Professional background
- Since May 2007, Bull Uruguay S.A., Av. Luis A. de Herrera 2802, phone [login to view URL], Montevideo.
Responsible of technical assistance for UNIX based Storage Systems, giving technical support for:
• Sun E6900 administration, 4 domains with Solaris 10 , Sun Cluster 3.2 (geographical distributed) and StorageTek 6540.
• HACMP 5.5 cluster administration with AIX 5 OS.
• RedHat Enterprise Linux 4 and 5 administration on Intel and Power5 architectures. Heartbeat Cluster.
• Administration of Linux CentOS Beowulf Cluster up to 80 computing nodes.
• Storage Area Network administration for EMC Clariion and FDA 1500.
- January 2001 – June 2007, Administracion Nacional de Comunicaciones (ANTEL), Colonia 1932 / Piso 1 - Tel.: [login to view URL], Montevideo, Division Teleinformatica, Network & Communications Unit, as subcontractor.
Senior UNIX Administration, Senior J2EE Administrator, Senior Virtual Infrastructure Administrator, and Communications Technician, including:
Unix management
• UNIX administration (Installation, TCP/IP and X25 configuring, user and group accounts services, security, software installation, patch and fixing, network maintenance and end-users support):
• More than [50] Unix/Linux servers: AIX 4.3 and 5.x OS on pSeries and RS6000 architectures [15], SuSE Linux Enterprise Server 8, 9 and 10 on x86 [20] and x86_64[5], RedHat Linux Server (Advanced Server and Enterprise Server) versions 2.x / 3 on IA 32 bits [10], Sun Solaris 2.5 / 2.8 on SPARC [5], SunOS 4.1.2 -Solaris 1 [1] and HP-UX 10 on RISC HP [1].
• Disks access installation and configuration for Storage Area Network and iSCSI.
• IBM TSM Client (Tivoli Storage Management) installation and configuration for Unix (AIX, Linux, SunOS). Backup and recover scripting.
• IBM’s HACMP (High Available Cluster Multi-Processing) clusters administration on AIX servers, as well as for HeartBeat clusters on RedHat Linux.
• Shells scripts, Perl and C programming for automatization of tasks and monitors UNIX performance, with measurement of web access interface, processor, RAM and swapping usages, networking utilization, system load averages, plus routines to monitoring specific applications such as databases, heap memory of JVM, etc..
• Management of network services, mail servers (sendmail and postfix), DNS (bind), web server (apache 1.3.x / 2.x and IBM HTTP Server) and OpenLDAP.
VMware servers management
• VMware virtual infrastructure 3 comprehending 8 processors ESX servers [2] with AMD 64 bit architecture and a Virtual Center server [1] for remote administration, with high availability functionalities, Motion, Consolidation Backup, etc..
• VMware Server [9], performing on SuSE Enterprise Linux hosts.
• Technical responsible for the project of Virtual Infrastructure 3.
J2EE servers management
• IBM WebSphere Application Servers version 5.1 within development, integration and pre-production environments [5], and exclusively production environments [5]:
• JBoss 3.x servers (some of their applications developed on Genexus versions 7,x / 8), within similar environments [5].
• Shell scripting development for automated updating of J2EE applications,
Communications Technician
• Development of access interface on AIX 4 and 5 with ISODE-FTAM software, which enables file transferring between central telephone offices connected through a X.25 net, based on C with AIX’s API NPI resources.
• Configuration of AAA server with RADIUS (Merit-AAA) protocol, and Network Access Servers and Routers.
• Servicing support for Gateway SMS (kannel) and traffic analysis (TCP/IP) based on Perl language.
- July 2001 - June 2002, Universidad de la Republica O. del Uruguay, Facultad de Ingenieria (School of Engineering, IT Support Division)
Network and systems Administrator, comprising:
• Solaris 7 and 8 system administrator. Administration of NIS users service, net and software services (CVS, rsync, ssh and others), evaluation and installation of energy uninterrupted systems (UPS Powerware), control software installation and UPS (LanSafe III) service support.
• VLANs configuring on Nortel switches (Passport 1200 and BayStack 450) for the School of Engineering’s intranet (TCP/IP).
- November 1997- February 2001, Ideasoft S.R.L. (software and applications development provider), 21 de Setiembre 2570, phone [login to view URL], Montevideo.
Senior Analyst and Programmer for applications on C, C++ and Java, Unix, and NT 4 network support and management.
Software applications
Full development (analysis, design, programming and service) on C and C++ for UNIX platforms (Linux, Sun Solaris, HP-UX, UnixWare and SCO), mainly oriented to business and commercial management applications (Invoicing, Sales statistics, WorkFlow and Budgeting).
Full client support (OS, databases and applications deliver plus configuration of users, terminals, printers and workstations).
Unix administration
Dedicated Linux server management for the company’s Internet access.
Internal and external support management for mail services (Sendmail, IMAP, POP), Proxy http (Squid), Web service (Apache), NIS, DNS, Backup service, NFS, Firewall (Linux, Ipchains), and Samba Service.
Management of UNIX server systems (Linux, Sun Solaris 2.7 and 2.8, HP-UX 10, UnixWare and SCO), as well as Windows (NT and 2000 AS).
Teaching and Research
- Since August 1998, Assistant Professor at Instituto de Computacion, Facultad de Ingenieria, Universidad de la Republica O. del Uruguay
Teaching
• “High Performance Computing”, at graduate level ([login to view URL]).
• “Operating Systems Workshop”, focused on Linux with Intel architecture. ([login to view URL]).
• “Introduction to Operating Systems”, ([login to view URL]).
• “Programming – Level I” and “Programming – Level II” (in charge of practice and lab classes, tests and exams).
Research projects
• Team member of CeCal group in the area of ‘Workspace and Research for Parallel Processing and its Applications’ ([login to view URL]).
• Currently, working on master thesis on parallelism applied to BioComputing.
• As member of the Computers Architecture Department, have direct involvement on different projects addressed to the develop of operating systems.
• Graduation project: “Programacion paralela sobre arquitecturas de memoria compartida y su aplicacion a la resolucion del problema de Steiner en grafos” (Parallel programming on shared memory architectures and its application to solve Steiner’s problem in graphs), which is strongly related with Applied Parallelism, Operating Research and Operating Systems, and was carried out on a multiprocessor Sun SPARCcenter 2000E integrated to a RISC/SPARC 32 bits architecture.
• Published “Algoritmo multithreading para el problema de Steiner en grafos” (Multi threading algorithm for Steiner’s problem in graphs), Msc. Ing. Sergio Nesmachnow, Ing. Gerardo Ares, Maeb’05 ([login to view URL]).
• Administration of a Linux Beowulf Cluster assigned to the working group of research.
• Member of a research team for the implementation of a generic engine applied to genetics algorithms.
• Joint project ANTEL - Facultad de Ingenieria, to develop a CSIRT at national level.
