Senior Infrastructure Engineer (M365) (Ref 14.SO)


  • Competitive Salary
  • Full Time

What you’ll be doing:

To support ongoing business expansion, we are looking for someone to join our Service Operations team with experience in actively managing and troubleshooting a range of technologies in an enterprise environment.  This role is intended take ownership of the Microsoft areas of technology, especially those which form part of the M365 offering, and to act as an escalation point for the wider support team. A level of independence and an experience in mentoring others would be beneficial to augment the position.  The responsibilities of the team are far-reaching, so a level of wider technology experience is also highly desirable to enhance this role.

This position is in our Service Operations team, which provides support to a wide range of Managed Service contracts utilising the ITIL framework. The team are based at our Shrivenham site, with occasional travel to other sites to support project requirements.


  • Department: Service Operations & Technical Support
  • Type: Full Time
  • Salary: Competitive
  • Routine duties include but are not limited to:

    • Act as a technical lead within the team for one or more technologies, mentoring others or creating knowledge items where appropriate.
    • Support and troubleshooting of a range of technologies across the whole stack – server OS (Windows/Linux), networks, storage etc.
    • Provide a point of escalation for day-to-day support issues.
    • Participate in transition of new products and services on behalf of the Service Operations teams, both to define support interests/requirements early on and to disseminate knowledge across the teams when appropriate.
    • Investigating opportunities to improve both effectiveness and efficiency, including promulgation amongst the broader team.
    • Participate in project work on new system implementations and changes arising from continuous service improvement plans.
    • Represent wider Service Operations team by attending customer-facing technical calls, Change boards etc. as required.
    • Resolution of reported faults escalated to the team within defined Service Level Agreements (SLAs).
    • Ensuring all actions carried out by you or your team are recorded accurately in the Service Management or Project Management toolsets as applicable.
    • Review and coordinate customer-facing reports, mentoring colleagues where improvements can be made and ensuring each is tailored appropriately for the intended audience.
    • Develop capacity guidelines and associated monitoring for the storage infrastructure across estate.
    • Provide capacity and performance forecasting and reports, both proactively and in response to Change requests.
    • The deployment of both standard and complex changes to customers’ infrastructures.
    • The development of technical procedures that can be operated and managed by the entire Service Operations team.
    • The ability to work outside of normal working hours to provide standby cover and out-of-hours services as per an on-call rota.

    What skills and experience do you need?

    Essential skills:

    • Microsoft Cloud solutions (Azure AD, M365 etc)
    • Windows Server infrastructure administration and management
    • Active Directory administration and management
    • Group Policy administration and management
    • Implementation, management, and support for resilient cross-data centre Microsoft solutions such as AD, SQL, and Exchange
    • Microsoft Endpoint Configuration Manager (MECM/SCCM)
    • Understanding of best practice for the Security and hardening Microsoft operating systems
    • VMware ESX and vCenter in a clustered environment
    • Working knowledge of monitoring tools (e.g. SolarWinds, Nagios etc)
    • Mentoring colleagues of varying experience
    • Participation in a project or transition environment
    • Working in secure environments with associated processes
    • Managing escalations from colleagues and customers
    • Must be able to hold Security Clearance at a minimum of SC level
  • A bit about us

    Prolinx offers a great opportunity to grow your career and can offer many prospects for the future. If you’re ambitious, highly self-motivated and ready for a challenge then this is the time to join an exciting and vibrant company and have the opportunity to work for a UK market leader in secure managed services.

    We are always on the lookout for talented individuals to join our growing team. As a UK based SME, we are keen to expand our network and develop our services so we need people we can rely on, who work well in a small team and who are confident in what they do.

    You will be a part of a great company, where your skills and experience will be tested and valued.

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    Prolinx Employee Benefits

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      Learning & Development opportunities

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      Up to 24 days holiday plus bank holidays

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      + Long service holiday rewards

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      Company Bonus schemes

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      Pension matched up to 10%

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      Health & well-being scheme

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      Charitable opportunities & events

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      Vetting support & sponsorship

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      Financial support for advanced vetting

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      Supportive working culture