Senior 3rd Line Engineer

Ashdown Group; Borehamwood; Hybrid; GBP 55,000 - 60,000; Full time

Job summary

A growing managed service provider in Borehamwood is seeking a Senior 3rd Line Engineer. This pivotal role involves resolving complex issues while mentoring team members. Key responsibilities include managing M365, Intune, and Azure, and leading the rollout of NinjaOne RMM. The successful candidate must have 3rd line experience within an MSP and solid troubleshooting skills. The position offers a hybrid working model with a competitive salary of £55,000 - £60,000 plus benefits.

Benefits

£3k annual certificate budget

Competitive benefits

Qualifications

• Must have 3rd line experience within an MSP.
• Full Microsoft Certificates desirable.
• NinjaOne/Datto RMM config experience required.

Responsibilities

• Act as the top-tier escalation point for complex incidents.
• Lead the rollout + optimisation of NinjaOne RMM.
• Work closely with technical leadership.

Skills

3rd line experience

Expert M365 (CA, Intune, hybrid Exchange, ATP)

Strong troubleshooting methodology

Confident communicator

Solid PowerShell skills

Education

Full Microsoft Certificates

Tools

NinjaOne

Azure infrastructure

Firewalls (Fortinet, SonicWall, Draytek)

Job description

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 3rd 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 with technical leadership—no non-technical managers blocking decisions

Role requirements

• Must have 3rd line experience within an MSP
• Expert M365 (CA, Intune, hybrid Exchange, ATP)
• Strong troubleshooting methodology
• Confident communicator at all levels
• Full Microsoft Certificates desirable
• NinjaOne/Datto RMM config
• Azure infrastructure
• Firewalls (Fortinet, SonicWall, Draytek)
• Solid PowerShell skills

The role is offered with a salary of between £55,000 - £60,000 + £3k annual certificate budget plus competitive benefits.