Andres Montalban, VoIP Developer in Montevideo, Montevideo Department, Uruguay
Andres Montalban

VoIP Developer in Montevideo, Montevideo Department, Uruguay

Member since August 7, 2014
Andres is a senior DevOps engineer with strong background in cloud computing and storage, *Nix operating systems, and networking. He has over a decade of experience working in mission-critical environments handling thousands of interactions per minute.
Andres is now available for hire


  • Perceptyx, Inc.
    Perl, SaltStack, FreeBSD, AWS, Redis, MySQL
  • Global IT Solutions
    Linux, Apache, NGINX, HAProxy, SaltStack, Puppet, VoIP, Asterisk, FreeBSD...
  • inConcert
    VoIP, Asterisk, Linux, Windows, Datacenters, Co-Location, Cloud Computing...



Montevideo, Montevideo Department, Uruguay



Preferred Environment

Linux, Git, SaltStack, HAProxy, Nginx

The most amazing...

...thing I've made is a fully automated code deployment using GitLab and SaltStack that pushes production code to five different data centers, including AWS.


  • DevOps Manager

    2014 - PRESENT
    Perceptyx, Inc.
    • Automated package building and testing for FreeBSD servers, SaltStack configuration testing, creation of development environments and AWS AMI, and the Perl environment build (runtime and modules).
    • Provided disaster recovery and load offloading to AWS.
    Technologies: Perl, SaltStack, FreeBSD, AWS, Redis, MySQL
  • CTO

    2012 - 2018
    Global IT Solutions
    • Provided support to customers using cloud computing technologies.
    • Deployed high availability platforms.
    • Coached new employees and partners in Linux, networking, and virtualization.
    • Supported sales projects generating new services and products based on a mix of technologies.
    • Managed projects and deadlines for a team of local and remote personnel.
    • Created a puppet module for a client to install and configure WildFly (
    Technologies: Linux, Apache, NGINX, HAProxy, SaltStack, Puppet, VoIP, Asterisk, FreeBSD, EC2, AWS, Bash, Virtualization, Cloud Computing, Networking
  • Senior Sysadmin

    2011 - 2013
    • Supervised seven PoP datacenters in the USA and Spain providing mission-critical VoIP services to customers worldwide.
    • Installed, maintained, and supported more than fifty servers with Linux and Windows platforms.
    • Configured and managed Intra Carrier VoIP cross-connections to handle thousands of calls per day.
    • Developed an automated installation script for A2Billing ( that allowed other company coworkers to install the solution for our customers all over the world.
    • Acted as the point of contact to co-location and hosting providers including SoftLayer, NAP of the Americas, PhoenixNAP, and others. Managed purchases, maintenance plans, and internal company support.
    • Helped design and deploy the company‚Äôs private cloud infrastructure.
    Technologies: VoIP, Asterisk, Linux, Windows, Datacenters, Co-Location, Cloud Computing, MS SQL
  • Senior System Administrator

    2010 - 2012
    Ikuna Media S.L.
    • Migrated mission-critical system from a dedicated server to a high-availability Amazon platform in one week to support a high traffic spike during 2010 FIFA World Cup.
    • Created a scalable streaming solution using Amazon Web Services, Adobe Flash Media, Wowza, and Amazon CloudFront giving the company the ability to stream live events like MTV Europe awards to thousand viewers all over the world.
    • Reviewed company web platform performance supporting several thousand of hits per day for customers like EFE News, Telemundo, and Telefonica, resulting in up to a 50% performance increase using the same resources.
    • Created email marketing infrastructure using EC2 and SES to provide services to several customers, ensuring deliverability and inbox reach.
    • Provided support to development teams, giving assistance in new technologies and best practices to achieve high availability and performant services.
    Technologies: AWS, EC2, CDN, Wowza, Adobe Flash Media, MySQL, LAMP
  • Owner

    2009 - 2012
    AM Technology & Systems
    • Worked on sales and technical solutions in order to gain customers and generate new services and products.
    • Provided support for hosting servers with a vast range of technologies, from stripped-down LAMP servers to cPanel and Plesk setups.
    • Supported Cisco networks with customers in the USA and Australia.
    • Supported Windows corporate systems with AD, Exchange, and IIS.
    • Migrated hosting servers between providers with hundreds of sites without downtime.
    Technologies: Linux, Unix, FreeBSD, Windows, Exchange, Asterisk, Zimbra, LAMP
  • CTO and Co-founder

    2006 - 2009
    IT Business
    • Supervised the technology department responsible for customers with over 100 PCs.
    • Migrated several corporate MS Exchange installations from 5.5 to 2003.
    • Deployed VoIP PBXs using Asterisk software.
    • Installed and maintained a metropolitan area network using WiFi links with Ubiquiti, MikroTik, and custom equipment with OpenWRT software.
    • Managed a seven-member technical team to support customers' needs.
    Technologies: Linux, Cisco, FreeBSD, Networking, Telecom, VoIP, Asterisk, Windows
  • NOC Supervisor

    2005 - 2006
    Diveo Uruguay S.A.
    • Supported the company and customer networks that consisted of carrier-class network equipment like Cisco, Harris, and Ericsson Tellabs.
    • Managed servers using Linux, Solaris, and Windows.
    • Upgraded software and hardware for Cisco core routers (7950), including bootloader.
    • Provided support and assistance to customers.
    • Designed new network links and services in coordination with the marketing department to increase sales.
    Technologies: Linux, Cisco, Ericsson Tellabs, Harris, RAD, PDH/SDH, ATM, Frame Relay, Wireless Networks, Solaris, Windows NT/2000



  • Tools

    Ansible, Packer, Vagrant, Jenkins, Terraform, SaltStack, Asterisk, Wowza, Travis CI, Tmux, Vim Text Editor, Git, Gimp, GCC, GDB, Hyper-V, RPM
  • Paradigms

  • Platforms

    Amazon Web Services (AWS), SoftLayer, FreeBSD, Linux, Red Hat Linux, CentOS, Debian Linux, LAMP, Debian, Azure, Rackspace, Windows Server, MacOS, Xen, Solaris, Embedded Linux
  • Other

    VoIP, Big Data
  • Languages

    Bash Script, SQL, PHP
  • Storage

    PostgreSQL, LVM, MySQL Daemon, Cassandra
  • Libraries/APIs


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