This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Senior Security Engineer, Offensive Security based in Spain.

Join a remote-first security team focused on proactively identifying and eliminating threats across products, platforms, and cloud infrastructure. In this role, you will apply offensive security expertise to penetration testing, red teaming, threat modeling, exploit development, and security architecture. You will work closely with engineering, product, and leadership teams to transform security findings into durable improvements and resilient controls. The scope spans cloud environments, containerized infrastructure, SaaS applications, APIs, and emerging AI/ML products. You will also help build scalable security automation and strengthen security programs as the organization grows. This is an opportunity to make a direct impact on the security of products used by millions of developers worldwide.

Accountabilities:

As a Senior Security Engineer,



you will combine hands-on offensive security work with strategic security engineering, helping teams identify risks early and embed security into product and infrastructure development.
- Plan, scope, and execute penetration tests, red-team engagements, and adversary-emulation exercises across products and services.
- Develop proof-of-concept exploits and produce clear, risk-rated findings with actionable remediation guidance.
- Retest vulnerabilities to validate that remediation has been successfully implemented.
- Conduct security reviews and threat modeling across application architecture, designs, code, and emerging AI products.
- Build and maintain offensive security tooling, automation, security tests, and exploit capabilities to expand testing coverage.
- Partner with engineering teams to design and implement security architecture, controls, Zero Trust practices, and least-privilege access.
- Support security programs including

📌 Senior Security Engineer, Offensive Security (España)
🏢 Jobgether
📍 España