Role: Senior Infrastructure Engineer
Location: Abingdon, Oxfordshire
Salary: Up to £55,000 + performance-related bonus
Type: On-site, Permanent
Join a well-established IT solutions provider with over 30 years’ experience supporting 400+ client sites nationwide. We’re looking for a customer-focused Senior IT Engineer with strong networking expertise to join the growing team.
The Role
You’ll lead and support networking projects, manage infrastructure, and provide remote and on-site support. You’ll work closely with customers and internal teams to deliver secure, scalable, and high-quality IT solutions.
Key Responsibilities
*Design, implement, and support secure, scalable network solutions across multi-site customer environments.
*Lead the delivery of network and core infrastructure projects, including new installations, upgrades, and migrations.
*Manage and maintain on-prem and cloud infrastructure, ensuring high availability, performance, and security.
*Provide senior-level support for routing, switching, firewalls, VPNs, and WAN connectivity.
*Administer and support Windows Server environments, virtualised platforms (Hyper-V), and associated services.
*Support and optimise Microsoft cloud technologies, including Azure, Azure AD, Office 365, and Intune.
*Monitor infrastructure performance, capacity, and security; proactively identify risks and improvement opportunities.
*Implement and maintain security policies, patching, firmware updates, and disaster recovery solutions.
*Act as an escalation point for complex technical issues, providing remote and on-site support where required.
*Produce and maintain high-quality technical documentation, including network diagrams, configurations, and procedures.
*Work closely with senior management and other technical teams to define standards, policies, and best practices.
*Provide technical guidance, mentoring, and oversight to junior engineers and field teams.
Key Skills & Experience
*4-5 years in a similar senior IT/networking role
*Cisco routers & switches
*TCP/IP networking, firewalls (Fortinet), and IT security
*Windows Server (2016/2019/2022), Hyper-V
*Active Directory & Azure AD
*Microsoft Azure, Office 365, Intune
*Windows 10/11 & Apple device support (MDM/Meraki)
*Backup & disaster recovery solutions
*Strong communication and customer-facing skills
*SQL Server experience beneficial
What We Offer
*Company Car
*Company pension
*Private healthcare & group life cover
*Flexible working schedule
*Employee discounts
*Profit-share eligibility after 12 months