Senior 3rd Line Support Engineer/Azure/M365/Customer Success Specialist (MSP) Location: Bristol Office-based 4 days per week + customer site visits Salary: £43k + benefits Start: ASAP (Immediate or up to 4 weeks'' notice)Role Overview:We are seeking an experienced Senior 3rd Line Support Engineer to join our MSP environment in a highly customer-facing, escalation and mentoring-focused role.This position blends senior technical support, customer success, and service improvement, acting as both a technical escalation point and a trusted advisor to customers. You will support multiple clients, work closely with service desk and consulting teams, and play a visible role in improving customer outcomes, service quality, and adoption of managed services.This is an ideal role for someone with strong MSP experience, an appetite to coach and mentor others, and a desire to progress into technical leadership or service management.Core Purpose:Drive customer satisfaction, retention, and service excellenceAct as 3rd line escalation for complex, high-impact incidentsSupport onboarding, adoption, and ongoing customer successProvide a higher-level view of customer environments and engagementUse data and insight to proactively improve service deliveryKey Responsibilities:Issue Resolution andamp; Senior SupportAct as the primary escalation point for priority and complex technical incidentsLead troubleshooting activities across infrastructure, cloud, and security platformsWork closely with 2nd l