Experience

Aspen Systems Inc

• United States
• Computer Hardware Manufacturing
• 1 - 100 Employee

• System Engineer

  • Jul 2020 - Present

  Design, build, and deploy High Performance Computing clusters. Design, build, and deploy High Performance Computing clusters.



Self-Employed

• Real Estate
• 1 - 100 Employee

• Information Technology Solutions Architect

  • Oct 2007 - Present

  Design, deploy, and maintain: - Vmware vSphere infrastructure, virtualized Windows Servers providing AD, DNS, Exchange services, Windows Powershell and Linux Shell scripts used to gather SMTP header information for email spam filtering. - Firewall (iptables) and traffic shaper on COTS wifi routers using DD-WRT. - Desktop PCs and troubleshoot and resolve end user application errors. Design, deploy, and maintain: - Vmware vSphere infrastructure, virtualized Windows Servers providing AD, DNS, Exchange services, Windows Powershell and Linux Shell scripts used to gather SMTP header information for email spam filtering. - Firewall (iptables) and traffic shaper on COTS wifi routers using DD-WRT. - Desktop PCs and troubleshoot and resolve end user application errors.



General Dynamics Information Technology

• IT Services and IT Consulting
• 700 & Above Employee

• Sr. Unix Engineer and Unix Operations Manager

  • Aug 2018 - Feb 2019

  Sr. Unix/Linux Engineer and Operations Manager: - Lead liaison to the FDIC Unix SME and Unix Operations Team Manager, managing: o Support of enterprise Unix and Linux systems; o Responding to CSIRT advisories deployment of security patches; o On-call rotation and escalated matters. - Test new functionality, architectures, and equipment. - Develop and deploy innovative solutions to meet business requirements. Sr. Unix/Linux Engineer and Operations Manager: - Lead liaison to the FDIC Unix SME and Unix Operations Team Manager, managing: o Support of enterprise Unix and Linux systems; o Responding to CSIRT advisories deployment of security patches; o On-call rotation and escalated matters. - Test new functionality, architectures, and equipment. - Develop and deploy innovative solutions to meet business requirements.



IBM Global Technology Services (Formerly AECOM)

• Consultant - AECOM Unix/Linux Engineer

  • Jan 2014 - Jun 2018

  - Architect and manage enterprise Linux systems which service 100,000+ employees globally. - Architected and implemented ZFS on Linux to enhanced storage capacity with existing architecture for HPC systems. - Facilitate IBM Tools (Tivoli/Netcool) integration with the AECOM infrastructure and manage as Steady State Team member. - Identify improvement opportunities for operational excellence and systematically deploy the change plan and collaborate cross-departmentally to complete projects on time/ budget. - Evaluate new hardware/software and services, research new technologies, and present recommendations and justifications on hardware and software purchases. - Participate in change control and production control processes. Show less



AECOM National Security Programs (formerly McNeil Technologies)

• Assistant Director/IT Technical Manager

  • Oct 2007 - Jan 2014

  - Consolidated virtual machines from disparate VMware ESX3.5 and ESXi4 hosts to a central ESXi5 host. - Headed initiative to research, design, and deploy custom 43TB Linux NAS/NFS server to realize savings of over 80% over comparable commercial systems while increasing information availability by over 210%. - Successfully lead project to migrate over 1500 legacy Exchange accounts during transition management period. - Established trust between disparate AD forests with a combined membership of over 35,000 accounts and converted existing ACLs to comply with new policy conventions. - Designed, installed, and managed complete 10-gig fiber optic network backbone linking four sites with a combined 500 computer user base. - Lead project to utilize CAC card-based PKI supplemented with standalone Certificate Authority to issue Active Directory-integrated digital certificates to provide signed, encrypted email services and accessibility to JPAS. - Designed and oversaw clearance accreditation of various Red Hat Linux servers and Windows XP workstations, including custom Linux scripts to provide a weekly log auditing process. - Created custom Linux-based firewalls and NIDS utilizing customized kernels, SNORT configurations, scripts to auto-block penetration attempts, and filter scripts for monitoring IDS alerts. Show less



TRAWICK

• United States

• Director of Information Technology

  • Jan 2001 - Oct 2007

  - Sole responsibility for IT resources for $70m government contracting company - Served as expert systems and network engineering consultant for planning of numerous mid-sized contracts - Maintained/deployed systems at all levels, including employee workstations and virtualized server infrastructure - Administered web servers hosting an intranet and public-facing website - Administered Exchange 5.5-2003 servers with over 600 mailboxes and OWA support - Installed and supported Deltek GCS Permier accounting system, including the provisioning of separate domain - Migrated Novell directory and user accounts to NT 4.0 servers and then later to Windows 2000 and 2003 - Architected custom Linux-based mirror of web-enabled database (cloud) for Operation Respond (OREIS) contract - Served as team leader for National Naval Medical Center Information Security Team in support of firewalls and Linux-based infrastructure used to respond to NCDOC/NTOC Department of Navy advisories Show less



NIS Computers

• United States
• IT Services and IT Consulting

• PC Technician

  • Sep 1998 - Sep 2000

  - Complete PC build out and OS installation - Diagnosis and repair of malfunctioning PCs - Sale of PCs in store and at trade shows - Complete PC build out and OS installation - Diagnosis and repair of malfunctioning PCs - Sale of PCs in store and at trade shows



University of Maryland at College Park

• Higher Education
• 1 - 100 Employee

• Network and System Analyst

  • Aug 1995 - Sep 1998

  LAN/Internet cabling and access LAN/Internet cabling and access