SUMMARY

• Experience installing, migrating, configuring, administering, and disaster recovery with Red Hat Enterprise Linux (RHEL) and Centos in a clustered environment.
• Strong technical skills on Linux, Windows 2000/2003/2008 Advanced/Data center Server, Cisco routers and switches, and Cisco Firewall/VPN configuration.
• Highly proficient at server and network optimization, memory management, and use of diagnostic tools; excellent knowledge of routing protocols with solid protocol and packet level troubleshooting skills.
• In depth Forensic experience, allowing me to securely investigate/analyze multiple machines simultaneously over the LAN/WAN at the disk and memory level using Encase Forensic.
• Excellent customer support and partner interface skills.

EXPERIENCE

Confidential, Mobil 10/10 - Present
Linux HPC Specialist
Responsibilities:

• Support four X86_64 Linux based HPC Clusters running PBS Torque and SGE (Sun Grid Engine).
• As the only onsite technical contact, I support both Rocks based and homegrown based scripted clusters with shared NFS and Infiniband.
• Provide software/hardware break fix support for Solaris 9 and 10.
• Provide user support of statistical applications and related tools (Gaussian, Open MPI, Intel and PGI Compilers, Matlab, Comsol, Abaqus, Ilog, Gurobi, and Lammpi).
• Redesigned the kickstart process to a pxe based install, including bash/perl scripting and creating rpms for the scripts I wrote.
• Experience with Kerberos and Pam Authentication.
• Experience with the Remedy ticketing system.
• Taught classes to the user community on source control app usage from the linux command line and the about the different queuing systems.
• Designed and implemented the Nagios monitoring infrastructure on the linux clusters.
• Upgraded and deployed the latest Ganglia Monitoring software across the clusters.
• Handled daily user tickets for cluster users
• Compiled Software/C Code as needed

Confidential, 11/10-03/11
NIBR (Novartis Institute for Biomedical Research) - Linux HPC Specialist
Responsibilities:

• Linux Project Development, integration and infrastructure.
• SGE Scheduler Configuration including configuring a long-job queue that runs jobs with high nice values.
• Created a priority job queue with low nice values, whereby jobs submitted to it will run right away, stacked on top of any possible jobs in the long-job queue
• Created different queues that groups machines with different hardware characteristics (CPU, memory, IB)
• Created queues that specific groups of user will have automatic priority access to
• Implemented preemption which is similar to job suspension/check-pointing features
• Redesigned the queueing systems from a slot based scheduling to a load based scheduling with preemption.
• Taught in-Person classes for the other administrators on SGE and Cluster usage.
• Python scripting for task automation.
• Provided End User SGE and Linux classes.
• PBS-to-SGE script migration for a 6 applications.
• Implemented XML-Qstat, Phplicensewatcher (for Flexlm based apps), web based job and license monitoring for the clusters.

Confidential, 06/08-09/10
Modesim - Application Service Manager - Linux HPC Specialist
Responsibilities:

