Javier Caballero Barrios
I am a computer systems engineer specialized in programming languages and databases, networking, electronics, and technology. I enjoy turning theoretical knowledge into practical solutions for everyday life.
About
I am a computer systems engineer specialized in programming languages and databases, networking, electronics, and technology. I enjoy turning theoretical knowledge into practical solutions for everyday life.
With over 15 years of experience, I have dedicated my career to building high-performance systems based on multiple architectures and stacks with the idea of
bringing down to earth abstract ideas or concepts and convert them into real-world applications.
I believe technology that works for people is the key to achieving a higher quality of life and I am excited to contribute to projects that improve day-to-day living.
In Mexico, I built time attendance SaaS systems; I worked for the Oil&Gas industry building control and monitoring systems.
In China, I worked mostly on the E-Commerce sector building platforms for international companies so that they could sell their products on that market.
In Europe (mainly Germany and Spain), I’ve been building digital marketing solutions for the vehicle industry.
Whether it is debugging legacy interfaces or designing new cloud-native services, troubleshooting
intricate system bottlenecks or architecting new event-driven services, my approach is always
defined by a proactive and curious mindset.
- 17 years' experience
- Joined January 2026
Skills· 24
Languages
- Spanish; CastilianFluent
- EnglishFluent
- ChineseBeginner
- GermanBeginner
Industry experience
- Software & Internet
- Professional Services
- Computers & Electronics
Work experience· 9 roles
Leader of a product team responsible for the Digital Retail Websites platform, collaborating with backend and frontend engineers to design and develop services enabling dealers to create and maintain their own vehicle retail websites. Tech stack includes AWS, Docker, PHP 8, Next.js. Designs and develops API services (Symfony 7 / PHP 8.4 / API-Platform 4) for website configurations, vehicle/dealer/geolocation data and related services. Develops a web-based tool for managing data related to vehicle manufacturers, models and translations (Symfony 7 / PHP 8.4). Maintains legacy services (datacenter tool, translation tool). Acts as backend engineer, code reviewer and mentor.
Backend developer using PHP / Zend Framework / Doctrine / MySQL / Java to maintain and extend the CMS/Vehicle Management System. Designs interfaces to consume third-party web services (SOAP and REST). Implements financing and insurance calculators using data sources from Spain and/or France (Cetelem, Mutua, BNP). Release Manager and leader of a Task Force Team. Maintains Vehicle Information Server (Java) with data from Eurotax, DAT, Schwake and Jato. Backend lead for Niw/Faconauto, Nissan Spain, Honda Spain projects. Responsible for technical evaluation of requirements, task breakdown, and timeline estimation; onboarding new team members.
Backend team member using PHP / Zend Framework / Doctrine / MySQL / Smarty / Java / jQuery to create new modules and features for an existing CMS/Vehicle Management System. Development of the E-Commerce platform for the second biggest vehicle reseller group in China (Zhongshen). Development and maintenance of online payment modules implementing the two main Chinese payment gateways WeChat and Alipay.
Education
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