David Ramirez

Analyst, Systems Administrator, RHCSA

Profile

Linux - HPC - Systems Administration - Research Support - Virtualization - - Configuration Management - Scripting - Security - Documentation - IT-Infrastructure - Internet - Networking

Certification

Red Hat Certified System Administrator (RHCSA) - 2016

Skills

System Administration

Continuously improve systems performance, security and availability.

Consulting

Architect, deploy & administer hardware and software systems, with an orientation towards HPC and parallel computing environments.

Project Direction

Proven ability to lead and manage a wide variety of systems deployment projects in team and independent situations.

Technical

  • Red Hat / CentOS Linux
  • Cray Linux Environment
  • Rocks Clusters - CUDA
  • VMware, KVM
  • CFEngine
  • Identity Management
  • Shell Scripting
  • LAMP Stack
  • C/C++

Languages

Bilingual English / Spanish

Fluent German

Experience

Parasol Laboratory - Texas A&M University

Systems Administrator & Analyst

2010

Responsible for the management of the Parasol Laboratory research infrastructure. Support for internal and external research collaborators and external dissemination of research products; ensuring quality of service of the computing infrastructure.
System administration for cutting edge high-performance parallel and heterogeneous systems, including a Cray XE6m Supercomputer, Supermicro Superserver and Linux clusters, and their customization for the Parasol Lab's research projects.
Assist in the organization of research meetings, sponsored project review meetings, and site visits that include internal and external participants.
Identity, inventory, change and configuration management; hardware and software integration, web mastering, database server, revision control system administration.

Sungard Higher Education

IT Support Specialist

2009

Internship as MS student.
Data center system deployment, security analyst, virtualization prototyping and testing, second level help desk.

Prairie View A&M University

Research Assistant

2008-2009

Diverse professorship and administrative support, ABET documentation, LAMP software development, and research activities (as MS student).

Web Studio e-Solutions

Information Technology Manager

2005-2006

Led and managed software development team for company growth initiatives. Supervised the CRM and CMS solutions and infrastructure issues, portals, e-commerce, messaging, and custom development. Red Hat Enterprise Linux and MySQL Integrator. LAMP application hosting (SaaS) and e-mail solutions.

I.B.C. Zortek Systems

Project Manager

2005

Responsible for critical network relocation including data center, analog voice, VoIP, and internet services at Tocumen Airport in Panama. Coordinated work schedule through airport officials and multiple vendors for timely service continuity. Completed airport's infrastructure assessment.

Orion Conectividad de Colombia Ltd.

Technical Project Manager

2004-2005

Deployed first Colombia's countrywide successful large scale Sun desktop environment. Developed migration path from Windows XP platform to Sun Solaris / Java Desktop System supplied by Orion as partner of Sun Microsystems. Resolved compatibility issues. Supervised development, training of system administrators and commissioning teams.

Industrial Taylor Ltd.

Director of Information Technology

1993-2004

Developed the company's Information Office as a critical business support unit, in permanent collaboration with the CEO and department leaders. Architected the company’s computing and networking infrastructure, including early adoption of Internet technologies and web presence. Performed system administration, software development and deployment, and responded for all data processing needs utilizing UNIX, LINUX and Windows based servers.

Siemens S.A. (Colombia)

Electronics Laboratory Manager

1989-1993

Team leader in charge of electronics servicing laboratory for nation-wide telecommunications infrastructure. Hardware and firmware upgrades, and quality assurance. Designed database applications and format converters to manage the operations and exchange information with the main office in Germany. Participated in field operations in Venezuela.

Education

Prairie View A&M University - Prairie View, Texas

M.Sc. Computer Information Systems

University of Los Andes - Bogota, Colombia

B.S. Electrical Engineering

University of Saarland - Saarbrucken, Germany

Graduate Practice - Information Technology

University of Southern California - Los Angeles, California

Workshop on Computational Science - 2009

Affiliations

Prairie View A&M University

Computer Science Department

Industry Advisory Council Committee - Member since 2012.

David Ramirez — — (979) 450-2841