Wireless Network Support & Incident Management Expert

LEWIE SPEARMAN 770-***-**** **************@*****.***

Anniston, AL LinkedIn

WIRELESS NETWORK SUPPORT

NETWORK MONITORING ROAMING OPERATIONS INCIDENT & ALERT MANAGEMENT MVNO & TIER 1 CARRIER NETWORKS Wireless network support professional with 20+ years of experience in service assurance, network monitoring, and roaming operations across Tier 1 carrier and MVNO environments. Extensive background monitoring and troubleshooting SS7, Diameter, packet core, and IP-based networks (GPRS, LTE), supporting enterprise, IoT (NB-IoT, CAT-M), and consumer customers. Proven experience analyzing network alerts, incident tickets, and roaming performance using tools such as Jira, OpsGenie, Viavi, Wireshark, NetScout, and Kibana. Known for improving alert quality, resolving escalated roaming issues, and partnering with network operations and customer care teams to maintain service reliability. PROFESSIONAL OVERVIEW

SEMTECH – Anniston, AL 2024 – 2026 (COMPANY LAYOFF) SERVICE ASSURANCE ENGINEER

• Monitored and analyzed ~20 MVNO incident tickets and ~300 network alerts weekly using Jira and OpsGenie, supporting internal network nodes and customer-facing platforms.

• Utilized advanced monitoring and tracing tools across SS7, packet core, and Diameter (via Viavi) to investigate roaming and core network issues for sponsor networks.

• Produced weekly and monthly performance analyses that reduced weekly alert volume by 60% (500 to 200 per week), improving alert accuracy and incident detection.

• Audited internal tickets for quality, accuracy, and adherence to established methods and procedures (M&Ps).

• Contributed to process improvement and documentation efforts, helping standardize workflows and strengthen departmental operational practices.

EISSMANN AUTOMOTIVE – Pell City, Alabama 2023 - 2024 PRODUCTION STAFF – TESLA – INTERIOR PRE-LAUNCH

• Assisted with pre-production interior finishing processes for Tesla vehicles, following strict quality standards and process checklists to ensure launch readiness.

• Conducted detailed inspections and coordinated workflow steps to meet production timelines. AT&T MOBILITY – Atlanta, GA Remote 2008 - 2022

NETWORK MONITORING-TIER 3 PROACTIVE TEAM (2019 – 2022)

• Reconfigured outbound roaming steering percentages on a weekly basis for enterprise and consumer customers, aligning traffic routing with new market launches and renegotiated wholesale and retail rate structures.

• Implemented immediate traffic pinches on outbound roaming carriers in response to fraud events or stalled commercial negotiations, mitigating financial exposure and network risk.

• Resolved escalated roaming incidents (critical, major, and minor) impacting enterprise customers, including NB-IoT, CAT-M, and specialized device use cases across external wireless carriers.

• Supported on-call and after-hours rotations, ensuring timely monitoring, escalation, and resolution.

• Handled escalated consumer roaming issues affecting both AT&T subscribers on partner networks and partner subscribers roaming on AT&T infrastructure (domestic and international).

• Monitored and triaged roaming alarms and incident tickets through Remedy AOTS and Viavi, preventing customer- impacting issues.

• Referenced GSMA IR.21 documentation and ETSI standards to support roaming diagnostics, partner configuration validation, and issue resolution.

AREA ROAMING MANAGER – QUALITY CONTROL (2008 – 2019)

• Reviewed 100% of international outbound roaming tickets on a weekly basis, providing structured feedback to Customer Care leadership and internal Network Operations management.

• Analyzed monthly ticket volumes and resolution codes to identify trends and improvement opportunities.

• Tracked and documented technician-level quality and escalation patterns, highlighting recurring issues and opportunities for targeted coaching and process improvement.

• Compiled and reported biweekly summaries of corporate-level escalations and reverse escalations, presenting findings during cross-functional management review calls. SKILLS

Network Troubleshooting & Protocols: SS7 architecture (UMTS, GSM), SCCP third-party integration, IP network troubleshooting (GPRS, LTE), DNS, firewalls, border gateway elements, protocol analysis (S6, S1AP, user plane), roaming and subscriber traffic analysis

Monitoring, Analysis & Ticketing Tools: Wireshark (PCAP analysis), NetScout (IP traffic monitoring, S1AP/S6), Kibana

(customer-network insights), Excel reporting, Jira, Remedy, Salesforce EDUCATION

General Coursework (3.8 GPA) – Georgia Military College Moody Air Force Base, Valdosta, GA

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