Sr Cybersecurity Engineer

Job description

Job Summary At NiSource, our Enterprise Security department engineers sophisticated defenses to protect the critical cyber and operational infrastructure that powers our business. The Sr Cybersecurity Engineer – Insider Threat serves as a senior technical leader responsible for designing, engineering, and operationalizing capabilities that detect, prevent, and respond to insider risk across enterprise IT, cloud, and operational environments. This role focuses on the identification of malicious, negligent, and compromised-user behaviors through advanced monitoring, analytics, behavioral detection, and data protection controls. The Sr Cybersecurity Engineer partners closely with Security Operations, HR, Legal, Compliance, Privacy, and Data Governance to ensure insider risk capabilities are technically sound, legally defensible, and aligned to regulatory obligations (e.g., NIST CSF, NERC CIP where applicable). The engineer builds and sustains technical controls across identity systems, endpoint telemetry, DLP platforms, UEBA solutions, cloud environments, and security data platforms. This role is responsible for translating insider threat risk into actionable detection logic, automati...