Hugo Barrera Nuñez

Operations Engineer at Google Germany From swapping hardware to project management. Projects lead, Area(s) lead , team lead, project planning/management, interviewer (new hires), training/mentoring, SME for different areas, documentation, etc.

Responsible of all Linux Servers (CentOS, Red Hat Enterprise, Debian) running services like HTTP, SAMBA, FTP, rsyslog, XMPP, etc. Applications: EZPublish (installation, backup, migration, upgrading, etc), SVN. Installing and configuring servers, both Hardware and Software. Working with physical and virtual (VMware) environment. Full documentation (English).

System administrator of 3 clusters with 300 nodes and 15 servers running: Servers OS: Linux (Debian, Suse, Red Had, Fedora, Ubuntu, CentOS), Windows 2003 server. Workstations OS: Linux (Ubuntu, Debian, Suse, CentOS) Windows 2000/XP and Mac OS X. NETWORKING: LAN Design for Server Rooms. Install and configure switches. Planning & Design of Clusters, both Hardware & Software. Using TCP/IP and Infiniband Architectures. Cabling the whole Server Room (UTP and Infiniband) Full documentation (english & spani

Installation, configuration and administration of servers (hardware & software). Networking: Re-cabling Data Center ( both Copper and Fiber) Troubleshooting: Networking (like solving 2/3 OSI layer issues) and OS (Linux, Solaris, SGI) Testing: DNS servers (BIND9, Nominum, etc) DHCP server. Hardware: SGI, HP, IBM, DELL, Blade Servers, etc. OS: Unix (SGI; Solaris; Linux/Debian, Red Hat, Suse, etc) Windows (2003, 2000, NT servers). Services: DHCP, DNS (BIND9), FTP, E-Mail).

Installation & Maintenance of E-mail, HTTP, NFS, servers. Maintenance of workstations. OS: Linux (SUSE 10.0, DEBIAN, RED HAT) other UNIX (SGI-Irix) Windows 2000 server and workstations. Services: NFS, FTP, HTTP and MYSQL server, NFS and FTP server and TFTP and PXE server, Hardware: PC servers, Itanium II, AMD64, XEON, etc Hard Discs Recovery data (EXT3 & NTFS).

Migration of Linux (RED HAT) servers and clients (POS)

Worked as technician, repairing and troubleshooting servers and workstations for customers (small to medium size companies), installing VPNs, installing and administering EMAIL servers (Postfix, Courier, EXCHANGE, etc) FTP (ProFTPd), HTTP (Apache, IIS), Proxy (Squid, ISA Proxy server), Active Directory, SQL server, MySQL server. Also installing clusters for Institutions, both Hardware (Racks, UPS, servers, etc.) and Software (OS, PXE server, Grid engine, etc) Troubleshooting: Corrupted EXCHANGE database

Design, building, installation, configuration and maintenance of the small Server Room for both Hardware and Software. Network and system administrator. Users support. Servers: Linux (DEBIAN), Windows 2000 server. Services: AD, FTP, EMAIL, SAMBA, PROXY, FIREWALL (IPTABLES). Workstations: Windows 2000, Mac OS 9.1/10.

At Data Center facilities, I was in charge of installing, configuring and mantaining servers. From Rack & Stack, cabling, switching, etc. to Installing OS (Linux/Debian and Windows 2000 server). Customers support.