Senior Backend & Cybersecurity Integration Developer

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

Work arrangement
No