End to end technical support of AT&T’s IMS/USP Voice Core Network consisting of: SBC/BGW, P/S/I-CSCF, TAS/CVT/CTS, DRA, HSS, MRF and ENUM compute nodes. • End to end IMS/USP watchdog – Monitoring of VoIP, VoLTE, FirstNet and Inter-carrier registration and call failures. Troubleshoot network routing and switching failures via defect signatures including CDR trending, message flow (SIP, Diameter, RTP network protocols) analysis, KPIs and equipment alarms. Experienced user of Wireshark, Iris and Radcom protocol analyzers.• Data analysis - Review historical trends and supporting data, deriving the acceptable level of call defects (noise floor) to determine true problem impact. Experienced user of Grafana and Power BI data visualization platforms.• Incident manager - Ensure all stake holders are engaged and up to date. Facilitate troubleshooting bridges and chatrooms. Timeline scribe of incident and perform Post Incident Review after mitigation.• Project Team Lead - Team’s technical prime for AT&T’s implementation of Nokia CloudBand. Executed Operational Readiness Testing across various CNF/VNF compute nodes. Mentored team regarding tool configurations to support CloudBand. Worked with Nokia to develop and implement KPI dashboards needed by our team for real-time monitoring and troubleshooting. Used raw counters to develop new KPIs for our team.

Provide cross team collaborative solutions ensuring world-class project quality and time to market for T-Mobile and AT&T. This position requires accurate, efficient performance in the following areas:• Architectural and Engineering – Review of Construction Drawings, Structural Analysis Reports, Leasing Applications, etc., validating all Site Acquisition paperwork is correct from a construction point of view.• RF Engineering – Work closely with a wireless carrier’s RF Engineering group auditing the current cell site configurations. Report findings and make recommendations based on project objectives.• Pre-Construction General Contractor Review – Validate Scope Of Work for a particular project, making sure it is complete and correct. Review Bill Of Materials validating all material is ordered to complete the SOW. Schedule on-site review with GC to walk through SOW and BOM ensuring GC is 100% up to speed and ready for site construction.• Construction Management, GC Management – During construction, provide the GC with any help needed to get the job done right and on-time including equipment racking, cabling, configuration and integration.• Post-Construction Review and Close-Out of Project – Perform post construction audit validating job quality and cleanliness. Drive to resolution items that are non-compliant.

Ericsson Principal Engineer – Advanced Technical Support / Tier 3• Outage Recovery Lead and On-call support for VoLTE MGCF and 3G voice core. Each voice core processes millions of calls per day with 73 voice cores across the nation. Lead technical troubleshooting and recovery efforts from the most complex network problems in real time, direct the activities of technical resources from Tier-2, Labs, and equipment vendors to restore service. • Root Cause Analysis (RCA) Lead investigating follow-up activities to determine root cause, attempt problem reproduction and identify workarounds leading to long-term solutions. Identify defect signatures and define risk to the network. Manage equipment and software vendor relationships. Plan implementation of vendor fixes or design changes and monitor the rollout. • New Technology Insertion / Operational Certification developing and testing methods for insertion of new technology within AT&T’s network. Develop troubleshooting guides and provide instruction on new designs, technology and insourced work. Manage the risk of new technology introduction.• Automation of Processes decreasing the deployment times by half. Automation of ‘dangerous’ operational activities reducing human error and potential outage time. Develop Java routines to extract forensic data used to identify trends of unexpected behavior. Automation of various other routine tasks for efficiency and to minimize network risk. • Principal Engineer that mentors and guides other engineers within team. Build relationships by working together on team projects. Monitor engineer Service Level Agreement metrics and provide support as needed.IMPACT – Saved AT&T millions of dollars via project insourcing, speed to market (man-hours saved) via automation and decreased vendor support contracts; Increased workforce efficiency; Increased network reliability.

• Outage Recovery Lead and On-call support for 3G UMTS wireless core network including 3 Nortel XaCore MSCs and an HLR. Provided technical troubleshooting and leadership skills to recover from the most complex network problems in real time. • Root Cause Analysis (RCA) Leader that led investigations to determine root cause, attempted problem reproduction and found workarounds that led to long-term solutions. Identified defect signatures and defined risk to the network. Managed equipment and software vendor relationships. Planned implementation of vendor fixes or design changes and monitored the rollout. • Implemented new features such as CAMEL prepaid for home and roaming subscribers, CAMEL Personal Ring Back Tone, separation of national and international PLMNs for international barring, Local Call Only Barring, Operator Determined Barring.• Served as interface between SunCom and Nortel and provided an escalation path and mentorship to regional technicians.IMPACT – Saved SunCom hundreds of thousands of dollars via project insourcing and decreased outage time; Expedient feature implementation; increased knowledge base of regional technicians.

• Worldwide customer support for Nortel Networks GSM/UMTS voice core, GPRS packet core and GSM/UMTS RAN. • Outage Recovery Lead that provided technical troubleshooting and leadership skills to recover from the most complex network problems in real time.• Root Cause Analysis (RCA) lead that gathered and analyzed data for faults and trends. Led investigation to determine root cause, attempt problem reproduction and identify workarounds leading to long-term solutions. Identified defect signatures and define risk to the network. Represented the customer’s interests to higher levels of support including Design.• Developed product tutorials, tools and processes to aid understanding, problem isolation and data gathering.IMPACT - Tools and processes decreased outage time; Flexible asset working across product boundaries; Increased product knowledge of peers; Decreased dependency on next level support; Increased customer satisfaction by understanding the customer’s needs.

Contractor to Nortel and Lucent RF teams. Performed drive testing, data capture and analysis in Sprint PCS markets. Experienced user of MapInfo and Planet.

Support of Nortel MSCs. Worked with the Site Acquisition group during initial buildout of cell sites reviewing lease applications, construction drawings, etc.

Network integration and maintenance of iDEN TDMA cell sites.

Engineered, constructed and maintained a small RSA’s cellular network. Responsible for all MSC configurations (routing translations, announcement recordings, alarm thresholds, etc.). Order, install and commission new cell sites. Supervise electrical and tower contractors during cell site build. Maintained all switching, cell site, microwave and tower equipment.