Marcus T. Delgado

Profile

Senior Network Engineer with 9 years designing and hardening multi-site enterprise and ISP-grade networks across financial services and SaaS verticals. Deep expertise in BGP/OSPF routing, SD-WAN deployment, and zero-trust network segmentation. Reduced mean time to resolution by 41% at current employer and led a data-center migration that eliminated $280K in annual co-location costs.

Work Experience

Senior Network EngineerMar 2020 - Present

Vortex Cloud Solutions, Austin, TX

Architected and deployed a Cisco SD-WAN fabric across 34 branch sites, cutting WAN circuit costs by 28% and improving application latency by 35% for 4,200 end users.
Led BGP route-policy redesign that eliminated 11 hours of unplanned downtime annually and reduced prefix-table bloat by 62% across two upstream ISP peering sessions.
Built automated network-health dashboards in Grafana fed by SNMP/NetFlow collectors, decreasing mean time to resolution from 54 minutes to 32 minutes across a 6-person NOC team.

Network Engineer IIJun 2017 - Feb 2020

Pinnacle Financial Group, Dallas, TX

Designed a dual-stack IPv4/IPv6 campus network for three new office builds totaling 1,800 seats, delivered 3 weeks ahead of schedule and $45K under budget.
Deployed Palo Alto PA-5220 next-gen firewalls with Panorama management, reducing firewall rule-set complexity by 47% and achieving PCI-DSS compliance across all cardholder-data segments.
Migrated 120 Cisco Catalyst 3750 switches to Catalyst 9300 series during a rolling refresh, achieving 99.97% uptime throughout a 6-month cutover window.

Network Engineer IAug 2015 - May 2017

Streamline ISP, San Antonio, TX

Provisioned and maintained MPLS VPN services for 38 enterprise customers, sustaining a 99.94% monthly SLA and earning a 4.8/5 average customer-satisfaction score.
Configured OSPF area hierarchies and route redistribution across a 14-node backbone, reducing convergence time from 8 seconds to under 1.2 seconds after topology changes.
Wrote Python scripts to automate interface-configuration backups via NAPALM, cutting manual backup time by 90% and ensuring 100% configuration-version coverage across 200+ devices.

Skills

Cisco IOS/IOS-XE/NX-OS · BGP, OSPF, EIGRP, MPLS · Cisco SD-WAN (Viptela) · Palo Alto NGFW & Panorama · Python / NAPALM / Ansible network automation · Wireshark, NetFlow, SNMP monitoring · CCNP Enterprise (certified 2021) · Zero-trust segmentation & micro-perimeters · Grafana / InfluxDB / SolarWinds NPM

Profile

Work Experience

Education

Skills

Links