Senior Network Engineer and NOC Specialist
Resume:
GARY R. SEVIVAS Network/Technical Operations Engineer Telecommunication Engineer
• Oak Island, NC 28465 • ********@*****.*** • 571-***-**** • [LinkedIn]
SENIOR NETWORK ENGINEER
Innovative and results-driven Senior Network Engineer with over two decades of experience designing, implementing, and managing enterprise-grade network infrastructures. Adept at troubleshooting, optimizing network performance, and ensuring seamless operations for mission-critical environments. Expertise in Cisco and Juniper routers, network security, and high-availability solutions. Skilled in leading cross-functional teams, executing complex network deployments, and providing top-tier support to global clients.
TECHNICAL SKILLS & EXPERTISE
Networking:
WAN/LAN, BGP, OSPF, MPLS, VPN, Ethernet, Frame Relay, ATM
Security & Compliance:
Firewall Management, Network Security Best Practices, Access Controls
Hardware & Software:
Cisco & Juniper Routers/Switches,
Foundry FSW, Lucent B-STDX 9000
Monitoring & Troubleshooting:
Netcool, Remedy, REACT, Core, NTM,
Network Diagnostics
Performance Optimization:
Network Monitoring, Root Cause Analysis,
SLA Compliance
Project Management:
Network Deployments, Infrastructure Upgrades, Vendor Coordination
Operating Systems:
Windows, Linux, UNIX
Soft Skills:
Leadership, Client Management, Technical Documentation, Cross-Team Collaboration
PROFESSIONAL EXPERIENCE
Senior NOC Technician Tier-3 Feb 2013 – Present
AT&T, Oakton, VA
Lead troubleshooting and resolution of complex network failures, ensuring minimal downtime.
Monitor and manage enterprise networks, swiftly identifying and mitigating anomalies.
Provide Tier-3 technical support for WAN/LAN infrastructures and network security incidents.
Interface directly with clients, offering expert guidance and support on network-related issues.
Perform root cause analysis to prevent recurring outages and improve system stability.
Manage vendor relationships and escalate issues for prompt resolution.
Oversee performance monitoring tools and network diagnostics to optimize efficiency.
Review and execute action plans for network changes to ensure seamless transitions.
Implement security best practices to safeguard enterprise data and network integrity.
Support and troubleshoot Juniper and Cisco routing environments in high-availability enterprise networks.
Assist with firewall policy troubleshooting, access rule validation, and network security escalations impacting production services.
Conducted end-to-end troubleshooting for Juniper & Cisco networks, including VPNs, BGP, static routing, ACLs, and firewall rule/policy impacts.
Senior Operations Technician 2007 – Feb 2013
QWEST/CENTURYLINK, Arlington, VA
Provided expert-level support for T1, T3, DS0, OC, and Ethernet lines, ensuring reliability.
Configured and optimized Cisco and Juniper routers to maintain peak network performance.
Managed network performance tools, proactively identifying and resolving connectivity issues.
Performed physical and logical troubleshooting to enhance overall service delivery.
Partnered with clients to analyse and optimize their network infrastructure.
Collaborated with internal teams to enforce security policies and best practices.
Led service restoration efforts during major network incidents.
Ensured compliance with corporate and regulatory network standards.
Conducted end-to-end troubleshooting for Juniper & Cisco networks, including VPNs, BGP, static routing, ACLs, and firewall rule/policy impacts.
Senior Quality Standards Inspector 2005 – 2007
K. HOVNANIAN HOMES, Chantilly, VA
Conducted high-level inspections at all phases of the building process to ensure quality control.
Developed and implemented standardized inspection processes across seven states.
Trained subcontractors and superintendents to enhance quality and compliance.
Provided weekly, monthly, and quarterly reports to executive leadership on defect analysis.
Led initiatives to bridge communication gaps between architecture, production, and operations.
Established best practices that minimized defects and improved overall efficiency.
Spearheaded root cause analysis efforts to drive continuous process improvements.
Ensured all inspections adhered to federal and state regulations.
Served as a key liaison between leadership and field operations to maintain quality consistency.
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• Oak Island, NC 28465 • ********@*****.*** • 571-***-**** • [LinkedIn]
Provisioner Specialist II 2003 – 2005
SPRINT, Reston, VA
Provisioned DS1 and DS0 circuit orders for Sprint Business Customers.
Managed the creation and submission of ASRs to Local Exchange Carriers (LECs).
Coordinated FOC dates and maintained communication with LECs to ensure timely installations.
Built and maintained backbone facilities for network connectivity.
Ensured compliance with carrier standards for provisioning and order management.
Acted as a key point of contact between Sprint and its external network partners.
Resolved provisioning discrepancies and escalated issues to senior engineers.
Maintained thorough documentation of all provisioning processes.
Collaborated with operations teams to streamline network deployment procedures.
Frame Relay/ATM Network Operations Tier III 2000 – 2003
QWEST, Arlington, VA
Monitored and analyzed WAN/LAN network performance to detect and resolve faults.
Managed large-scale Frame Relay and ATM networks with high reliability.
Provided hands-on troubleshooting for Lucent B-STDX, CBX, and GX nodes.
Conducted root cause analysis for recurring network issues to enhance uptime.
Developed technical documentation and training materials for Tier II technicians.
Led major network upgrades and migrations with minimal disruption.
Assisted in disaster recovery planning and execution for mission-critical networks.
Technical Consultant 1999 – 2000
Adelphia Solutions – Tysons Corner, VA
Provided pre- and post-sales technical support for data communication, voice, and internet services.
Assisted in the design and implementation of enterprise network solutions for customers.
Researched and recommended internetworking technologies for optimized connectivity.
Responded to Requests for Proposal (RFPs) with tailored network design recommendations.
Conducted customer network assessments to determine infrastructure needs.
Delivered technical presentations to clients, highlighting network performance solutions.
Advised sales teams on network hardware and service offerings for improved client engagement.
Assisted in the integration of MPLS, VPN, and Frame Relay solutions.
Managed customer expectations by providing detailed network performance analysis.
Network Install Engineer (Level 3) 1997 – 1999
MCI/WorldCom – Reston, VA
Configured and installed network circuits, including T-1, DS0, Frame Relay, and Digital Data lines.
Utilized network diagnostic tools such as ITS, ETR, Netpro, and Telnet for troubleshooting.
Collaborated with LECs and field technicians to resolve circuit continuity issues.
Managed network migrations and "hot-cut" implementations with minimal downtime.
Supported NASDAQ and other high-profile clients in delicate application testing.
Ensured compliance with provisioning standards through rigorous pre-verification procedures.
Network Technician 1996 – 1997
American Systems Corporation – Chantilly, VA
Installed, configured & supported routers, hubs, and switches for AT&T WorldNet network expansion.
Conducted fiber optic cable fabrication and installation, ensuring high-performance connectivity.
Maintained and updated network diagrams and configuration documents for accuracy.
Installed racks, conduits, and power supplies for network infrastructure.
Assisted in the implementation of network security protocols to safeguard data transmission.
Supported troubleshooting and maintenance efforts for enterprise network systems.
EDUCATION & CERTIFICATIONS
Associate of Science in Computer Information Systems
Springfield Technical Community College
Certifications:
CompTIA Network+
CompTIA A+
CompTIA I-Net+
CIW Professional
SECURITY CLEARANCE
Interim Suitability by the FAA
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