Senior Cyber Security Analyst

The Senior Cyber Security Analyst at Lumin Digital is responsible for monitoring, evaluating, and responding to threats targeting the company’s cloud-hosted digital banking platform. This position focuses on identifying vulnerabilities, supporting technical security controls, managing security incidents, and enhancing the organization’s cyber threat awareness. The analyst will also support compliance, audit, and risk management functions. Significant experience with SIEM platforms and Cyber Threat Intelligence (CTI) in large enterprise environments is critical to success in this role. Actively participate in the incident response lifecycle (detect, analyze, contain, eradicate, recover). Lead investigations by analyzing logs, artifacts, and memory dumps using both automated tools and manual techniques. Coordinate with internal and external stakeholders for high-severity events. Maintain and enhance threat models by mapping emerging threats to system architecture and business functions. Collaborate on red/purple team exercises and ensure coverage of relevant MITRE ATT&CK tactics. Integrate threat intelligence feeds (open-source and commercial) into monitoring tools. Perform threat hunting based on Indicators of Compromise (IOCs), Tactics, Techniques, and Procedures TTPs), and vulnerability intelligence. Regularly produce actionable threat reports tailored to organizational risk. Operate and fine-tune SIEM tools (e.g., Splunk, Sumo Logic, LogRhythm, QRadar, or Sentinel) to ensure effective detection and prioritization of alerts. Create custom correlation rules, dashboards, and alerts tailored to enterprise-scale environments.