Profileimage by Cicero Ronaldo DevOps / SysAdmin from Braslia

Cicero Ronaldo


Last update: 13.10.2016

DevOps / SysAdmin

Graduation: not provided
Hourly-/Daily rates: show
Languages: English (Limited professional) | Portuguese (Native or Bilingual)


Experience in corporate and government networks, working in midsize businesses and focus on the telecommunications market. Leadership skills, negotiation skills and strategic vision. Specialization on Linux Red Hat Enterprise / CentOS, Debian, Suse Enterprise Linux, FreeBSD, experience in management environments such as AIX, Solaris, Red Hat Enterprise Server, Windows 2000 Server, Windows 2003 Server. Good experience in high availability environments, using server virtualization platforms such as VMware and Xen. Knowledge in administration of management tools such as Control-M Enterprise Manager, Zabbix, Nagios, Hyperic, MRTG, etc..

Specialties: Experience in Windows 2000, Linux, UNIX, networking, monitoring systems and servers in a production environment, implementation and verification routines, update to the database, troubleshooting interfaces across platforms, kernel management, managing log files, creation and implementation of scripts in Shell Script, development of free software solutions etc..

Project history

Senior Network Administrator
BrScan Tecnologia
January 2016 – Present (10 months)Brasília Area, Brazil
Designing and planning the network, setting up the network, maintaining the network, administering network security, administering network services, such as DNS, DHCP, LDAP, etc, troubleshooting network problems, setting up a new network and connecting it to the existing network using a machine functioning as a router, etc.

Senior Infrastructure Analyst
November 2013 – June 2015 (1 year 8 months)Brasília Area, Brazil
Managing servers, implement security policies, migration services, performing routine system administration. Troubleshooting installation of Oracle Solaris, managing software packages, administering the boot environment, troubleshooting update issues, administration SMF, troubleshoot service and boot Issues, administration ZFS storage pools, ZFS snapshots and clones, troubleshoot file and storage issues, administration Oracle Solaris Zones, resource utilization, troubleshoot network issues, administration user account and quota, access and authentication issues.

Co-Founder and CIO
September 2011 – November 2012 (1 year 3 months)Brasília Area, Brazil
Plans and coordinates the execution of the expansion and maintenance of IT infrastructure Bambae, implementation of solid solutions, participation in the implementation of the function "black role", cooperation in various aspects of business, etc.
Security Analyst
November 2010 – September 2011 (11 months)Brasília Area, Brazil
Implementation of security controls in assets, case studies and safety audit in mission-critical environments. Application of safety standards 27001, 27002, 27005. Performing "PenTents," suggesting improvements in various procedures aimed at information security. Participation in the preparation of the Master Plan for Information Security.

Security Analyst - Project Bank of Brazil
ISH Tecnologia
August 2010 – November 2010 (4 months)Brasília Area, Brazil
Use the tool Symantec Security Information Manager for event correlation, auditing, security, development of routines for implementing the application. Implementation of centralized logging application, routine management of information security.

Network Administrator
Faculdade Projeção
August 2009 – August 2010 (1 year 1 month)Brasília Area, Brazil
Managing servers, implement security policies, migration services, performing routine system administration. Expertise in traffic control, security, maintenance, LAN and WAN switching, networks. Domain Administration Microsoft (Windows Server 2003), ISA, Exchange, etc..

Security Analyst - Project BrasilTelecom
True Access Consulting
February 2008 – May 2009 (1 year 4 months)Brasília Area, Brazil
Penetration tests run on internal systems, security auditing, development of routines Hardening servers, schema design and maintenance of network security, including security equipment (physical access), data (non-access allowed) and client operating systems and servers. Constant monitoring of new aspects related to security (new hacking techniques, new security bugs found in products on the network, etc.)
Coordinator Infrastructure Network
Escola Nacional de Administração Pública ENAP
September 2006 – January 2008 (1 year 5 months)Brasília Area, Brazil
Server monitoring, development of safety practices, documentation creation and development of structured cabling projects, implementation of high availability services, clustering, virtualization. Configuration and deployment of servers in SAN solution etc.. Hardware experience in xSeries servers family and IBM Storage.
Systems Analyst
Ministério do Planejamento
January 2005 – September 2006 (1 year 9 months)Brasília Area, Brazil
Migration and implementation of open source in the Ministry of Planning, such as: BrOffice, Gaim, Gimp, etc.. Administration and implementation of servers such as Apache, Jabber, LDAP, Samba, FTP, Linux Terminal Server, FTP, VPN, Asterix etc. Installing and configuring IBM series: System x3755, System x3650, Dell PowerEdge 1850, PowerEdge 2800 DELL. Participation in the renovation of servers.
Production Analyst - Project BrasilTelecom
February 2003 – December 2004 (1 year 11 months)Brasília Area, Brazil
Creation and development of routines in Control-M/Desktop, planning and design analysis of sales, development in Unix shell scripts to automate processes, implementation of routines in SyncSort, team membership of AD-HOC-oriented development on case studies.
Systems Analyst
Court of the Federal District - (Tribunal de Contas do Distrito Federal)
April 2001 – December 2002 (1 year 9 months)Brasília Area, Brazil
Participate in the migration project and implementation of Free Software in the Court of Auditors - DF, acting in the projects of cabling and network integration, user support. Implementation of the office suite. Creating and managing users and groups, managing user accounts, configuration, loading and unloading of modules, the configuration process and compilation of kernel modules PAM configuration, the X server configuration, setup and management etc init.

Network Analyst
June 2000 – March 2001 (10 months)Brasília Area, Brazil
Implementation of data networks for clients. Expertise in traffic control, security, maintenance, LAN and WAN switching, networking, broadband setup (ADSL), configuring reverse domain, configuration of DNS servers, configuring services such as Apache, ProFTP, NFS, Samba, Squid, etc. .

Local Availability

Only available for the countries Brazil
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