Gerardo Antonio Brenes Trejos
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Gerardo Antonio Brenes Trejos Email & Phone Number

CEO GBSYS, S.A. at GBSYS, S.A.
Location: Costa Rica 48 work roles 5 schools
1 work email found @gbsys.com 1 phone found area 062 LinkedIn matched
✓ Verified Jul 2026 4 data sources Profile completeness 100%

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Work email g****@gbsys.com
Direct phone (062) ***-****
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Current company
Role
CEO GBSYS, S.A.
Location
Costa Rica
Company size

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Gerardo Antonio Brenes Trejos is listed as CEO GBSYS, S.A. at GBSYS, S.A., a with 109 employees, based in Costa Rica. AeroLeads shows a work email signal at gbsys.com, phone signal with area code 062, and a matched LinkedIn profile for Gerardo Antonio Brenes Trejos.

Gerardo Antonio Brenes Trejos previously worked as CEO at Gbsys, S.A. and Costa Rica Information Technology Trade Mission at Gbsys, S.A.. Gerardo Antonio Brenes Trejos holds Doctor Of Philosophy - Phd, Business Administration And Management, General from Tecnológico De Costa Rica.

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Email format at GBSYS, S.A.

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*@gbsys.com
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Profile bio

About Gerardo Antonio Brenes Trejos

Computer Engineer graduated from the Technological Institute of Costa Rica (1982), Master in Computer and Information Sciences from the Georgia Institute of Technology (Georgia Tech) with a specialty in Databases (1987). He founded GBSYS S.A. Costa Rican IT Infrastructure Management and Software Development company on July 16, 1987, where he is currently the CEO (www.gbsys.com). Since then he has dedicated himself to consulting in Information Technology. He has been a professor at different universities in the country, especially at the Technological Institute of Costa Rica where he is also a student in the Doctorate in Business Administration. He is interested in the topics of Big-Data, Artificial Intelligence, Mobile Developments, Cloud Computing, Agromatics, Innovation, Software Quality, Secure Software and Talent Retention. In his free time he enjoys the beach, the mountains, traveling, biking, eating, reading, karaoke and above all spending time with family and friends.

Listed skills include Databases, Software Development, Oracle, Data Warehousing, and 26 others.

Current workplace

Gerardo Antonio Brenes Trejos's current company

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GBSYS, S.A.
Gbsys, S.A.
CEO GBSYS, S.A.
Costa Rica
Website
Employees
109
AeroLeads page
48 roles · 46 years

Gerardo Antonio Brenes Trejos work experience

A career timeline built from the work history available for this profile.

Ceo

Current

San Jose, San Jose, Cr

In charge of companies overall strategy, employee engagement, alliance and suppliers. First contact with large accounts. Public Relations and alliance manager. International ventures. In the early years of the company worked as ORACLE DBA and Datawarehousing Consultant with different customers, mainly in the Central American Region Banking and Finance arena.

Jul 1987 - Present

Costa Rica Information Technology Trade Mission

San Jose, San Jose, Cr

Public Speaker with the conference "Outsourcing of Information Technology Services of GBSYS"

Oct 2003 - Oct 2003

Technology Trends

San Jose, San Jose, Cr

Guest speaker with the conference "Advance Database and Systems Integration Technologies"

May 2003 - May 2003

3Rd World Summit On Internet And Multimedia

San Jose, San Jose, Cr

Guest speaker with the conference "Training and Retaining IT and Multimedia Talent in the Developing World.

Oct 2002 - Oct 2002

Executive Sales Training

San Jose, San Jose, Cr

BMC Software Preferred Partner Program. Took the full training.

Jul 1999 - Jul 1999

Catch The Edge

San Jose, San Jose, Cr

BMC Software Preferred Partner Program Conference. Participant in the event.

Jan 1999 - Jan 1999

Year 2000 Seminar Banco Hondureño Del Café

San Jose, San Jose, Cr

Guest Speaker with the conference "Impact assestment of the Year 2000 problem".

