Senior Backend Developer (Crypto & Kubernetes)

In Cyclad we work with top international IT companies in order to boost their potential in delivering outstanding, cutting-edge technologies that shape the world of the future. We are seeking an experienced Senior Backend Developer to join a remote development team. The role focuses on designing and building core backend services for ORA, enabling secure cloud integration with SEF using KMIP and Barbican.

Project information:

• Type of project: IT services
• Office location: Warszawa
• Work mode: Remote
• Budget: 160-180 PLN net /h - b2b
• Project length: Long-term
• Only candidates with citizenship in the European Union and residence in Poland
• Start date: ASAP (depending on candidate"s availability)

Project scope:

• Design and implement backend services for ORA core, integrating with KMS via KMIP for services such as Barbican and Ceph
• Develop and maintain Kubernetes-based infrastructure, including Custom Resource Definitions (CRDs), operators, and controllers
• Build secure communication layers leveraging TLS and advanced data encryption techniques
• Collaborate with architecture and infrastructure teams to ensure seamless integration across management layers
• Implement unit and integration tests to ensure code quality and reliability
• Contribute to system design decisions and provide technical leadership for backend architecture

Requirements:

• Strong backend development experience in Java, Golang, or Python
• Solid understanding of cryptography, e.g., TLS, data encryption
• Hands-on experience with Kubernetes, including infrastructure and management layers
• Experience with OpenStack
• Experience in unit and integration testing for backend services
• Ability to work on complex distributed systems and core services
• Strong logical thinking, independence, and problem-solving skills
• Fluent in English (minimum C1)

We offer:

• Remote working model
• Full-time job agreement based on b2b
• Private medical care with dental care (covering 70% of costs) + rehabilitation package. Family package option possible
• Multisport card (also for an accompanying person)
• Life insurance