Overview job description

As a senior technical escalation point, the 3rd Line Engineer delivers advanced support across a wide range of systems, ensuring client environments remain secure, resilient, and high?performing. The role covers deep troubleshooting, major incident ownership, project delivery, and mentoring of 1st/2nd line colleagues.

Main duties and responsibilities

• Networking
• Configure, manage, and troubleshoot firewalls, VLANs, DMZs, and switching.
• Deploy and maintain wireless networks, including guest/corporate segmentation.
• Use and maintain network monitoring platforms.
• Apply strong security principles to network architecture.

• Azure / Office 365 / Cloud
• Administer Azure AD/Entra ID and Microsoft 365 services (Exchange Online, Teams, SharePoint, OneDrive, Intune).
• Support hybrid AD environments.
• Implement Azure backup, DR, and storage solutions.
• Configure and maintain Azure Virtual Desktop environments.

• Infrastructure & Servers
• Manage Windows Server environments (AD, DNS, DHCP, GPO).
• Support virtualisation platforms (VMware/Hyper?V).
• Deliver server patching activities.
• Configure and maintain SAN/NAS storage technologies.

• Endpoint Management
• Manage devices via Intune, Autopilot, and other MDM/EMM tools.
• Apply and monitor endpoint security and compliance policies.
• Oversee device lifecycle management.

• Cybersecurity
• Support email security controls.
• Configure and maintain EDR/XDR/AV platforms.
• Apply privileged access management.
• Monitor logs using SIEM and other tooling.

• Cross Functional
• Act as the 3rd line escalation point for the service desk.
• Conduct detailed troubleshooting and root cause analysis.
• Document infrastructure, procedures, and technical solutions.
• Manage vendor relationships.
• Support projects, migrations, and upgrades.
• Mentor junior engineers.

Applicants to this role require

• 5+ years in a similar technical support role (MSP background beneficial).
• Strong networking knowledge (firewalls, VLANs, switching, Wi?Fi).
• Hands?on experience with Azure AD, O365, and hybrid environments.
• Proficient with Windows Server, AD, DNS, DHCP, GPO.
• Experience with VMware/Hyper?V.
• Competent with endpoint management platforms (Intune, Autopilot, MDM/EMM).
• Knowledge of backup/DR, storage, SAN/NAS, Azure storage.
• Solid cybersecurity understanding including EDR/XDR, email security, PAM, SIEM.
• Full UK driving licence.

Desirable

• Industry certifications (Microsoft, VMware, Cisco, Fortinet, CompTIA Security+).
• PowerShell or automation skills.
• Prior MSP experience.

Soft Skills

• Strong analytical and root?cause troubleshooting capability.
• Clear, confident communication with users and technical peers.
• High standards of documentation and process discipline.
• Customer?focused mindset.
• Proactive, adaptable, and team?oriented.
• Good at managing vendor/partner relationships.
• Commitment to continuous learning.

TMM Recruitment INDIT

Email:it_team@tmmrecruitment.com