Senior Infrastructure Engineer

Salary: £55,000 - 55,000 per year

Requirements:

• Minimum 4 years infrastructure experience, with at least 1 year in a similar senior capacity or performing senior duties within a team of engineers with a support background.
• Excellent Active Directory and associated services skills.
• Experience with a broad variety of classic infrastructure disciplines and technologies, including network, Windows Server, storage, virtualisation, security, and mail services.
• Experience of team supervision or mentoring would be an advantage.
• High level of knowledge with Office 365 suite of applications, security, and tools.
• Excellent Microsoft Exchange skills, ideally in a hybrid solution.
• Previous experience in designing and leading implementation of infrastructure solutions.
• Experience using infrastructure auto-deployment and scripting techniques such as PowerShell and Ansible.
• Experience of developing and documenting technical solutions.
• Proactive and logical approach to fault identification, troubleshooting, and problem solving.
• Working knowledge of ITIL.
• Knowledge of network technologies, including LAN/WAN components, routing, and protocols.
• Understanding of cloud computing platforms, principles, and services.
• Knowledge of zero-trust solutions, VPN, SSO setup, PIM, and MFA solutions.
• Experience with perimeter and endpoint security solutions, web access, and anti-malware configuration.
• Experience with Microsoft Windows Server OS, updating, and upgrading; Linux experience is an advantage.
• Experience with backup and recovery design and testing.
• Ability to mitigate infrastructure and operating system security vulnerabilities.
• Experience supporting Microsoft Office 365 platforms, including SharePoint, OneDrive, Teams, and Intune management.
• Experience working within a ticket management system with SLA and KPI adherence.
• Any certification or working experience supporting or implementing several of the listed infrastructure technologies would be an advantage.

Responsibilities:

• Support the Infrastructure Support Manager in delivering robust, performant, resilient, and recoverable infrastructure and systems across on-premises and Azure environments.
• Provide hands-on technical leadership within the infrastructure team, promoting technical excellence, quality, and knowledge transfer.
• Drive the deployment and management of on-premises infrastructure, ensuring appropriate monitoring, alerts, backups, and recovery plans are in place.
• Manage aspects of the Azure platform in collaboration with the cloud platform team.
• Deliver a best-of-breed third-line support function, ensuring tickets and issues are managed efficiently and within SLA.
• Stay aware of enhancements in current infrastructure solutions and technology developments that benefit the business.
• Work cross-functionally with Project, Development, Cloud Platform, and SecOps teams on new deployments and ongoing maintenance.
• Support the development of disaster recovery plans and maintain operational resilience within the infrastructure remit.
• Lead technical evaluation of infrastructure products and participate in deployment and implementation of infrastructure technologies.
• Contribute to the technical design of best-in-class infrastructure solutions, using industry best practice.
• Work with SecOps engineers to remediate vulnerabilities identified within remit.

Technologies:

• Active Directory
• Ansible
• Azure
• Cloud
• Support
• ITIL
• LAN
• Linux
• Network
• Office 365
• PowerShell
• Security
• SharePoint
• VPN
• Web
• Windows
• .NET Framework
• ASP.NET
• Confluence
• DevOps
• JIRA
• MacBook
• SQL
• System Engineer
• Terraform
• XML

More:

We are Acorn, and we are looking for a passionate Senior Infrastructure Engineer to join our hands-on, multi-disciplined technical support team within IT infrastructure support and third-line escalation. This is a permanent, full-time role based at our Liverpool City Centre HQ, with a salary of £50,000-£58,000 per annum depending on experience. The role supports a mix of on-premises and Azure infrastructure, and we work closely across teams to deliver secure, compliant, resilient systems and best-of-breed infrastructure solutions.

last updated 38 week of 2026