Oscar A. Jara, System Administration Developer in Santa Fe, Santa Fe Province, Argentina
Oscar A. Jara

System Administration Developer in Santa Fe, Santa Fe Province, Argentina

Member since April 1, 2013
Oscar is a top information systems engineer who has worked as a developer, system administrator, DevOps engineer, and university professor. He has extensive experience with low-level software development and has worked with client-server, distributed, and fault-tolerant web architectures. He has been working as a DevOps engineer in recent years.
Oscar is now available for hire




Santa Fe, Santa Fe Province, Argentina



Preferred Environment

Amazon Web Services (AWS), AWS, Linux

The most amazing...

...thing I've coded is a libVLC-based app to control via Bluetooth two video outputs: one audio output and a lightboard, concurrently.


  • DevOps

    2017 - PRESENT
    Spinemedia, LLC
    • Maintained AWS infrastructure (EC2. Aurora, ELB, OpsWorks, IAM, ElastiCache).
    • Implemented WordPress provisioning, deployment, and scaling on AWS OpsWorks/Chef.
    • Implemented a Kubernetes environment based on AWS EKS, including CI/CD pipelines using Jenkins.
    Technologies: Amazon EKS, Kubernetes, Chef, AWS OpsWorks, WordPress
  • DevOps

    2015 - PRESENT
    RabbittApp, LLC
    • Designed, implemented, and administrated high-availability, auto-scalable, and secure AWS infrastructure.
    • Implemented secured VPC with VPN access.
    • Implemented load-balanced public (web) and private (app) layers.
    • Implemented auto-scaling groups to support demand variation.
    • Implemented multi-availability zone master/slave MySQL RDS.
    • Improved performance on SQL queries.
    Technologies: Amazon Web Services (AWS), Bash, Ubuntu, Linux, Apache, MySQL, PHP, AWS
  • DevOps

    2018 - 2018
    • Implemented Node.js REST API provisioning, deployment, and scaling using AWS OpsWorks Chef.
    Technologies: Node.js, Chef, AWS OpsWorks
  • DevOps

    2014 - 2017
    • Handled daily Rackspace cloud sysadmin issues (e.g., web server and database migration and replication).
    • Supported to improve application efficiency and response time.
    • Handled MySQL DBA operations.
    Technologies: New Relic, Apache, MySQL, Rackspace, CentOS, Ubuntu, Bash, PHP
  • Advanced Operating Systems Professor

    2009 - 2017
    Universidad Tecnológica Nacional
    • Performed real-time and kernel-level Linux programming.
    • Developed client-server applications based on sockets and RPC technologies.
    • Taught and programmed device drivers.
    Technologies: Bash, Java, C
  • DevOps

    2016 - 2016
    Arduino, LLC
    • Created an integrated interaction among DataDog (monitoring, visualization), AWS Autoscaling, SaltCloud (orchestration), and Drone (continuous delivery).
    Technologies: Amazon Web Services (AWS), Drones, SaltStack, Datadog, Autoscaling, AWS
  • Full-stack Developer

    2015 - 2015
    Evobits IT
    • Created a template system.
    • Made a security audit on a Bitcoin-related site.
    • Implemented an administrators' internal messaging subsystem.
    • Implemented several security measures in a Bitcoin related site (CSRF, XSS, SQL injection, etc).
    • Developed a DDoS prevention subsystem based on Redis.
    Technologies: jQuery, JavaScript, CSS, HTML, MySQL, PHP
  • Developer, System Administrator

    2010 - 2014
    Universidad Tecnológica Nacional
    • Supported an email management system using PHP and Perl with a MySQL back end.
    • Created a distributed, multi-daemon watchdog system with Python and MySQL, which monitored resource availability and behavior (internet links and internet services) and automatically handled the routing of data and services.
    • Led migration to a fault tolerant LDAP-based architecture to support all university applications.
    • Provided security consultations for new web PHP, HTML, and JavaScript web applications.
    • Developed several system administration scripting applications in Bash, PHP, Perl, and Python.
    Technologies: JavaScript, Perl, Bash, C, Python, PHP
  • Software Architect, Developer

