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Raynier González ContrerasRG

Raynier González Contreras

IT Consultant, Cybersecurity, IT Network, IT Support

€399/day
Madrid, ES
15+ years

Average response time: 1 hour

Freelancer profile translated to English.
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About Raynier

As a Computer Science Specialist, I have worked in various companies, mainly in Linux and Windows network and server administration, development of IT and network projects, and web and desktop software and application development. I have held responsibilities such as Head of Groups and Work Teams, Course Instructor, Head of IT Security, Head of IT Support, Technical Supervisor for System Development and Implementation, and Corporate Node Administrator, among other positions held during my years of experience.
  • Spanish

    Native or bilingual

  • English

    Conversational

Can work on-site
Madrid (up to 50km)

Experience

  • Cubatel
    Head of Networks and IT Services Team
    December 2022 - July 2023 (7 months)
    Havana, Cuba
    Configuration of GPON technological communication equipment, ONT, OLT, Data Center, and IT Services. Configuration of L2 and L3 switches, Cisco and Huawei Router configuration, Pfsense, Kerio, and Forefront TMG firewalls. VMWARE ESX.x, Vsphere, Linux, Windows servers, Zimbra Collaboration.
  • Almacenes Universales S.A
    Corporate Node Administrator
    March 2013 - November 2022 (9 years and 8 months)
    Havana, Cuba
    Responsible for the Administration and IT Services at a National Level for the Company (Corporate DNS, Corporate MX, Corporate Proxies, Corporate Juniper Gateways and Firewalls, Corporate Web Servers, Virtualization in VMWare ESXi 5.x and 6.x, CISCO and Huawei Routers, DELL BLADE SERVER Technology, Mikrotik WIFI, Storage, ENCLOSURES).
  • TranSoft
    COMPUTER SCIENCE SPECIALIST
    October 2009 - March 2013 (3 years and 5 months)
    Havana, Cuba
    Leading a team of 8 Technical Support colleagues, I held the position of National Development and Implementation Supervisor, responsible for ensuring the development, expansion, and quality of IT Products, as well as Network Installation services, Linux and Windows Server 2003 Configuration, ESX and ESXi Virtualization, Web Server Configuration (IIS, Apache), PHP Development, working with SQL Server 2005, Postgresql, MySQL databases, Technical Support, Web Applications, and OS Installation, providing services to all Transport Bases in the Country.

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Education

  • Degree in Education, Specialization in Computer Mathematics
    ISPEJV
    2004
    Licenciatura en Educación, Especialidad de Matemática Computación
  • CONFERENCE: ENTERPRISE APN CONFIGURATION, PFSENSE AS PROXY AND GATEWAY, Telecommunications Management
    DESOFT, HABANA
    2019
    CONFERENCIA: CONFIGURACION APN EMPRESARIAL, PFSENSE COMO PROXY Y GATEWAY, Gestión de las telecomunicaciones

Skill set (43)

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