Endpoint and Data Security Engineer

Job Details: Job Description: About the Role Altera is seeking an experienced Endpoint and Data Security Engineer to manage and optimize Microsoft Defender, Microsoft Purview DLP, and Securiti.ai platforms. This role will strengthen endpoint protection, threat detection, data loss prevention, and sensitive data security across enterprise environments while supporting incident response, compliance, and continuous security improvement. Microsoft Defender Security Platform Engineering   Administer, configure, and optimize the Microsoft Defender Security suite, including:   Microsoft Defender for Endpoint  Microsoft Defender for Office 365  Microsoft Defender for Identity  Microsoft Defender for Cloud Apps  Microsoft Defender Vulnerability Management  Microsoft Defender XDR  Microsoft Defender for Cloud  Develop and maintain endpoint protection policies, threat detection capabilities, attack surface reduction controls, and automated response workflows.  Monitor platform health, security coverage, incidents, alerts, and detection effectiveness.  Configure and maintain endpoint protection, endpoint detection and response (EDR), device control, web protection, email security, identity protection, and cloud application security controls.  Improve threat detection fidelity while reducing false positives and operational overhead.  Support threat hunting, incident investigation, and remediation activities.  Lead security onboarding efforts for new business units, applications, and technologies.  Data Loss Prevention (Microsoft Purview)   Design, implement, and administer Microsoft Purview Data Loss Prevention controls across:   Endpoints  Microsoft 365  Exchange Online  SharePoint Online  OneDrive  Microsoft Teams  Cloud applications  Develop and maintain DLP policies protecting intellectual property, confidential data, regulated information, and business-critical assets.  Support data classification, sensitivity labeling, encryption, retention, and information protection programs.  Monitor policy violations, investigate incidents, and coordinate remediation activities.  Partner with business stakeholders to align data protection controls with operational requirements.  Develop reporting and analytics related to DLP effectiveness, violations, trends, and risk exposure.  Continuously optimize policy tuning, exception management, and user experience.  Data Security Posture Management (DSPM)   Securiti.ai Administration and Governance   Administer and optimize the Securiti.ai platform to identify, classify, monitor, and secure sensitive enterprise data.  Support enterprise-wide data discovery initiatives across:   Structured and unstructured data repositories  Cloud storage platforms  Collaboration environments  Enterprise applications  Data lakes and databases  Monitor data security posture and identify risks involving:   Sensitive data exposure  Data overexposure  Excessive permissions  Data residency concerns  Regulatory compliance gaps  Develop remediation plans for identified data security risks.  Partner with data owners, information governance teams, privacy teams, and security stakeholders to improve overall data protection maturity.  Support continuous compliance initiatives related to data governance and security requirements.  Security Operations and Incident Response   Monitor and triage endpoint and data security alerts generated through Microsoft Defender, Microsoft Purview, and Securiti.ai.  Assess security events to determine potential impact to endpoint, data, and information protection controls.  Collaborate with SOC and Incident Response teams by providing platform expertise, investigation support, relevant telemetry, and technical context.  Support incident investigations and remediation activities for events within the Endpoint and Data Security team’s remit.  Assist with containment, recovery, root-cause analysis, and corrective actions as directed by SOC or Incident Response leadership.  Analyze recurring alerts, attack trends, policy violations, and control gaps to recommend improvements across Defender, Purview DLP, and Securiti.ai.  Security Engineering, Governance & Compliance   Establish security standards, procedures, and technical controls supporting endpoint and data protection programs.  Support security audits, assessments, customer assurance reviews, and regulatory compliance initiatives.  Maintain documentation, control evidence, security baselines, and operational procedures.  Track remediation plans, exceptions, findings, and risk acceptance decisions.  Contribute to Zero Trust security initiatives and enterprise security transformation efforts.  Metrics, Reporting, and Continuous Improvement   Develop dashboards and reporting covering:  Defender security coverage and protection health  Endpoint compliance and device risk scores  Vulnerability remediation performance  DLP incidents and policy violations  Data classification coverage  Sensitive data discovery metrics  DSPM posture findings  Excessive access and data exposure risks  Security incident trends  Control effectiveness and adoption metrics  Drive continuous improvement initiatives to increase visibility, reduce risk, improve automation, and strengthen overall security posture.  Salary Range The pay range below is for Bay Area California only. Actual salary may vary based on a number of factors including job location, job-related knowledge, skills, experiences, trainings, etc. We also offer incentive opportunities that reward employees based on individual and company performance. $133,200 - $192,825 USD We use artificial intelligence to screen, assess, or select applicants for the position. Applicants must be eligible for any required U.S. export authorizations. #LI-MD1 Qualifications: Minimum Qualifications Bachelor's degree in Cyberse