1998 - 1998

Year 2000 Seminar Cpic

San Jose, San Jose, Cr

Guest Speaker with the conference "Data treatment and databases for the year 2000"

1998 - 1998

Oracle Users Club - 1995

San Jose, San Jose, Cr

Guest Speaker with the conference "Distributed Databases: The Banco Nacional Case"

Aug 1995 - Aug 1995

3Er Regional Congress On Open Systems And Unix

San Jose, San Jose, Cr

Panelist in the forum "Software Selection Criteria for Open Systems"

Sep 1993 - Sep 1993

Oracle Users Club - 1993

San Jose, San Jose, Cr

Guest Speaker with the conference "Open Systems"

Sep 1993 - Sep 1993

Oracle Users Club - 1992

San Jose, San Jose, Cr

Guest speaker with the conference "CONNECT BY from SQL*PLUS, hierarchical relationship management within one single table".

May 1992 - May 1992

Professor

Current

Cartago, Cartago, Cr

Originally in the Computer Science School and lately in the Management School. Taught database related courses, computer graphics theory, operating systems and MIS, IT for Managers, Project Management, Artificial Intelligence, Entrepeneurship and others.

1981 - Present ~45 yrs 6 mos

Panama Technological University - Oficina 91

Cartago, Cartago, Cr

Guest speaker with the conference "Distributed Relational Databases for corporate systems development". Invited by Panama's Technological University and World Trade Center - Panama.

Aug 1991 - Aug 1991

Panama Technological University - Oficina 90

Cartago, Cartago, Cr

Keynote Guest Speaker on the Technological University of Panama 15th Anniversary. Conference "Relational Databases"

Aug 1990 - Aug 1990

Upadi 90 - Pan American Engineers Associations Union

Cartago, Cartago, Cr

Guest speaker at the XXI Convention on Computer Science Masters Programs.

Jul 1990 - Jul 1990

International Congress On Energy, Environment And Technology Innovations

Cartago, Cartago, Cr

Guest speaker on the subject of Information Technology Education.

Oct 1989 - Oct 1989

Copimera 88 - Electrical, Mechanical And Industrial Enginners Association

Cartago, Cartago, Cr

Guest speaker with a conference "Databases"

Nov 1988 - Nov 1988

Upadi 88 - Pan American Engineers Associations Union

Cartago, Cartago, Cr

Invited to speak about Enginnering Creativity for Developement

Oct 1988 - Oct 1988

Systems Analyst

Cartago, Cartago, Cr

- Systems analyst: Advice to department management in defining policies for systems development in a database environment.- Analysis and Programming Unit Coordinator: In charge of five systems analysts and five programmers- Systems Analyst II: Participation in analysis, design, implementation and maintenance of various systems related to the student environment.- Programmer: COBOL programmer for the different ITCR systems

1981 - 1987 ~6 yrs

Senior Information Technology Consultant

Current

San José, San José, Cr

- Planning at the level of the senior administration of Information Systems and support in the management of Project Administration.- Technical support to system developers in the different tools- Database administration in conjunction with Technical Support personnel. Participation in the evaluation and selection of software tools.- Participation in the process of adaptation, start-up, database administration, transfer to branches, training, quality control, integration and other activities, of all systems in an open systems environment, with ORACLE as the database management system.- Support for the institution's priority projects VISA Credit Card System / National Bank and Institutional Credit System (SICRE), as well as Procurement, Financial Accounting, Securities Custody and others, serving as a technical counterpart with other external developers of the Bank.- Coordination of GBSYS officials who participated in the execution of the 2000 Project at VISA Banco Nacional

Jun 1995 - Present

Lead Instructor

San José, San José, Cr

Training bank's technical personnel in ORACLE Technology including workshops about Distributed Databases, Oracle tools for developers, End User Oracle Tools, C and Pro* programming, Structured Programming, Databases, Operating Systems

Jul 1994 - Oct 1997

Certified Partner / Instructor

Current

Austin, Texas, Us

Partner contact between ORACLE and GBSYS in Costa Rica and in different years certified instructor locally and internationally especially in Database Administration and DataWarehousing using ORACLE Technology.

