• isaac [at] greplinux.com
• https://github.com/iwvelando
• https://twitter.com/IsaacVelando
• https://www.linkedin.com/in/iwvelando

Background

I am a Linux engineer with interests in security, performance optimization, and automation. I enjoy experimenting with new technologies to expand my knowledge and improve my capabilities, and I strive to be a quick learner and both a competent leader and capable worker.

Education

M.S. Applied Mathematics
Sept. 2010 – Jun. 2011
Northwestern University, Evanston, IL

B.S. Applied Mathematics/Minor: Statistics
Aug. 2006 – May 2010
Texas A&M University, College Station, TX

Proficiency

I have been a Linux enthusiast since early 2010 and have been running servers, scripting, and experimenting with new software. Most of the code I write is in Bash, Python, PHP, and MySQL. Additionally I have experience in large-scale mathematical simulations on clusters using MATLAB, Python, and Bash scripts.

Relevant Online Activity

LinuxQuestions.org (search by User Name: “Isaac Velando”)

Selected Experience

HandHeldPage, Houston, TX

Technical Lead, WhyiLike – Jun. 2013 to Present

• Linux System Administrator (Bash, sed, awk, cron, Regex etc)
  • Select, set up, configure, and manage Ubuntu and CentOS web servers, database servers, and computation servers
  • Configure SSL certs; performance- and security-tune Apache, MySQL, and OpenSSH services
  • Improve security, automate maintenance, and ensure reliability
• Automation Engineer (Bash, Python, PHP, Regex)
  • Write database-aware scripts to automate product operations including payments, notifications, invitations, rewards, and analytics
  • Built an automated email-based system to send FCC-compliant SMS messages on behalf of a client
  • Automate image creation, processing, and optimization using ImageMagick
• Web Developer (HTML5, CSS3, PHP, MySQL, Regex)
  • Develop and maintain a multi-user web application to facilitate product operations
  • Created custom interfaces for CRM and client dashboards
  • Developed a secure signup form with an automated payment and onboarding system
  • Write plugins for a WordPress site

Northwestern University, Evanston, IL

Ph.D. Student Researcher – Jun. 2011 to Jun. 2013

• Primary Research
  • Studied epidemics from a network science perspective
  • Developed large-scale mathematical simulations in MATLAB, Python, and Bash to run on a Sun Grid Engine cluster
  • Managed a MySQL server for storing and accessing large datasets
  • Contributed batch processing articles to research group wiki
• Previous Research
  • Improved mathematical models for laser and fiber optic systems
  • Investigated rare events using simulations in MATLAB and Python

Truman College, Chicago, IL

Adjunct Professor – Jan. 2013 – May 2013

• Developed full set of original course materials in LaTeX and presented and administered them to a college algebra class
• Addressed an audience of students with highly diverse and varied backgrounds

Skills/Tools

Scripting

• vim
• Bash — including sed & awk
• Regular Expressions
• Python
• PHP
• Cron
• MATLAB

Linux Distributions

• Debian, Ubuntu, and various derivatives
• RHEL, CentOS
• Arch

Server Software

• Apache
• MySQL
• OpenSSH
• rsyncd
• iptables

VPS Providers

• Amazon EC2
• Rackspace Cloud Servers