Work Experience

2008, August - present, Survey Sampling International — Hungary, USA, Japan

Survey Sampling International (SSI) is a survey taker supplier of market research companies. He was hired in Hungary by a software supplier of SSI called Nebu. He has become a part of SSI when the development team was acquired by SSI in 2012. Please find two example initiatives below that he was contributing to.

Integrated Partnership

In 2012, he started to work on a program that could contact survey takers without having to have their email addresses. He took part in the negotiations with the third parties. The initiative has become a success and is growing steadily.

Scalability initiative

The scalability initiative aims cost reduction and providing headroom for business growth. Proven accountability guarantees him the freedom of choice in tools and methods many of which is carried into other developer teams as best practices. His team re-architected several critical software components making them extensible for future needs and also hundreds of times less resource intensive at the same time in comparison to their predecessors.

November 2013 – present, Japan: Software Architect
October 2012 – October 2013, US: Software Architect
February 2012 – September 2012, US: Senior Software Engineer
November 2011 – January 2012, Hungary: Development lead
January 2011 – November 2011, Hungary: Senior Software Engineer
January 2010 – December 2010, Japan: Suspended the contract for studies
August 2008 – December 2009, Hungary: Software Engineer

January 2008, Microsoft — Denmark

He has been offered a Software Engineer position at Microsoft Development Center of Copenhagen. He declined the offer in favor of a Ph.D. program.

February 2006 – January 2007, Positron Emission Tomography Center of Debrecen — Hungary

He spent a year of internship at the Positron Emission Tomography Center of Debrecen working with C++.

The first 6 months was dedicated to improving the user interface of medical scanners using QT4.

The second 6 months was spent on statistical image reconstruction algorithms related to the Ph.D program he enrolled in 2006. After the internship was over he got a full time offer which he declined in favor of the Ph.D program.


Building products

Software design and implementation Favorite development methods: prototype driven, test driven Paradigms: declarative, object oriented, procedural, functional, logical java / enterprise / spring boot / jboss sql / mssql / mysql web / html / javascript / css c# / .net / / visual studio / mono c / c++ / gcc / qt / visual studio


Project management with product focus People management of small teams Kaizen (also called lean at some places) Accountability on content and deadlines Negotiation, both business side and product vision side


Bash / Windows Command Line / Powershell / Active Directory / Docker LAN / WLAN / Wifi / Cellular networks (basics)


October 2009 – September 2010

The Yamasa Institute, Okazaki, Japan: Academic Intensive Japanese

September 2006 – June 2009

Computer Science Ph.D. School, University of Debrecen, Hungary: Discrete mathematics, Image processing and Computer Geometry. In 2009, after declining several offers he finally decided to depart from the program without graduation in favor of for profit software development.

September 2001 - June 2006

University of Debrecen, Hungary: Computer Science MSc Computer Science major and Mathematics Minor, specializing in computer graphics and statistical image processing. He wrote his diploma thesis about the portability of C# applications.


R. Harangozó, P. Veres, A. Hajdu: Subsampling strategies to improve learning-based retina vessel segmentation, IEEE 16th International Conference on Image Processing (ICIP2009), 7 - 11 November 2009, Cairo, Egypt, 4 pages.

A. Hajdu, P. Veres, A. Tanács, R. Harangozó: Object subsampling strategies to improve computational performance, IEEE 6th International Symposium on Image and Signal Processing and Analysis (ISPA2009), 16 - 19 September 2009, Salzburg, Austria, 448 - 453.

András Hajdu, János Kormos, Attila Lukács, Árpád Pányik, Csilla Szabó, Péter Veres and Zoltán Zörgő: Multipurpose 3D modeling for virtual clinical interventions, 2nd International Conference on Computational Intelligence in Medicine and Healthcare (CIMED2005), 2005, Lisbon, Portugal.


October 2009 – September 2010

One year of Academic Intensive Japanese, The Yamasa Institute, Japan

September 2006 – June 2009

Three years of Ph.D. Scholarship, University of Debrecen, Hungary

July 2005 – September 2006

Hungarian State Scholarship for the academic year, University of Debrecen, Hungary