Job Description
Job Title: Senior / Principal IP Networks & Security Architect
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Experience: *****+ years
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Role Overview
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We are seeking a highly experienced IP Networks & Security Architect to lead the design, evolution, and governance of large-scale service provider networks. This role is focused on advanced routing architectures, MPLS-based services, and security frameworks within mobile operator environments.
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The ideal candidate will bring deep expertise in eBGP, L3VPN, and edge security, with hands‐on experience across multi‐vendor ecosystems.
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Key Responsibilities:
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Design and architect scalable IP/MPLS networks supporting mobile core, aggregation, and edge environments.
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Develop and optimize routing strategies using eBGP, iBGP, OSPF/IS-IS, and advanced traffic engineering techniques.
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Architect and maintain MPLS services including L3VPN, L2VPN, and segment routing (preferred).
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Lead the integration of IP networks with mobile packet core (4G/5G), including Gi/SGi/N6 interfaces.
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Define and implement network security architecture, including edge firewall placement, segmentation, and policy control.
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Evaluate and integrate firewall solutions (Fortinet, Check Point, Cisco)



into service provider environments.
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Drive high availability and resiliency designs (quick convergence, redundancy models, failure domains).
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Provide technical leadership for network transformation initiatives, including virtualization and cloud integration.
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Collaborate with operations, engineering, and vendors for deployment, troubleshooting, and optimization.
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Produce high- and low-level design documentation (HLD/LLD), standards, and architectural guidelines.
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Required Skills & Experience:
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*****+ years in IP networking, with significant experience in service provider or mobile operator environments.
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Strong expertise in:
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eBGP (multi-homing, route policies, scaling, convergence tuning)
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MPLS (L3VPN, LDP, RSVP-TE, Segment Routing preferred)
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Core routing protocols (IS-IS, OSPF)
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Deep understanding of mobile network architectures (4G EPC, 5G Core) and IP transport integration.
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Proven experience with edge security design and firewall technologies.
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Hands‐on experience with at least two of the following vendors:
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📌 Senior Ip Network Security Architect (New South Wales)
🏢 CareCone Group
📍 New South Wales