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We are seeking an experienced Infrastructure Systems Engineer to provide advanced (L3) operational support for Office IT infrastructure services. This role focuses on ensuring high availability, stability, and performance of enterprise platforms including Active Directory, Office 365, and Windows Server environments. The role requires strong independent judgement, deep technical expertise, and end-to-end ownership of supported services while contributing to continuous improvement and service excellence.
Job Responsibility
Provide third-line (L3) support and escalation management for Office IT infrastructure services
Own and manage backend infrastructure platforms, ensuring agreed availability and performance levels
Perform daily system health checks and proactively resolve infrastructure issues
Diagnose and resolve complex incidents and service requests within defined SLAs
Manage and participate in crisis situations, following established escalation and incident management processes
Collaborate with vendors, internal teams, and technical leadership to restore and improve services
Conduct performance, capacity, and configuration analysis for infrastructure systems
Support service improvement initiatives and contribute to operational readiness for future projects
Act as a technical mentor to L1 and L2 support colleagues, including participation in knowledge-sharing and onboarding activities
Maintain clear communication with stakeholders, including technical leads and cross-functional teams
Requirements
Bachelor’s degree in Engineering or Computer Science
4–6 years of professional experience in IT infrastructure or systems support within large-scale environments
Proficient in Microsoft Office 365 services, Active Directory, ADFS, AD Connect, and licence management
Experienced in Windows Server (2016/2019), Microsoft SQL, and infrastructure troubleshooting
Skilled in PowerShell scripting for automation and operational efficiency
Knowledgeable in ITIL-based service management, with ITIL Foundation certification
Comfortable working in multicultural, globally distributed teams
A clear and confident communicator with strong written and spoken English skills
Customer-focused, accountable, and collaborative in approach, with a strong sense of ownership
What we offer
Exposure to complex, enterprise-scale IT infrastructure environments
Opportunities to work with global stakeholders across Vodafone Group
A role with meaningful impact on service availability and customer experience
Continuous learning through operational challenges, service improvement initiatives, and technical mentoring