Senior Security Assurance Engineer - CTJ - POLY Security Clearance

Position: Senior Security Assurance Engineer - CTJ - POLY with Security Clearance
Overview Microsoft is seeking a Industrial Senior Security Assurance Engineer to support classified U.S. Government programs and secure cloud operations. This role is responsible for the operational execution and day to day oversight of industrial security requirements for assigned programs and facilities, ensuring compliance with the National Industrial Security Program Operating Manual (NISPOM) and customer security directives. The Industrial Senior Security Assurance Engineer serves as a trusted security partner to program teams and corporate security stakeholders, ensuring inspection readiness, compliance execution, and protection of Microsoft's classified work and customer trust.

Microsoft's mission is to empower every person and every organization on the planet to achieve more. As employees we come together with a growth mindset, innovate to empower others, and collaborate to realize our shared goals. Each day we build on our values of respect, integrity, and accountability to create a culture of inclusion where everyone can thrive at work and beyond.

Responsibilities Industrial Security Operations
* Execute industrial security operations for assigned classified programs, SCIFs, and secure environments in accordance with NISPOM (32 CFR Part 117) and customer requirements

* Maintain SCIF and SAPF accreditation, including Fixed Facility Checklists (FFCs), self inspections, co utilization agreements, and coordination of material changes

* Oversee safeguarding practices including access controls, classified storage, visitor management, and security awareness activities

Personnel Security & Access Management

* Manage personnel access requests for classified and special access programs

* Coordinate clearance and access activities with FSOs, CPSOs, and government security offices

* Provide guidance to employees and managers on security responsibilities, reporting obligations, and compliance expectations Incident Response & Compliance
* Investigate and report security incidents, violations, and infractions in accordance with regulatory and customer requirements

* Maintain auditable security documentation and compliance artifacts to support government inspections, reviews, and internal audits

* Support inspections and remediation of findings within assigned authority Collaboration & Stakeholder Partnership
* Partner with Physical Security, HR, Legal, IT, Facilities, and Program teams to resolve operational security issues impacting classified environments

* Serve as the primary security advisor to assigned program teams

* Escalate systemic risks, policy interpretation issues, and compliance concerns to senior security leadership Continuous Improvement
* Contribute to the improvement of classified security processes, tools, and training

* Stay current on government security policies, directives, and customer requirements impacting assigned programs

* Embody our culture and values . Qualifications

Required Qualifications:

* Master's Degree in Statistics, Mathematics, Computer Science, Risk Management, Cyber Security, or related field AND 3+ years experience in software development lifecycle, large scale computing, threat modeling, cyber security, or anomaly detection OR Bachelor's Degree in Statistics, Mathematics, Computer Science, Risk Management, Cyber Security, or related field AND 4+ years experience in software development lifecycle, large scale computing, threat modeling, cyber security, or anomaly detection OR equivalent experience.

Other Requirements:
Security Clearance Requirements:
Candidates must be able to meet Microsoft, customer and/or government security screening requirements are required for this role. These requirements include, but are not limited to the following specialized security screenings:
* The successful candidate must have an active U.S. Government Top Secret Clearance with access to Sensitive Compartmented Information (SCI) based on a Single Scope Background Investigation (SSBI) with Polygraph. Ability to meet Microsoft, customer and/or government security screening requirements are required pre-offer and post-hire for this role. Failure to maintain or obtain the appropriate U.S. Government clearance and/or customer screening requirements may result in employment action up to and including termination.

* Citizenship & Citizenship Verification:
This position requires verification of U.S. citizenship due to citizenship-based legal restrictions. Specifically, this position supports United States federal, state, and/or local United States government agency customer and is subject to certain citizenship-based restrictions where required or permitted by applicable law. To meet this legal requirement, citizenship will be verified via a valid passport, or other approved documents, or verified US government Clearance

* Microsoft Cloud Background Check:
This position will be required to pass the Microsoft Cloud background check upon hire/transfer and every two years thereafter.

Preferred Qualifications:

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