Team Profile

Our dedicated team have the knowledge, experience and committment to provide the best possible solutions for our clients.

Matías Rosales, Chief Executive Officer

Matías Rosales has held the position of CEO of JLT Re Argentina since the company launched its operation in Argentina, in March 2014. With over 15 years´experience in the Argentinian reinsurance market, he previously worked as General Manager at Cooper Gay Argentina for 8 years, and prior to this was Head of Treaty reinsurance at Benfield Argentina. He graduated from the University of Buenos Aires as a Public Accountant.

Miguel Uccello, Finance Director

Miguel is Finance Director for JLT Re Argentina, having joined when the company launched in 2014. He previously held the role of CFO at Cooper Gay for 6 years, for the Argentinian operation and later was also made responsible for the Chilean operation. Prior to this he was Head of Current Accounts at Aon Benfield Argentina, having begun his career in Finance at PriceWaterhouse Coopers in 1998. He graduated from the University of Buenos Aires as a National Public Accountant.

Alejandro Kato, Facultative Director

Alejandro Kato is Facultative Director of JLT Re Argentina. With more than 20 years experience in the Argentinian market, he formerly held the role of Global Risks Senior Manager at Aon Benfield Argentina, where he worked for 12 years. Prior to this, he worked as a corporate risks broker for Willis Re, having begun his reinsurance broking career at Walbaum Americana. He began his career in insurance in 1995, working for Omega Seguros S.A.

Javier Sabaris Javier Sabaris, Commercial Director

Javier Sabaris joined JLT Re Argentina in April 2016 as Facultative Commercial Director.  He has 13 years´experience in reinsurance broking, having worked both locally and across the region.  Javier held the role of Commercial Director of Cooper Gay Argentina for five years, where he implemented the Facultative structure within the company.  He also worked for many years in the markets of Chile, Uruguay, Peru, Paraguay and Mexico. 

Florencia GaciasFlorencia Gacias, Treaty Manager

Florencia Gacias joined the company as Treaty Manager in March 2016.  With over 15 years´ experience in the local and international market, she held the role of Reinsurance Director at Cooper Gay Argentina for five years, and prior to this was Senior Pricing Actuary at Scor Global P&C, where she worked for 9 years - first in the Buenos Aires office (Converium), later in Zurich where she assumed responsabilitites for Southern and Eastern Europe, and finally in Miami (Latin American & Caribbean).  She began her reinsurance career in 2001 in Gen Re, after graduating as an Actuary from the University of Buenos Aires.

Luciano de Oliveira, Senior Broker - Agriculture Specialist, Treaty

Luciano de Oliveira has worked as a Senior Broker in the Treaty Department since April 2015. With more than 5 years´experience working in the local insurance and reinsurance market, he began his career in RSA as a Treaty and Claims Analyst for the local reinsurer, moving on to become Pricing Analyst for the insurance company. He was then appointed as Senior Broker in Willis Re, managing placement of Treaty and Facultative agricultural and forestry risks. 

Sabrina Maestra, Senior Account Manager, Facultative

With over 15 years´experience in the reinsurance market, Sabrina Maestra is responsible for the placement and administration of facultative accounts, as well as coordination of regional programmes with JLT offices through the region of Latin America. She started her career as a Junior Broker for AMR Corredores de Reaseguros S.A., a local reinsurance broker with a strong specialization in Energy and Oil & Gas.

Clara Schweizer, Senior Account Manager, Facultative

With 10 years´experience in the local reinsurance sector, Clara Schweizer has responsibility for placement and administration of all types of facultative accounts. Her previous experience was gained in the position of facultative broker for local reinsurance broker AMR Corredores de Reaseguros, where she focused on areas including Civil Liability, Transport, Terrorims, K&R and Works of Art, among others.

Valentino Donizetti Valentino Donizetti, Senior Broker, Facultative

Valentino Donizetti is a Senior Facultative Broker, with 6 years´experience in the Argentinian market.  He began his career in 2010 in the local reinsurance broker AMR Corredores de Reaseguros, where he managed facultative accounts and after three years, joined Cooper Gay Argentina where he continued to develop in the role of facultative broker.  He joined JLT Re Argentina in April 2016.

Christofer Gross Christofer Gross, Senior Broker, Facultative

Christofer Gross is a Senior Facultative Broker, with over 7 years´experience in the local market, having begun his career in the sector working for the insurance broker Risk Group as a Commercial Assistant and later as an Account Executive.  After three years, he joined the Facultative team of Cooper Gay Argentina, where he worked as a Senior Broker, before joining JLT in April 2016.  He holds a degree in Business Administration from the University Argentina de la Empresa.

Federico Pagniez, Broker, Facultative

With more than 10 years´experience in the Argentinian market, Federico Pagniez began his career in insurance in 2005 at La Holando Sudamericana Seguros, where he worked for four years before moving to the broker, Broker Argentino de Reaseguros. In 2012 he joined the local reinsurance company, Reunión Re Compañía de Seguros.   

Martina Mustafa, Broker, Facultative

Martina Mustafa has worked as a Broker in the Facultative Department since April 2015. She began her career in the reinsurance market at local reinsurance company AMR Corredores de Reaseguros, where her main responsibilities included claims management. Following this, she worked as Marine Underwriter for ACE Seguros before moving to a local retail broker, specializing in the same type of risks.

Martin SchlossbergMartin Schlossberg, Broker, Facultative

Martin joined the facultative team at JLT in April 2016.  He began his career in the sector in 2011, specializing in Workers Risk for an insurance broker.  In 2013, he moved to Cooper Gay Argentina, where for three years he held an administrative and commercial role for the Treaty and Facultative teams.

Bruno Capalbo Bruno Capalbo, Claims and Risk Manager

Bruno Capalbo has held the post of Claims and Risk Manager since April 2016.  With over five years´experience in the Argentinian market, he began his career in insurance as a Property / Engergy loss adjuster for La Meridional Seguros (AIG Argentina), later joining Cooper Gay Argentina with responsability for Facultative Claims.  He graduated with an industrial engineering degree from the Technological Institute of Buenos Aires (ITBA).

 Florencia Vilaseca, Claims Handler

Florencia is a Claims Handler at JLT Re Argentina since April 2016.  She has worked in the sector since joining the company in 2014, developing in the area of Claims in all lines of business.