OverviewIn this role you design and build the Key Management Service to securely generate and rotate keys, enabling high-performance cryptographic operations.

You implement complex data flows like Envelope Encryption and manage DEK-KEK relationships for layered security.

You develop Kubernetes operators to automate KMS and Secrets Manager lifecycles and expose robust REST APIs for key management and signing workflows.

You own the software lifecycle in an You Build It – You Run It environment, aligning security engineering with SRE.

You ensure standards-compliant crypto operations and auditable trails to support sovereign cloud requirements.

ResponsabilidadesDesign and develop Key Management Service (KMS) with secure key generation and rotation

Implement Envelope Encryption and manage DEK/KEK relationships

Develop Kubernetes operators to automate KMS/Secrets Manager lifecycle

Build robust REST APIs for key rings, external key imports, and signing workflows

Own the software lifecycle in a You Build It – You Run It environment





Ensure cryptographic operations follow industry standards (AES, RSA, ECDSA, HMAC) with auditable trails for sovereign cloud compliance

Requisitos principalesDeep enthusiasm for Software Engineering, Applied Cryptography, and Cloud-Native security

Strong SDLC ownership with Go and Kubernetes (K8s) as core skills

Familiarity with or eagerness to master cryptographic algorithms (AES-GCM, RSA-OAEP, ECDSA) and secure key wrapping/transport

Understanding of auditing and compliance needs in high-stakes cloud environments

Ability to analyze data flows and optimize API payloads and cryptographic overhead for cost-efficiency and performance

Willingness to share security knowledge with the team

Enjoys sharing knowledge with the team

Curiosity about security standards and trends

Problem-solving mindset with bias for performance and cost-efficiency

Go programming

Kubernetes (K8s) and Kubernetes operators

Key Management Service (KMS) concepts

📌 Stackit Platform Services - Secrets Manager & Kms - Software Engineer (M/F/D) - Barcelona
🏢 Schwarz Gruppe
📍 Barcelona