Rafael M.

at SERPRO

Average 0 of 5

Hourly rate: USD 20.00

Freelancer activity: IT & Programming

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Brasil

Skills (Maximum: 3)
About me
Goal-oriented and collaborative IT professional with experience applying hardware and network design, installation, administration, and configuration to support growing businesses.
Proven analytic and problem-solving skills with the keen ability to assess needs, define requirements, develop value-added solutions, and execute technical solutions that streamline and improve operating efficiencies.
Adept in communicating with technical and non-technical audiences.
Develop system documentation and create policies to meet the needs of dynamic and continuously changing environments.
A leader in the use of social networking tools for the creation of networks of specialized technical support for services and products, as well as technical and professional development of participants.

Specialties: Apache, Bind, Varnish, Mysql&PostgreSQL, Voip, SIP, IAX, Asterisk, Yate, Linux, FreeBSD, OpenBSD, Solaris, OpenStack, CloudStack, Citrix XenServer, Routing & Switching, RIP, BGP, OSPF.
Certifications (2)
Test Year Score Percentile Status
Linux Test 2013 82% 80% Passed
Apache Server Test (2.0 Family) 2013 72% 71% Passed
Languages
Work history
* SERPRO (Information Technology and Services): Plan and manage the activity of research, support and consulting of 10 specialized teams, with more than 100 employees.  The department specialties are Server and Desktop Linux, Windows, Networking management and monitoring, development tools and infrastructure, virtualization, infrastructure for mobile services, etc.
- lead the Cloud IaaS project with Cloudstack and Openstack technologies.

* SERPRO (Information Technology and Services) [desde 1/2010]: Security analysts plan, co-ordinate and implement security measures to protect computer systems from unauthorized access. This is a critical role, which is responsible for protecting an organisation’s information.

Brazilian President Blog HA Project and Implementation with Apache, Varnish, Foundry and others technologies.

Open source collaborative model implementation for projects development

* Universidade Estadual de Feira de Santana (Higher Education) [desde 8/2007]: - Configured Windows 2003 Servers for Active Directory, DNS, DHCP, Routing and Remote Access and File and Print servers roles.
- Configured Windows 2003 Server for Exchange Mail servers.
- Configured Windows and Linux based operating systems in virtual environments.
- Administered Active Directory setting up new users and maintaining existing ones.
- Assisted network administrator in monitoring network traffic and its usage using SNMP and RMON.
- Configured LAN and WAN switching layer 2 protocols including Frame Relay and ATM.
- Ensured optimal network operation by analyzing and monitoring network activity.

* UNEB (Design) [desde 4/2007]: - Configured Windows 2003 Servers for Active Directory, DNS, DHCP, Routing and Remote Access and File and Print servers roles.
- Configured Windows 2003 Server for Exchange Mail servers.
- Configured Windows and Linux based operating systems in virtual environments.
- Administered Active Directory setting up new users and maintaining existing ones.
- Assisted network administrator in monitoring network traffic and its usage using SNMP and RMON.
- Configured LAN and WAN switching layer 2 protocols including Frame Relay and ATM.
- Ensured optimal network operation by analyzing and monitoring network activity.
- Configured Linux and Unix server in HA configuration to ensure entrance exam result publication.

* OK SCM (Information Technology and Services) [desde 7/2006]: Management and troubleshooting of media servers, media gateways, and IP phones  . Participate in the troubleshooting activities associated with daily operation works. Implement and support new and existing activities


Remote Site Telephony Configuration, Device Pool Configuration, DHCP Server Configuration, LDAP System Configuration, Call Routing Configuration, Access List Configuration, Media Resource Configuration, Music On Hold Audio Source Configuration, Music On Hold Server Configuration, Device Configuration, Gateway Configuration, Trunk Configuration;

- Configuration of Cisco Routers - Platform: 2800, 3640, 2600
- Configuration of Cisco Switches - Platform: Cat3550, Cat2950
- Configuration of Routing Protocols  OSPF, RIP, BGP
- Deployment of  IP Phones
- Installation, Management and Monitoring of SIP Server cluster
- Configuring class of service and Call admission control
- Configuration of call signaling protocols on Voice Gateways H.323  and SIP- Configuration of Voice Gateways, Gatekeepers, and SRST
- Configuration and Instillation of Voice Interfaces like E1 & T1 Lines (CAS and PRI), BRI,FXS, FXO

* ITS Brasil (Information Technology and Services) [desde 9/2005]: - Designed VLANs and IP addressing scheme for the topology
- Created Network configurations templates for Access and Core layer switches.
- Carried out physical installation of equipment in Telco racks and cabinets.
- Implemented structured cabling for the campus.
- Designed physical footprint of the equipment in compliance with power and cooling standards of the data center.
- Performed network optimization tasks including configuration of optimum routes and spanning-tree (STP) topology with VLAN based load balancing.
- Interfaced with the vendors to obtain required updates, performed routine health checks, Firmware and IOS upgrades on the equipment.
- Configuration of Routing Protocols: OSPF - IS-IS, EIGRP and BGP for multihomed internet connection.
- Worked on the implementation of Disaster Recovery and High Availability initiatives.
- Provide internet access to +200k users over MAN using 802.11b, fiber, Motorola Canopy ans others technologies.
- Implementation of a complete hosting solution with Linux, Apache, Ldap, Postfix, Perl, Cyrus Imap and others technologies.

* Cable Bahia (Information Technology and Services) [desde 4/2003]: - Monitors RF signal.
- Maintaining forward/reverse combiner/ CATV/ Internet.
- Developed a subscriber analysis tool for fraud prevention.
- Install, configure, and support the LANs WANs and Internet systems.
- Maintain network and server hardware and software.
- Monitor network to ensure network availability to all system users and perform necessary maintenance to support network availability.
- Installed and Configured Cisco Ubr 7100 CMTS, 2600 Routers.
- Designed VLANs and IP addressing scheme for the topology
- Created Network configurations templates for Access and Core layer switches.
Performed network optimization tasks including configuration of optimum routes and spanning-tree (STP)
topology with VLAN based load balancing.
- Interfaced with the vendors to obtain required updates, performed routine health checks, Firmware and IOS
upgrades on the equipment.
- Configuration of Routing Protocols: OSPF - IS-IS, EIGRP and BGP for multihomed internet connection.
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Activity and ratings

Last login: 3 years ago

Joined: 3 years ago

Certifications: (2)


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Profile level: Iron

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