| Experience |
| Itaipu Binacional |
Systems Administrator |
| Foz do Iguacu, Parana, Brazil |
April 2006 - Present |
- Administration of 100+ Linux, AIX and Windows 200x servers;
- Management of several services like Samba, OpenLDAP and CUPS for 3000+ users;
- Virtualization using System p and VMware;
- SAN and Storage management;
- Clustering using Heartbeat and DRBD;
- Monitoring of computer and network resources using Tivoli, Nagios and Cacti;
- Servers and workstations security management;
- Automation of common tasks using Bash scripts and Python;
- Participation in 24x7 on-call rotation and tickets management;
- General problem investigation, troubleshooting and performance tuning.
| Prognus Software Livre |
Lead Consultant |
| Foz do Iguacu, Parana, Brazil |
April 2005 - March 2006 |
- Led a team of 15 free software consultants;
- Researched, developed and implemented LDAP trees and integration with Samba;
- Migrated Windows NT servers to Samba and OpenLDAP, preserving the existing relationship of Windows servers and workstations;
- Implemented FTP servers (ProFTPD and vsftpd), Web Servers (Apache), Mail Servers (Postfix), and Database Servers (MySQL and PostgreSQL);
- General free software infrastructure support.
| Parque Tecnologico Itaipu |
Researcher |
| Foz do Iguacu, Parana, Brazil |
April 2004 - March 2005 |
- Implemented the computing infrastructure of the company, creating file servers, authentication servers, mail servers and web servers, all using free and open source software;
- Defined backup and security policies;
- Researched, developed and implemented several servers for thinclients, using mostly the software provided from the LTSP Project;
- Supported specific users problems (level 2 support).
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| Qualifications |
Hardware: Good knowledge of x86 computer architecture, plus some knowledge of IBM POWER / PowerPC computer architecture.
Operating Systems: Extensive knowledge of Linux, good knowledge of Mac OS X, AIX, Windows NT/XP/200x, plus some experience with FreeBSD and OpenBSD.
Networking: Extensive knowledge of the TCP/IP protocol suite (IP, ICMP, TCP, UDP, HTTP, DNS, FTP, SMTP, SNMP, and others) and the ISO/OSI model. Good knowledge of Ethernet specification. Some experience with WLAN technologies.
Programming Languages: Extensive knowledge of scripting languages (bash, awk, sed), and experienced in Python, Perl, C and x86 Assembly.
Virtualization: Good knowledge of System p (IBM), VMware, Xen and KVM/QEMU.
Applications and Services: Advanced knowledge of Web Servers (Apache, IIS, nginx, lighttpd), Samba, OpenLDAP, NFS (v3,v4), DNS/DHCP (ISC), Printing (CUPS, iPrint), SSH (OpenSSH), SMTP (Postfix), Proxy (ISA, Squid), Monitoring (Nagios, Cacti, Mon, Tivoli). Good knowledge of BEA Weblogic, MySQL, PostgreSQL, CVS and Subversion.
Storage Systems: Great experience with RAID, SAN and NAS Systems.
Computer and Network Security: Good knowledge of IDS (Snort, OSSEC), Firewalls (PIX, ASA, Firewall-1, IPtables), Anti-virus solutions (TrendMicro, ClamAV), Content filtering (Websense, Dansguardian), security policies and penetration tests.
Clustering Technologies: Experienced with Heartbeat/Pacemaker, DRBD and Linux Virtual Server.
Systems Administration: General problem analysis and investigation, troubleshooting, capacity planning and performance tuning.
Certifications: CISSP-ISSAP, CISA, LPIC-3, RHCE, CCNA Security, ITIL v3 Foundation.
Languages:
Fluent in Portuguese, English and Spanish.
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