1989 - Present ~37 yrs 6 mos

Professor

Utn - Universidad Técnica Nacional

Teach Database Systems and Entrepeneurship related courses including: Database Applications, Data Mining, Database Optimization and Business Development

Jan 2016 - Mar 2017

Professor Masters Program In Database Systems

Universidad Cenfotec

Professor in the areas of Datawarehousing, Datamining, Database Security and Database Tuning

2010 - Mar 2013

Dean Of Engineering

Cr

Supervise the work of the Department Directors for the programs in Information Technology, Electronics, Industrial Engineering, Ocupational Health and their corresponding extension and continued education programs.

Mar 2011 - Feb 2012

Board Of Directors

Chamber Of Information And Communication Technologies Of Costa Rica (Camtic)
2000 - 2008 ~8 yrs

Data Warehouse Specialist

Super Intendencia De Pensiones (Supen) - Costa Rica

Management leader for the Datawarehousing Project. Methodology definition, design and implementation of DW for accounting analysis.

Feb 2001 - May 2001

Year 2000 Project Manager

Cr

Y2K Project Management. Information Systems Application Inventory and coordination with IICA Staff and GBSYS consultants to update applications in order to ensure their correct functioning in the new millenial. Follow up during the year 2000.

May 1999 - Jan 2001

Year 2000 Project Consultant

Project Advisor Year 2000. Support to the Project Director in the general coordination of the activities to be carried out, including testing methodologies, formation of work teams, coordination with users, diagnostic tools and other activities

Jan 1999 - Feb 2000

Professor And Curricula Advisor

Universidad Católica Monseñor Anselmo Llorente Y La Fuente

Curricula design for the courses on the databases area. Professor for the Database I course.

1998 - 1999 ~1 yr

Professor

San José, Cr

Information Systems Professor for the Master Program in Foreign Trade

1997 - 1998 ~1 yr

It Consultant

Banco Hondureño Del Café (Banhcafe)

Information Technology Consultant. State of the art assesment, evaluate and recommend IT platforms. Development of the IT Plan for a period of 5 years for the Bank in conjunction with the CIO of the bank.

Dec 1996 - Mar 1997

It Consultant

Banco Cooperativo Costarricense (Bancoop)

Evaluation of software alternatives developed for Banking, with the aim of replacing the entire group of existing systems with relational database technology and fourth generation languages. Consulting tasks included:- Basic talks on IT and databases to management level personnel who would evaluate the software that was being offered to them.- Listen to presentations from the different bidders and compare them with respect to the requirements of BANCOOP and the General Superintendency of Financial Entities.- Estimate resource needs and make recommendations on hiring personnel and work teams for the adaptation of the software that was acquired.- Establishment of quality control functions in the software and corresponding documentation- Establishment of database administration functions and related procedures- Establishment of standards in the systems area- Technical support in networks and Oracle databases.

Nov 1995 - Apr 1996

Interamerican University Open House

San José, Cr

Guest speaker on "Information Technology Applications for Modern Management." Club Unión.

Mar 1994 - Mar 1994

It Consultant

Empresa De Servicios Públicos De Heredia (Esph)

Evaluation of ESPH's IT Plan, in conjunction with the C-Level executives. Aspects such as analysis of the current situation, conception of new systems, technological environment, system priorities and technological environment were considered.

Jul 1995 - Dec 1995

Lead Instructor

Sistema Empresarial R.C. S.A.

Relational Databases and SQL Standard, Hotel Corobicí.

Apr 1994 - Apr 1994

Lead Instructor

Sistema Empresarial R.C. S.A.

Introduction to local area networks and Introduction to UNIX. Hotel Ambassador.

Mar 1994 - Mar 1994

It Consultant

Liberia, Guanacaste, Cr

Systems Development , as part of GBSYS team. Worked on sugarcane receipt and payment systems, sugarcane quality laboratory control, sugar inventory, plantation control and independent producers payment system.

