Arnar DeMarco

Experience

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  U.S. Army Information System Engineering Command (USAISEC)

  Sept 1990 - Aug 1993

  Communications Equipment Quality Assurance Engineer (Specialist E-4)

  Ensured continued operation of the U.S. Army European Command Wide Area Network (WAN) • Deployed and tested Cisco routers, switches, modems, PADs, and AT&T 3B2 minicomputers at Army sites in Europe.• Diagnosed and repaired faulty components of the European Defense Data Network including Cisco routers, switches, PADs, and modems.• Performed quality assurance evaluation of LAN/WAN Defense Data Network communications devices.• Selected as lead technician on several technical assistance efforts based on extensive knowledge of systems.• Coordinated and performed network performance testing of military communications circuits at communications centers throughout Europe.• Lead tester of Digital Interface to Autodin Host (DINAH) system which included workstation, specialized software and digital encryption device. Show less

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  Impact Innovations Group

  Jun 1996 - Nov 1999

  Lead IT Consultant

  Charged with providing IT support to U.S. Naval Medical Information Management Center projects• Configured and deployed UNIX client-server system for U.S. Navy Hospitals worldwide, consisting of Informix database, 1-5 application servers and X-Windows terminals at each clinic.• Led installation and configuration of SCO UNIX on 2-10 Servers at 7 Navy sites and performed extensive UNIX troubleshooting at each site.• Provided on-site technical support to resolve applications software and network problems and assisted personnel in integrating client-server system with existing medical system.• Performed testing of upgrades to UNIX system and also performed the actual upgrades to most sites including Bethesda National Naval Medical Center.• Developed UNIX shell scripts that were used to perform remote system upgrades.• Co-led a $1.5M project to research, develop, document and deploy 53 Y2K compliant UNIX servers in U.S. Navy hospitals and clinics worldwide. Migrated from Interactive (SUN) UNIX operating system to SCO UNIX 5.0.4.• Provided on-site project support to Naval Medical Information Management Center including serving as Webmaster for 3 Navy projects, UNIX system administrator for 2 Bethesda Naval Hospital UNIX Information servers and configured NT servers for shipment to remote sites. Show less

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  U.S. Army Research Laboratories

  Jan 2000 - Apr 2000

  UNIX Systems Administrator

  • Ensured daily backups of software and research data.• Updated UNIX operating systems with latest upgrades and patches.• Created / maintained accounts on SGI and Sun Sparc servers.• Provided support to physicists with installation of software applications and utilities• Maintained UNIX scripts.

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  Saad Specialist Hospital

  Apr 2000 - Sept 2000

  Lead System Specialist

  • Served as NT/UNIX specialist in IT department.• Installed and maintained accounts on NT 4 Exchange server for hospital administrative staff.• Maintained switches and LAN wiring.• Provided PC application support to hospital administrative staff.

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  NOAA: National Oceanic & Atmospheric Administration

  Aug 2000 - Nov 2000

  UNIX Systems Administrator

  • Performed on-site UNIX systems administration tasks.• Assisted NOAA staff with UNIX related client and server technical issues.

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  Interwoven

  Nov 2000 - Mar 2005

  Software Support Engineer

  • Provided extensive software product support to engineers, developers, and administrators at enterprise class companies. This support focused on core InterWoven technologies within Content Management, Content Intelligence, and Content Distribution.• Replicated bugs using in-house UNIX and Windows servers, wrote bug reports, feature requests, and knowledge base articles for the various products that I supported.• Specifically supported TeamSite, OpenDeploy, and TeamSite Templating in both Windows and UNIX environments.• Served as lead engineer of small team for OpenDeploy software/network issues from east-coast support office. Show less

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  Quotient

  Jan 2004 - Jan 2008

  Technical Consultant

  Department of Education (2/2008 to 10/2008)• On-site TeamSite administrator at Department of Education headquarters for ED.gov website.• Fixed legacy Perl and JavaScript code used by workflow process.• Improved TeamSite interface by adding custom functions and improved CSS.Freddie Mac (5/2007 to 2/2008)• On-site consultant at Freddie Mac Headquarters. • Wrote custom TeamSite templates for creating/updating internal website pages.Department of Homeland Security / ICE / USCIS (3/2005 to 5/2007)• On-site TeamSite administrator for 24/7 web team responsible for maintaining ICE.gov and USCIS.gov websites.• Configured and maintained TeamSite, OpenDeploy, Templating (FormsPublisher), Workflow, and Perl Scripts• Vastly improved reliability of OpenDeploy deployments and added email notifications mechanism.• Planned and successfully implemented upgrade from TeamSite version 5.5 to 6.7.1. Show less

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  ActioNet, Inc.

