Expert Cyber Security Engineer

Ciklum is looking for an Expert Cyber Security Engineer to join our team full-time in Slovakia.

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, become a part of a cross-functional development team engineering experiences of tomorrow. This 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.

Responsibilities:

• 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?

• Strong community: Work alongside top professionals in a friendly, open-door culture that values initiative and empowers its people to succeed

• Fast-paced & agile environment: Be part of a dynamic, fast-moving organization that champions efficiency and innovation

• Global exposure: Collaborate with international, cross-functional teams and contribute to large-scale initiatives

• Tailored learning: Boost your skills with internal events (meetups, conferences, workshops), Udemy access, language courses, and company-paid certifications

• Flexibility: Balance office and remote work to fit your rhythm

• Care: Take advantage of our extensive benefits offering, aligned with the best market standards

The salary starts from 4000 Euro gross. The final salary depends on the previous experience and professional knowledge of the candidate.

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.
Our Slovakia hub brings together passionate professionals working on global initiatives. Be part of a close-knit team that’s driving digital transformation and creating lasting impact.

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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.