Expert Cyber Security Engineer

Investigate emerging threats and novel attack vectors, then use your findings to design and build defense strategies to mitigate them * Assess & Penetrate: Perform hands-on penetration testing and security assessments against our most complex systems to discover and validate vulnerabilities Requirements * 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) Desirable * Experience securing modern technologies like serverless architectures or AI/ML platforms * Experience with

secure architectures for cloud-native environments (AWS, GCP, Kubernetes) * Relevant industry certifications (e.g., OSCP, OSCE, CISSP) What's in it for you? * Care: your mental and physical health is our priority. We ensure comprehensive company-paid medical insurance and 4 additional undocumented sick leave days * Tailored education path: boost your skills and knowledge with our regular internal events (meetups, conferences, workshops), Udemy license, language courses and company-paid certifications * Growth environment: share your experience and level up your expertise with a community of skilled professionals, locally and globally * Flexibility: Own your schedule - you are the one to decide when to start your working day. Just don't miss your regular team stand-up. We are there to support your work-life balance and provide 23 vacation days * Opportunities: we value our specialists and always find the best options for them. Our Internal Mobility Program helps change

Job Description 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. Responsibilities This senior role blends proactive design with hands-on security validation in web application development. You will focus on long-term security improvements by identifying and mitigating risks before they materialize. * Architect & Threat Model: Lead security design reviews and conduct in-depth threat modeling for new products and critical infrastructure * Research & Build