
Oscar A. Jara
Verified Expert in Engineering
System Administration Developer
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.
Portfolio
Experience
Availability
Preferred Environment
Amazon Web Services (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.
Work Experience
DevOps
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.
DevOps
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.
DevOps
MATI, LLC
- Implemented Node.js REST API provisioning, deployment, and scaling using AWS OpsWorks Chef.
DevOps
PriceBlink
- 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.
Advanced Operating Systems Professor
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.
DevOps
Arduino, LLC
- Created an integrated interaction among DataDog (monitoring, visualization), AWS Autoscaling, SaltCloud (orchestration), and Drone (continuous delivery).
Full-stack Developer
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.
Developer, System Administrator
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.
Software Architect, Developer
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.
System Administrator, Developer
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.
Software Architect, Developer
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.
Experience
DevOps @ Priceblink.com
http://www.priceblink.comDeveloper @ EvoBits Information Technology SRL
* run security audit.
* implemented security measures.
* developed template subsystem.
* developed internal messaging subsystem.
* developed DDoS mitigation system based on Redis.
DevOps @ RabbittApp.com
Includes:
* 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 (Agent Code)
Multi-daemon Watchdog System
Multimedia Controller
Skills
Languages
Bash, Python, C, PHP, JavaScript, SQL, XML, Perl, Visual Basic, CSS, Java, C++, HTML
Tools
Ansible, Amazon Elastic Container Service (Amazon ECS), 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, Autoscaling, Drones, Development
Frameworks
Django, Bootstrap, Symfony 2, CodeIgniter
Libraries/APIs
jQuery, Node.js, Puppet.js
Education
Engineering Degree in Computer/Information Systems Engineering
Universidad Tecnológica Nacional - Santa Fe, Argentina
Certifications
AWS Certified Solutions Architect Associate
AWS