  Oct 2008 - Sept 2013

  Senior Subject Matter Expert

  • Administrator of TeamSite web content management tool. Updated workflows and templates, and resolved any TeamSite/OpenDeploy or customer related issues. • Configured and manage ED.gov web analytics tool Urchin, generated reports as necessary, and maintained site link checker tool Linkscan• Upgraded TeamSite and OpenDeploy from 6.7.1 to 7.2 and performed customizations of TS 7.2 interface and templates, and re-wrote several scripts supporting workflow. • Drupal Developer for updated ED.gov web site. Implemented workflow portion of new Drupal install, and performed some module customizations.• Successfully planned and performed migration of Unix-based applications from outdated servers to new updated Prod/Dev/QA servers. This included development of new Perl scripts and optimizations to operate in new OS with higher server and network security standards.• Re-wrote log rotation script to eliminate nightly webserver downtime.• Performed various other UNIX server administration tasks on (8) Solaris and Linux servers such as script writing and maintenance, log rotation, maintenance of Apache and other general OS related issues Administrator of WebSphere, IHS, Linkscan, Urchin and FSA applications.• Wrote CAB requests for system changes and represented OCIO Web team in CAB meetings and implementations. Show less

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  Groundswell

  Sept 2013 - Jun 2022

  • On-site Solaris/Linux administration of ED.gov website servers and support servers. Includes writing and maintenance of Perl/shell scripts, maintenance of Apache/WebSphere, and identifying and resolving other general OS and application related issues. • Administrator of WebSphere, Apache, CVS, Linkscan, Urchin, JIRA/Confluence/Crowd, and custom FSA Unix-based applications.• Developer/administrator of HP/Autonomy TeamSite web content management tool which is used to maintain website content of ED.gov. Develop workflows and templates, and resolve any -TeamSite/OpenDeploy or customer related issues.• Drupal Developer for updated ED.gov web site. Researched and implemented workflow portion of new Drupal install, and performed Drupal module customizations as needed.• Frequently write change advisory board (CAB) requests for application and system changes and represent Chief Information Office web team in CAB meetings and implementations.• Upgraded TeamSite and OpenDeploy from 6.7.1 to 7.2 and performed customizations and re-builds of TS 7.2 interface and templates, and re-wrote several scripts supporting workflow. Show less

  • Cloud/Technical Architect

    Aug 2018 - Jun 2022

  • Senior System Engineer

    Jan 2015 - Jun 2022

  • Senior Subject Matter Expert

    Sept 2013 - Jan 2015
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  Soliel, LLC

  Jun 2022 - Nov 2023

  Senior Infrastructure Engineer

  Responsible for AWS development and administration supporting NBIS under the Defense Counterintelligence and Security Agency. -Developed CloudFormation template for implementing AWS Backup across accounts.-Developed AWS Lambda functions in Python that gathered resource information across multiple accounts, generated reports in CSV and Excel, and exported reports to S3 bucket.-Planned/deployed/managed Linux and Windows EC2 servers and MySQL databases for WebSpheredevelopment work. Work included creating and configuring Linux EC2 servers with development software and creating a Windows Bastion host for secure RDS access. -Created Athena databases using CSV data as a source for use by AWS QuickSight. -Created custom CloudWatch canaries that required cert/key authentication for secure websites.-AWS Billing administrator for AWS account provided to U.S. Air Force Academy, with Soliel asaccount owner.-Performed various other activities involving creation of IAM roles and policies. Show less

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  Nationwide IT Services, Inc.

  Nov 2023 - now

  Cloud Architect