I have a set of principles I like to follow at my jobs, please read them. https://portfolio.kartones.net/myprinciples/
(Mostly) Backend and APIs development, migrations and rewrites. Legacy systems containerization and other DevOps tasks. Outreach (committee chairman).
Bought by Eventbrite.
Led cross-functional team (2 other people) in charge of building customer-facing services: web-app, public API and satellite services like email, notifications, user accounts and Facebook video distribution. Backend APIs and microservices development, DevOps tasks and on-call support. Mentoring of junior engineers and recruiting.
Reason for leaving: Different priorities between business and tech.
Backend and APIs development, including scalability rewrites and new components like data connectors (Twitter, GDrive, Dropbox and others), new import formats, user groups/companies and internal tools like a quick rollback feature. Outreach and recruiting.
Reason for leaving: Challenging new position (tech lead), being able to define tech & procedures from the beginning.
Reason for leaving: Most challenging work completed, challenging new position (fully backend engineer).
Frontend & backend development. Multiple website redesigns (1st almost full code rewrite) and focus on high scalability. Worked on main and mobile websites, backoffice and internal tools. Mentoring of junior engineers, outreach (committee chairman) and recruiting.
Reason for leaving: Challenging new opportunity, being able to define tech from the beginning.
Backend development of web applications and SOA & mobile web services. Indoor routing R&D (optimal paths, data storage, relevant step-by-step instructions).
Madrid R&D office was shutdown by NOKIA/Here.
Reason for leaving: Switch to product development.
Speaker at conferences, events and local user groups: https://slides.kartones.net
Technical reviewer of Packt Publishing books: LEGO Mindstorms EV3 Essentials (https://portfolio.kartones.net/content/packt_lego_mindstorms_ev3_essentials_book.jpg) and Learning LEGO MINDSTORMS EV3 (https://portfolio.kartones.net/content/packt_learning_lego_mindstorms_ev3_book.jpg).