Arthur Cox LLP is one of Ireland’s leading law firms. We are an “all-island” firm with offices in Dublin and Belfast. We also have offices in London, New York, and San Francisco. Our practice encompasses all aspects of corporate and business law. With 600 legal staff and a total headcount of nearly 900, we provide a comprehensive service to an international client base ranging from multinational organisations, banks, and financial institutions and established global leaders to government agencies and new players in emerging industry sectors. Our story has been defined by our progressive outlook. For over 100 years, we have led the way in the legal field in Ireland. For our clients, we work to deliver the best service and support. With an independent, entrepreneurial spirit of innovation leading the way. Department: IT Location: Dublin (hybrid) Reports to: Infrastructure & Cloud Operations Manager Contract Type: Daily Rate Contractor (circa 6 month) Background: Arthur Cox is at the forefront of technology adoption that drive value within the firm, its client's business, and the wider legal industry. IT operations play a central role, connecting digital capabilities to the firm’s objectives and creating a solid foundation for continued success. About the Role: The successful candidate will play a key role in supporting, maintaining and enhancing the firm's technology infrastructure. This includes on-premises infrastructure, Microsoft 365 services, cloud platforms, networking, storage, virtualization and core compute environments. You will work collaboratively across multidisciplinary IT teams including cloud, security, service desk, and applications to deliver stable, secure, and scalable infrastructure services while supporting ongoing transformation and modernization initiatives The role also requires effective collaboration with third-party service providers and technology partners to ensure the smooth operation of business-critical systems and services. Infrastructure Management & Operations • Maintain, configure, and support on‑prem and cloud‑based infrastructure including Cloud, servers, storage, virtualization platforms, and core network. • Monitor system performance, capacity, and availability; implement improvements to ensure reliability and resilience. • Perform regular patching, updates, and configuration changes in line with change management processes. • Troubleshoot complex technical issues and serve as an escalation for Tier 1 and 2 teams. • Troubleshoot hardware issues and coordinate repairs or replacements where required. Microsoft Azure Infrastructure and Cloud Services • Support, administer and optimise Microsoft Azure infrastructure and platform services. • Manage Azure resources including virtual machines, storage accounts, networking, security controls and identity services. • Support cloud security initiatives using Microsoft Defender, Azure Security Center, Conditional Access, and Zero Trust principles. • Assist with cloud migration, infrastructure modernisation and Azure adoption initiatives. • Support Azure Landing Zone standards, subscriptions, and RBAC Microsoft 365 & Modern Workplace Services • Administer, Support and optimise M365 services including Teams, SharePoint, Exchange Online and OneDrive and other related cloud services. • Administer Entra ID, Conditional Access policies, MFA, and device compliance. • Monitor M365 service health and resolve issues (Tier 2 support). • Support endpoint management and modern workplace initiatives through Microsoft Intune. Incident, Problem & Change Management • Manage and resolve incidents within defined SLAs, ensuring high-quality updates and communication. • Follow ITIL-driven processes for change, problem, and service performance management. • Participate in root-cause analysis and continuous improvement activities. Security & Compliance • Implement and maintain security controls across infrastructure components in partnership with the security operations team. • Remediate vulnerabilities, apply patches, and support Zero Trust principles where applicable. • Ensure compliance with organisational, regulatory, and security standards Project Delivery & Continuous Improvement • Support the delivery of infrastructure projects, upgrades, and migrations. • Contribute to infrastructure modernisation initiatives, including cloud adoption/migration • Identify opportunities for automation, optimisation, and simplification. • Develop and maintain technical documentation, support guidelines, and runbooks. • Bachelor’s degree in computer science, Information Technology or related field AND 5 years’ experience in IT infrastructure engineering or a related technical operations role. • Certifications (Highly desirable): - Microsoft 365 Certified: Administrator Expert. - Microsoft Azure Certified: AZ-104 or AZ-800. - Relevant industry certification i.e. Cisco (CCNA/CCDA or higher), CompTIA +, etc. - ITIL Foundation or similar service management awareness. • CISSP or similar security certification a plus. • Experience with device analytics or monitoring tools. Skills and Competencies: Essential Technical skills: • Expertise in Microsoft Windows Server, Active Directory, Group Policy, DNS, DHCP and troubleshooting methodologies. • Strong experience with Microsoft 365: Teams, OneDrive, Exchange Online, Intune and Entra ID. • Strong knowledge of virtualization (VMware), storage systems, and backup technologies. • Strong understanding of networking fundamentals —LAN/WAN, firewalls, routing, switching. • Knowledge of ITIL processes (Incident, Problem, Change Management). • PowerShell or other scripting language proficiency for automation tasks a plus. • Knowledge of Azure Kubernetes Service (AKS) is a plus. • Knowledge of CI/CD, GitHub Enterprise (GHE), and Infrastructure as Code (IaC) is a plus Soft skills: • Demonstrated critical thinking, troubleshooting and problem-solving skills to complex technical problems. • Excellent interpersonal, w