Senior Security Engineer

Ciklum is looking for a Senior Security Engineer to join our team full-time in Ukraine.

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 a Senior Security Engineer, become a part of a cross-functional development team engineering experiences of tomorrow. Together, we will work on the project for a global leader in the leisure, travel and tourism sector, delivering secure and scalable technology that enables a high-quality end-to-end customer experience. You will be responsible for the operation and constant security optimisation and adoption of the Web Application Firewall infrastructure as well as for website performance optimisation and security using the full suite of AWS tools. Furthermore, you work with global teams in the organisation to enhance their security posture.

Responsibilities:

• Secure coding, secure design and security automation skills and capabilities in domains

• Full ownership of complex topics or multi-faceted initiatives and outcomes spanning across your domain

• Creating software products that are secure by default and working collaboratively with software engineers, cloud engineers and architects to ensure information security is considered throughout the design and implementation of software products and services

• Tooling and automation to identify possible threats and vulnerabilities before they are promoted to production, helping to protect customer data

• Taking an engineering approach to solving security problems, selecting and guiding teams to use the right tools for the right jobs to solve business and technical challenges efficiently

• Taking the initiative to translate ideas into outcomes

• Regularly coaching, guiding and developing more junior colleagues

• Being responsible for the operation, ongoing optimisation and adoption of the Client's Web Application Firewall infrastructure

Requirements:

• Proficient experience in working with CDN and WAF solutions like Akamai, AWS or Cloudflare. Bot detection, DDoS protection, cache optimisation
• Deep knowledge and hands-on experience on Web technologies - RFC's, request/response lifecycle, DNS, protocols, status codes, cookies, headers, proxies, certificates, browsers, caching, etc.
• Advanced experience in designing secure, highly available, distributed applications in an Amazon Web Services (AWS) environment. EKS, Lamdba functions, CloudFront, S3, API Gateways knowledge is preferable
• AWS Certified Cloud Practitioner
• Ability to understand and analyse complex security events as well as adjust the resulting ongoing security profiles
• Monitoring experience - Datadog, Grafana. Trend analysis, deep investigation, issue tracking
• Experience in defining, planning, implementing, maintaining, and upgrading security measures, guardrails and controls for WAF and CDN
• Familiar with information security standards & practices and their practical implications
• Experienced in securing APIs, REST API and GraphQL API using AWS AppSync
• Deep automation skills, hands-on with some programming languages such as Python
• Advanced experience with CI/CD, preferably Gitlab CI
• Being customer centric, passionate about delivering great digital products and services
• Passionate about continuous improvement, collaboration and great teams
• Strong problem-solving skills coupled with good communication skills
• Understanding of social and ethical implications of software engineering
• Open minded, inquisitive, life-long learner
• Comfortable with ambiguity, highly autonomous

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 radical flexibility – work remotely or from an office, your choice

• Care: We've got you covered with company-paid medical insurance, mental health support and financial and 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.
As one of Ukraine's largest IT companies and a top employer recognized by Forbes, we have spent over 20 years delivering meaningful tech solutions. We proudly support diverse talent and military veterans, recognizing the unique skills and perspectives they bring to shaping the future.

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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.