Senior Information Technology Support Engineer

Our client is looking for a Senior Support Engineer to take technical ownership of assigned client accounts across Apple, Microsoft and Google environments.You will resolve complex issues, advise senior stakeholders and deliver improvement projects for a portfolio of London-based advertising, marketing and media businesses.This role combines hands-on support with proactive technical management.ResponsibilitiesOwn the technical relationship with assigned clients, acting as their main point of contact.Resolve technical issues across Apple, Microsoft and Google environments, coordinating specialist input where required.Deliver scheduled on-site support, including full-day client cover, alongside remote helpdesk support.Manage incidents through to resolution within agreed service levels, maintaining clear communication throughout.Review client environments, identify technology gaps and recommend practical improvements.Plan and deliver technical projects from initial scope through to implementation.Lead the technical elements of client onboarding, offboarding and infrastructure reviews.Maintain accurate ticket, time and technical records.Identify technologies and service improvements that strengthen client environments and support account growth.