I am a curious person who studied Physics and Math when I was young. Through the years, I developed a passion for handling large datasets and using compression to enable their analysis using regular hardware that is accessible to everyone.

I am leading the Blosc Development Team, and currently interested in determining, ahead of time, which combinations of codecs and filters can provide a personalized compression experience. This way, users can choose whether they prefer a higher compression ratio, faster compression speed, or a balance between both.

As an Open Source believer, I started the PyTables project more than 20 years ago. Currently, and after 25 years in this business, I am the proudly owner of two prizes that mean a lot to me:

• 2023: NumFOCUS Project Sustainability Award
• 2017: Google’s Open Source Peer Bonus

You can know more on what I am working on by reading my latest blogs.

• Blosc Development Team: May 2014 - Today

  BDFL. Working on designing and coding libraries for efficiently compressing large datasets. Our main projects are:

  • C-Blosc
  • Python-Blosc
  • C-Blosc2
  • Python-Blosc2

  In particular, C-Blosc2 and Python-Blosc2 implement very powerful yet flexible multidimensional containers for large datasets (NDim and NDArray).

• ironArray SL: October 2021 - Today

  CEO. Developing libraries for overcoming the limits imposed by technology when computing with multidimensional arrays, specially where the memory bandwidth becomes a bottleneck. Expert in compression applied to storage and computation.

• University of Oslo: Consultant --- September 2016 - September 2018

  Collaborating on performing large scale simulations of air pollutants via FLEXPART.

• The HDF Group: Consultant -- August 2016 - December 2018

  Working on support for filters for HDF5 and other projects.

• University of Oslo: Data Consultant --- September 2014 - January 2016

  Collaborating in the orchestration codebase for SHyFT, an OpenSource hydrological toolbox

• UberResearch GmbH: Software Engineer --- September 2014 - April 2015

  Python programming, profile and optimization of applications, database optimizations.

• Continuum Analytics: Senior Software Engineer --- January 2012 - May 2014

  Designing and coding libraries to cope with extremely large datasets (Blaze), specially in the I/O to memory and disk backends. Also involved in providing consulting services about handling big data for our customers.

• BMAT: Software Engineer --- February 2011 - December 2011

• Universitat Jaume I:: Assistant professor (Physics) --- February 2010 - September 2011

• PyTables: Software developer & consultant --- May 2008 - June 2011

• Cárabos Cooperativa Valenciana: Executive Director --- April 2005 - April 2008

• Universitat Jaume I:: Assistant professor (Physics) --- March 2003 - September 2005

• PyTables: Software developer --- Aug 2002 - March 2005

• Servicom2000

  • System architect May 2000 - May 2001

  • Technical director Jan 1999 - May 2000

• Servicom (Valencia branch office): Technical director --- Aug 1996 - Jan 1999

• Universitat Jaume I: Scientific computing analyst --- Sep 1991 - Jul 1996

• IFIC - Institut de Física Corpuscular (Universitat de València - CSIC)

  • System administrator assistant for the computer center --- Jan 1991 - Jul 1991

  • Research fellowship holder --- Jan 1989 - Dec 1990

• Universitat Jaume I

  • PhD student in Mathematical Methods --- 1996 - 2002 Thesis name "Application of the simplectic integrators to the study of Hamiltonian systems". Thesis advisor: Prof. F. Casas. Unconcluded.

  • Master of Science in Mathematical Methods --- Finished in May 2002 This is an official recognition for the PhD courses followed and research trajectory.

• Universitat de València

  • PhD Student at IFIC ("Institut de Física Corpuscular") in València --- Jan 1989 - Dec 1990

    Spent one year and half at CERN (Geneva, Switzerland) working in the ToF (DELPHI experience) detector data acquisition system. Read "Tesi de Llicenciatura" named "The Data Acquisition System of the Time of Flight (ToF) Detector of DELPHI" in June 1990.

  • Master of Science in “Electronics and Computer Sciences” and “Theoretical Physics” --- 1982 - 1988

    Concluded both Masters in Physics studies.

• Using Blosc2 NDim As A Fast Explorer Of The Milky Way (Or Any Other NDim Dataset). Proceedings of the 22nd Python in Science Conference, 2023. DOI 10.25080/gerudo-f2bc6f59-000.

• Why Modern CPUs Are Starving and What Can Be Done about It. Computing in Science & Engineering, March/April, 2010.

• Processing and Analyzing Extremely Large Amounts of Data (paper version). Presented at the PyCon 2003 conference, held in Washington DC, from 26th to 28th of March, 2003.

• More than 20 articles in several scientific reviews, like “Physics Letters B”, “Nuclear Physics”, “Nuclear Instrumentation and Methods” and “Zeit. fur Physik”. Years 1990 and 1991.

Republication without permission is forbidden.