Justin Rivera
North Miami Beach,USA
Summary
Dynamic network engineering leader with a proven track record at Liberty Networks, excelling in routing protocols and strategic capacity planning. Expert in driving high-performance IP/MPLS solutions while fostering cross-functional collaboration. Renowned for optimizing network resilience and enhancing operational efficiency, delivering robust solutions that align with business growth objectives.
Overview
17
17
years of professional experience
Work History
Manager, IP Transport Core Network Engineering & Build
Liberty Networks
North Miami Beach, FL
08.2024 - Current
- Achieved enhanced reliability and scalability of Liberty Networks' core and LATAM infrastructure through effective engineering operations oversight.
- Directed core network initiatives, guaranteeing compliance with SLAs and QoS standards for optimal performance.
- Executed rapid root cause analysis on escalated incidents to restore service integrity rapidly.
- Formulated engineering guidelines that boosted operational efficiency through innovative automation frameworks.
- Utilized advanced analytics for KPI tracking, capacity forecasting, and immediate anomaly detection.
- Adjusted network configurations to improve resilience and lower latency across systems significantly.
- Oversaw proactive maintenance schedules for critical infrastructure with a focus on minimizing downtime.
- Coordinated with cybersecurity teams to ensure comprehensive security against network threats.
Senior IP Network Engineer Manager
C&W Networks, a Liberty Global Company
North Miami Beach, FL
05.2016 - 07.2024
- Developed scalable IP/MPLS and IP Transit solutions for LATAM and wholesale markets within a multivendor framework.
- Directed capacity planning efforts to ensure compliance with SLA and KPI benchmarks for all customer segments.
- Engineered advanced services such as L2VPN, L3VPN, and NG-MVPN multicast deployments to meet evolving needs.
- Oversaw successful integration of new networks into IP/MPLS backbone; ensured migration was seamless with no service disruption.
- Championed strategic projects including market expansions and Metro/Access network upgrades across LATAM territories.
- Acted as principal advisor on network architecture best practices, fostering collaboration with vendors and partners.
- Conducted traffic analysis to identify future capacity requirements, leading enhancement proposals that support growth goals.
- Maintained detailed documentation of network diagrams and monitoring systems to uphold infrastructure integrity.
Associate IP Network Engineer Manager
Cable & Wireless Communications
North Miami Beach, FL
01.2008 - 04.2016
- Directed design, configuration, implementation, and support of IP/MPLS backbone across 26+ countries throughout Caribbean, LATAM, and North America.
- Led engineering team providing continuous L3 support for BGP, OSPF, ISIS, MPLS, VRF, and IPsec VPN services.
- Executed provisioning and maintenance for Cisco/Juniper devices along with virtualization platforms like VMware.
- Managed critical Linux services including DNS (BIND) and monitoring systems such as Cacti and MRTG.
- Initiated MEF Carrier Ethernet certification processes to meet global standards successfully during audits.
- Optimized transit paths by coordinating with upstream providers for improved routing policies.
- Developed strategies to counter large-scale DDoS attacks while collaborating with internal security teams.
- Compiled thorough network documentation including Visio diagrams and root cause analysis to support incident response.
Senior Network Engineer Project Manager
Siemens Business Services
Boca Raton, FL
- Supported deployment of Cisco/Enterasys networks exceeding 100 devices using advanced routing technologies.
- Implemented comprehensive firewall security with PIX to safeguard network integrity.
Manager & Co-Founder
IT TEK Consulting, Inc.
Coral Springs, FL
- Directed end-to-end LAN/WAN design and deployment for SMBs across the USA, Canada, LATAM, and Europe.
- Managed relationships with Tier 1 providers including AT&T, Level 3, and MCI.
- Delivered multi-vendor solutions emphasizing strong client-focused execution.
Director of Network Systems
GO-International
Coral Springs, FL
- Oversaw full-cycle design and management of enterprise network systems, facilitating Tier 1 ISP integrations and multi-location connectivity.
Senior Network Engineer
Promero, Inc.
Pompano Beach, FL
- Delivered full-stack LAN/WAN and security support for over 200 call center agents.
- Led integration projects for Windows AD, Exchange, and VoIP systems.
Senior Consultant
Lucent Technologies WSC
Philadelphia, PA
- Delivered advanced IP, TV, and VoIP solutions for Comcast and Adelphia.
- Designed Powerlink broadband deployment strategies to enhance service delivery.
- Managed firewall and VPN infrastructure using IPSec and Cisco Altiga for SmithKline Beecham.
- Oversaw global WAN optimization initiatives, ensuring efficient network performance.
Senior Network Engineer
DuPont Pharmaceuticals
Wilmington, DE
- Spearheaded Cisco WAN upgrades across over 30 global sites, enhancing network efficiency.
- Led Frame Relay migrations, optimizing connectivity for 5,000+ users.
- Directed 24/7 network operations to ensure uninterrupted service delivery.
- Acted as project lead for multi-site infrastructure builds in North America and Europe.
Education
Computer Science & Telecommunication Engineering -
University of Puerto Rico
Arecibo, PRSkills
- Routing and switching: BGP, OSPF, ISIS, MPLS L2VPN/L3VPN, VPLS, QoS
- Hardware: Cisco (CAT, ME, ASR NCS), Juniper (MX, T, M, ACX, EX, SRX)
- Management and traffic forecasting: Creanord, Zabbix, Kentik, Grafana
- Security: Arbor Peakflow, Checkpoint, Juniper SRX, Cisco PIX
- Protocols: LACP, E-LINE, E-LAN, E-TREE, MBGP, static routing
- Operating systems and tools: Linux, UNIX, VMware ESXi, Syslog, Cacti, IPPLAN, HP OpenView, RANCID
- Testing and monitoring: IPERF, Arbor, JDSU, Accedian, WhatsUp Gold
Formal Technical Training
- Cisco BGP, OSPF, ICRC, ACRC, CLSC, CVOICE, Security, VoIP
- Juniper: MPLS, Security, Service Provider Routing, Enterprise Switching, CoS, SRX, IPv6
- Arbor Networks (Peakflow, TMS, DDoS Mitigation)
- Lucent ATM, VoIP, Ascend CBX 500, BSTDX
- Solaris Admin, VMware Server, Network Associates Sniffer, Gauntlet Firewall
Technical Certifications
- Juniper Networks: JNCIA-SP, JNCIS-SP, JNCIP-SP
- MEF Carrier Ethernet 1.0 / 2.0 / 3.0 Certified
References
References available upon request.
Timeline
Manager, IP Transport Core Network Engineering & Build
Liberty Networks
08.2024 - Current
Senior IP Network Engineer Manager
C&W Networks, a Liberty Global Company
05.2016 - 07.2024
Associate IP Network Engineer Manager
Cable & Wireless Communications
01.2008 - 04.2016
Senior Network Engineer Project Manager
Siemens Business Services
Manager & Co-Founder
IT TEK Consulting, Inc.
Director of Network Systems
GO-International
Senior Network Engineer
Promero, Inc.
Senior Consultant
Lucent Technologies WSC
Senior Network Engineer
DuPont Pharmaceuticals
Computer Science & Telecommunication Engineering -
University of Puerto Rico
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