Expert Cyber Security Engineer

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

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 environment

• Growth focus: Take on large-scale projects with a global impact and expand your expertise

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

• Endless opportunities: Explore diverse domains through internal mobility, finding the best fit to gain hands-on experience with cutting-edge technologies

• Flexibility: Enjoy flexibility – full remote working possibilities

• Care: We’ve got you covered with company-paid medical insurance, mental health support, and financial & legal consultations

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.
With delivery centers in Wrocław and Gdańsk, our 300+ professionals in Poland drive forward-thinking solutions for global clients. Join a community where collaboration sparks innovation—and your impact reaches millions.
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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.