My client, a growing IT services business based in South West London, is looking to recruit a Senior IT Support Engineer to join their expanding team. This is a hands-on technical role for an experienced engineer who can hit the ground running, take ownership of complex escalations and build strong client relationships. You''ll play a key role in resolving challenging issues, delivering infrastructure projects and ensuring clients receive an excellent level of support. As a Senior IT Support Engineer, you will: Take ownership of complex escalations across multiple client environments. Work directly with clients to diagnose issues, implement solutions and provide expert technical guidance. Plan and deliver Microsoft 365 migrations and wider infrastructure projects, managing them from scoping through to successful implementation. Investigate security incidents and potential cyberattacks, identify root causes and implement preventative measures. Provide hands-on support across Microsoft 365, Azure/Entra ID, networking, endpoints and wider infrastructure. Configure, maintain and troubleshoot Servers, Switches and Firewalls. Work proactively and independently, using your technical expertise and initiative to resolve issues effectively. You''ll be an experienced IT engineer with strong troubleshooting skills, a practical approach to problem-solving and the confidence to manage client-facing situations. You''ll thrive in a flat, collaborative team where everyone rolls up their ..... full job details .....