Brief summary

Designer and developer of complex software and website solutions mainly in C/C++/Java/PHP/Perl with database access (MySQL, MS SQL, PostgreSQL).

My field of interests are Web Services. I can design, code everything from scratches, including code, database, frontends, middleware, backends, infrastructure, linux server configuration, etc.

Recently hacking around Android, Apache Sphinx, Apache Solr and some Hadoop.

Researching Optical Character Recognition methods for Japanese handwritten characters and speed improvements using heuristics, Hidden Markov Models and language model.

Key programming languages:

C, C++, Java, PHP

Additional programming languages:

Perl, C#, Delphi, Python

Web technologies:

HTML, CSS, JavaScript, SQL, jQuery, XSLT

Software Development IDE:

Eclipse, NetBeans, Visual Studio

Other:

Linux Maintenance (Console) and coding, multithreaded coding, networking essentials, protocols, design pattern, library coding, UML, backend coding, frontend design and coding

Recent research

1. Notifra - XMPP based notification framework for Android with PHP/Java backends

   Android client (youtube)
   PDF presentation

2. 3 Big Smartphone Ideas

   Presentation

3. Adaptive, corpus-based speed optimizations for handwritten or camera-captured CJK OCR

   As for now, some tools are available to download (open-source).

   ETL9B → NHOCR format - conversion tool

   at github (open-source, C++, Eclipse project)

   HCL2000 → NHOCR format - conversion tool

   at github (open-source, C++, Eclipse project)

   HadoopGrams - N-gram generator for Hadoop

   at github (open-source, Java, Eclipse project)

4. Eduroam Trial - software in Perl to manage trial accounts for Eduroam service (Perl, SQL, Radius)

Old projects

1. Paragway - simple software to learn languages

   Download (Windows binary only)

   Desktop application for Windows to learn vocabulary.

   Three learning modes: Flash cards, Select correct and Type in both directions (foreign -> your language and vice versa).

   Support for exotic languages with automatic layout change. Try it!

2. Websites (BACKEND + CODING)

   http://platforma.hermin.edu.pl (at GINT)

   Closed software. More information at http://www.hermin.edu.pl.
   Demo (in Polish): http://platforma.hermin.edu.pl/demo/low2.avi

   • SQL database design (40 tables)

   • Software in PHP + SQL + AJAX

     1. Fully Object Oriented code
     2. More than 100 classes
     3. Implemented lots of components, eg.:
        1. tasks validation (manual, automatic)
        2. forum
        3. moderation
        4. bug-tracking
        5. reports
        6. caching
        7. mailing
        8. templates
        9. localization
        10. attachment manager
        11. ajax to object mapper
        12. and so on.

     Software in Java

     1. Applet game about Mathematics (very popular)

     Linux system administration

     1. Virtualization (OpenVZ)
     2. Custom backup solution for lots of small files
     3. Simple maintenance scripts in Perl and Python
     4. Integration with LiveTex and MathTex, including bugfixing:
        http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=620375

   http://www.vela.net.pl/pl/cms/systemcms/ (at ESC S.A.)

   Commercial software, please refer to screenshots.

   • Implemented modules such as gallery, banners, caching mechanism, etc.

   http://jovis.nazwa.pl/exeman/apasearch/map2.php (hobby project)

   Apartments search engine with Google Maps API.

   • Plugins for Apache Nutch (crawling, extracting data using custom regular expressions)
   • Uses Apache Solr
   • Integration with Google Maps
   • Endpoint in PHP

   http://jovis.nazwa.pl/exeman/tenprices/ (hobby project)

   Prices of products around the world.

   • PHP + SQL
   • Integration with Google Maps

   Eduroam Trial Management Console

   (url unavailable, code on request)

   • Web service in Perl with SQL access (with transactions)
   • Database abstraction layer
   • Radius server abstraction layer
   • After verification will be released as open-source code

   http://www.japanid.org, http://www.japanid.com, http://www.japanid.pl

   • PHP + SQL + AJAX
   • Not maintained anymore

   Websites (FRONTEND)

   Lots of websites coding (HTML + CSS + Javascript/jQuery/Ajax) for Japanese companies mostly. List available on request.

   OTHER (small hobby websites)

   http://www.nihonsun.net

   • Forum about Japan (quite popular in Poland - second biggest)
   • Customized template
   • AJAX shoutbox in PHP written from scratches (requires login)