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Renato Araujo, DevOps Developer in Serra - ES, Brazil
Renato Araujo

DevOps Developer in Serra - ES, Brazil

Member since December 15, 2015
Renato is a Linux and network system administrator with 20+ years of experience designing, deploying, and automating systems. He is comfortable working with organizations of all sizes - from small organizations to large enterprises.
Renato is now available for hire


  • VALE
    Linux, Ansible, Python, Perl, Cisco, CA Spectrum, Elastic Stack, Azure, AWS
    Linux, Nagios, Cisco, Riverbed, VMware ESXi, Perl, Lotus Domino, IronPort
    Linux, Postfix, IMAP, POP3, SQL Server, MySQL, Radius


  • Linux, 20 years
  • Perl, 10 years
  • Python, 4 years
  • Ansible, 2 years
  • Docker, 2 years
  • DevOps, 2 years
  • Elasticsearch, 2 years
  • Terraform, 1 year
Serra - ES, Brazil



Preferred Environment

Linux, Git, VSCode

The most amazing...

...project I've completed was to design and implement a monitoring infrastructure for thousands of network devices that is fully automated.


  • System Engineer

    2012 - PRESENT
    • Designed, deployed, and supported network monitoring toolset infrastructure for a large enterprise environment.
    • Automated the migration of thousands of network devices management configuration from MSP to in-house management using Python and Perl scripts.
    • Implemented the Elastic stack to handle network logging management for thousands of network devices for Syslog, TACACS, and Radius accounting.
    • Automated the deployment of technical network standards (Security, QoS, AAA, etc.) using Python scripts.
    • Implemented AWX (Red Hat Ansible Tower upstream) and developed the playbooks to manage the network management Infrastructure.
    • Integrated the Fault Management tool with the ITSM solution using the products API to open, close, update and route incidents to the correct groups based on complex business rules.
    • Developed a custom NagVis backend in PHP to query the proprietary performance management tool.
    • Authored the CA Spectrum Ansible module.
    Technologies: Linux, Ansible, Python, Perl, Cisco, CA Spectrum, Elastic Stack, Azure, AWS
  • System Engineer

    2003 - 2012
    • Designed, implemented, and managed the IT infrastructure monitoring solution based on Nagios, Cacti, and NagVis.
    • Migrated Lotus Domino Email solution from Windows to Linux.
    • Implemented VOIP Solution based on Asterisk allowing ESCELSA to meet regulatory agency ANEEL requirement of having all customer service agencies interconnected with local extensions numbers by the specified deadline.
    • Deployed and Managed IronPort, NetCache, Cisco ASA and Riverbed appliances.
    • Implemented a MODBUS gateway in Perl allowing the connection of remote PLCs to the company SCADA system.
    • Managed the VMWare ESXi Farm.
    Technologies: Linux, Nagios, Cisco, Riverbed, VMware ESXi, Perl, Lotus Domino, IronPort
  • Sysadmin/Webmaster

    1996 - 2003
    • Designed, implemented, and managed the network infrastructure of the Internet Service Provider.
    • Deployed and managed the email servers, web servers, and firewalls.
    • Deployed and managed the dial-up infrastructure.
    Technologies: Linux, Postfix, IMAP, POP3, SQL Server, MySQL, Radius


  • VALE (Development)

    Ansible, AWX/Tower, Git, Python, AWX, FCAPS, Cisco, Elasticsearch, CheckMK, NagVis

  • EDP - ESCELSA (Development)

    Python, Perl, ESXi, Asterisk, Nagios, Riverbed, IronPort, Lotus Domino

  • Automatically Update Elastic Stack with Ansible Playbooks (Publication)
    The Elastic Stack is constantly releasing new and amazing features, and often delivers two new releases every month. However, even though the Elastic website maintains clear and detailed documentation, every upgrade involves a series of tedious steps. That is why one engineer decided to automate the whole process. In this article, Toptal Freelance Linux Developer Renato Araujo walks us through a series of Ansible Playbooks he developed to auto-upgrade his Elastic Stack installation.


  • Languages

    Python, JavaScript, Perl, PHP
  • Tools

    Nagios, Kibana, Logstash, Rsyslog, Ansible, Ansible Tower, Terraform, Jenkins, GitLab CI/CD, Check_MK, Travis CI
  • Paradigms

    DevOps, REST
  • Platforms

    Docker, Linux, AWS Elastic Beanstalk
  • Storage

    Elasticsearch, Redis, MongoDB, PostgreSQL, MySQL
  • Other

    AWS DevOps, VMware ESXi, SOAP, Riverbed
  • Frameworks

    Angular, Django
  • Libraries/APIs



  • Bachelor’s degree in Information Systems
    2004 - 2008
    UCL – Faculdade do Centro Leste - Serra, ES -Brazil
  • ITIL Foundation V3
  • RHCE – Red Hat Certified Enginee
    JANUARY 2007 - JANUARY 2010
    Red Hat
  • CCNA - CISCO Certified Network Associate
    JANUARY 2006 - JANUARY 2009
  • LPIC-2 Certified Linux Engineer
    JANUARY 2006 - JANUARY 2011
    Linux Professional Institute
  • MCSE +Security – Microsoft Windows Server 2003
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