Experience

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  Mastech Digital

  • Pennsylvania, United States

  • Network Engineer

    • Feb 2021 - Present
    • Pennsylvania, United States

    • Responding to customer inquiries and conducting network surveillance.• Initiating and resolving incident management tickets.• Examining physical layer and logical problems using standard isolation methodologies.• Utilizing tools for router access, circuit layout, automated and manual circuit testing, and ticket management.• Analyzing network surveillance data and addressing any issues that were identified through the analytics.• Receive and manage ticket escalations from other teams as well as various monitoring tools involving service-affecting issues.• Troubleshoot, isolate and correct service-affecting issues on the network in areas including but not limited to: routing protocols, routers, switches, firewall administration, MPLS, BGP, VPN, load balancing.• Plan, schedule, and implement network maintenance activities which include firmware upgrades, hardware replacement and network infrastructure augments/changes.• Work with network infrastructure/service providers to identify and correct causes of circuit disruption.• Work with hardware vendors to determine causes of device failure/issues.• Incident management during critical events that impact the network, including internal and external communications, team coordination of repair and then root cause analysis efforts.• Communicate effectively with internal and external audiences with varying levels of technical expertise.• Maintains high quality customer service to internal and external groups when needed.

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  APEX SYSTEMS, Cary, NC

  • Cary, NC

  • Voice Noc Engineer

    • May 2018 - Jun 2019
    • Cary, NC

    • Performed monitoring and surveillance of Verizon Legacy Voicemail and Global SS7 networks at the Verizon Cary Network Management Center (NMC) for various switching technologies (Genband, Sonus, Lucent, Ericsson, Alcatel, Tekelec). Responsibilities also included the maintenance and surveillance of the Genband CIM (uReach), Comverse, IBM, SC3100, and SS8 Serie6 Voicemail platforms and all SS7 links globally.• Proactive network monitoring of link and switch network elements via Verizon Network Management systems.• Followed established procedures and policies when responding to network alarms and events.• Performed initial trouble triage to include fault isolation and providing and/or engaging next Tier technical support as required.• Trouble ticket management, flash notification management, escalation management.• Successfully communicated technical information and status to customer service centers, technical support organizations and Verizon management teams.• Ability to clearly communicate status of work activities both verbally and written.

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  U.S. Cellular

  • Clinton, NC

  • Network Switch Engineer

    • Nov 2007 - Sep 2017
    • Clinton, NC

    *Maintain 3G and 4G network performance availability at 99.998% or better.*Service affecting tickets were consistently resolved in less than 3 hours.*Met or exceeded SLA’s for non-service affecting tickets of better than 93% of the time, which exceeded company expectations. *Maintained 100% inventory scan and better than 99% asset tracking. *Created scripts for configuration changes to Nokia 7705 and 7750 routers which improved 4G network performance by 22%.*Performed upgrades and parameter changes to 4G LTE equipment such as eNodeB’s, MME, aggregate routers, and cell site routers which resulted in a 20% improvement in network performance.*Increased team efficiency by 3 times by creating scripts to automate the cell site router integration process.*Maintained multiple Mobile Switching Center (MSC) equipment platforms such as Ericsson, Coriant, Lucent, Nokia, Emerson, Comverse, etc. Investigated and resolved multiple system alarms and outages to maintain high system availability and integrity.*Performed extensive problem determination and problem resolution of customer critical call processing issues. Engaged the Network Operations Center (NOC) when 6 or more customer tickets were received in Remedy with the same issue to get the ticket directed to the appropriate team for resolution.*Provided support to the (NOC), Technical Support, System Performance, SS7, Information Systems (IS), Network Field, and Data Services teams in evaluating system performance, resolving service issues and maintaining switch and data network performance/growth.*Supported the planning, testing, and acceptance of Public Switched Telephone Network (PSTN) trunking and backhaul growth, switch equipment growth, and hardware & software upgrades. *Oversaw the installation and integration process, as well as onsite vendors. *Interacted with external vendors such as Nokia, Lucent, Ericsson, Coriant.*Supported network IP routing protocols BGP and OSPF, VLANS, and STP.

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  Nortel Networks

  • Dallas/Fort Worth Area

  • Senior CDMA Network Technician

    • Mar 1987 - Oct 2007
    • Dallas/Fort Worth Area

    * Perform installation and commissioning of wireless products, using CDMA technology, in customer networks.*Supervised installation crews.*Made engineering changes during equipment installation when necessary and updated floor plans.* Perform 64K to 128K ENET upgrades, Netra 1280 Migrations, ENET shelf additions, MS port card additions, MS port consolidations, Dual LPP migrations, LPP to FLPP upgrades, CIU/CAU/RMU additions, SPM additions, DTC additions, Hard drive replacements on E-450 BSSMs, and CBRS/Passport 15K Installation and Commissioning according to the procedures in the INSTALLATION METHODS manuals.* Perform installation, problem determination, and upgrades on components of the BSC such asCBRS, and SBS shelves according to the procedures in the INSTALLATIONS METHODS manual.* Perform administrative duties associated with the job.* Interface with the customer on site issues when necessary.*Inspect customer site for any problems that may delay or prevent the job from being completed.