Are you a Software Engineer with a strong interest in security, cryptography, and cloud-native technologies ? In this role, you will help design and build a highly secure Key Management Service (KMS) for an international client. You'll work on everything from secure key generation and lifecycle management to cryptographic operations and scalable APIs.

Contract: permanent, remote from Spain, direct with the company Salary range: 60-90k What you bring Strong background in Software Engineering, Cryptography, and Cloud Security Hands-on experience with Golang (must have) Familiar with AES-GCM, RSA-OAEP, ECDSA, key wrapping, and secure transport Hands-on experience with Kubernetes would be considered a plus What you will do Design and develop a Key Management Service (KMS) Implement secure key generation, lifecycle management, and key rotation Create REST APIs for Key Rings, external key import, and signing/verification Ensure compliance with cryptographic standards (AES, RSA, ECDSA, HMAC) Develop Kubernetes operators to automate KMS and Secrets Manager lifecycle (no prior experience is required, we're looking for a genuine interest in Kubernetes and a willingness to learn)

📌 Senior Security Software Development Engineer (Madrid)
🏢 K2 Partnering Solutions
📍 Madrid