Senior Security Engineer

Senior Security Engineer Truveta is the world’s first health provider led data platform with a vision of Saving Lives with Data. Our mission is to enable researchers to find cures faster, empower every clinician to be an expert, and help families make the most informed decisions about their care. Achieving Truveta’ s ambitious vision requires an incredible team of talented and inspired people with a special combination of health, software and big data experience who share our company values . This position is based out of our headquarters in the Greater Seattle Area and requires onsite presence 5 days per week. #LI-onsite Who We Need Truveta is rapidly building a talented and diverse team to tackle complex health and technical challenges. We are seeking candidates inspired by the opportunity to securely apply data in the development of real-world health solutions. Beyond core capabilities, we seek problem solvers, passionate and collaborative teammates, and those willing to roll up their sleeves while making a difference. We do things the right way. Our commitment to security and compliance assurance cannot be stressed enough. This position is critical to ensuring we are successful. If you are interested in the opportunity to pursue purposeful work, join a mission-driven team, and build a rewarding career while having fun, Truveta may be the perfect fit for you. This Opportunity Success in the healthcare industry is predicated on a foundation of trust. We demonstrate our trustworthiness as stewards of health data through three foundational pillars: security, privacy, and compliance. The successful candidate will design, implement and support solutions that support the company’s Digital Workplace strategy. They will work on leading edge technologies that help modernize endpoint management by leveraging the cloud to quickly deliver end-user improvements. Responsibilities Incident Response Handle investigation and response to security incidents across endpoints, identities, email, cloud workloads, and SaaS applications Act as a senior escalation point for SOC analysts during complex or ambiguous security events Participate in on-call rotations and provide senior-level escalation support when needed Lead or contribute to post-incident reviews (RCA, postmortems) and track remediation actions to completion Ensure incidents are accurately documented for audit, compliance, and operational learning Maintain and improve incident response runbooks, playbooks, and escalation procedures Support incident readiness activities, including tabletop exercises and response drills Detection Engineering Automation Develop, tune, and maintain Microsoft Sentinel analytics rules to improve detection quality and reduce false positives Design and optimize KQL queries for investigations, threat hunting, and detection engineering Integrate and maintain log sources and data connectors in Microsoft Sentinel, ensuring data quality and proper normalization Build and maintain SOAR automation and playbooks (Logic Apps) for alert enrichment, triage, and response Proactive Security Posture Perform proactive threat hunting across Microsoft Sentinel and Defender data to identify emerging or stealthy threats Monitor and continuously improve detection coverage and security posture (e.g., Secure Score, exposure signals) SOC Maturity Collaboration Track and report on SOC and incident metrics such as MTTD, MTTA, MTTR, alert volume, and detection effectiveness Partner with engineering and infrastructure teams to drive long-term remediation and risk reduction Contribute to the continuous improvement of SOC tooling, automation, and operational maturity Help define and improve SOC processes, workflows, and standards Mentorship Continuous Learning Mentor and guide SOC analysts and junior engineers through investigations and response activities Stay current on threat intelligence, attacker techniques (MITRE ATTCK), and the Microsoft securit ... (truncated, view full listing at source)