• Responsible for troubleshooting the LDAP authentication enabled Linux clusters (5 clusters in total in multiple countries) and the software that runs on it.
• Support the modeling and simulation group on their Clinical Trials related modeling.
• Work with users that are highly technical, communicating on a peer to peer level.
• Knowledge of clinical applications.
• In-depth knowledge of statistical applications such as: R, WinBugs, Comsol, Nonmem, PSN (Perl Speaks Nonmem), Splus, Matlab, Star CD and Ansys.
• Experience and Knowledge in Linux administration (RHEL 4.x/5.x) RedHat, AIX running on LPARs.
• Experience and Knowledge of Windows server administration, including Active Directory and Citrix.
• Knowledge of job scheduling and distribution software SGE (Sun Grid Engine).
• Support, Manage and Maintain SGE which is used on the high-performance computing (HPC) clusters and is responsible for accepting, scheduling, dispatching, and managing the remote and distributed execution of large numbers of standalone, parallel or interactive user jobs. It also manages and schedules the allocation of distributed resources such as processors, memory, disk space, and software licenses.
• Taught classes including: Beginner Linux Training, Sun Grid Engine, Subversion (Source control app), Advanced Shell Scripting, Using a HPC Cluster.
• Provide support for Java applications utilizing RHEL 5.4, (Tomcat/Apache) with an Oracle Database backend.
• Established internal standards for application installation; (Commercial, FlexLM based and Open source) including application usage with respect to a clustered environment.
• Knowledge of general networking concepts, services, and protocols (VPN, Firewall, TCP/IP, SSH, FTP, HTTP, X11, RDP).
• Knowledge of storage management, file system administration and configuration (NFS / Samba / GPFS /NAS / SAN), implementation of backup and restore concepts in clustered environments.
• Configured and managed the clusters GPFS file system (General Parallel File System) to work in a multi-tiered storage approach, SAN and NAS with automatic data archiving.
• Experience working with Cluster Management software including IBM's X-CAT and IBM's CSM - Cluster Systems Management.
• Used Puppet and Cobbler for server configuration management.
• Scientific background.
• Knowledge of GxP policies and procedures, qualification and validation of the environment.
• Experience with System Development Life Cycle methodologies.
• Daily experience with VMware ESX Server.

Confidential, 02/03-04/08
Investment Bank Wintel Admin - Legal and Compliance; E-Discovery

• Support over 250 NT/2000/Novell/Unix Trading Floor and Investment Bank servers.
• Proactively monitor Investment Bank Intel/Unix server environment in the Midtown Campus, respond to and follow up on server performance using Compaq Insight Manager, IBM Netfinity Director, Net Cool, Tivoli and SQL Enterprise Manager.
• Identify and troubleshoot server performance bottlenecks.
• Install and configure Windows 2000 and Windows 2003 servers.
• Helped to maintain physical and OS level inventory of Intel server environment in Midtown Campus.
• Meet with and advised Project Managers on server specifications and configurations for new projects, including reviewing and modifying Technical Solution Documents.
• Conduct technical assessment, diagnose and resolve and/or escalate problems. Identify and address recurring problems.
• Support physical environment of Midtown Data Centers and involved in projects of new build outs/modifications and Data Center takedowns.
• Create DOS / VB scripts, for the JPMC Legal Project Managers and the Office of the General Council, to investigate and analyze data that resides on NetApp Filers (NAS) within the Investment Bank.
• Support the use of (TDP) Tivoli Data Protection for Domino on the AIX platform.
• Supply support files for the Legal Department's investigations of SEC violations utilizing using (Unix Based) Heritage Bank One AIX server farms.
• Architected, with the requirements from the Office of the General Council, a Legal Lab in the UK to mitigate international Data Privacy Laws.
• Use, support and maintain (ADSM) Tivoli Advanced Data Storage Manager on AIX 5.x Servers.
• Provide E-Recovery data forensics, utilizing Encase Forensic and Enterprise software.
• Train and develop staff with regards to regulatory requirements and procedures to ensure competency of employees.
• Support E-Discovery Servers, to include Enterprise Security Manager Security (ESM), Patching, Tideway Scanning, Enterprise Change Requests, and coordinating outside vendor support on server equipment.
• Worked as a technical advisor with the FP & I (Fraud Prevention and Intervention) team, mitigating risks to the Bank, on Department of Justice Investigations and SEC Investigation matters.
• Identified fraud, security events and employee integrity issues when they are taking place and investigate/remediate with immediacy and without alerting targets.
• Escalate all major regulatory risks to executive management and make recommendations of how to mitigate risks
• Solid expertise in forensic methodology: evidence acquisition, preservation, chain of custody preservation, examination and presentation of findings.
• Knowledge of computer-based Litigation Support systems and procedures.
• Employ negotiation and conflict resolution skills.

