Network Service Delivery Engineer

National Energy System Operator

. Define and govern NESO’s overarching network architecture across LAN, WAN/SD-WAN, cloud platforms, and data centre environments .

Posted 9/15/2026full-timeWokingham • United KingdomMid-LevelSenior💰 £60,000 - £70,000 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in designing and governing complex network architectures across LAN, WAN, cloud platforms, and data centers, with a strong focus on network security, automation, and compliance. Proficient in implementing Infrastructure as Code and Network DevOps principles to enhance operational efficiency and resilience.

Highest-signal resume keywords

Network EngineeringBGP, OSPF, VXLAN, MPLS, TCP/IPAWS/Azure NetworkingNetwork Automation, Orchestration, Infrastructure as CodeCisco CCNP Enterprise Certification

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Network Security ArchitectureNetwork SegmentationZero TrustSD-WAN TechnologiesNetwork Monitoring ToolsIPAM ToolsCloud Security ArchitecturesAutomated Device ProvisioningArchitectural Diagram CreationWireless Deployment Optimization

Soft Skills

Technical LeadershipCollaborationMentoring

Tools & Technologies

Cisco Routers and SwitchesPalo Alto FirewallsFortinet FirewallsAnsibleTerraformGitOpsREST APIsVisioLucidAIOps

Certifications & Qualifications

Cisco CCNP EnterpriseCisco CCDEAruba Certified Design ExpertPCNSE/FCSS

Industry Keywords

Network ArchitectureCloud NetworkingData Centre EnvironmentsITILAgileCompliance ReportingNISCAFISO27001DDoS Protection

Tech Stack

Tools & technologies

AnsibleAWSAzureCloudDNSFirewallsPythonTCP/IPTerraform

About the role

Key responsibilities & impact

Define and govern NESO’s overarching network architecture across LAN, WAN/SD-WAN, cloud platforms, and data centre environments
Translate business objectives into network designs, architectural standards, roadmaps, and best practices
Architect scalable, automated, secure, resilient network solutions
Collaborate with cloud, infrastructure, application teams, and external partners across hybrid and cloud environments
Drive adoption of Network DevOps and Infrastructure as Code principles
Own end-to-end network security architecture across on-premises, cloud, and hybrid environments
Design, document, and govern network segmentation, Zero Trust, firewall, and secure connectivity strategies
Develop and maintain a 12–24 month network security technology roadmap
Define, publish, and enforce enterprise-wide network security standards and conduct architectural reviews
Act as the highest escalation point for complex network security incidents and design permanent root-cause solutions
Research emerging threats, vulnerabilities, and industry trends and recommend architectural innovations
Design and review cloud security architectures
Mentor engineering and operations teams and provide technical leadership
Serve as a technical authority for stakeholders and senior management
Support automation, observability, predictive analysis, compliance reporting, wireless architecture, and self-healing network capabilities

Requirements

What you’ll need

Significant demonstrable experience in network engineering, including extensive hands-on experience in a dedicated Network Principal or Lead role designing global, enterprise-scale networks
Expert-level knowledge of BGP, OSPF, VXLAN, MPLS, TCP/IP, UDP, DNS, and DHCP
Advanced knowledge of Cisco routers, switches and WiFi, firewalls, F5/other load balancers, and SD-WAN technologies
Strong understanding of AWS/Azure networking, including VPCs, Transit Gateway, PrivateLink, Direct Connect, Security Groups, NAT, and Cloud WAN
Mastery of network monitoring, observability, and IPAM tools at scale
Expert knowledge of enterprise LAN, WAN, SD-WAN, data centre, Internet Edge, cloud networking, and network security architectures
Deep understanding of network segmentation, Zero Trust, SDN, micro-segmentation, and secure service access
Experience designing resilient architectures across multiple data centres, cloud platforms, and critical national infrastructure environments
Experience designing resilient internet connectivity, including dual ISP connectivity, provider-independent addressing, DDoS protection, and high availability networking
Experience with network automation, orchestration, Infrastructure as Code, Python, Ansible, Terraform, GitOps, REST APIs, NETCONF, and YAML
Experience implementing automated device provisioning, configuration management, compliance verification, policy deployment, security remediation, certificate management, software lifecycle management, capacity reporting, and service health monitoring
Ability to create architectural diagrams using Visio/Lucid and presentations for engineering teams, peers, and senior management
Deep understanding of ITIL concepts within an Agile, process-driven environment
Experience integrating network infrastructure into CI/CD pipelines
Experience establishing self-service operational capabilities through automation and orchestration platforms
Experience leveraging AIOps, machine learning, telemetry, flow analytics, packet analysis, predictive analysis, and closed-loop remediation
Experience implementing automated compliance reporting and governance controls supporting NIS, CAF, ISO27001, and audit requirements
Expert understanding of Wi-Fi 5, Wi-Fi 6, Wi-Fi 6E, and Wi-Fi 7
Experience designing, governing, and optimising large-scale wireless deployments
Understanding of RF design and optimisation, wireless security, NAC integration, client roaming, location services, spectrum management, and high-density deployments
Experience evaluating and implementing self-healing network technologies and AI-assisted operational capabilities
Experience with Cisco routers and switches, Palo Alto and Fortinet firewalls
Cisco CCNP Enterprise certification
Cisco CCDE highly desirable, not essential
Aruba Certified Design Expert, PCNSE/FCSS, cloud networking certification, and network automation qualification desirable

Benefits

Comp & perks

Bonus based on company performance
26 days annual leave as standard
Competitive contributory pension scheme with double matching up to a maximum company contribution of 12%
Annual enrollment to NESO Savings Plan with 50% matching contribution on monthly savings of £20–£500
Flexible Bank Holidays and Holiday Trading
Additional Birthday Day Off
Cycle to Work Scheme
Retail and Gym Discounts
Private Medical Insurance
Critical Illness Insurance
Personal Accident Insurance
Flexible working arrangements
Hybrid working from office and home