Senior Backend & Cybersecurity Integration Developer

About this job

iKnowHow Group is a dynamic, international technology company with 24+ years of experience and a team of 300+ talented professionals delivering innovative technology solutions across Energy, Telecommunications, Banking & Financial Services, and the Public Sector. Through its specialized subsidiaries, it brings domain expertise in areas such as Health and Robotics, blending deep industry knowledge with advanced, future-ready technologies. At its core, iKnowHow S.A. delivers end-to-end project development - both internal and client-facing - turning strategy into scalable, real-world solutions. Our portfolio spans Data & AI platforms, enterprise integration, cloud-native applications, and large-scale digital transformation initiatives, enabling leading organizations across the public and private sectors to evolve and grow. We are now looking for a talented Senior Backend & Cybersecurity Integration Developer to join our internal team. Responsibilities: • Design and development of backend services and microservices for cybersecurity applications • Development of REST APIs and event-driven interfaces between SIEM, SOAR, AI/ML and external systems • Integration with SIEM platforms, including security-event ingestion, parsing, normalization, enrichment and incident interfaces • Integration with SOAR platforms, including incidents/cases, playbooks, response workflows and enforcement connectors • Implementation of the Cyber Incident Package (CIP) interface between the security analytics and response domains • Implementation of response and enforcement APIs for network, IAM, security and platform controls • Development of services supporting incident management, response orchestration, execution tracking and response verification • Integration of AI/ML analytical outputs such as anomaly scores, behavioral indicators, threat classifications and confidence scores into operational workflows • Implementation of secure service-to-service communication, authentication, authorization and audit mechanisms • Development of connectors/adapters for heterogeneous cybersecurity and infrastructure systems • Contribution to system architecture, API specifications, data models, automated testing, integration testing and technical documentation • Collaboration with cybersecurity engineers, AI/ML engineers, system architects and other European project partners Requirements • Degree in Computer Science, Software Engineering, Computer Engineering or a related field • At least 4 years of Java/Spring boot development experience • Experience designing and implementing RESTful APIs • Experience with microservices and distributed systems • Good understanding of event-driven architectures and asynchronous messaging • Experience with relational and/or NoSQL databases • Experience with Docker and Linux environments • Familiarity with authentication and authorization technologies such as OAuth 2.0, OpenID Connect, JWT and PKI/certificates • Understanding of cybersecurity concepts including security events, alerts, incidents, logs, network security and access control • Good written and spoken English Experience in one or more of the following areas will be considered a strong advantage: • SIEM technologies • SOAR platforms and security orchestration/playbook development • Kafka, RabbitMQ or equivalent messaging/event-streaming technologies • Elasticsearch / OpenSearch • IDS/IPS/NDR technologies and integration with security telemetry • Threat Intelligence and standards such as STIX/TAXII • Cybersecurity frameworks such as MITRE ATT&CK • Integration with IAM, firewall, network-management or endpoint-security APIs • Kubernetes • DevSecOps and CI/CD pipelines • AI/ML integration in production systems • Defence, C4ISR, mission-critical or EU research projects Benefits • An attractive salary package • Private health insurance plan • Career development and growth opportunities • Continuous training via personalized seminars • An amazing private & open-office workspace in Athens #LI_Hybrid • Stable and enjoyable working environment