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