Senior 3rd Line Engineer

Ashdown Group • borehamwood, eastern, United-Kingdom • Posted June 08, 2026

Location borehamwood, eastern
Job Type Full-time
Category Engineering
Posted June 08, 2026

Job Description


Please read the information in this job post thoroughly to understand exactly what is expected of potential candidates.

Our client, a growing, technically driven MSP that’s investing heavily in automation and next generation technology require a Senior 3rd Line Engineer. This is a pivotal role within the company and will require someone who can provide solutions for complex 3 rd line issues whilst mentoring other team members within the support team.

The role is offered with a hybrid working pattern and is based at the company’s offices which are easily accessible for the Barnet/Watford areas.

Key responsibilities

  • Act as the top-tier escalation point for complex incidents
  • Lead the rollout + optimisation of NinjaOne RMM (automation, alerting, remediation scripting)
  • Own M365, Intune, Conditional Access, hybrid Exchange, and Azure AD/Entra
  • Mentor engineers in diagnostic methodology
  • Work closely ...

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