3rd Line Support Engineer

Salary: £45,000 - 55,000 per year

• Previous experience in a 3rd Line Engineer, Senior Infrastructure Engineer, or similar position
• Experience leading or mentoring technical engineers within a service desk or MSP environment
• Strong technical knowledge across Microsoft 365, Azure, Windows Server, networking, and virtualisation technologies
• Experience supporting complex infrastructure and cloud environments
• Strong troubleshooting and problem-solving capabilities
• Excellent communication and stakeholder management skills

• Act as the primary escalation point for complex 3rd line technical issues
• Lead and support the 3rd line engineering team across daily operations and technical delivery
• Troubleshoot and resolve advanced infrastructure, cloud, networking, and security incidents
• Support and maintain Microsoft 365, Azure, virtualisation, backup, and server environments
• Assist with project delivery, system upgrades, migrations, and infrastructure improvements
• Work closely with 1st and 2nd line teams to provide technical guidance and escalation support
• Monitor service performance and contribute to continual service improvement initiatives
• Create and maintain technical documentation and best practice processes

• Azure
• Cloud
• Support
• Microsoft 365
• Security
• Windows
• Office 365

We are a growing Managed Service Provider based in London, offering hybrid working, training and certifications, career progression, a collaborative culture, and exposure to enterprise technologies. We are looking to hire a 3rd Line Engineer / Team Lead to support and develop our expanding technical support function. This role combines hands‑on support and project work with day‑to‑day leadership of our 3rd line engineering team, giving you the opportunity to work across Microsoft 365, cloud platforms, infrastructure, cyber security, networking, and disaster recovery solutions in a fast‑paced, customer‑focused environment.