About this role
International Airport of Heraklion, Crete S.A. is currently looking for a:
Senior Business Systems Engineer (based in Crete)
Responsibilities
- Support Microsoft 365, Entra ID, Intune, Windows 365 and related services within the team service boundary
- Work with identity lifecycle, enterprise applications, service principals, MFA, Conditional Access and device-management dependencies
- Use PowerShell, APIs, Git and modern engineering practices to automate repeatable administration and improve service reliability
- Diagnose Windows Server, Active Directory, DNS, virtualization, storage, Azure, database, backup and certificate dependencies where they underpin an owned Business System
- Lead technical investigations for escalated incidents, participate in RCA and maintain clear evidence, workarounds and recovery actions
- Provide L2 support for enterprise and departmental Business Systems and retain technical ownership through incident resolution
- Troubleshoot application, identity, integration, data-access and service-dependency issues end-to-end before escalation
- Support HDS / ITSM, EMS / Enterprise Management, SAP / ERP technical dependencies, Power Platform, Power BI / Fabric and other assigned business applications
- Participate in FAT/SAT/UAT, supplier handover, go-live, hypercare and transition to BAU
Requirements
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Bachelor's degree in Computer Science, Information Technology, Information Systems, ICT / Systems Engineering or a related technical field; a relevant Master's degree is an asset
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Relevant Microsoft 365, Azure, Entra, IT service management or comparable enterprise-technology certifications are highly desirable
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Minimum 5 years of hands-on experience in complex ICT environments with enterprise applications, Microsoft cloud services, identity, automation or production support; senior ownership, mentoring or supplier coordination is an advantage
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Working knowledge of Azure, Windows and identity fundamentals, with PowerShell or comparable scripting / automation capability
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Excellent command of English, both written and verbal
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Competencies
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Strong team orientation, ownership mindset, communication and problem-solving skills
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Structured incident diagnosis, problem solving and clear technical communication
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Ability to coordinate effectively with users, ICT peers and external suppliers