Sr. Security Engineers & CISOs (Spain), we want to hear from you

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Ledn is the leading bitcoin-backed lender dedicated to providing secure, transparent, and efficient digital asset solutions. Our mission is to help clients build long-term wealth in hard assets through interest-earning accounts, loans, and trading services. Serving 100+ markets with $11B in loans issued since 2018, Ledn continues to expand its reach, giving clients access to reliable financial products worldwide.

Our team is a passionate group 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.

The Opportunity:
As a full-time Sr. Security Engineer & CISO, you'll be a hands-on, high-ownership individual contributor strengthening our product, cloud, and software delivery security. You'll find vulnerabilities before attackers do, build controls that prevent entire classes of issues from reaching production, and help engineers ship securely. A builder-and-breaker role: you'll 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 fixes. You'll turn lessons learned into standards, automation, and measurable improvements, while collaborating with Software Engineering, DevOps, Risk, and Compliance to deliver technical controls, audit evidence, and incident readiness.

This dual-mandate role is based in Spain. Beyond hands-on security engineering, you'll

📌 Senior Security Engineer (Mallorca)
🏢 Jobrapido
📍 Mallorca