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Role Summary
Own lifecycle operations for 4G/5G Enterprise Packet Core nodes. Also specialize in Nokia SR OS-based IP/MPLS networks and NFM-P operations: including audits, remediation, vendor coordination, and risk-controlled upgrades. Ensure stability, security, and performance through automation, observability, and disciplined change control.
- Provides technical concurrence and sign off for high profile and/or critical network changes on major BT core platforms and/or customer bids; accountable for managing technical risk for major platforms.
- Provides consultancy on network designs for multiple platforms and/or solutions and/or customers
- Develops design patterns across multiple domains.
- Responsible for establishing design best practice within a unit.
- Responsible for estimating the time and type of resource needed to support deliverables for complex, high impact and high value projects.
- Drives Right First-Time solutions and leads lessons learned
- Proposes technical strategy to network platforms and/or customer solutions factoring in high impact and high risk as appropriate.
- Drives efficiency and scalability through the re-use of network designs and accountable for the design whilst it is deployed across the overall network platform and/or customer solution.
- Potentially leads a large matrix team (virtual) and is accountable for complex network development using innovative approaches to design (including cross-portfolio solutions). Leverages technical resource/s as required to deliver the solution.
- Decides on design scope and design to leading edge high impact and high-risk network platforms and/or customer solutions
- Audit & Install Base: inventory Packet Core Nodes, licenses, versions, dependencies
- Remediation: resolve routing/subscriber database/QoS issues, security baselines; troubleshoot EPC/5GC signaling/session problems and database replication
- Lifecycle Upgrades: plan/execute software upgrades (schema migrations, config freezes, interop testing) from lab → pilot → production
- Audit & Install Base: inventory Nokia SR OS devices (7750/7705), releases, line cards, license keys, HA, and NFM-P components
- Service Audit: document L2/L3 VPNs, VPLS/EVPN, QoS policies, OAM, BFD, telemetry/alarms; validate compliance
- Remediation: resolve routing instabilities, LDP/RSVP/SR issues, QoS defects, MTU mismatches; fix HA/ISSU configurations
- Lifecycle Upgrades: plan/perform Nokia SR OS and NFM-P upgrades/patches, using ISSU/hitless strategies where supported; manage pre/post checks and rollback
- Scripting & Automation: automate audits/compliance and mass changes via MD-CLI scripting, NETCONF/gNMI, Python/Ansible; integrate with NFM-P APIs
- Risk Management: craft traffic reroute plans, staged upgrades, failover testing, and thorough rollback procedures
- Vendor Engagement: work with Cisco, NetNumber and Nokia teams on constraints, field notices and recommended upgrade paths; complete impact assessments
- Scripting & Automation: build Ansible/Python playbooks for config validation, backups, compliance, health checks, and API-based changes (NETCONF/RESTCONF)
- Risk Management: define change windows, traffic steering/bypass, rollback/fallback routing; maintain risk registers and detailed MOPs
- Security & Compliance: lifecycle, segmentation, logging; track vulnerabilities and apply timely remediations
- Observability: maintain dashboards/alerts (latency, loss, success rates) and baseline KPIs for core interfaces
- Documentation & Recommendations: deliver execution plans, risk assessments, impact analyses, and optimization recommendations
- Decides on network models for design testing.
- Decides on approach to resolving customer affected issues to leading edge high impact and high-risk network platforms and/or customer solutions, as appropriate.
- Resolves in-life issues to high risk and high impact network platforms and/or customer solutions, as appropriate
- Decides how to re-use network designs.
- Decides on implementation approaches of technology related transformation activity.
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