Senior Infrastructure Architect

We are seeking a highly experienced Senior Infrastructure Architect to support a strategic client engagement. The ideal candidate will have of ICT delivery experience
, including infrastructure architecture
, with deep expertise across Microsoft technologies
, Citrix
, virtualization, storage, backup, and cloud platforms. This role will focus on reviewing and enhancing the client’s Microsoft ecosystem, both on-premises and in the cloud, ensuring alignment with best practices and optimal value from existing support contracts.

• Lead architecture, design, planning, and build of a new Hyper-V cluster managed via SCVMM
  , including deployment approach and operational playbooks.
• Review and enhance Active Directory Tiered Model with high-level implementation plans.
• Guide migration from Windows Server 2016 to 2025
  , including server hardening.
• Create playbooks for maximizing value from Microsoft Unified Support
  , including escalation and severity management processes.
• Evaluate current O365/M365 deployment and provide cost-benefit analysis for Entra licensing tiers
  .
• Review and recommend improvements for Exchange (on-prem/online), including public folders.
• Provide architectural input and recommendations for Citrix environments
  , ensuring integration with Microsoft platforms.
• Support resilient networking and integration of Windows servers with SAN-based block storage
  .

• Review current tooling/scripting for AD management and recommend commercial/open-source alternatives.
• Recommend tooling/processes for improved visibility and response to service/security events.
• Provide guidance on automation opportunities for change management, inventory/configuration, and compliance reporting.
• Formulate formalized change processes and playbooks to minimize production environment disruption.

• Review and enhance endpoint security
  , high availability
  , and business continuity strategies.
• Recommend improvements for backup and restoration of critical Windows environments including Active Directory and Entra .
• Suggest tooling/processes for asset/inventory management and monitoring across the Microsoft/Azure estate.
• Recommend routine health check processes (e.g.,
  ADRAP
  ).

• Education
  :
  Bachelor’s degree in Computer Science, IT, or related field.
• Certifications (preferred):
• Microsoft 365 Certified Administrator Expert
• Microsoft Certified Cybersecurity Architect Expert
• Microsoft Certified Azure Solutions Architect Expert
• VMware Certified Professional (VCP)

• Windows Server (2016–2025), Active Directory, SQL Server
• SAN technologies (EMC, PURE, HPE, Net App)
• Backup solutions (Net Backup, Commvault, VEEAM)
• Integration of Windows servers with SAN block storage
• Resilient networking of Windows servers

• Strong communication with technical and non-technical stakeholders
• Leadership and mentoring capabilities
• Analytical thinking and problem-solving
• Ability to work under pressure and manage complex change processes

Version 1 has celebrated over 28 years in Technology Services and continues to be trusted by global brands to deliver solutions that drive customer success. Our expertise enables our customers to navigate the rapidly changing Digital-First world we live in. We foster strong partnerships with leading technology giants including Microsoft, AWS, Oracle, Red Hat, Out Systems, Snowflake, ensuring that our customers are provided with the highest quality solutions and services.

We’re an award-winning employer reflecting how our employees are at the very heart of Version 1 and what we 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’re a core values driven company, we hire people who share our values, and we reward those who display and foster them, it’s deeply embedded within our DNA. Invest in us and we’ll invest in you!

Why Version 1?

At Version 1, we believe in providing our employees with a comprehensive benefits package that prioritises their wellbeing, professional growth, and financial stability.

• Shar…