Senior Security Engineers & CISOs (Spain), we want to hear from you Ledn is a global financial services company built for digital assets, helping to improve the everyday lives of Bitcoin holders while building generational wealth for the future. We offer a suite of egalitarian lending, savings and trading products to digital asset holders in over 120 countries around the world. Through our products & services, we can make a difference in the lives and futures of our clients - in real terms. Our team at Ledn is a passionate group of individuals from diverse backgrounds. What we all have in common is an unshakeable conviction that digital assets can democratize access to the general economy and Ledn’s suite of products & services can play a critical role in doing so. The core values that guide us are: act with integrity always, own it, have a passion for progress, and lead with empathy. Combining these values with our conviction make Ledn an unstoppable force in changing the world for the better. Come join us as we build, innovate and revolutionize financial services The Opportunity:



As a full-time Senior Security Engineer & CISO(Spain), you will be a hands-on, high-ownership individual contributor responsible for strengthening Ledn's product, cloud, and software delivery security. You will find vulnerabilities before attackers do, build controls that prevent entire classes of issues from reaching production, and help engineers ship securely. This is a builder-and-breaker role: you will assess our applications, APIs, AWS environment, Cloudflare edge, and GitHub workflows from an adversary's perspective, then partner with owners to remediate findings and validate the fixes. You will turn lessons from individual issues into practical standards, automation, and measurable improvements. You'll work closely with Software Engineering, DevOps & Infrastructure, Risk, and Compliance. In a regulated digital-asset environment, you will contribute technical controls, evidence, and

📌 Senior Security Engineer (España)
🏢 Ledn
📍 España