Michel Rodriguez

Consultant, Perl and XML

xmltwig@gmail.com

I am a Perl developer.

My main area of expertise is XML, but I also work with all sorts of other types of data. I can offer a wide range of services, from data conversion, data cleanup, data enhancements through machine learning to web scraping and full-fledged SaaS.

In 20 years of work with Perl I have talked a numerous Perl conferences, taught the Perl & XML class at the O'Reilly Perl University and I am the author of a few CPAN modules, most notably XML::Twig.

Recent Projects

• SaaS: management tool for the network of external experts for a consulting firm, with full-text search of documents in various formats, email alerts...
  stack: linux, apache + starman, dancer2, perl, DBIx::Class, postgresql, bootstrap
  challenges: deal with a range of document formats, manage servers.
• Request Tracker (RT): development of RT 5. New features, "coring" existing extensions, integration with external services, custom development, support
  stack: linux, perl, mason, DBIx::SearchBuilder
  challenges:maintaining a complex tool, understanding customers requirements.
• XML: pre-processing of XML files to adapt them to an existing tool
  stack: windows, XML::Twig
  challenges: adapting to a black-box system to produce the desired output.
• Machine Learning: categorization of tenders, assigning a CPV (Common Procurement Vocabulary) code based on their title. Implemented as a micro service returning JSON
  stack: linux, perl, TensorFlow, grocery, starman, Lingua::Stem, dancer2
  challenges: obtain training data, monitor and adjust the system behaviour.
• Web Scraping: scraping of a range of public websites to feed a search engine
  stack: linux, perl, phantomJS/CasperJS, SQLite
  challenges: structure the data, monitor changes in websites structure.
• mif2mml: tool converting FrameMaker equations into MathML (github repository).
  stack: perl, Parse::RecDescent, XML::Twig
  challenges: cover the entire MIF specification, based on Adobe's docs.
• Open Source: creator of XML::Twig, widely used to process XML data in Perl
  challenges: make sure the module installs and passes the tests on a wide variety of configuration, answer questions about it and general proselitism about the module.

Education:

1987: Degree in Computer Science from ENSEEIHT (Ecole Nationale Supérieure d'Electronique, Electrotechnique, Informatique et Hydraulique de Toulouse), equivalent to a Masters Degree.

Skills

Programming Languages

Perl, Javascript, XSLT, C.

DBMS

PostgreSQL, SQLite, Oracle, MySQL, SGML/Store.

Web

Apache, CSS, JavaScript, Puppeteer, Bootstrap, Dancer2, Web Scraping.

Operating Systems

Unix: mostly Linux.

Other

Revision control tools (git), Artificial Intelligence (Machine Learning).

SGML/XML

XML modeling, conversion to XML, XML conversion to HTML, style sheet development, SGML databases, XML data processing.

Languages

French (mother tongue), English (fluent), Italian (spoken), Spanish (spoken).

Past Positions

2000-2025

Consultant, Perl & XML

1996-2000

Senior Programer-Analyst for the IEEE Standards Department.

1992-1996

SGML related studies and prototypes for Airbus

1989-1992

Quality Assurance for the SMART project (250 man x year) for Airbus

1988

Artificial Intelligence expert for ESA (European Space Agency)