Senior Infrastructure Architect - Hybrid Cloud & On-Prem

Version 1; Greater London; On-site; GBP 65,000 - 90,000; Full time

Benefits offered by this job

Profit share scheme

Career development programs

Flexible/remote working

Job summary

Version 1 is seeking a Senior Infrastructure Consultant to provide senior-level consultancy, operational support, and technical leadership across complex customer environments. The role spans on-premises, hybrid, and cloud technologies including Exchange, Microsoft 365, Azure, Windows Server, Citrix, and security.

UK SC clearance is required. The successful candidate will act as a senior escalation point, lead technical discovery and solution delivery, maintain documentation, and drive service

Qualifications

• 7+ years of enterprise infrastructure consultancy, engineering, managed services, or technical operations.
• Strong hands-on knowledge of Microsoft Exchange Server and Exchange Online, including hybrid configuration, migrations, mail flow, security, high availability, and troubleshooting.
• Strong hands-on knowledge of Citrix technologies in enterprise environments, ideally including Citrix Virtual Apps and Desktops, StoreFront, Delivery Controllers, Citrix Gateway or ADC, and profile management.
• Broad experience supporting on-premises and hybrid infrastructure, including Windows Server, Active Directory, Group Policy, DNS, DHCP, VMware or Hyper-V, storage, backup, and networking.
• Practical experience with Microsoft 365 and Azure services, with the ability to support integration between cloud and on-premises platforms.
• Proven ability to analyse and resolve complex issues across messaging, end-user computing, identity, server, virtualisation, networking, monitoring, and security domains.
• Experience leading technical discovery, producing designs and implementation plans, assessing risks and dependencies, and delivering controlled infrastructure changes.
• Strong understanding of ITIL practices and experience working within a controlled managed service or enterprise environment.
• Strong customer-facing communication, stakeholder management, technical documentation, and knowledge-transfer skills.
• Ability to work independently, prioritise competing demands, manage escalations, and support multiple customer environments concurrently.
• Mandatory: Eligible to obtain and maintain UK Security Check (SC) clearance. Appointment and assignment to relevant customer work may be subject to successful vetting.
• Relevant Microsoft, Citrix, VMware, ITIL, security, or cloud certifications are desirable.

Responsibilities

• Provide senior consultancy and infrastructure support across multiple managed service customers and technologies.
• Act as a technical escalation point for Microsoft Exchange, Exchange Online, Citrix, Windows Server, identity, virtualisation, networking, backup, monitoring, and cloud-related incidents and service requests.
• Support, administer, troubleshoot, and improve Microsoft Exchange Server, hybrid Exchange, Exchange Online, migrations, mail flow, security, availability, and disaster recovery.
• Support and optimise Citrix environments, including Virtual Apps and Desktops, StoreFront, Delivery Controllers, Citrix Gateway or ADC, profile management, application delivery, and associated infrastructure.
• Work with customers and internal teams to gather requirements, complete technical discovery, produce solution designs, implement changes, and deliver service improvements.
• Support hybrid and on-premises environments including VMware, Hyper-V, Windows Server, Active Directory, DNS, DHCP, Microsoft 365, Azure, backup, storage, and network services.

Skills

Microsoft Exchange Server

Exchange Online

Citrix

Windows Server

Active Directory

Azure

VMware

ITIL

Security Clearance

PowerShell

Networking

Tools

Azure Monitor

Citrix Director

Splunk

Opsview

New Relic

Job description

Version 1 is seeking a Senior Infrastructure Consultant to provide senior-level consultancy, operational support, and technical leadership across complex customer environments. The role spans on-premises, hybrid, and cloud technologies including Exchange, Microsoft 365, Azure, Windows Server, Citrix, and security.

UK SC clearance is required. The successful candidate will act as a senior escalation point, lead technical discovery and solution delivery, maintain documentation, and drive service