> Markdown version of [/jobs/ext/3072521-security-software-engineer](https://www.wearedevelopers.com/jobs/ext/3072521-security-software-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Security Software Engineer - **Company:** K2 Partnering Solutions Ltd - **Location:** Zaragoza, Spain - **Contract:** Permanent contract - **Skills:** Cloud Computing, Cloud Computing Security, Key Management, RSA (Cryptosystem), Security Software, Software Engineering, Build Management, Containerization, Kubernetes, Restful APIs, Golang - **Published:** September 25, 2026 - **Apply:** https://www.buscojobs.com.es/security-software-engineer-en-zaragoza-ID-373164223 ## About the Role 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) #J-*****-Ljbffr ## Description Are you aSoftware Engineerwith a strong interest insecurity, cryptography, and cloud-native technologies?In this role, you will help design and build a highly secureKey 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 companySalary range:*****kWhat you bringStrong background in Software Engineering, Cryptography, and Cloud SecurityHands-on experience with Golang(must have)Familiar with AES-GCM, RSA-OAEP, ECDSA, key wrapping, and secure transportHands-on experience with Kubernetes would be considered a plusWhat you will doDesign and develop aKey Management Service (KMS)Implement secure key generation, lifecycle management, and key rotationCreateREST APIsfor Key Rings, external key import, and signing/verificationEnsure compliance with cryptographic standards(AES, RSA, ECDSA, HMAC)DevelopKubernetes operatorsto 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)#J-*****-Ljbffr