Network and Infrastructure Engineer

Avon Protection; Melksham; On-site; GBP 60,000 - 90,000; Full time

Job summary

Avon Protection in Melksham, United Kingdom, seeks a Senior Network and Infrastructure Engineer to design, implement, and support the company’s IT infrastructure across on‑premises and private cloud environments. You will manage Cisco-based networks, storage, and compute platforms, ensuring high availability, security, and performance while collaborating with cross‑functional IT teams.

The role requires extensive experience with Windows Server, AD, 365 integrations, virtualization, storage, and

Qualifications

• 5+ years in network and infrastructure roles, with hands-on Cisco experience.
• Strong knowledge of DNS, DHCP, IP addressing, and network segmentation.
• Experience implementing network security controls (firewalls, VPN, 802.1X/Cisco ISE).
• Proficiency with Windows Server platforms (Active Directory, Group Policy).
• Experience with Microsoft 365 integrations and hybrid identity setups.
• Solid virtualization experience (Hyper-V, VMware).
• Experience with SAN/NAS storage, replication, and performance tuning.
• Knowledge of backup and disaster recovery design (e.g., Veeam).
• Understanding patching, hardening and vulnerability management practices.
• Familiarity with ITIL service management practices.

Responsibilities

• Design, implement, and maintain network, server, and storage infrastructure.
• Support infrastructure across Cisco-based networks.
• Manage routing and switching.
• Implement and maintain network security controls (firewalls, VPN, NAC/ISE).
• Deploy and support compute platforms (physical+virtual).
• Support and maintain SAN/NAS storage and replication.
• Perform installation, configuration, and commissioning of infrastructure hardware.
• Support upgrades, migrations and refresh activities.
• Ensure patching and hardening across all platforms.
• Maintain infrastructure security posture and vulnerability remediation.
• Provide 3rd line support for infrastructure and network issues.
• Troubleshoot performance and connectivity across layers.
• Ensure high availability and disaster resilience.
• Maintain backup and DR solutions.
• Produce technical documentation and diagrams.
• Collaborate with cloud, security and app teams.
• Drive automation and continuous improvement.
• Engage with third-party vendors for delivery and support.

Skills

Cisco networking

DNS/DHCP

Network security

Windows Server

Active Directory

Microsoft 365

Virtualisation

VMware

Hyper-V

Veeam

SAN/NAS

Backup & DR

PKI

Patching & hardening

ITIL

Multisite infra

Documentation

Tools

VMware

Hyper-V

Veeam

SAN/NAS

Job description

Position: Network and Infrastructure Engineer

Location: Melksham, United Kingdom

Scope of the Function

This role sits in the EUD and Infrastructure team, which is responsible for the design, implementation and support of Avon’s IT Infrastructure. The Senior Network and Infrastructure Engineer is responsible for the operation and maintenance of systems across all sites and hosting providers. The role manages on‑premises and private cloud infrastructure, ensuring high availability, performance, and security of core IT systems while supporting strategic transformation initiatives. This position works within established standards and architectures, supporting network and infrastructure platforms and collaborating with wider IT teams and business stakeholders.

Key Responsibilities

• Design, implement, and maintain network, server, and storage infrastructure
• Support delivery of infrastructure solutions across Cisco‑based networking environments
• Manage and support routing and switching
• Implement and maintain network security controls (firewalls, VPNs, NAC / ISE where applicable)
• Deploy and support compute platforms (physical servers and virtualised platforms)
• Support and maintain enterprise storage solutions (SAN/NAS, replication, performance tuning)
• Perform installation, configuration, and commissioning of infrastructure hardware and platforms
• Support infrastructure upgrades, migrations, and refresh activities
• Ensure patching of servers, network devices, and firmware across all platforms
• Maintain infrastructure security posture through updates, hardening, and vulnerability remediation
• Provide 3rd line support for infrastructure and network issues
• Troubleshoot performance, connectivity, and system‑level issues across infrastructure layers
• Support high availability and resilience through appropriate design and configurations
• Maintain and support backup, recovery, and disaster recovery solutions
• Maintain standard builds, configurations, and deployment processes
• Monitor infrastructure health, capacity, and performance
• Produce and maintain technical documentation (network diagrams, configs, procedures)
• Work collaboratively with cloud, security, and application teams
• Contribute to automation and continuous improvement initiatives
• Operates as part of the Group‑wide IT function
• Works with IT Directors for each Strategic Business Unit (SBU)
• Supports site IT and SBU IT teams to maintain service reliability
• Collaborates across IT and business stakeholders
• Takes direction from the Director of M365, EUD and Infrastructure
• Works within a matrix IT structure
• Engages with third‑party vendors for support and service delivery
• Provides technical guidance and support to engineers and service teams across multiple locations
• Engages with third‑party vendors and partners for support, delivery, and escalation of infrastructure solutions
• Oversee the lifecycle of infrastructure assets (from planning upgrades to retiring legacy systems), and manage vendor relationships and contracts for support and new solutions

Other Responsibilities

• Operates as part of the Group‑wide IT function
• Works with IT Directors for each Strategic Business Unit (SBU)
• Supports site IT and SBU IT teams to maintain service reliability
• Collaborates across IT and business stakeholders
• Takes direction from the Director of M365, EUD and Infrastructure
• Works within a matrix IT structure
• Engages with third‑party vendors for support and service delivery
• Provides technical guidance and support to engineers and service teams across multiple locations
• Engages with third‑party vendors and partners for support, delivery, and escalation of infrastructure solutions
• Oversee the lifecycle of infrastructure assets (from planning upgrades to retiring legacy systems)
• Manage vendor relationships and contracts for support and new solutions
• Coaching and mentoring Junior team members

Background and Skills

• Cisco networking (routing, switching, VLANs, STP)
• Understanding of core network services such as DNS, DHCP, IP addressing, and network segmentation
• Good grasp of network security controls, including firewalls, VPNs, and secure access models (e.g. 802.1X/Cisco ISE)
• Proficiency with Microsoft server platforms, including Windows Server, Active Directory, and Group Policy
• Working capability in Microsoft 365 integrations, including hybrid identity, tenant‑level configuration and application permissions
• Strong capability across virtualisation platforms, including Hyper‑V, VMware, and comparable hypervisors
• Understanding of high availability and clustering design across compute and network platforms
• Solid grounding in enterprise storage technologies, including SAN/NAS, RAID, replication, and performance tuning
• Understanding of backup and disaster recovery design principles, ideally utilising Veeam
• Capability in certificate services and PKI, including certificate lifecycle and secure service integration
• Understanding of patching, system hardening, and vulnerability management practices
• Familiarity with NIST security frameworks and application of controls within infrastructure environments
• Awareness of multi‑site and global infrastructure considerations, including latency, resilience, and standardisation
• Familiarity with monitoring, alerting, and performance management tooling
• Understanding of ITIL‑aligned service management practices
• 10 years+ of working with virtualisation, Windows server and storage technologies
• 5 years+ of working with Cisco technologies, leading and managing network platforms
• 3 years+ of Microsoft Cloud experience across M365 and Azure
• Experience of working with a multi‑national business and regulated environments
• Able to develop and contribute to solution designs and implementation
• Good communication, interpersonal and presentation skills
• Self‑motivated and able to prioritise tasks and manage own time efficiently
• Proven ability to work independently or as part of a team
• Developing self, individuals and teams
• Demonstrate a Continuous Improvement mindset and traits
• Technical documentation and presentation to IT and business stakeholders