Eduardo Roldan

Eduardo Roldan

Montevideo, Uruguay
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Eduardo Roldan

Eduardo Roldan

Montevideo, Uruguay
Member since August 8, 2014
Currently working as DevOps and consultant on various software projects, Eduardo has a technical profile made up of a balanced mixture of UNIX administration, Networking and Data processing. He developed high-level applications that bring together these areas, and fundamental internet technologies.
Eduardo is now available for hire
Portfolio
Experience
  • Linux, 15 years
  • Red Hat Linux, 14 years
  • Python, 14 years
  • PostgreSQL, 8 years
  • VMware, 6 years
  • PHP, 5 years
  • OpenVPN, 5 years
  • Ansible, 2 years
Montevideo, Uruguay
Availability
Full-time
Preferred Environment
RHEL, CentOS, AWS, VMware, Python, vim, Eclipse
The most amazing...
...thing I've set up is a VPN that spans Amazon, Azure, GoGrid, Terremark
Employment
  • CTO
    Freelancer
    2012 - PRESENT
    • Made an overlay VPN network which spans Azure, Amazon, GoGrid and Terremark cloud providers.
    • Set-up IPSEC VPNs for diverse customers.
    • Designed a Digital Signage system, based on RaspberryPi.
    • Worked as consultant for Marketing Agencies. Provided automation and technological ideas for marketing actions.
    • Partnered with the country's biggest VMware solutions provider to consult when Linux issues. Learned a lot of VMware ESX, VCenter, VCloud, Director, VXLAN.
    • Consulted various local software factories. Set-up in-house and cloud based dev & staging data centers. Used Ansible mostly. Set-up monitoring with Zabbix, and a Redmine project management system.
  • CTO
    La Diaria
    2009 - 2012
    • Managed a 4 people IT team for La Diaria newspaper.
    • Deployed an internal call center with 10 seats, using Elastix Asterisk distro.
    • Made an ultra thing custom distribution, based on Fedora 12, utilizing RedHat Kickstart.
    • Set-up OpenVPN services to provide mobile desktops.
    • Deployed complex firewall using the Shorewall framework.
    • Resolved very urgent newsroom issues, sometimes not very technical, but taking into account human complexities.
    • Set-up ResourceSpace digital assets management to archive and retrieve media, mostly photos. Due to budget limitations, used Linux "MD" software raid PCs as storage servers.
    • Administered the website, a complex Django site, and supervised the programmers. The project was hosted on Linode.
    Technologies: Django, Linode, Newspaper
  • SysAdmin / Developer
    Insophia
    2007 - 2009
    • Integrated a team of 4 SysOps for a 100-people team, distributed around the world.
    • Packaged the applications (around 6 versioned components) in an RPM format, to deploy to the cluster hosted at Rackspace. Maintained yum repo. Tuned Apache and Lighttpd servers.
    • Performed web scraping programming job using Scrapy framework.
    • Maintained Trac applications, Subversion repositories and developed Trac Plugins.
    • Configured Buildbot to add new applications to CI.
    Technologies: Scrapy Framework, Rackspace
  • SysAdmin
    Dedicado Telecomunicaciones
    2004 - 2007
    • Configured Nagios monitor for the core services.
    • Configured Cacti Graphing to gather core services information.
    • Made SNMP and XML tools to diagnose deployed network equipment from far away.
    • Made a control panel to manage our hosting services. Performed Master to Agent communications via XMLRPC and did the interface with TurboGears framework.
    • Made real-time JavaScript graphs to move diagnostic utilities from Fat Clients to Web. Real-time web graphs were not common at that time.
    • Set-up a clustered mail transport system, composed of SMTP, POP & IMAP front-ends, with an NFS back-end serving around 5000 customers.
    • Helped SAP consultors with the deployment of SAP systems on RHEL3, a failry new option at that time.
    • Jointly configured with IBM consultants a BladeCenter chassis with 14 i386 blades and FASTt 500 Fibre Channel. Tied the system to RHEL3, with multipathing.
    Technologies: Linux, NetBSD, Solaris
  • Sysadmin
    Multitel
    2002 - 2004
    • Programmed network provisioning systems with PHP & MySQL.
    • Cisco iOS administration, from tiny switches to medium sized routers.
    • Performed RedBack Router configuration to provide PPPoE access to 500 subscribers.
    • Gained experience on deploying WAN wireless networks with Alvarion equipment.
    • Phisically and logically maintained a data center with 14 racks for RF and IP networks.
    • Wrote daemons with Python multi threading, to coordinate Radius and Routers state, using telnet and 'expect' library. SNMP was not possible.
    Technologies: PHP, LDAP, Cisco IOS
  • SysAdmin
    Intersys
    2000 - 2002
    • Responsible for Linux i386 & Alpha systems administration.
    • Performed Apache configuration, DNS, bind and Sendmail configuration.
    • Maintained Firewalls (ipfwadm and ipchains) and performed Windows 2000 administration.
    Technologies: Linux i386 & Alpha, Apache
Experience
Skills
  • Languages
    Python, PHP, JavaScript
  • Tools
    Ansible, OpenVPN, Vagrant, VMware, VirtualBox, Jenkins, Shorewall, Augeas, Eclipse, Vim, iptables, Packer, Graylog, Terraform, Boto, Bundler, Virtualenv
  • Platforms
    Red Hat Linux, Linux, Linux–openSuSE, OpenWRT, Debian Linux, Arduino, Raspberry Pi, Solaris
  • Misc
    Google Search Appliance, NFS, 3D Printers, ArduPilot, iSCSI, Telemetry, Elastic Load Balancing
  • Paradigms
    Scrum
  • Storage
    PostgreSQL, MySQL, RDS, Elasticsearch, FibreChannel
  • Frameworks
    Django, TurboGears
  • Libraries/APIs
    Kivy, libvirt
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