Expert Cyber Security Engineer

Ciklum; España; Híbrido; EUR 70.000 - 90.000; Jornada completa

Descripción de la vacante

A leading technology company in Spain is seeking an Expert Cyber Security Engineer to enhance security in web application development. The role involves proactive design and hands-on security validation, focusing on threat modeling, penetration testing, and risk mitigation. Ideal candidates should have over 7 years of experience, strong programming skills in Python, and deep knowledge in security domains. This position offers opportunities for professional growth and a flexible work environment.

Servicios

Comprehensive medical insurance

Tailored education path

23 vacation days

Flexible working hours

Internal Mobility Program

Formación

• 7+ years of experience in offensive and defensive security.
• Strong background in penetration testing of web applications.
• Experienced in building security tools and automation.

Responsabilidades

• Lead security design reviews and threat modeling.
• Research and build defense strategies against emerging threats.
• Perform penetration testing and security assessments.

Conocimientos

Penetration testing

Python

Security architecture

Cryptography

Network security

Communication skills (English)

Descripción del empleo

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: 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 a project if needed to help you grow, excel professionally and fulfill your potential
• Global impact: work on large‑scale projects that redefine industries with international and fast‑growing clients
• 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.

Want to learn more about us? Follow us on Instagram, Facebook, LinkedIn.

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.