IT Support Engineer

3rd Line Support Engineer

Milton Keynes

Are you an experienced 3rd Line Support Engineer looking for a role where your expertise will make a meaningful impact? Do you thrive in a fast-paced, client-focused MSP environment, juggling projects, escalations, and mentoring with calm confidence If so, you may be exactly who we’re looking for.My Client is seeking a highly capable, hands-on 3rd Line Senior Support Engineer to join our dynamic service team. This role is central to delivering the excellent service we’re known for—supporting diverse client environments, deploying cutting-edge solutions, and leading technical improvement.

As a senior engineer, you’ll own escalated incidents, deliver technical projects, and guide both clients and colleagues toward robust, modern solutions.

This is a varied role covering a broad set of technologies across multiple industries, including legal, logistics, manufacturing and professional services.

• Lead and deliver complex projects:

• - Office relocations, server/cloud migrations, onboarding, and infrastructure upgrades

• - M365 migrations (Exchange, file shares to SharePoint/OneDrive)

• - VoIP and Teams telephony deployments

• Configure and support:

• - Routers, firewalls, switches, access points

• - Windows Server (installations, upgrades, AD/DNS/GPO management)

• - Virtual platforms: Hyper-V, RDS farms, Citrix (including Citrix Published Apps)

• Administer and secure Microsoft 365:

• - Azure AD, Intune, Endpoint Manager, Teams, OneDrive, SharePoint

• - MFA, Conditional Access, and compliance/security policies

• Deploy and manage backup & cybersecurity tools (Veeam, EDR/XDR solutions, M365 backups, email filtering)

• Work with mobile device management (Android, iOS)

• Ensure proactive monitoring and remediation using RMM and ITSM platforms

• Mentor 1st / 2nd line engineers, assist with documentation, and contribute to continuous improvement

• Adhere to SLAs, prioritise effectively, and communicate clearly with end-users and stakeholders

You are a proactive problem solver with a passion for technology and a commitment to delivering real value to clients. You work well under pressure, balance BAU and project work effectively, and can explain complex topics in plain English.

• 10+ years’ IT experience, including at least 3 years in a 3rd line/Senior MSP role

• Proven expertise in M365/Azure ecosystem and Windows Server environments

• Strong knowledge of networks, firewalls, DNS, DHCP, VLAN’s, VPN and ZTNA technologies

• Experience with RMM/PSA platforms

• Hands-on knowledge of backup and cybersecurity tooling

• A full UK driving licence and willingness to travel occasionally to client sites

• Calm under pressure, solutions-oriented

• Strong ownership of technical problems

• Confident communicator across all technical levels

• Balances project delivery and escalated support work effectively

• Curious, continuously learning, and up-to-date with evolving technology

• A collaborative mindset with a desire to coach others and improve processes

• Excellent communication and time management skills

• Champions documentation, knowledge sharing, and consistency

• Competitive salary

• Company laptop

• Ongoing training and certification support

• Workplace pension scheme

• A close-knit team with a strong culture of collaboration and excellence

Skills:

Office 365 / O365, Citrix and Hyper-V, Handheld device support, Windows Server, Active Directory / AD, MS Exchange, Firewalls, Network Support