David Sierra González

Senior DBA at HIBERUS SISTEMAS INFORMATICOS SL
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Contact Information
us****@****om
(386) 825-5501
Location
Greater Almería Metropolitan Area, ES
Languages
  • English Full professional proficiency
  • Spanish Native or bilingual proficiency
Skills

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Bio

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5.0

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Francisco Gallardo

David es un gran profesional con un conocimiento profundo de Oracle y sus herramientas. Tiene mucha iniciativa, lo que le hace un pilar en cualquier equipo que tenga que hacer e idear cosas nuevas o diferentes. Es meticuloso y ordenado aunque cuando la situación lo requiere es capaz de improvisar. Es una gran persona y un gran técnico. Si tiene la oportunidad de contratarle, no lo dude.

Agustin Calvo

David es una garantía de éxito para cualquier equipo de trabajo. Es inteligente, trabajador, comprometido, sabe de lo que habla, explica de manera fácil lo difícil, sabe dirigir un equipo de trabajo, en fin, es un lujo tener a David de jefe, compañero o colaborador.

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Credentials

  • Oracle Database Cloud Administrator Certified Associate
    Oracle
    Jul, 2017
    - Sep, 2024
  • ITIL Foundation
    Tecnofor
    Jan, 2017
    - Sep, 2024
  • Oracle Database 11g Administrator Certified Associate
    Oracle
    May, 2016
    - Sep, 2024

Experience

  • HIBERUS SISTEMAS INFORMATICOS SL
    • Consumer Electronics
    • 1 - 100 Employee
    • Senior DBA
      • Aug 2023 - Present
  • BCC Eurovía Informática, AIE
    • Spain
    • IT Services and IT Consulting
    • 100 - 200 Employee
    • Database System Analyst
      • May 2020 - Aug 2023

      Analyst in projects related with databases (mainly Oracle). Assistance and advice to Database Administration Team. Advice with new architectures and Oracle product and services. Resolution of high complex incidents with databases. Design and implementation of oracle database backup techniques. Basic operation and administration of Teradata, Cloudera and Powercenter (an other Informatics products). Coach and mentoring of the rest of the members of database team. Advise and design of several architectural proyects. Show less

  • Oracle
    • United States
    • Warehousing
    • 1 - 100 Employee
    • Principal Advanced Support Engineer
      • Oct 2001 - May 2020

      Advanced Support Engineer (ASE) -Support Services. Reactive and proactive analysis of customer databases. Design and implementation of Oracle RMAN in Vodafone. Project Manager in End-to-End protect for migration of core databases of Telefonica of Spain. Member of Oracle Security Global Team (colaborations in definition of Spanish templates for DBSAT Discovery with Product Manager, and give security lessons globally inside Oracle). ASE for Andalucía Customes, giving lessons about database migrations, and security products and GDPR. Show less

  • Castro Romero Flamenco
    • Jefe de Producción & Regidor / Head of Production & Stage Manager
      • Nov 2004 - May 2019
  • Rumbo
    • Spain
    • Travel Arrangements
    • 1 - 100 Employee
    • Head of Database Administration
      • Apr 2001 - Oct 2001
  • Amena
    • Telecommunications
    • 1 - 100 Employee
    • Head of Database Engineering
      • Dec 1998 - Apr 2001

Education

  • Escuela Técnica Superior de Ingenieros Informáticos (Universidad Politécnica de Madrid)
    BA+MA, Computer Science
    1990 - 1999

Community

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