Backend Engineer

iKnowHow SA is a leading Software & Robotics Solutions company operating internationally. We aim to empower businesses with innovative software and robotics solutions. As a rapidly growing company with a vision for the future, we are committed to fostering a dynamic and collaborative workspace where creativity and technical excellence thrive.

Based in Athens, our team is now expanding rapidly through ambitious projects in defense-grade digital systems, swarm robotics, AI, and custom software solutions.

We are now looking for a skilled and versatile Backend Engineer to design, develop, and maintain secure, scalable backend services across multiple mission-critical platforms in the defense and homeland security domains.

Responsibilities

• Design and implement robust backend architectures using modern frameworks and APIs

• Develop and maintain secure RESTful and/or gRPC interfaces for data access and control

• Integrate user and access control logic across platforms (e.g., role-based permissions)

• Support backend data pipelines for AI training, annotation, and DMS systems

• Build modular microservices and message-driven components

• Connect with front-end teams and ensure seamless full-stack integration

• Ensure backend systems comply with cybersecurity and data protection regulations

• Contribute to system deployment via Docker, Kubernetes, and CI/CD workflows

• Document backend services and contribute to system-wide design decisions

• Participate in agile ceremonies, code reviews, and integration testing

• Bachelor / Master Degree in Computer Science, Software Engineering, or related field

• 3+ years of experience in backend development for complex systems
• Familiarity with cloud-native architectures and backend testing practices

• Experience in Java (Spring), Python (FastAPI, Flask), Node.js or Go
• Experience in RESTful APIs, Caching, WebSockets, JWT/OAuth2
• Experience in PostgreSQL, MongoDB, Redis, RabbitMQ/Kafka
• Docker, Git, CI/CD tools (GitLab CI, Jenkins)
• DevSecOps awareness and logging/monitoring (e.g., Prometheus, Grafana)
• Proven experience in building and securing APIs and managing authentication flows
• Familiarity with microservice security patterns (e.g., API gateways, service mesh) is desirable
• Familiarity with GraphQL or gRPC, and API rate limiting/auth logging
• Knowledge of defense data exchange standards (e.g., STANAG 4774/4778) is desirable
• Integration with AI model endpoints or MLFlow-style pipelines is desirable
• Fluency in English is required

Nice to have:

• Experience in collaborative R&D or EU-funded environments
• Experience with military-grade or high-availability systems
• Background in edge/cloud communication or IoT middleware

• Attractive salary package

• Comprehensive health insurance plan and additional benefits

• Career development and growth opportunities through a structured Job Grade System

• Continuous learning opportunities, including personalized training seminars and access to cutting-edge technologies

• Leadership role in a fast-growing company with a strong emphasis on innovation and technical excellence

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