| Professional Experience | Confidential Engineer Lead / Sr. Application Developer - Work with the OS infrastructure teams to ensure that the basic performance capacity agent Net-SNMP and various Hardware monitoring agents HP Systems Management, Dell OpenManage, IBM Director functions on over 20 variations of Unix and Windows OS's. These include Redhat RHEL 3-6, AIX 5.2 6.1, Solaris 8 11, SuSE 8,9,10, ESX 2.5.x 4.1 and Windows 2000 2008.
- Ensure all performance based metrics are reporting accurately across the various OS flavors.
- Configure, Compile and Develop all integrations for the Net-SNMP agent which currently runs on approximately 60,000 servers worldwide.
- Develop new agent extensions to facilitate newer or more precise performance metrics. These extensions are written using a variety of languages, but typically are written in Perl on UNIX and VB on windows based systems.
- Authored and administrate the framework used to upgrade the Net-SNMP agents on all servers within the bank. The framework was written using a combination of PERL, XML/XSLT, Javascript and shell scripts and typically upgrades more then 200 systems all over the globe per day without human intervention.
- Authored the RBAC routines in PERL that the performance framework uses to ensure only the appropriate members of staff have access to their systems.
- Act as a SME for Net-SNMP, HP Systems Management Agent, PERL, Javascript and general programming questions.
- Wrote dashboard utilizing AJAX and EXTJS to facilitate the onboarding/decommissioning of servers into our 'Advanced Analytics' workstream. All frontend work was done via EXTJS / Javascript and all backend work was completed in PERL.
- Developed and maintain the HP Systems Management Agent deployment and support logic via internally created RPMs on Linux and ESX due to their tight integration with net-snmp on Linux.
- Coordinate and implement all changes to the framework or to the agents.
- Serve as the liaison to the open-source community when problems are discovered in our environment. Work to ensure that problems are communicated to the appropriate developers within the community and that they're fixed.
Confidential Open Systems Engineer II / Unix Systems Administrator Technical Lead - Maintain approximately 1100 UNIX production systems with operating systems ranging from AIX 4.2.1.0 5.2, Sun OS 2.5 2.9, HP v10 v11, RH Adv Server 7.2
- Participate in quarterly security audits for our AIX environment. I document all the vulnerable services and user accounts in the environment and then work with our Line of Business to re mediate them.
- Coordinate and Implement all changes to mission critical servers.
- Patch and Re mediate our AIX environment on a monthly basis to ensure that our AIX environment is at least at an n-1 OS level and an n-1 maintenance level wherever possible.
- Developed a tool called rover that will allow an administrator to log onto any box in our environment through ssh or telnet whether AIX, HP, Sun, or Linux and run commands or to retrieve information.
- Support various High Availability clusters within the retail branch of the bank including HA on AIX and Serviceguard on HP-UX.
- Developed and maintain software web application to store root passwords which uses an ssl encrypted transport, two factor authentication, and a shared key encryption system which ensures that only the proper people have root level access on production systems.
- Provide 24x7 technical support to team members involving highly critical application within the company that handles over 15,000 daily banking transactions.
- Serve as the technical lead on the AIX and Solaris environment within the retail branch of the bank.
- Assist the Windows Production team with administration of Windows 2000 / NT servers where needed.
- Confidential
Unix Systems Administrator - Worked with Info Security to run ISS / NMAP scans on our Internet facing servers. Ensured file integrity using tripwire and checking for file discrepancies within it's encrypted database. Enabled IP black holes using portsentry on many machines.
- Administered the DNS architecture. Global Crossing hosted 17,250 zones for customers on 20 different DNS servers throughout the world. All of the DNS servers were IBM B50's, H70's running AIX 4.3
- Created and implemented programs for production systems. Programs were primarily written in Perl and included many web-based cgi's as well as several automation programs that we used on many different machines and on multiple platforms. Programs included process monitoring, ADSM tape cataloging, CGI Back end processing .
- Managed 80 Solaris servers to ensure that the LDAP database and NNTP Usenet platform were operational. All of the Solaris boxes were running Sun OS 5.8.
- Maintained 120 AIX production systems. AIX machines included many pSeries standalone boxes and a 3 frame SP cluster. These servers were running AIX 4.3.3.0. Ensured services such as IRC, FTP, POP, NAMED Bind 8, 9 , SMTP Sendmail , NTP, HTTP Apache , IMAP, etc. were running and accessible. Confirmed hardware functionality and replaced if necessary.
Confidential Northeast Regional Desktop Support Technical Lead - As the Northeast regional technical lead for Global Crossing. I was the final escalation point for the desktop support team. Some of my daily duties included:
- Acted as a liaison with hardware vendors and worked with them to assure timely resolutions to outages.
- Developed applications in Visual Basic to improve the teams' day-to-day performance.
- Coordinated all desktop responsibilities with several teams within the IT department.
- Handled all applications that were to be turned over for support within the organization. Instructed the applications developers/vendors in the company's desktop support guidelines and insisted they adhere to these standards before any software was accepted.
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