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Senior Cyber Security Analyst


Job Location:

Warsaw - Poland

Monthly Salary: Not provided by the employer
Posted: 3 October 2026 (11 hours ago)
Application Deadline: 31 December 2026
Vacancies: 1 Vacancy

Job Summary

  • Monitor and investigate potential security threats using tools such as Kibana/OpenSearch and Snowflake. 
  • Analyze security logs and investigate suspicious or unusual activity including spikes in traffic unexpected changes in attack patterns and new or disappearing attack signals. 
  • Determine whether detected activity is malicious or benign and identify the appropriate response including detection engineering to block malicious activity when needed. 
  • Develop tune and deploy detection rules based on traffic behavior HTTP request attributes headers device fingerprints and other indicators to mitigate malicious activity. 
  • Monitor existing detections and known attack patterns to make sure they continue to work as expected and identify any unusual changes in volume sources IPs domains or other indicators. 
  • Support customer onboarding by analyzing web application traffic flows and configuring baseline detection and protection rules. 
  • Investigate customer-reported incidents and missed detections analyze attack traffic and implement mitigations to improve protection coverage. 
  • Document newly discovered threats and attacks including evidence findings and indicators. 
  • Communicate findings to Engineering and other stakeholders and provide the necessary technical details to support remediation and improvements to detection and protection mechanisms. 
  • Partner directly with counterparts through a ticketing system and support portal to investigate issues provide updates and resolve security-related requests. 

Qualifications :

  • 35 years of experience in Cybersecurity Threat Research or Threat Intelligence
  • Bachelors degree in Computer Science Cybersecurity Information Security or a related field
  • Strong understanding of web technologies and networking fundamentals including HTTP/HTTPS TCP/IP DNS authentication cookies and browser-server interactions
  • Experience in web security research bot management fraud detection or related domains
  • Hands-on experience with threat investigations IOC analysis and threat intelligence research
  • Experience with log analysis and investigation platforms such as Kibana/OpenSearch Snowflake Datadog or similar tools
  • Strong SQL skills including working with large datasets and UDFs
  • Basic knowledge of JavaScript for web and client-side analysis
  • Strong analytical and problem-solving skills
  • Ability to work independently and manage investigations with minimal supervision
  • Strong communication and collaboration skills
  • Passion for cybersecurity and continuous learning

NICE TO HAVE:

  • Knowledge of MITRE ATT&CK malware analysis vulnerabilities and adversary TTPs
  • OSINT and cyber threat intelligence research experience
  • Python and Jupyter Notebook experience for investigations and automation
  • Experience with GitHub and version control workflows

Remote Work :

Yes


Employment Type :

Full-time


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