Senior Infrastructure Engineer

Role: Senior Infrastructure EngineerLocation: Abingdon, OxfordshireSalary: Up to £57,000 + performance-related bonusType: On-site, Permanent

This is a brand new opportunity to 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

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• Design, implement, and support secure, scalable network solutions across multi-site customer environments.
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• Lead the delivery of network and core infrastructure projects, including new installations, upgrades, and migrations.
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• Manage and maintain on-prem and cloud infrastructure, ensuring high availability, performance, and security.
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• Provide senior-level support for routing, switching, firewalls, VPNs, and WAN connectivity.
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• Administer and support Windows Server environments, virtualised platforms (Hyper-V), and associated services.
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• Support and optimise Microsoft cloud technologies, including Azure, Azure AD, Office 365, and Intune.
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• Monitor infrastructure performance, capacity, and security; proactively identify risks and improvement opportunities.
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• Implement and maintain security policies, patching, firmware updates, and disaster recovery solutions.
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• Act as an escalation point for complex technical issues, providing remote and on-site support where required.
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• Produce and maintain high-quality technical documentation, including network diagrams, configurations, and procedures.
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• Work closely with senior management and other technical teams to define standards, policies, and best practices.
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• Provide technical guidance, mentoring, and oversight to junior engineers and field teams.
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Key Skills & Experience

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• 4-5 years in a similar senior IT/networking role
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• Cisco routers & switches
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• TCP/IP networking, firewalls (Fortinet), and IT security
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• Windows Server (2016/2019/2022), Hyper-V
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• Active Directory & Azure AD
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• Microsoft Azure, Office 365, Intune
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• Windows 10/11 & Apple device support (MDM/Meraki)
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• Backup & disaster recovery solutions
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• Strong communication and customer-facing skills
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• SQL Server experience beneficial
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What We Offer

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• Company Car
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• Company pension
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• Private healthcare & group life cover
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• Flexible working schedule
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• Employee discounts
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• Profit-share eligibility after 12 months
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