Przemyslaw Koperski
Croydon,Greater London
Summary
Experienced in cyber security and cloud infrastructure, with a strong focus on SIEM and security platforms. Proficient in Azure Sentinel, including log ingestion, KQL query writing, analytical rules, and automation. Expertise in threat detection, incident response, and alert management. Skilled in automation, scripting, AI agent development, and Microsoft Copilot integration for security workflows. Adept at network security concepts and vendor integration through API connectivity. Committed to enhancing cyber security through detection engineering and rule development. Possesses strong problem-solving abilities and excels in cross-team collaboration, stakeholder management, dynamic and fast paced wok environments.
Overview
4
4
years of professional experience
Work history
Cyber Security Engineer
Fidelity International
, Surrey
2024.09 - Current
- Manage and maintain Azure Sentinel SIEM platform, including configuration, tuning, and optimization of analytical rules and alerting mechanisms
- Onboard new data sources and integrate third-party security solutions into SIEM infrastructure for enhanced threat visibility
- Develop and implement detection rules and automated responses to improve incident detection and response efficiency
- Developing and integrating AI solutions into workflows
- Handle SIEM incidents, outages, and escalations; liaise with vendor support teams to resolve technical issues affecting security operations
- Conduct alert tuning and false positive reduction to improve signal-to-noise ratio and analyst efficiency
- Collaborate with Detection and Response team to align security controls with organizational threat landscape
Cyber Defense Team Placement
Fidelity International
, Surrey
2022.06 - 2023.06
- Rotated through multiple functions including Threat Intelligence, Detection and Response, and Detection Engineering and Automation
- Gained hands-on experience with SIEM platforms, log analysis, and detection engineering methodologies
- Contributed to threat intelligence analysis and incident response activities
- Supported implementation of security protocols and detection rules
- Collaborated with cross-functional security teams to enhance organizational security posture
Education
BSc - Computer Science
University of Lincoln
Lincoln, EnglandSkills
SIEM & Security Platforms
- Azure Sentinel (log ingestion, KQL query writing, analytical rules, automation)
- Alert management and tuning
- Threat detection and incident response
Automation, scripting & AI
- Python
- SQL / KQL
- JavaScript
- Microsoft Copilot integration for security workflows
- Azure automation frameworks
- AI agent development and implementation
Cloud & Infrastructure
- Microsoft Azure (cloud security architecture and operations)
- Network security concepts
- Vendor integration and API connectivity
Cyber Security
- Detection engineering and rule development
- SIEM administration and optimisation
- Incident triage and response
- Threat analysis & risk assessment
Soft Skills
- Problem-solving and troubleshooting
- Vendor communication and stakeholder management
- Cross-team collaboration
- Documentation and communication
- Organising team building events
Timeline
Cyber Security Engineer
Fidelity International
2024.09 - Current
Cyber Defense Team Placement
Fidelity International
2022.06 - 2023.06
BSc - Computer Science
University of Lincoln