Confidential, 09/00-12/02
Lead Network Administrator

• Single-handedly handedly managed all WAN/VPN related issues for an 11 site, 420-user network with over 3500 nodes, including troubleshooting, remote diagnosis, and initial setup.
• Setup, configured, and penetration tested Squid Reverse Proxy Servers to add an additional layer of security for our web and email servers.
• Building and hardening of Linux application servers.
• Setup, monitored, and adjusted Snort and Dragon Intrusion Detection Systems on Slackware 9.
• Developed and enforced corporate security policies and procedures, monitored security bulletins, performed server hardening, installed anti-virus suite (Norton Antivirus Corp. 7x), and applied patches and updates.
• Implemented Cisco VPN remote access for vendors and remote users, saved $200k by phasing out dialup access.
• Deployed multiple Cisco Pix 515's with DMZ configurations to protect intranet resources.
• Migrated entire network infrastructure from Compatible Systems routers to Cisco routers.
• Designed and implemented new Cisco Secure ACS Radius server (TACACS) structure.
• Conducted all Penetration testing of various Internet/Extranet and DMZ resources.
• Worked with log file analysis, including deployment of "real-time" monitoring of log files for automated and manual problem remediation.
• Served as hands-on manager with overall responsibility for all LAN/WAN infrastructures in a 24/7 environment which included an in-house IIS/SQL Server/Exchange Server farm running Windows 2000 Advanced Server and Windows NT 4.0 Enterprise Edition networked via Cisco 3600/2500 series routers and Cisco 2900 series switches.
• Installed, configured, and administered MS Exchange 5.5 and Lotus Notes for internal, remote, and mobile users; implemented FTP Server and Squid Reverse Proxy Server for Internet access; developed and implemented plans for migration from Exchange 5.5 to Exchange 2000.
• Provided on site field technical support to numerous corporate customers throughout the world; customers included Philips Semiconductors (Holland), Intel (OR), Agilent Technologies (CA), Akrion (PA), LSI Logic (CA), Agere (PA).
• Led and resolved a Microsoft Cluster Server escalation at IBM Semiconductor facility in Fishkill NY.
• Designed LAN and WAN systems architecture, negotiated IT contracts, documented existing and proposed network infrastructure, and performed network capacity planning, performance monitoring, and optimization.
• Helped support and configure ERP solution; to include problem remediation, database support, data migration, and application support.
• Supervised and served as a lead person for two employees, a Network Analyst and a Database Analyst who provided support for desktops, laptops, LAN hardware, and Business applications.
• Implemented and maintained Rudolph's WAN connectivity with nine domestic and international offices.
• Configured and maintained WAN links through Cisco 3600 and 2500 routers, while using 3COM and Cisco switches for user access to database resources.
• Implemented backup strategy (Backup Tapes, Cataloging, and Offsite Storage); handled backup of Exchange/SQL database and 40+ NT/2000/Linux servers using ARCserve 2000.
• Led several infrastructure deployments, including server room and LAN build-outs and upgrades, and new branch office rollouts.

Confidential, 09/99-09/00
Network Administrator

• Implemented and supported all network security measures to include Linux syslog servers, Linux Intrusion Detection systems, Linux proxy servers and hardware based firewalls.
• Network wiring and troubleshooting with Cisco equipment.
• Deployed on customer site to solve a variety of complex network problems; including all server and network escalations in networks with 700-1000 nodes.
• Daily maintenance and upgrading of Novell and NT Servers.
• Responsible for the set up of new and refurbished PC's for our clients; provided desktop support when necessary.
• Performed the installation of multiple DSL internet connections with Paradyne and Cisco Hardware.
• Installed and configured ISDN routers.
• Programmed with Visual FoxPro on a team designing software for Quality Assurance.

