This book constitutes the refereed proceedings of the 18th Symposium and Summer School on Service-Oriented Computing, SummerSOC 2024, held in Crete, Greece, during June 24–29, 2024.The 8 revised full papers and 1 short paper presented in these proceedings were carefully reviewed and selected from 24 submissions. quantum computing;

.- Modeling the Digital World. .- API-driven Cloud-Edge Orchestration with PULCEO: A Proof of Concept. .- An Orchestrator for the Dynamic Extension of Automotive E/E Architectures to the Cloud. .- Integrating Artifact Translation into Model Transformation Processes. .- Evaluating Cloud-native Deployment Options with a Focus on Reliability Aspects. .- Towards a Taxonomy of Infrastructure as Code Misconfigurations: An Ansible Study. .- Quantum Computing. .- Minimial-Risk Training Samples for QNN Training from Measurements. .- Exploring the Cost Landscape of Variational Quantum Algorithms. .- Data Platforms. .- A service-based pipeline for complex linguistic tasks adopting LLMs and Knowledge Graphs. .- Design and Implementation of a High Performance Domain Name Service on Com modity Hardware.