Airport Systems Engineer (based in Crete)

International Airport of Heraklion, Crete S.A. is currently looking for a: Airport Systems Engineer (based in Crete) Responsibilities - Trace operational incidents end-to-end across source data, application, database, integration, connectivity and external dependencies - Retain technical ownership of the airport service through recovery, validation and evidence-based escalation - Work with REST APIs, XML / JSON, SFTP, messaging / queues and interface monitoring where required by supported airport services - Use SQL Server and/or PostgreSQL and Linux troubleshooting skills to diagnose application and data-flow issues - Participate in design/interface review, FAT/SAT/UAT, go-live, hypercare and transition to BAU - Maintain service documentation, interface records, monitoring and runbooks - Provide L2 support for assigned Airport Operational Systems and related airport integration services - Participate in major incident resolution, RCA, controlled production changes and disaster-recovery / continuity exercises - Participate in the light critical-production on-call model once staffing and operational readiness - Work with Airport Operations, airlines, ground handlers and operational stakeholders to understand impact and validate service restoration - Coordinate with ICT Infrastructure, Network and Security teams when incidents cross technical boundaries - Manage technical escalation to providers and other specialist suppliers when required Requirements - Bachelor's degree in Computer Science, Information Technology, Engineering or a related field; a relevant Master's degree is an asset - Minimum 3 years of experience in production application support, systems integration, databases or Linux; airport or other 24x7 critical-infrastructure experience is an advantage - Strong application support and troubleshooting skills, with knowledge of SQL Server and/or PostgreSQL - Experience in systems integration, REST APIs, XML/JSON, SFTP and messaging technologies - Knowledge of airport systems (AODB, RMS, FIDS, CUPPS, CUSS, DCS) or Azure integration services is an advantage - Relevant certifications in Linux, databases, cloud or IT service management are desirable - Excellent command of English, both written and verbal Competencies - Strong team orientation, ownership mindset, communication and problem-solving skills - Ability to work effectively with operational stakeholders and technical suppliers