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Eduardo Roldan, Python Developer in Montevideo, Montevideo Department, Uruguay
Eduardo Roldan

Python Developer in Montevideo, Montevideo Department, Uruguay

Member since August 8, 2014
With more than 18 years of experience in syadmin/DevOps positions, there are few things that Eduardo have not seen or done yet, from compiling patched Linux 1.3 kernels to containerization with Kubernetes, BSD jails, and multi-region cloud infrastructures. In the last few years, he has made automation with Python, Ansible, Saltstack, and Terraform his main strengths. Years in the telecommunications field makes him a networking expert as well.
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, Montevideo Department, Uruguay

Availability

Part-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, and Terremark.

Employment

  • CTO

    2012 - PRESENT
    Freelance
    • 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 a 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.
    • Consulted various local software factories. Set-up in-house and cloud based dev and staging data centers. Used Ansible mostly. Set-up monitoring with Zabbix and a Redmine project management system.
    Technologies: Azure, Amazon, GoGrid, Terremark, RaspberryPi, VMware ESX, VCenter, VCloud, Director, VXLAN, Ansible, Zabbix, Redmine
  • Freelance Certifications Team Member

    2015 - 2016
    Linux Foundation (via Toptal)
    • Wrote tools used for automatic evaluation of exams, using Python.
    • Prepared proofs of concepts for product utilization.
    • Administered evaluations process.
    • Built and deployed Docker images for internal services.
    • Deployed a private Docker registry.
    • Dug into Linux namespaces to execute tricky networking procedures.
    Technologies: Python, AWS, CloudFormation, Consul, Linux namespaces
  • Freelance DevOps Lead

    2015 - 2016
    Tetrascience (via Toptal)
    • Designed the whole infrastructure from scratch, based on AWS.
    • Implemented Jenkins CI/CD.
    • Implemented infrastructure as code with Ansible + Terraform. Interconnected with the same inventory.
    Technologies: AWS, Node.js, Nginx, Grafana, Terraform, PostgreSQL RDS, CloudFront
  • Freelance DevOps Team Member

    2014 - 2015
    Dubber, Inc. (via Toptal)
    • Implemented infrastructure as code with Saltstack.
    • Implemented infrastructure as code for AWS with Python Boto library.
    • Provided AWS administration.
    Technologies: Ruby on Rails, AWS, Boto, Asterisk, Saltstack
  • Freelance DevOps Lead

    2014 - 2015
    Plumlytics (via Toptal)
    • Deployed cloud infrastructure.
    • Implemented Jenkins CI/CD.
    • Implemented chatOps with Slack.
    • Implemented infrastructure as code with Ansible and Terraform.
    Technologies: Ruby on Rails
  • CTO

    2009 - 2012
    La Diaria
    • Managed a four-person IT team for La Diaria newspaper.
    • Deployed an internal call center with ten seats, using Elastix Asterisk distro.
    • Made an ultra thin custom distribution, based on Fedora 12, utilizing Red Hat Kickstart.
    • Set up OpenVPN services to provide mobile desktops.
    • Deployed a 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 asset 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

    2007 - 2009
    Insophia
    • Integrated a team of four SysOps for a 100-person team, distributed around the world.
    • Packaged the applications (around six versioned components) in an RPM format, to deploy to the cluster hosted at Rackspace. Maintained yum repo. Tuned Apache and Lighttpd servers.
    • Performed a web scraping programming job using Scrapy.
    • Maintained Trac applications, Subversion repositories, and developed Trac Plugins.
    • Configured Buildbot to add new applications to CI.
    Technologies: Scrapy Framework, Rackspace
  • SysAdmin

    2004 - 2007
    Dedicado Telecomunicaciones
    • 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

    2002 - 2004
    Multitel
    • Programmed network provisioning systems with PHP and MySQL.
    • Provided Cisco iOS administration, from tiny switches to medium sized routers.
    • Performed RedBack Router configuration to provide PPPoE access to 500 subscribers.
    • Gained experience deploying WAN wireless networks with Alvarion equipment.
    • Maintained a data center (physically and in terms of data logic) with 14 racks for RF and IP networks.
    • Wrote daemons with Python multithreading to coordinate Radius and Routers state, using telnet and 'expect' library. SNMP was not possible.
    Technologies: PHP, LDAP, Cisco IOS
  • SysAdmin

    2000 - 2002
    Intersys
    • Provided Linux i386 and 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, JavaScript, PHP
  • Tools

    Ansible, OpenVPN, VirtualBox, VMware, Vagrant, Nginx, Buildbot, Bamboo, Eclipse IDE, Terraform, Graylog, Packer, Vim Text Editor, SaltStack, Grafana, Jenkins, iptables, Shorewall, RabbitMQ, Autodesk Inventor, Etcd, Augeas, Virtualenv, Bundler, Boto
  • Paradigms

    Continuous Integration (CI), Continuous Delivery (CD), Mechanical Design, Scrum
  • Platforms

    CentOS, AWS EC2, Red Hat Linux, Linux, Docker, Kubernetes, Arduino, Hyperledger Fabric, Hyperledger Burrow, Debian Linux, OpenWRT, Solaris, Raspberry Pi
  • Storage

    PostgreSQL, AWS S3, Elasticsearch, RDS, FibreChannel, MySQL
  • Other

    Prometheus, NFS, 3D Printing, Consul, Elastic Load Balancing, iSCSI, Telemetry, ArduPilot
  • Frameworks

    Linux OpenSuSe, TurboGears, Django
  • Libraries/APIs

    Node.js, libvirt, Kivy
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