Senior Security Engineers & CISOs (Spain), we want to hear from you About Ledn Ledn is the leading bitcoin-backed lender dedicated to providing secure, transparent, and efficient digital asset-based solutions. Our mission is to help clients build long-term wealth in hard assets by offering a suite of innovative products, including interest-earning accounts, loans, and trading services. Serving 100+ markets with $11B in loans issued since 2018, Ledn continues to expand its reach, ensuring clients can access reliable financial products wherever they are. 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 integral 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 env

📌 Senior Security Engineer (España)
🏢 Ledn
📍 España