
font-awesome10
chrome-plugin10
php9
html9
ui-design8
mod-rewrite6
querystring6
htaccess6
sqlite6
Programming languages (22)
Github contributions (5)
itsjavi/fontawesome-iconpicker
Oct 2016 - Jun 2020
Font Awesome Icon Picker component for Bootstrap.
Role in this project:
Front-end Developer
Front-end DeveloperContributions:7 releases, 36 commits, 23 PRs in 3 years 8 months
Contributions summary:Javier primarily focused on updating the Chrome extension for the Font Awesome Icon Picker, ensuring compatibility and incorporating the latest CSS from the main repository. They fixed links to the new repository URLs and addressed issues related to the Chrome extension's functionality. Furthermore, the user implemented improvements for compatibility with FontAwesome 5.0 and addressed open pull requests and issues, including enabling search functionality and adjusting the picker's width.
fontwoff2iconpicker-componenticon-picker
itsjavi/bootstrap-colorpicker
Oct 2016 - Apr 2022
Bootstrap Colorpicker is a modular color picker plugin for Bootstrap.
Role in this project:Front-end Developer
Front-end DeveloperContributions:23 releases, 272 commits, 51 PRs in 5 years 7 months
Contributions summary:Javier appears to have been primarily focused on front-end development, making updates to the project's codebase by fixing bugs, adding features, and making other UI improvements. The commits include changes to Javascript files, documentation and styles files for the colorpicker. The changes are also focused on improving the component's template to support new components, and fixes for modal and different UI issues.
bootstrap4bootstrap-componentsjquerybootstrap3colorpicker
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