Freelancer profile translated to English.
Back to original languageAbout 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
- CubatelHead of Networks and IT Services TeamDecember 2022 - July 2023 (7 months)Havana, CubaConfiguration 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.ACorporate Node AdministratorMarch 2013 - November 2022 (9 years and 8 months)Havana, CubaResponsible 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).
- TranSoftCOMPUTER SCIENCE SPECIALISTOctober 2009 - March 2013 (3 years and 5 months)Havana, CubaLeading 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.
Recommendations
Be the first to recommend Raynier
Help this freelancer shine by sharing your experience working together.
These freelancer profiles also match your criteria
Agatha Frydrych
Backend Java Software Engineer
4.7
(3)
2
Baptiste Duhen
Fullstack developer
4.6
(4)
5
Amed Hamou
Senior Lead Developer
4
(2)
7
Audrey Champion
Web developer
4.3
(3)
4
Education
- Degree in Education, Specialization in Computer MathematicsISPEJV2004Licenciatura en Educación, Especialidad de Matemática Computación
- CONFERENCE: ENTERPRISE APN CONFIGURATION, PFSENSE AS PROXY AND GATEWAY, Telecommunications ManagementDESOFT, HABANA2019CONFERENCIA: CONFIGURACION APN EMPRESARIAL, PFSENSE COMO PROXY Y GATEWAY, Gestión de las telecomunicaciones