My contact persons
in the public sector

If you would like to speak to me about your particular needs, please feel free to get in touch with me.

  • Carlos Frischmuth,
  • Director Public Services
  • Berlin office
  • Region: All of Germany
Carlos Frischmuth
Your contact for Public Sector Businesses
T: +49 30 847884 200 +49 30 847884 200
M: +49 170 9133061 +49 170 9133061
E: carlos.frischmuth@hays.de
Carlos Frischmuth

As a Hays director, I am responsible for the company's Public Sector Services in Germany.

As a Key Account Manager, Team Leader and Department Manager, I were operationally and strategically responsible for customers in the private and public sectors for over ten years. This included local authority data centres as well as agencies of the German Federal, State and local authorities.

During this time I became thoroughly acquainted with a broad range of cost-effective procurement structures, optimising and developing these further in collaboration with his many customers.

I am on the Advisory Board of the Deutsche Vergabe Netzwerk (DVNW - German Procurement Network).


  • Won-Chul Leihener-Lee,
  • Department Manager Public Services
  • Berlin office
  • Region: Germany – East
Won-Chul Leihener-Lee
T: + 49 30 847884 226 + 49 30 847884 226
M: + 49 151 54318444 + 49 151 54318444
E: won-chul.leihener-lee@hays.de
Won-Chul Leihener-Lee

Since the beginning of 2009 I have been working as a Key Account Manager, Team Leader for numerous customers in the public and private sectors at both the strategic and operational levels. Among my customers I include municipal data centres, banks, federal, state and local authorities.

­Hays AG has established a business division dedicated exclusively to fulfilling the needs of public-sector companies. As Germany's leading supplier of expert IT resources and the market's leading knowledge bank, we support a wide range of public-sector customers. In doing this, our focus is on optimisation and further development.
Whether acting at the highest operational levels or in a strategic and advisory capacity, Hays is always a reliable partner when our customers need the right personnel. We provide the most appropriate experts for special projects/areas, for bridging vacancies during staff shortages or during intense periods of project activity.


  • Christian Geiß,
  • Department Manager Contracting
  • Hamburg office
  • Region: Germany - North and West
Christian Geiß
T: + 49 40 300 859 239 + 49 40 300 859 239
M: + 49 160 8833819 + 49 160 8833819
E: christian.geiss@hays.de
Christian Geiß

After completing my degree in Business Studies at the Fontys Hogeschool Venlo, The Netherlands, I began my career with Daimler-Chrysler Sales Organisation Germany (DCVD) in 2001.

At the end of 2003, my career took me to Hays, where until March 2013 I held the positions of Account Manager, Key Account Manager and Team Leader.

In these roles I was responsible for supporting numerous private sector customers in Mannheim, Berlin and Hamburg with their IT and engineering needs. Since April 2013, I have been the head of IT Public Services with regional teams in Hamburg, Hannover, Cologne and Düsseldorf looking after public sector clients in the German Federal States of Schleswig-Holstein, Lower Saxony and North Rhine-Westphalia.


  • Katharina Hafner,
  • Team Leader Contracting
  • Munich office
  • Region: Germany - South
Katharina Hafner
T: +49 89 512 669 310 +49 89 512 669 310
M: +49 151 68826710 +49 151 68826710
E: katharina.hafner@hays.de
Katharina Hafner

After completing my psychology studies, I joined Hays as a Public Services Account Manager in Munich in 2012. 

Since that time, I have been the contact person for representatives of the various state ministries and offices, municipal institutions, church organisations, foundations, associations and many other public sector organisations in southern Germany regarding IT projects/IT contracting/IT freelancers. 

As a team leader, I work closely together with my colleagues, who specialise in recruiting and procurement law, to seek out the most appropriate IT experts for you. We cover areas such as network/infrastructure, development and IT security/IT forensics, but are also equipped to deal with specialist areas of specific importance to public sector authorities.