Ciklum is looking for an Expert Cyber Security Engineer to join our team full-time 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 at client, you are more than just a tester; you are the bridge between our cutting-edge AI security product and our most sophisticated global clients. This role is a unique 50/50 split between deep-core security research and high-impact customer engagement.
You will help us move beyond traditional, one-off pentesting toward an AI-first model of continuous validation. You will challenge our AI agent’s findings, expand upon its capabilities, and lead the technical conversation with our customers to prove the value of AI-driven security.
Responsibilities:
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Strategic Customer Advisory (50%): Act as the "Face of Security" for Client during POCs and deep-dive technical sessions with external stakeholders
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Present complex security findings and AI-generated insights to sophisticated clients, helping them interpret risks and prioritize remediation
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Navigate the nuances of an early-stage AI product, confidently managing client expectations and demonstrating the system's evolving capabilities
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Offensive Security Research (30%): Perform manual, hands-on penetration testing to validate and expand upon the AI agent's findings
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Investigate the "edge cases" where AI might hallucinate or miss logic-driven flaws, providing the human expertise needed to ensure 100% accuracy
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Conduct vulnerability research across complex web applications and modern cloud-native infrastructures
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Product R&D & Innovation (20%):
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Collaborate directly with the development team to improve the AI agent’s scanning methodology, coverage, and test case validation
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Build security tools, scripts (Python), and prototypes to automate repetitive testing tasks and enhance the backend engine
Requirements:
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7+ years of experience in cybersecurity, with a heavy focus on advanced web application penetration testing
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The "Consultant Mindset": Proven experience in a client-facing role (e.g., as a Security Consultant or Pre-Sales Engineer) where you have presented technical findings to external stakeholders
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Technical Depth: Ability to identify complex, business-logic-driven vulnerabilities that automated scanners miss (multi-stage auth bypass, complex injection flaws)
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Automation Skills: Solid Python scripting skills to build security tools and automate workflows
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Startup DNA: You are proactive, flexible, and comfortable with the "controlled chaos" of a fast-growing startup. You don't just wait for tasks; you challenge requirements and propose better ways to work
Desirable:
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Experience securing AI/ML platforms or serverless architectures
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Expertise in AWS, GCP, or Kubernetes security
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Industry-standard certifications (OSCP, OSEP, CISSP)
Personal skills:
What`s in it for you?
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Care: your mental and physical health is our priority. We ensure comprehensive company-paid medical insurance and 4 additional undocumented sick leave days
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Tailored education path: boost your skills and knowledge with our regular internal events (meetups, conferences, workshops), Udemy license, language courses and company-paid certifications
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Growth environment: share your experience and level up your expertise with a community of skilled professionals, locally and globally
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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 & short Fridays
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Opportunities: we value our specialists and always find the best options for them. Our Internal Mobility Program helps change a project if needed to help you grow, excel professionally and fulfill your potential
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Global impact: work on large-scale projects that redefine industries with international and fast-growing clients
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Welcoming environment: feel empowered with a friendly team, open-door policy, informal atmosphere within the company and regular team-building events
About us:
At Ciklum, we are always exploring innovations, empowering each other to achieve more, and engineering solutions that matter. With us, you’ll work with cutting-edge technologies, contribute to impactful projects, and be part of a One Team culture that values collaboration and progress.
Based in Málaga, our team thrives in one of Andalusia’s leading tech hubs. Enjoy a hybrid work setup, the sunny Mediterranean vibe, and endless opportunities to grow your skills on global-scale projects.
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Explore, empower, engineer with Ciklum!
Interested already? We would love to get to know you! Submit your application. We can’t wait to see you at Ciklum.
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