Jakub Pavlík

software developer (backend)
Ruby, Python, PHP, Linux, web-related technologies

Kralupy nad Vltavou, Czech Republic

Most of programming career so far spent developing web backends. Believes in unit-testing and automated tests in general, at times practices orthodox TDD.

Contact

e-mail: jkb.pavlik@gmail.com

Working experience

05-11/2024	analysis and documentation of a Ruby on Rails application for purposes of a rewrite
07-09/2023	ThinkEasy s.r.o. - PHP programming
2021	Internet Product Development Group, Inc. - Ruby programming
2018-2020	Clientigent s.r.o. - PHP programming (Symfony)
2017-2018	Grand s.r.o. - PHP programming: developing new Symfony applications; refactoring and extending legacy systems built on ancient versions of Drupal, Nette, as well as "vanilla" PHP
2015-2017	Applifting s.r.o. - Ruby programming, mostly on Rails (+ one PHP project): backend APIs for mobile and web apps, traditional web apps, third-party system integrations
2013-2015	junior programmer at Topinfo s.r.o. - Python programming, simple web front-end work (HTML, JS), customer support, maintenance of several dozens of websites and web applications

Education

Master's degree (non-technical). Show details

2014-2016, 2017-2019	Bachelor (Bc.) + Master (Mgr.) programme "Theology" at the Faculty of Theology, University of South Bohemia in České Budějovice.
2007-2014	Master programme "Catholic Theology" at the Catholic Theological Faculty, Charles University, Prague. Failed to finish my thesis while working fulltime.
2011	one semester at the Catholic Theological Faculty, University Erfurt (Germany)
1999-2007	Gymnázium Kladno

Languages

English, German and more

Czech (mother tongue)
German (~B1)
English (~B1)
Russian (passive knowledge)
Latin, New Testament Greek (intermediate, mostly passive knowledge)

Technical skills

Systems
- Linux (effective usage, basic administration)
Programming languages and their ecosystems
- Ruby - since 2004/5 my favourite scripting language, used for all kinds of tasks; 3 years of industry experience
- PHP - around 2002 the first programming language I ever learned; since 2016 the language of most of my jobs
  - Symfony since version 3
  - Doctrine
- Python - 2.5 years of industry experience
- "Web frontend languages" - basic command of
  - HTML
  - CSS, LESS, SASS
    - Bootstrap 3, 4 (worked with, mostly creating simple administration UIs)
  - JavaScript
    - old style scripting with JQuery
    - limited experience creating browser extensions
SQL (PostgreSQL, MySQL, SQLite 3) - basic knowledge & experience
XML - I have a soft spot for XML and related technologies (XHTML, XSLT, XPath, XQuery, BaseX database, ...)
Docker - basic knowledge & experience
Typesetting
- LaTeX
- music engraving (LilyPond, Gregorio)

Code online

Contributions to third-party projects

There are some, generally small and unimpressive:

enhancements for the matthiasnoback/symfony-console-form Symfony bundle
regression report for Symfony Normalizer
implementing a feature for the widely used thor Ruby gem
proposed fixes to the ChargeBee Ruby SDK
fixes to the Frescobaldi music notation editor (Python, Qt)
bug report and fix proposal for the RocketChat Python SDK

(Dozens more can be found by browsing the Github activity log.)

Personal projects

My active personal projects are somewhat monothematic, crystalizing around two main topics:

1. Church calendar

calendarium-romanum - Ruby gem computing the Roman Catholic liturgical calendar
applications making good use of it:
- Church Calendar API
- calrom - command line interface
- script generating notation for a yearly solemn announcement of principal feasts
- ordodo - generator of an ordo - calendar with ceremonial indications and local variant entries

2. Liturgical music

gly
Custom language for gregorian chant notation. Gabc (the de facto standard language for the same purpose) redesigned to fit my needs and preferences.
lilygabc
LilyPond library (i.e. mostly Scheme code) providing support for the gabc language in LilyPond documents.
Innovative in its approach to unit-testing LilyPond extensions.
grely
Translates gabc scores to Lilypond. Leverages a PEG parser of gabc.
In adiutorium :: http://www.inadiutorium.cz
Web presentation of my musical settings of the Roman Catholic Divine Office in Czech translation + comprehensive catalogue of musical settings by other authors + the place where I blog about related topics.
Žalmy :: http://zalmy.inadiutorium.cz/
Website with Czech psalm texts pointed for plainchant psalm tones. (See e.g. Psalm 110)

3. Other

freeVikings
Ruby game project, developed 2004-2009 (i.e. back in the RAA days). The oldest part of the codebase may be the oldest publicly available bit of Ruby code written in Czech Republic.