We are seeking a highly skilled and motivated Senior Cloud Security Specialist to join our team, where you will play a pivotal role in strengthening our cloud security infrastructure. This position focuses on managing and optimizing Web Application Firewall (WAF) configurations, analyzing traffic logs, and collaborating with cross-functional teams to ensure robust cloud security measures across all business-critical websites and domains.Responsibilities Deploy and audit baseline WAF rules across all in-scope websites and domains using internal tooling Review WAF logs in Cloudflare to identify legitimate traffic and assess rule impact Transition WAF rules from log mode to block mode following thorough analysis and stakeholder approval Apply and manage exceptions to WAF rules, ensuring minimal impact on security posture Raise and manage ServiceNow change requests for rule updates and deployments Maintain and update weekly progress reports and tracker spreadsheets for leadership visibility Collaborate with internal stakeholders including website owners, InfoSec, and platform teams Use GitHub-hosted tools and scripts to automate and streamline rule deployment and reporting Requirements Bachelor’s degree in Cybersecurity, Computer Science, Information Technology, or a related field 3+ years of experience in managing cloud security infrastructure Strong understanding of Cloudflare WAF, including Managed Rulesets, OWASP Core Ruleset, and WAF Attack Score Proficiency in Linux command line, bash scripting, and tools like jq for JSON parsing Experience with log analysis and identifying false positives in HTTP event logs Familiarity with Cloudflare dashboard and filtering techniques (IP, ASN, request paths) Working knowledge of GitHub for accessing and managing internal tools Excellent command of written and spoken English (B2+ level) Nice to have Background in Information Security, DevSecOps, or Security Operations Familiarity with networking concepts (e.g., IP addresses, ASNs) We offer We gather like-minded people: Engineering community of industry professionals Friendly team and enjoyable working environment Flexible schedule and opportunity to work remotely within Poland Chance to work abroad for up to 60 days annually Business-driven relocation opportunities We provide growth opportunities: Outstanding career roadmap Leadership development, career advising, soft skills, and well-being programs Certification (GCP, Azure, AWS) Unlimited access to LinkedIn Learning, Get Abstract, Cloud Guru English classes We cover it all: Stable income (Employment Contract or B2B) Participation in the Employee Stock Purchase Plan Benefits package (health insurance, multisport, shopping vouchers) Strategically located offices featuring entertainment and relaxation zones, table tennis and football, free snacks, fantastic coffee, and more Referral bonuses Corporate, social and well-being events Please, note: The set of bonuses might vary based on the role you apply for – specifics will be discussed with our recruiter during the general interview We will reach out to selected candidates exclusively EPAM is a leading global provider of digital platform engineering and development services. We are committed to having a positive impact on our customers, our employees, and our communities. We embrace a dynamic and inclusive culture. Here you will collaborate with multi-national teams, contribute to a myriad of innovative projects that deliver the most creative and cutting-edge solutions, and have an opportunity to continuously learn and grow. No matter where you are located, you will join a dedicated, creative, and diverse community that will help you discover your fullest potential.