Ciklum is looking for an Expert Cyber Security Engineer to join our team in Spain. We are a custom product engineering company that supports both multinational organizations and scaling startups to solve their most complex business challenges. With a global team of over 4,000 highly skilled developers, consultants, analysts and product owners, we engineer technology that redefines industries and shapes the way people live.
About the role As an Expert Cyber Security Engineer, you'll become a part of a cross-functional development team engineering experiences of tomorrow.
Perform hands-on penetration testing and security assessments against our most complex systems to discover and validate vulnerabilities
7+ years of hands-on long-term projects with a strong background in both offensive and defensive security
~ Significant, proven experience in penetration testing (web applications preferred) and a deep understanding of an attacker's mindset
~ Strong programming and scripting skills (Python preferred) with experience building security tools, automation, or prototypes




~ Deep technical knowledge in at least one core security domain, such as cryptography, authorization/authentication, secure architecture, network security
~ Very good communication skills (English)
~ Experience securing modern technologies like serverless architectures or AI/ML platforms
~ Experience with secure architectures for cloud-native environments (AWS, GCP, Kubernetes)
~ What’s in it for you?
We ensure comprehensive company-paid medical insurance and 4 additional undocumented sick leave days
Growth environment: share your experience and level up your expertise with a community of skilled professionals, locally and globally
Our Internal Mobility Program helps change a project if needed to help you grow, excel professionally and fulfill your potential
Integral impact: work on large-scale projects that redefine industries with international and fast-growing clients
Welcoming environment: feel empowe

📌 Expert Cyber Security Engineer (Madrid)
🏢 Ciklum
📍 Madrid