SUMMARY

• A history of solving Linux problems (both simple as well as complex), a dynamic people person wif an ability to get along wif just about anyone and finally an innate drive to ensure both internal & external customers are satisfied wif the results of my work, as well as management.

AREAS OF EXPERTISE

• Self - motivated & proactive - Deep knowledge of OPC (Oracle Public/Private Cloud)
• Strong verbal communication- Cloud technologies (Iaas, Paas, Naas, Saas)
• Highly skilled wif Linux administrator- Microsoft Server / Desktop knowledge
• Early adopter at Oracle of Kubernetes- libvirt/kvm virtualization skills
• Extremely well versed in various scripting- Intermediate knowledge of Apple MacOS languages (primarily Bash, followed by Python- Deep knowledge of RCA (Root-Cause-Analysis) PowerShell, VBS, VBA)- CDN (Content Delivery Network / Akamai)
• Extremely dedicated to solving internal as well - Git/DNS/AWS/Debian/CDN/NAS/Cisco/YAML as customers problems- Personal philosophy "Ancora Imparo" (Michelangelo)
• Conversant in Spanish- EMC storage skills (Isilon, VNX)

PROFESSIONAL EXPERIENCE

Principal IT Systems Analyst

Confidential - Austin, TX

Responsibilities:

• RCA (Root Cause Analysis) of Linux processes that have developed failures or unexpected behavior (involves SVP visibility, as well as recommendations on adjusting Linux kernel parameters/configurations/tuning
• Cloud Deployment utilizing Xen, amongst other Oracle-proprietary products
• Research, architect and implement new technologies including but not limited to Linux, Unix, Virtualization, and OpenLDAP integration for Oracle’s Cloud division. Project utilized a number of languages (BASH, Python, SED, AWK, etc)
• Prior to dropping Puppet in favor of Ansible, became familiar wif Ruby Gems as well as Ruby on Rails
• Cloud Computing and Configuration Management using both Puppet, Ansible, and Salt
• Contributing to Oracle’s transition from Puppet to Ansible via Python & YAML
• Plan, design, implement and monitor system administration processes and procedures to ensure efficient and effective utilization of systems and storage on Dev, Test and Production environments.
• Architect data center expansions as well as new DCs. Entails everything from DNS, Networking (NFS, TCP, IP, NTP, DHCP, etc. In addition, overall compute capacity (both immediate as well as future growth) is to be considered
• Respond to questions and resolve tier 3 problems originated by users through End User services.
• Actively participate in design/review activities to evaluate program/project approach, design and supportability.
• Entering change controls and performing peer review of all changes pertaining to systems and infrastructure.

Lead Systems Administrator (DevOps Team)

Confidential - Austin, TX

Responsibilities:

• Advanced Linux Administration
• Implemented autofs via sssd to enable Linux users to mount/unmount various NFS shares available throughout the enterprise
• CDN Akamai Lead Administrator
• EMC Isilon Administration (NFS)
• EMC VNX Administration
• Introduced Puppet to Senior Management and presented the benefits of CM (including example manifests)
• Persistent maintenance & updates on all ESX hosts (including adding SNMP support)
• Windows 2008 / 2012 Active Directory Administration
• Extensive VMware / VCenter Administration (Including Site Recovery Manager)
• Converted existing Windows VCenter machine from Windows to Linux

Senior Linux Systems Administrator

Confidential - Austin, TX

Responsibilities:

• Worked closely wif top-level military leadership to understand their technology needs and provide guidance concerning all military expenditures to further the US war effort in Afghanistan, Iraq, as well across the globe.
• Created and maintained dozens of scripts that were used throughout the organization (written in BASH, Python, SED & AWK)
• Supporting, interfacing and cooperating wif cross-functional teams. Evaluate and recommend systems software and hardware for enterprise systems.
• Managed a large-scale global Linux & Solaris environment
• Assisted the LSI (Lead Systems Integrator) in developing a PAM module that would allow pam ldap rapid access to soldiers in potentially hostile environments
• Worked closely wif Red Hat representatives to put in place RH Satellite Server and demonstrated the potential effectiveness of the product to senior management (management unfortunately decided against the plan)
• Created the organization’s first Linux SMB share (via Samba winbind & Kerberos) to allow both Windows & Linux users to upload, download, and share files
• Worked directly wif the lead Windows administrator to ensure winbind would allow users to authenticate against the Windows AD server using Linux
• Leading Linux environment builds, including design, capacity planning, cluster setup, performance tuning and on-going monitoring
• Responsible for maintaining customized Linux kernel derived from Red Hat Linux in support of production computing.
• Contribute to the evolving architecture of Linux and storage services to meet changing requirements for scaling, reliability, performance, manageability, and price.
• Work wif core production support personnel in IT and Engineering to automate deployment and operation of the infrastructure
• Manage, deploy and configure infrastructure wif Puppet and Spacewalk. Provide integrated solution design in a virtualized, clustered, and high-performance environment
• Testing, kernel issues, compatibility and deployment of new versions of custom DOD software.
• Interface wif various levels of active-duty military officers to tailor solutions for particular areas of engagement

Lead Linux Systems Administrator

Confidential

Responsibilities:

• Responsible for all Operations Backups (rsync and bacula) Device monitoring (Mon & and Cacti) Load balancing (MySQL, DNS, NTP, TFTP, Kickstart, Mail Servers, Apache, etc) Networking (Cisco) switches & routers, DDoS mitigation and detection utilizing Cisco gear, Cisco IDS as well.
• In order to mitigate the Distributed-Denial-of-Service attack these Cisco devices required a deep knowledge of TCP/IP, including zombie attacks, UDP & DNS floods, as well as IP fragmentation techniques.
• dis, combined wif amongst numerous other nefarious approaches to take down various sites required extremely skilled knowledge of how both TCP & IP functioned.
• Created an Identity & Access Management system written in PERL that ensured each individual had a unique login to dozens of servers.
• In addition, created a bastion host (again utilizing PERL) which recorded all commands issued by employees via a remote syslog server.
• (Previous to my taking over as Lead SA all employees were furnished an Excel spreadsheet wif root passwords to hundreds of servers…) Maintained dozens of Cisco core switches, 1U/2U switches as well as routers. T
• hese of course were segmented into VLANs for optimum network efficiency (backend for backups, employee access, front end for customer facing commerce) Windows 2003/Windows 2008 Server Active Directory Administration Apache tuning & maintenance AIX maintenance, updates, patching, etc
• Continuous care & attention paid to our load-balanced mail servers (using SMTP/Sendmail/Qmail/Postfix) VPS, hSphere, DSM Managing T1 through T3 RH Linux techs throughout the US, Canada, UK, and India. Spam prevention via CanIT as well as home-grown scripts