Network Architect
Posted 1 day ago by 1772096044
Negotiable
Undetermined
Hybrid
London, Greater London
Summary: The role of Network Architect focuses on enhancing a service provider network by introducing a Layer 2 wholesale capability within a Juniper-based MPLS/EVPN environment. The position requires a consultant-level architect to review existing designs and create scalable, resilient models. This engagement emphasizes architectural expertise rather than operational tasks. The role is hybrid based in London and is contract-based.
Key Responsibilities:
- Review the existing ACX/MX EVPN design
- Design a scalable and resilient L2 wholesale model
- Define traffic flow and service separation between L2 and L3 services
- Assess control-plane and MAC scaling implications
- Validate redundancy and failover behaviour (EVPN-ESI, multihoming)
- Produce High-Level and Low-Level Design documentation
- Provide a phased migration / implementation strategy
Key Skills:
- Strong Juniper MX and ACX experience
- Deep understanding of EVPN (including ESI / multihoming)
- MPLS and L2VPN (VPWS) in service provider environments
- Experience designing wholesale or carrier L2 services
- Control-plane scaling and broadcast domain design considerations
- ISP / carrier / wholesale network background
Salary (Rate): undetermined
City: London
Country: UK
Working Arrangements: hybrid
IR35 Status: undetermined
Seniority Level: undetermined
Industry: IT
Network Architect - Juniper EVPN / Wholesale L2 Design
Location: (London) - Hybrid
Contract
We are seeking an experienced Network Architect to review and evolve an established service provider network.
This is a high-impact architectural engagement focused on introducing a Layer 2 wholesale capability into an existing Juniper-based MPLS/EVPN environment.
About the Environment
Architecture consists of:
Multiple L2 supplier services
QinQ handoff terminated on Juniper ACX
LAGs stretched across ACX devices using EVPN-ESI for multihoming
L2 to L3 handoff via VPWS
L3 termination on Juniper MX using Dynamic Profiles
Tier 1 transit and private interconnects for traffic breakout
The Role
We are looking for a consultant-level architect to:
Review the existing ACX/MX EVPN design
Design a scalable and resilient L2 wholesale model
Define traffic flow and service separation between L2 and L3 services
Assess control-plane and MAC scaling implications
Validate redundancy and failover behaviour (EVPN-ESI, multihoming)
Produce High-Level and Low-Level Design documentation
Provide a phased migration / implementation strategy
This is not a BAU operations role. We have strong operational capability in-house. We require deep architectural and service provider design expertise.
Required Experience
Strong Juniper MX and ACX experience
Deep understanding of EVPN (including ESI / multihoming)
MPLS and L2VPN (VPWS) in service provider environments
Experience designing wholesale or carrier L2 services
Control-plane scaling and broadcast domain design considerations
ISP / carrier / wholesale network background
Could this potentially be of interest? Please send your CV for immediate consideration
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