Hands-on leader with a proven
ability to build new IT departments as well organized, productive
business units. Solid knowledge of creating strategies and processes
that improve and maintain a high level of security and enhance service
offerings. Diverse IT experience in big industry, service organizations
and small start-up companies contributes to fast problem resolution
times. Strong management and leadership skills, with the ability to
manage cross-functional, cross cultural teams and to keep high tech
professionals motivated. Excellent communicator, with an emphasis on
building strong relationships with external and internal clients.
Professional Experience
Qualys - July 2002 - present CTO
Redwood City, California
Responsible for the overall technical direction of Qualys services, such
as Vulnerability Management, Policy Compliance, Web Application Scanning, PCI and Agent-based technologies.
Architected the Operation and Security of the QualysGuard service, implemented on
a set of Linux based application and database servers and a large number of
appliances. Built a team of System Administrators, Security
Engineers, Database Administrators and Build Engineers. Improved uptime
from 99.5% to 99.95%. Scaled the service's website through strong
growth periods. Introduced redundant, robust firewalls and load
balancers. Implemented performance and availability monitoring.
Migrated Qualysguard servers into a secure, private suite datacenter.
Implemented strong access control using RSA SecurID and smart cards on all production
servers. Conducted SAS70 Type II audits on Qualys Operations. Designed a
Disaster Recovery plan for the QualysGuard service. Negotiated national and international
datacenter deals.
Bertelsmann - July 2001 - June 2002
Director of Network Operations
Redwood City, California
Responsible for the BeMusic/myplay website and music
streaming services with over 100 Sun servers and 40 Terabytes of EMC
storage. Managed a budget of 4.7 Million dollars. Designed new network
infrastructure. Introduced a launch plan for site changes, a ticketing
system, uptime monitoring/reporting and a documentation system. Managed
projects for stabilization of the Oracle databases, restructured backup
policies and implemented storage monitoring for 40 TB of NFS based
storage. Contact person for due diligence regarding Network Operations
during the Bertelsmann acquisition. Maintained Vendor relations with
Sun, EMC, Cisco, Veritas and AboveNet. Hands-on administration of
internet and corporate computing infrastructure, Microsoft Windows 2000
file servers, Exchange mail server, Checkpoint Firewall, Nortel phone
switch and wireless network.
iSyndicate - January 2000 - July 2001
Manager of System Administration / Sr. Director of Operations
San Francisco, California
Responsible for the implementation of iSyndicateÕs internet services and corporate computing
infrastructure and their continuous operation. Grew server base from 2
to 45 machines, Linux and Solaris. Managed team of
12 professionals. Migrated services from MySQL database to Oracle.
Introduced Weblogic application servers. Implementation of SLAs,
service and response time monitoring, documentation standards and Request tracking
system, using a variety of open-source tools. Implementation of an East coast
warm standby datacenter. Negotiation and implementation of foreign edge
computing datacenters (UK, Germany, Japan). Managed 200+ corporate workstations.
EDS - October 1998 - December 1999
Senior Technical Architect - Unix Engineering
Napa, California
Responsible for the architecture,
design and capacity planning of the Unix servers of a major EDS client.
Designed and implemented the infrastructure for a Scopus/Siebel
application using Oracle databases on a four domain Sun E10000 system and a
three-tier Peoplesoft Financials 7.5 installation on Sun E450s/E5500. Defined
several highly-available infrastructure architectures using Sun Microsystems
Enterprise Servers, E450 to E6500 and Sun Storage A1000-A5000 and using Sun
Cluster software. Lead large scale tuning project with external consultants
from Sun and Oracle.
Hypermedia Technologies Ltda. - 1993 - 1998
Technology Consulting - Senior Partner
Rio de Janeiro, Brazil
Technology consulting in major
Brazilian companies in the media and industry sector. Responsible for
the technical architecture of all projects. Designed and implemented a
software distribution system and a batch controller/output management system in
'C' (Pro-C, OCI) running on heterogeneous Unix platforms for a
major Brazilian company. Designed and implemented several projects
using web-based development tools. Developed
methodology for tuning of Oracle databases on Unix Servers. Implemented
and maintained Oracle Parallel Server (OPS) on IBM AIX/HACMP.
IBM Brazil - 1990 - 1993
General Business Marketing - AIX Specialist
Rio de Janeiro, Brazil
Worked on the introduction of the IBM RS/6000 platform in Brazil. Trained technical staff from
clients and IBM internal. Provided support for migrations from competitors'
platforms to AIX.
Gellrich GmbH - 1989
Health Care Software - Software Engineer
Bochum, Germany
Designed and coded software modules in 'C' for a health-care application.