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Senior L4 Network Engineer/Architect – MPLS Network Engineering

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NTT DATA

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Location:
United States of America , Los Angeles

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Category:
IT - Software Development

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Contract Type:
Not provided

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Salary:

160000.00 - 190000.00 USD / Year
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Job Description:

We are seeking a Senior L4 Network Engineer/Architect to lead the design and delivery of carrier-grade MPLS networks integrated with fiber and DWDM ring architectures for large-scale, mission-critical environments. This role will define architecture direction, drive complex deployments across geographically diverse venues, and mentor engineering teams while ensuring compliance with stringent SLAs and security standards. The ideal candidate combines deep expertise in MPLS Layer 2/3 VPNs, traffic engineering, and optical transport technologies with hands-on experience in Cisco routing platforms, QoS, and network resiliency.

Job Responsibility:

  • Architect MPLS Core and Edge Solutions: Design MPLS-based WAN services supporting IP-VPN, L2VPN, and multicast over fiber and DWDM rings
  • ensure compliance with SLA-driven latency, jitter, and packet loss requirements
  • Plan Optical Transport Integration: Engineer DWDM ring topologies for high-capacity backbone connectivity
  • define optical budgets, protection schemes, and diverse path strategies for dark fiber deployments
  • Implement High Availability & Diversity: Design redundant ingress/egress paths, dual-homed PoPs, and geographically diverse fiber routes to meet 99.995% uptime targets
  • Traffic Engineering & QoS: Apply MPLS TE, RSVP-TE, and hierarchical QoS to optimize bandwidth allocation across multiple venues and critical applications
  • Security & Segmentation: Integrate MPLS VPN segmentation with Zero Trust principles
  • enforce encryption (MACsec/IPsec) and compliance with FCC and cybersecurity standards
  • Performance Testing & SLA Assurance: Develop KPIs, conduct end-to-end load testing, and validate optical and MPLS performance using OTDR, iPerf, and ThousandEyes
  • Automation & Orchestration: Utilize Cisco IOS-XE programmability, Ansible, and API-driven workflows for zero-touch provisioning and lifecycle management
  • Documentation & Governance: Produce HLD/LLD, as-built diagrams, fiber route maps, and compliance artifacts
  • maintain iterative design updates throughout project lifecycle
  • Stakeholder Collaboration: Work closely with service providers, fiber partners, and security teams to ensure seamless integration of MPLS and optical transport layers

Requirements:

  • Active CCIE (Enterprise Infrastructure or Service Provider track strongly preferred)
  • 10+ years in carrier-grade WAN engineering, including 5+ years MPLS architecture and deployment experience
  • Proven expertise in MPLS L2/L3 VPN, traffic engineering, and QoS strategies
  • Strong knowledge of optical transport technologies (DWDM, dark fiber design, OTDR testing)
  • Hands-on experience with Cisco Catalyst 8500/ASR platforms, IOS-XE, and network automation tools
  • Familiarity with BGP, OSPF, IS-IS, and advanced routing policy design for large-scale networks
  • Bachelor's degree in Computer Science or Information Technology
  • Must reside in the Los Angeles metro area
  • Applicants must be legally authorized to work in the United States at the time of application and must not require sponsorship for employment visa status now or in the future

Nice to have:

  • Experience with DWDM system design, optical power budgeting, and fiber route diversity planning
  • Knowledge of DDoS mitigation, cybersecurity hardening, and integration with SOC platforms
  • Exposure to SD-WAN, cloud connectivity, and hybrid MPLS/Internet architectures
What we offer:
  • medical, dental, and vision insurance
  • flexible spending or health savings account
  • life, and AD&D insurance
  • short-and long-term disability coverage
  • paid time off
  • employee assistance
  • participation in a 401k program with company match
  • bonus

Additional Information:

Job Posted:
January 26, 2026

Employment Type:
Fulltime
Work Type:
On-site work
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