Confidential, 03/98-10/99
Network Administrator

• Experience working level II Trouble Tickets for 1500 plus employee site.
• Patched, upgraded, installed, and troubleshot 120+ NT and Novell 3.12 servers.
• Maintained customer Oracle databases and daily backups using ARCserve.

Confidential, 07/96-Present
Clients: Donald Trump's modeling agency, Confidential, The City of New York/Parks & Recreation Department, and RE:Quest Model Management.

• Maintain multiple Networks operating on Red Hat, Mac OSX, Windows XP/7 desktops, and Windows 2003/2008 servers.
• Currently maintain and support multiple enterprise class Firewalls and VPN solutions. (Cisco)
• Maintain, administer and support DHCP, DNS and Active Directory on 2003/2008 based servers.
• Perform Security Audits and implement recommendations.
• Performed compliance audit (gap analysis) between written policy and implementation and researching regulatory and other requirements for data protection for various clients.
• Experience with troubleshooting and fixing Server/PC hardware and software problems.
• Designed and implementing a 30 site Fully-meshed on-demand VPN with Tunnel Endpoint Discovery for the NYC Parks Department, on a NON-PROFIT basis.

SKILLS

Operating Systems
Linux, AIX, Solaris, MS Windows 2000, 2003, 2008 Professional/Server/Datacenter/Advanced, Windows NT/XP/Vista/7, Novell NetWare 3.11/3.12/4.11/5/6
Networking Services, Protocols, and Topologies
DHCP, DNS, WINS, TCP/IP, SNMP, LDAP, HTTP, FTP, SSL, NFS, NTP, TCP/IP, VPN, IPSec, Frame Relay, DSL, ISDN, Ethernet, Fiber Channel (FC), Wireless
Networking Software & Tools
Cisco IOS, Norton Antivirus Corporate Ed., Squid Reverse Proxy Server, Putty (ssh client), Sniffers, Port Analyzers, Tcpdump, Syslog, Snort, (MRTG) Multi Router Graphing Tool, Ipchains, Iptables (Linux firewall), TACACS Radius authentication server, Terminal Emulators
Hardware
Cisco Routers Switches and Firewalls, 3COM switches, Compaq Servers, IBM Servers, Dell Servers, Dell workstations, IBM/Sony/Dell/Toshiba Laptops, LTO tape libraries, ADIC tape drives, RILO boards, RSA II Cards, AEP SSL Accelerator cards
Software
Microsoft Office (Word, Excel, PowerPoint, Outlook), VNC, Visio, Microsoft Project, Ghost, Exchange server 5.5 and 2000 Enterprise, Visual Fox Pro, Qmail, Solid works 2002, AutoCAD, Goldmine, Mutt, Lotus Notes, Matlab, MySQL, Dragon, IIS, Apache, PC Anywhere, Partition Magic, Internet Security Scanner, GFI LANguard, Network Security Scanner, RSA Secure ID, Snort, Veritas Backup Exec, ARCserve, BAAN ERP Solution, TCP Wrappers, Tripwire, PGP, IBM Netfinity Director and Compaq Insight Manager, Hummingbird Exceed, Active Directory, Ganglia, Nagios (Server Monitoring), PHP License Watcher (FlexLM License Monitoring), PBS Torque, Sun Grid Engine, Rocks and shell scripting.

EDUCATION

Sun Grid Engine - High Performance Computing Scheduler (HPC)
Guidance Software - EnCase Advanced Computer Forensics
NYLUG Linux Bourne Shell Scripting 2006
Microsoft Certified Professional - Windows 2000 2004

SANS.org course - Firewalls, Perimeter Protection, & VPNs 2002
Global Knowledge course - Intrusion Detection Technologies in Depth 2002
Bridgewater Technical Inst. - Administering NT4 Server and Workstation 2000
Broome Community College - Computer Science Major 1997
University of St La Salle - Honorary Certificate in Computer Science 1993

MILITARY

United States Army - Combat Medic - Honorable Discharge 1999