    2011 - 2012
    DINT S.A.
    • Designed and developed an application for a Linux-based device which was controlled via Bluetooth from an Android device (tablet or smartphone) and controlled two video outputs (LED TV and a projector), one audio output, and a lightboard controlled from the device serial port or a different Bluetooth port.
    Technologies: C
  • System Administrator, Developer

    2006 - 2010
    CONICET - Centro Científico/Tecnológico Litoral Centro
    • Wrote many PHP and Bash scripts for custom system administration.
    • Developed an application to control a mass spectrometer and generate graphic representations of the results.
    • Designed and developed an inventory system for the organization of assets.
    Technologies: Visual Basic, Bash, PHP
  • Software Architect, Developer

    2004 - 2005
    Omega S.A.
    • Designed and developed a web-based system to assist with the running of a betting game in a Venezuelan casino in Venezuela, which generated the necessary random entities, calculated the bet awards, and graphed the results of the game.
    • Designed an application protocol for electronic money transfer and accounting.
    • Designed and implemented the server architecture to support several application deployments.
    Technologies: JavaScript, HTML, PHP, Java


  • DevOps @ Priceblink.com

    Cloud infrastructure management based on Rackspace services (Provisioning, Load Balancing, Database replication). Application monitoring and deployment (Ruby, PHP, Git, Capistrano, New Relic).

  • Developer @ EvoBits Information Technology SRL

    Developed across the full stack:
    * run security audit.
    * implemented security measures.
    * developed template subsystem.
    * developed internal messaging subsystem.
    * developed DDoS mitigation system based on Redis.

  • DevOps @ RabbittApp.com

    Designed, implemented, and administrated a high-availability AWS infrastructure.

    * VPC with VPN access.
    * Load Balanced Public Web Layer.
    * Load Balanced Private App Layer.
    * Autoscaling Layers.
    * Multi Availability Zones all Layers.
    * Master Slave Multi AZ RDS.
    * SES service for mail sending.

  • Multi-daemon Watchdog System

    Designed and developed a multi-daemon based system that monitors resource availability and behavior (internet links and internet services) and automatically make decisions about the routing of data and services. There are multiple instances of an agent daemon and one central daemon which performs decision-making.

  • Multimedia Controller

    Designed and developed an application to run on a GNU Linux-based device, controlled via Bluetooth protocol with an Android tablet or smartphone. The app controls two video outputs, one audio output and a serial connected lightboard, all concurrently and independently. The app is coded in C and heavily built on top of libVLC library.


  • Languages

    Bash, Python, C, PHP, JavaScript, SQL, XML, Perl, Visual Basic, CSS, Java, C++, HTML
  • Tools

    Ansible, Amazon ECS (Amazon Elastic Container Service), Amazon EKS, Chef, Jenkins, AWS OpsWorks, Vagrant, Capistrano, Terraform, Boto 3, Apache, Xdebug, SaltStack
  • Paradigms

    DevOps, Object-oriented Programming (OOP), Procedural Programming
  • Platforms

    Linux, New Relic, Amazon Web Services (AWS), Rackspace Cloud, Windows, Kubernetes, Docker, Arch Linux, WordPress, Ubuntu, CentOS, Rackspace
  • Storage

    MySQL, MongoDB, Datadog, PostgreSQL, Vertica
  • Other

    GitFlow, System Administration, Bluetooth, Ajax, AWS, Autoscaling, Drones
  • Frameworks

    Django, Bootstrap, Symfony 2, CodeIgniter
  • Libraries/APIs

    jQuery, Node.js, Puppet.js


  • Engineering Degree in Computer/Information Systems Engineering
    2000 - 2006
    Universidad Tecnológica Nacional - Santa Fe, Argentina


  • AWS Certified Solutions Architect - Associate
    AUGUST 2018 - AUGUST 2020

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