Senior Network Engineer

Infoplus Technologies UK Limited; Cambridge; Hybrid; GBP 90,000 - 120,000; Full time

Job summary

Infoplus Technologies UK Limited in Cambridge is seeking a Senior Network Engineer with deep expertise in Network Source of Truth, NetBox, automation and reliability to lead enterprise data practices.

You will expand NetBox as the authoritative data model, design automated discovery, and integrate with ServiceNow CMDB/ITSM, while collaborating with Ops, Security and ITSM teams. This contract role focuses on building a strategic roadmap toward Network SRE practices and proactive monitoring.

Qualifications

• Strong experience in enterprise network data governance and NetBox as authoritative source of record.
• Hands-on with automation tooling and scripting for network operations.
• Proven track record in designing scalable network data models and integrations.

Responsibilities

• Review and improve the network data landscape, data quality and integrations.
• Develop and enhance NetBox for inventory and lifecycle management.
• Establish NetBox as the trusted source of record for assets, topology and IP addressing.
• Design automated discovery and data‑assurance capabilities.
• Integrate NetBox with ITSM/CMDB platforms, including ServiceNow.
• Automate network discovery, compliance reporting and configuration validation.
• Expand network automation using Python, Ansible, REST APIs and Terraform.

Skills

Network Source of Truth

Network automation

Python

Ansible

REST APIs

Terraform

Git / GitHub

Monitoring & Observability

Network fundamentals

SRE concepts

Tools

NetBox

Nautobot

IP Fabric

Auvik

SolarWinds

Device42

Infoblox

Job description

Senior Network Engineer

Location: Cambridge, UK

Working Model: Hybrid - 2 days per week onsite

Contract Type: Contract

Experience: 10+ years relevant experience

Role Overview

We are looking for an experienced Senior Network Engineer with strong expertise in Network Source of Truth, NetBox, network automation and network reliability .

The role will focus on establishing and maintaining NetBox as the authoritative source of record for enterprise network data , improving network inventory accuracy, automation, governance and integration with enterprise platforms such as ServiceNow .

The successful candidate will also contribute towards expanding network automation and developing a strategic roadmap towards Network SRE practices .

Key Responsibilities

• Review and improve the existing network data landscape, data quality and integrations.
• Develop and enhance NetBox for enterprise network inventory and lifecycle management.
• Establish NetBox as the trusted source of record for network assets, topology, IP addressing and metadata.
• Design and implement automated network discovery and data-assurance capabilities.
• Define and maintain NetBox data models, naming conventions, taxonomy and hierarchical structures.
• Integrate NetBox with network management and assurance platforms, including Cisco Catalyst Centre .
• Develop integrations between NetBox and ServiceNow CMDB/ITSM .
• Automate network discovery, compliance reporting, auditing and configuration validation.
• Expand network automation using Python, Ansible, REST APIs and, where applicable, Terraform.
• Develop reusable automation workflows, operational runbooks and documentation.
• Perform network device baselining and configuration validation.
• Improve network monitoring, data quality and operational reliability.
• Define KPIs, SLIs and SLOs to support Network SRE practices.
• Identify opportunities for proactive monitoring, fault prevention and self-healing automation.
• Work closely with Operations, Security, Architecture, Platform and ITSM teams.

Required Technical Skills

• Network Source of Truth / IPAM / DCIM
• Hands-on experience with one or more of:
• NetBox
• Nautobot
• IP Fabric
• Auvik
• SolarWinds
• Device42
• Infoblox
• Core Networking
• Routing & Switching
• TCP/IP
• BGP
• OSPF
• MPLS
• VLANs
• WAN/LAN
• SD-WAN
• Network Security Fundamentals
• Network Automation
• Python
• Ansible
• REST APIs
• Terraform - desirable
• PowerShell - desirable
• Git / GitHub - desirable
• Monitoring & Observability

Preferred Certifications

• Cisco CCNP / CCIE
• Juniper JNCIS / JNCIP
• AWS Advanced Networking Specialty
• Relevant NetBox, Python, automation or Infrastructure-as-Code certifications

Ideal Candidate

The ideal candidate will have strong experience in enterprise networking, NetBox/Network Source of Truth, network automation and data governance , with the ability to work across network operations, architecture, security and ITSM teams.

Experience with ServiceNow CMDB integration, Python/Ansible automation and Network SRE concepts would be highly valuable.