Security Engineer, Microsoft 365 E5 Security Stack – Onsite

Sierra Central Credit Union; Don Mariano Marcos; On-site; PHP 7,371,007 - 8,906,633; Full time

Benefits offered by this job

Medical, Dental & Vision Insurance

401(k) Retirement Plan

Paid Time Off

Travel Expense Reimbursement

Telehealth Services

EAP

Job summary

Sierra Central Credit Union is seeking a ground-floor security engineering professional to design and operationalize a Microsoft 365 E5 security stack. You will own deployment, tuning, and roll-out of security controls across email, data loss prevention, and cloud collaboration tools.

You will lead phishing simulations, handle incident response with an MDR partner, and work with IT and business units to strengthen risk management and audit readiness.

Qualifications

• Minimum 4 years of hands-on security engineering experience in a Microsoft-centric enterprise.
• Deep working knowledge of Microsoft 365 E5 security and compliance capabilities and cloud file sharing technologies.
• Knowledge and experience with firewalls, VPNs, and network security practices.
• Demonstrated incident investigation experience: log analysis, endpoint and identity forensics, and post-incident documentation.
• Email security administration and phishing simulation program experience.
• Familiarity with risk management and audit practices in regulated environments.
• Strong written and verbal communication; able to explain risk to engineers and executives.
• Ability to work onsite at Yuba City headquarters.

Responsibilities

• Engineer, deploy, and tune the Microsoft 365 E5 security stack.
• Secure cloud file sharing across SharePoint Online, OneDrive, and Teams; design DLP labeling and governance.
• Administer and tune enterprise email security; anti-phishing controls and SPF/DKIM/DMARC posture.
• Own phishing simulation campaigns; design, execution, metrics, and remediation training.
• Lead incident investigation and response with MDR provider; triage and root-cause analysis.
• Support vulnerability management; analyze scans and coordinate remediation.
• Contribute to risk management, audits, and third-party risk reviews.
• Support privacy and data protection programs; GLBA alignment.
• Mentor junior security staff and act as security resource across the credit union.

Skills

Security engineering

Microsoft 365 E5 security

Incident investigation

Email security

Risk management

Communication

Onsite work

Tools

Microsoft Sentinel

Defender XDR

Entra ID

Intune

Purview

SharePoint Online

OneDrive

Teams governance

Job description

Sierra Central Credit Union is seeking a ground-floor security engineering professional to design and operationalize a Microsoft 365 E5 security stack. You will own deployment, tuning, and roll-out of security controls across email, data loss prevention, and cloud collaboration tools.

You will lead phishing simulations, handle incident response with an MDR partner, and work with IT and business units to strengthen risk management and audit readiness.