Software engineer in Graphisoft Rt 
Jan 2005 - Aug 2005
Working as a consultant doing various tasks.
YIT Arttu, later Graphisoft Constructor 
2005
Originally ArchiCAD add-on for Finnish construction company YIT Oyj that was later adopted by Graphisoft Rt. Used for estimating costs of construction. Petteri's tasks were doing specification with Olli Nummelin and Susanne Backas from YIT and implementing the product.
M.A.D. Logs

2004
See Products. Petteri's tasks was designing the product UI and implementing it.
AthosNews 
2004
EU-funded 3-year DUMAS-project researching speech based telephony systems (http://dumas.uiah.fi/). Made telephony newspaper reading system for Finnish Federation for the Visually Impaired people with Java.
CD-Facta 2005 cd-rom 
2004, also 2003, 2002, 1997, 1996, 1994
The best Finnish cd-rom encyclopedia published by WSOY, which also is the only one, which visually impaired persons can use thanks to it's speaking interface. Petteri's part has been designing the product together with the publisher and implementing the whole product (2002-2005).
SATO 
2003
SATO, an XML based editorial system for Finnish publisher Gummerus Kustannus Oy.
Combined MS SQL Server with help of extended stored procedures to Adobe FrameMaker and Web based editing system. Petteri's tasks were database planning, implementation and FrameMaker integration.
WSOY dictionary cd-rom 
2003
A suite of cd-rom dictionaries for Finnish publisher WSOY. Petteri's tasks were designing and implementing the product with a team.
Timehouse Spech Xtra and SpeechServer 
2002, 2003
2002 Timehouse Speech Xtra, an add-on for Macromedia Director to allow developers to make their multimedia presentations speaking with speech synthesizer. In 2003 Timehouse SpeechServer for any Windows programming environment including C++, Java, Delphi and Visual Basic. Petteri's role was project management, writing documentation and coding the actual add-ons.
The insurance industry dictionary cd-rom (Vakuutusalan sanakirja) 
2002
A cd-rom dictionary for Finnish publisher Vakuutusalan kustannus. Petteri's tasks were designing and implementing the product.
M.A.D. Zonematic

2001
See Products. Petteri's tasks was designing the product UI and implementing part of it.
M.A.D. DoubleCheck

2000
See Products. Petteri's tasks was designing the product UI and implementing it.
ArchiCAD add-on for prefabricated units

2000
Custom ArchiCAD add-on made for Skanska Oyj to help converting ArchiCAD model into precast concrete elements.
TUJU 
2000
An SGML based editorial system for Finnish publisher WSOY. Database engine is Microsoft SQL Server and Adobe FrameMaker is the editing tool. Petteri's share was database planning and implementation, part of FrameMaker integration and coding of various tools.
Yritys-cd-rom 
1996, version 2.0 1998-still updated and maintained
A cd-rom targeted to persons in charge of company's bookkeeping or juridical questions. Contains quarterly material updates on cd-rom. Current version also loads updates automatically from the Internet. Published by WSOY. Petteri's tasks were designing the product together with WSOY and implementing the whole cd-rom product.
http://yritysjulkaisut.wsoy.fi/www/yj.nsf/docs/yritys-cd-rom
Nokia Monitor test 
1997
Configure your monitor correctly. This application is in use by various magazines doing monitor tests. Sadly, this application did not prevent Nokia Displays from falling prey to low-cost manufacturers.
Nokia DisplayWare 
1996
Nokia DisplayWare, a widespread application to control Nokia monitors. Petteri was in a two person team that started the work at Intel factories at Phoenix, AZ working at start with low-level USB-drivers and later implementing the Windows control panel application.
Mikropuhe, Finnish speech synthesizer 
1994 Version 1.0, Version 5.0 2003 - still active
Synthesizer engine is made by Kristian Töyrä / Timehouse Oy, text processing, interfaces and porting to various operating systems including Windows, Windows CE, DOS, Linux and Symbian OS by Petteri.
Various cd-roms for WSOY 
These cd-roms are published between 1996-2001. Petteri's tasks have been planning and implementing part or all of the products.
- Pikkujättiläinen
- Suomen päiväperhoset CD-Facta
- Kodin lääkäri CD-Facta
- Maamme-cd
- CD-Aika 1997, 1998, 2000
