Jobs and Careers
SC

Tier 3 Helpdesk Support Technician

ScalableOS
UKRemotefull_timeVerifiedPosted 27 Mar 2026

About the role

This is a remote position.

SUMMARY

We are seeking a highly skilled, client-focused Tier III Support Technician (Escalations Engineer) to join our Managed Services team. This role is responsible for resolving complex technical issues escalated from Tier I, supporting diverse client environments, and contributing to both reactive support and proactive system improvement. The role will act as a technical bridge between frontline support and advanced engineering, ensuring system stability, security, and performance across client environments.

JOB RESPONSIBILITIES

  • Advanced Technical Support & Escalations
    • Diagnose and resolve complex issues across:
    • Servers, networks, and cloud environments
    • Active Directory, Group Policy, and identity systems
    • Exchange / Microsoft 365 email and permissions
    • Firewall, VPN, and network connectivity
    • Troubleshoot virtualization platforms (VMware, Hyper-V)
    • Resolve backup failures and perform recovery operations
  • Infrastructure & System Management
    • Configure and maintain:
    • Firewalls, switches, VPNs
    • Windows Server environments
    • Azure / Microsoft 365 tenants
    • Monitor RMM dashboards and respond to alerts
    • Ensure backup integrity and business continuity
  • Security & Compliance
    • Perform cybersecurity checks and remediation (phishing, malware)
    • Support endpoint security and email filtering platforms
    • Assist with compliance and risk mitigation efforts
  • Project & Client Engagement
    • Execute mid-level technical projects (migrations, upgrades, on-boardings, etc.)
    • Participate in client discovery and environment assessments
    • Recommend improvements aligned to client business needs
  • Team Support & Mentorship
    • Provide escalation support to Tier I technicians
    • Mentor junior team members and improve technical capability
    • Collaborate with Tier III engineers on complex initiatives
  • Documentation & Process Discipline
    • Maintain accurate, high-quality documentation (≥95% standard)
    • Document all tickets, resolutions, and system changes
    • Follow and improve standardized service workflows
  • Operational Support
    • Participate in on-call rotation.
    • Provide occasional after-hours and emergency support
    • Coordinate with vendors for escalated issues

QUALIFICATIONS

  • Minimum of 4 years Tier III experience in an MSP environment (REQUIRED)
  • Multi-industry client support experience
  • Experience supporting small to mid-sized business environments
  • Technical Expertise
    • Windows Server, Active Directory, Group Policy
    • Microsoft 365 (Exchange, Teams, SharePoint, OneDrive)
    • Networking (DNS, DHCP, TCP/IP, VPNs, firewalls)
    • Virtualization (VMware, Hyper-V)
    • Backup & Disaster Recovery solutions

Apply for this role

Generate a tailored application kit with a matched cover letter, interview prep, and CV highlights — in under 60 seconds.

Apply Now →Generate Application Kit

Free account required — sign up in 30s

Company

ScalableOS

View company profile →