1990 - 1992 ~2 yrs

It Consultant

Central American Monetary Council

SIEC Project - United Nations Development Program (UNDP)Establishment of a standardized database for the management of economic information in the countries of Central America and Panama. The tasks, in coordination with the team of economists and statisticians, included: Evaluation, Design, Programming, Documentation, Installation, Training, Coordination with IT personnel of the institutions and other tasks according to the established terms of reference. It included time spent as a consultant at the Central Bank of Guatemala, the Central Bank of Honduras, the Central Reserve Bank of El Salvador, the Central Bank of Nicaragua, the Central Bank of Costa Rica and the Comptroller General of the Republic of Panama.

1989 - 1992 ~3 yrs

Lead Instructor

Fercomputo

Distributed Databases Seminar

Oct 1991 - Oct 1991

Lead Instructor

Fercomputo

Relational Database Systems through SQL

Oct 1990 - Oct 1990

Lead Instructor

Fercomputo

Database Design Seminar

Jul 1990 - Jul 1990

It Consultant

Cr

Development, in conjunction with GBSYS personnel, for sugarcane receipt and payment systems, laboratory control and sugar inventory at the mill.

1987 - 1989 ~2 yrs

Lead Instructor

Fercomputo

"Relational database systems and FRAMEWORK II"

Oct 1988 - Oct 1988
Team & coworkers

Colleagues at GBSYS, S.A.

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5 education records

Gerardo Antonio Brenes Trejos education

Doctor Of Philosophy - Phd, Business Administration And Management, General

Tecnológico De Costa Rica

Pag, Administración

Incae Business School

Master Of Science, Information And Computer Science

Georgia Institute Of Technology, Atlanta, Ga, Usa

Ingeniero, Computación Administrativa

Tecnológico De Costa Rica

Bachelor'S Degree

Liceo Regional De Flores
FAQ

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What company does Gerardo Antonio Brenes Trejos work for?

Gerardo Antonio Brenes Trejos works for GBSYS, S.A..

What is Gerardo Antonio Brenes Trejos's role at GBSYS, S.A.?

Gerardo Antonio Brenes Trejos is listed as CEO GBSYS, S.A. at GBSYS, S.A..

What is Gerardo Antonio Brenes Trejos's email address?

AeroLeads has found 1 work email signal at @gbsys.com for Gerardo Antonio Brenes Trejos at GBSYS, S.A..

What is Gerardo Antonio Brenes Trejos's phone number?

AeroLeads has found 1 phone signal(s) with area code 062 for Gerardo Antonio Brenes Trejos at GBSYS, S.A..

Where is Gerardo Antonio Brenes Trejos based?

Gerardo Antonio Brenes Trejos is based in Costa Rica while working with GBSYS, S.A..

What companies has Gerardo Antonio Brenes Trejos worked for?

Gerardo Antonio Brenes Trejos has worked for Gbsys, S.A., Costa Rica Institute Of Technology, Banco Nacional, Oracle, and Utn - Universidad Técnica Nacional.

Who are Gerardo Antonio Brenes Trejos's colleagues at GBSYS, S.A.?

Gerardo Antonio Brenes Trejos's colleagues at GBSYS, S.A. include Nilson Barboza Araya, Fainner Zuñiga, Josseline Matamoros Cordero, Kevin Rodriguez Oporta, and Jose Venegas.

How can I contact Gerardo Antonio Brenes Trejos?

You can use AeroLeads to view verified contact signals for Gerardo Antonio Brenes Trejos at GBSYS, S.A., including work email, phone, and LinkedIn data when available.

What schools did Gerardo Antonio Brenes Trejos attend?

Gerardo Antonio Brenes Trejos holds Doctor Of Philosophy - Phd, Business Administration And Management, General from Tecnológico De Costa Rica.

What skills is Gerardo Antonio Brenes Trejos known for?

Gerardo Antonio Brenes Trejos is listed with skills including Databases, Software Development, Oracle, Data Warehousing, Business Intelligence, Sql, Team Leadership, and Strategic Planning.

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