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
o Configure, manage, and troubleshoot firewalls, VLANs, DMZs, and switching.
o Deploy and maintain wireless networks, including guest/corporate segmentation.
o Use and maintain network monitoring platforms.
o Apply strong security principles to network architecture.
* Azure / Office 365 / Cloud
o Administer Azure AD/Entra ID and Microsoft 365 services (Exchange Online, Teams, SharePoint, OneDrive, Intune).
o Support hybrid AD environments.
o Implement Azure backup, DR, and storage solutions.
o Configure and maintain Azure Virtual Desktop environments.
* Infrastructure & Servers
o Manage Windows Server environments (AD, DNS, DHCP, GPO).
o Support virtualisation platforms (VMware/Hyper?V).
o Deliver server patching activities.
o Configure and maintain SAN/NAS storage technologies.
* Endpoint Management
o Manage devices via Intune, Autopilot, and other MDM/EMM tools.
o Apply and monitor endpoint security and compliance policies.
o Oversee device lifecycle management.
* Cybersecurity
o Support email security controls.
o Configure and maintain EDR/XDR/AV platforms.
o Apply privileged access management.
o Monitor logs using SIEM and other tooling.
* Cross Functional
o Act as the 3rd line escalation point for the service desk.
o Conduct detailed troubleshooting and root cause analysis.
o Document infrastructure, procedures, and technical solutions.
o Manage vendor relationships.
o Support projects, migrations, and upgrades.
o 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