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