Senior Infrastructure Consultant

Version 1 has celebrated
30 yearsinbusinessand continues to be trusted by global brands to deliver technology and transformation solutions that drive customer success. Ourdeepexpertiseenables our customers to navigate the rapidly evolving technology landscape. We foster strong partnerships with global technology leaders including Microsoft, AWS, Oracle, Red Hat,Out Systems, Snowflake, ensuring that our customers are provided with the highest quality solutions and services.

We’rean award-winning employer reflecting how our employees are at the very heartof whatwe do:

• 10+ years as a Great Place to Work in Ireland & UK
• Best Workplace for Women in the UK & Ireland by GPTW
• Best Workplace for Wellbeing in the UK by GPTW

We’rea co revalues driven company, we hire people who share our values, and we reward those who display and foster them,it’sdeeply embedded within our DNA. Invest in us andwe’llinvest in you!.

Role Overview:

We are seeking a Senior Infrastructure Consultant to provide senior-level consultancy, operational support, and technical leadership across complex customer environments. The role will span on-premises, hybrid, and cloud technologies, including Exchange, Microsoft 365, Azure, Windows Server, Citrix, virtualisation, backup, networking, monitoring, and security. The successful candidate will act as a senior technical escalation point, lead technical discovery and solution delivery, maintain high-quality documentation, and drive service reliability and continuous improvement.

Due to the nature of the customer environments supported, candidates must be eligible to obtain UK Security Check (SC) clearance.

• 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, Store Front, 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.
• Plan and deliver infrastructure upgrades, migrations, patching, lifecycle activities, resilience improvements, and remediation work with appropriate testing and rollback arrangements.
• Maintain technical designs, operational documentation, runbooks, support procedures, asset information, and knowledge articles.
• Operate within structured ITIL and ISO 20000 service management processes, including incident, problem, change, request, and configuration management.
• Mentor engineers, share knowledge, and provide clear customer‑facing updates on incidents, changes, risks, recommendations, and delivery progress.
• Follow customer security requirements and support work in environments requiring UK Security Check clearance.

• 7+ years’ experience in 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…