Work experience

January 2017 – December 2018
Valencia, Spain

Lead Mobile Developer

Closca Design

Featured on Financial Times, El País, Mashable, etc.
Worked on the App for the Closca Bottle: A sleek, elegant water bottle designed to change the way you find, carry and drink water.
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February 2015 – March 2017
Valencia, Spain

CEO, Lead Mobile Developer


Led a team of innovators striving to help other students like themselves in the task of getting better grades. Developed an App that allowed these students to match themselves with the most suitable study partners and businesses. Incubated at Demium Startups Valencia and part of Santander Bank’s ‘YUZZ’ Entrepreneurship program (now ‘Xplorer’).
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December 2014 – January 2017
Valencia, Spain

CEO, iOS Developer

SplendidON, C.B. (RideU)

Worked on a mobile App called ‘RideU’. (iOS, Google Glass)
This App worked in 242 cities all around the world and helped users commute using public bicycles.
This software has now become part of the Closca Design ecosystem and is no longer being maintained, although a new and vastly improved version might pop up in the future. Part of Fundación Telefónica’s Think Big Youth Entrepreneurship program.
Watch the Demo Day or a Spanish TV appearance.
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A hobby of mine is spreading my passion for computers to people of all ages

(2018) Divulgation. A 400-pager aimed at all ages detailing how to do simple, day-to-day tasks using macOS 10.14 ‘Mojave’.

(2013) iOS development, divulgation. A simple ebook aimed at all ages, filling the gap in Spanish resources at the time.

Certificated merits

Jun 2017

Certificate of Specialization in Entrepreneurship

Santander YUZZ Program (Now ‘Xplorer’)

Completed a one-year program developing a personal project and covering topics such as:
Design Thinking, Lean Startup, marketing, financing a project, investors and public speaking.
Dec 2015

Think Big - Level 2 Social Entrepreneur

Telefónica Foundation - Social Entrepreneurship Program

Reached the maximum level of a 3-year program resulting in this Demo Day keynote speech.
Jul 2015

Speaks 5 languages

All certified

Spanish: Native
English: Certificate of Proficiency in English (C2 Level, Grade A)
German: Deutsch C2 - Kultusministerkonferenz
Valencian/Catalan: Valencià C1 - Grau mitjà de la JQCV
French: DELF B2 - Diplôme d’Études en Langue Française (Ministère de l’Éducation Nationale)

Projects (WIP)



A lightweight i8080 emulator.

Closca Water Bottle App

Changing the way you find, carry and drink water.


Bike sharing app that used to work in 242 cities around the globe.

Robotics & Computer Vision

Two small projects developed at the UPV robotics lab.


This app used to put in contact students with study partners and local businesses.


  • @cecetaca on Keybase.
  • @cecetaca
  • Monday 9:00 to 13:00
    Otherwise email to book an appointment