Senior Infrastructure Engineer

Our Hosting team delivers InterSystems’ solutions as hosted or managed services to customers worldwide, supporting business-critical and often regulated workloads that demand high levels of availability, performance, and operational reliability. The annual goal of this role is to ensure the effective, secure, and reliable operation of the Nutanix-based hosting platform that underpins customer services. The role holder will contribute to stable day-to-day operations while also supporting the ongoing evolution of the hosting platform through standardisation, automation, and continuous improvement. Success is measured by sustained service stability and availability, infrastructure performance, reduced operational risk, and the delivery of a more resilient and supportable infrastructure over the performance year. 

What’s in it for you?

• Great Bonus Scheme
• Private Medical Insurance
• Optional Enhanced Pension Scheme
• Perks and Savings on lifestyle activities
• Nuffield Health Discounts
• Gym Reimbursements (up to £600)
• Plus more!

Key Responsibilities

• Operate and maintain large-scale Nutanix-based virtual infrastructure using AHV and Prism, ensuring platforms are monitored, patched, upgraded, and optimised in line with hosting standards.
• Manage and support large estates of virtual machines running critical customer workloads, including provisioning, lifecycle management, and execution of planned changes.
• Perform day-to-day infrastructure operations across compute, storage, and virtualisation layers, working within established operational and change management processes.
• Monitor platform health and proactively support stability, performance, and availability of production environments.
• Respond to infrastructure incidents in a structured and timely manner, working collaboratively to restore service and minimise customer impact.
• Participate in a shared on-call rota, providing out-of-hours support for production platforms as part of a team-based support model.
• Contribute to root cause analysis and post-incident reviews, identifying corrective and preventative actions to reduce repeat incidents.
• Support platform improvements and technical initiatives, including standardisation, lifecycle improvements, and reduction of operational risk.
• Assist with automation and operational efficiency initiatives, helping improve consistency, repeatability, and long-term supportability.
• Work closely with other infrastructure, network, security, and application teams to deliver reliable hosted services aligned with customer and business requirements.

Experience/Qualification Required

• Strong hands-on production experience operating Nutanix platforms (AHV, Prism). – Essential 
• Experience managing and supporting large-scale virtual machine environments. – Essential 
• Solid Linux experience (RHEL or equivalent) in enterprise or hosted environments. – Essential 
• Proven troubleshooting skills across virtualisation, compute, and storage platforms. – Essential 
• Experience working within structured operational processes (incident, change, and problem management). – Essential 
• Experience supporting production infrastructure in a 24×7 or on-call environment. – Essential 
• Experience migrating workloads from VMware to Nutanix. – Preferred 
• Exposure to VMware vSphere environments. – Preferred 
• Experience with automation tooling (e.g. Ansible) and/or enterprise backup platforms. – Preferred