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Mark Casas is a seasoned IT professional with extensive experience in technical support, server administration, and network management. He has worked with various organizations, including San Diego Metropolitan Transit System (MTS), Arch Health Partners, and the Port of San Diego. Mark holds a Bachelor of Science (BS) in Information Technology and has obtained certifications such as A+ Certified, Microsoft Certified Professional, and Security+. He is proficient in a range of technologies, including Windows 7, Active Directory, and Cisco VOIP systems.

Credentials

  • A+ Certified
    Comptia
    Oct, 2001
    - May, 2026
  • Microsoft Certified Professional
    Microsoft
    Sep, 2001
    - May, 2026
  • Security+
    CompTIA

Experience

    • United States
    • Truck Transportation
    • 500 - 600 Employee
    • Information System Security Engineer
      • Jan 2022 - Present

    • System Administrator
      • Dec 2018 - Jan 2022

      * Maintains, updates, plans and installs servers and application software including hardware, firmware and OS upgrades.* Monitors and maintains the hardware and software for the datacenter infrastructure within the 3 data centers* Monitors operations, disk usage, performs system tuning and makes recommendations for improvements on both physical and virtualized environment * Assist our Security engineer with monitoring and analyzing risk assessment on our network using: Tenable, Darktrace and Crowdstrike appliances.* Lead administrator for configuration and maintaining our Cisco VOIP system* Maintain and upgrade our Avigilon CCTV and card access systems * Performs hardware and software problem resolution and assists in the development and documentation of technical standards.* Responds to work orders utilizing the ticketing system problem queue * Effectively and proficiently describes functionality, provides details as to product features, demonstrates, installs and answers technical questions about all system applications and products and their interaction to support the business functional areas.* Determines system requirements for projects, system performance, future growth and expansions.* create user ID profiles, performing security evaluations, audits of the Active Directory, providing end user support and help desk services.* Documents and trains other IT team members on maintenance and usage of new and existing Infrastructure and Enterprise technologies.* maintain current documentation and diagrams on new and existing systems.

    • Support Analyst
      • Dec 2016 - Dec 2018

      - Assist Service Desk with difficult task and act as the escalating point for resolution; act as the bridge between System Administrator, Network Administrator and Business System with all departments in MTS; implemented the TrackIT Barcode module to maintain IT assets; assist our Business System Analyst on systems that are implemented for their business needs; assist our System Administrators with Cisco VOIP implementations within the Cisco business application; implemented and maintain our answering service to assist phone coverage for on-call or outages; administrate the Stromberg Time Keeping Supervisor application; develop and maintain API and GTFS apps for real time public transportation; work with Procurement on purchasing IT equipment or systems based on Procurements policy.

    • Computer Support Specialist
      • Sep 2015 - Dec 2016

      - Provide tier 2 technical support for remote and local users throughout MTS employees and vendors using SLA; act as the technical resource for MTS IT Department by providing helpdesk support on desktop, laptops, tablets, printers and VOIP phones; provide support on various bus and trolley applications; act as a technical support for CPOS system; administrate and configure Cisco phones; provide security in AD with password resets and security groups; provide support for SAP and Agentry mobile Client; work on various project for the CIO, System Administrator, Network, Application and Business Managers; survey and make technical recommendations to make various departments workflow more efficient; administrate Stromberg & Kronos Clock System; part of the SAP Forms Development team to create digital task list. Managing the Dell Venue 5130 Tablet Windows 10 imaging and deployment process. Provide support for the Network and Business support with the GPS system on the Trolley by configuring Cisco 829 routers.

    • PC Technician (Technical/Network Support, System Administration, Security & System Analyst Support)
      • May 2013 - Sep 2015

      - Provide tier 1 and 2 support for local and remote users in a timely manner. Perform desktop support tasks such as image, configure, install, maintain and upgrade desktop and tablets (Laptops & iPad). Updating software, configure mobile devices (Android & iPhone) and adding/configuring network printers. Create and maintained an imaged on the KACE Server. Administrate, configure and monitor using Cisco Call manager, Unity and CCX Cisco phones for deployment and Historical Reports and CDR for monitor. Provide 2nd tier support for the VOIP system. Act as system administrator to create and disable user accounts. Create users accounts, security and distribution groups and grant access & membership in Active Directory. Create email accounts and assigning permissions for mailbox rights in Exchange Console, setting archive folders and training users with OWA access on an external network. Perform system administration work for user accounts in Active Directory, NextGen (EMR) and eCW system. Run weekly and monthly backups using Symantec Backup Exec 12.5. Setup Cisco WebEx meetings and vendors equipment’s for board meetings. Train IT and non IT employees on hardware devices and business applications. Part of the enterprise security virus update team. Assist IT Director, Senior Application Specialist, Network Administrator and Sr System Administrator with long-term or shot-term projects as needed.

    • Business and Information Technology-Intern
      • Oct 2011 - May 2013

      Provide first-level help desk technical support for Support System Support Analyst 1 & 2, Network Administrator, Business System Administrator and 750+ Port employees through phone, email or VNC; Cisco VOIP phone changes; set-up, and installation of Citrix Server and ICA Client for remote connection to Enterprise Network; Set-up Zen/Ghost images for workstations & servers; Use of Track-It ticketing systems to monitor system performance, identifying & implementing reliability, recommending upgrades and replacements for hardware & software

    • Computer Tech
      • Jul 2002 - Sep 2004

      Repairing, troubleshooting, building, upgrading computer systems, & basic networking; Customer Service

Education

  • 2010 - 2013
    University of Phoenix
    Bachelor of Science (BS) Information Technology, Information Technology
  • 1995 - 1999
    Bonita Vista High
    GED

Suggested Services

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Industry Focus. “Computer and Network Security”

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