Activity Security Representative

MANTECH is a leading provider of innovative technology solutions and professional services to government agencies and commercial clients. Known for its commitment to delivering quality, complex, and mission-critical projects, MANTECH serves as a trusted partner across a broad spectrum of industries including defense, intelligence, and civilian sectors. The company specializes in areas such as cybersecurity, intelligence analysis, systems engineering, and software development, ensuring that its clients receive the most advanced and tailored support to meet their evolving needs. With a strong presence in El Segundo, CA, MANTECH fosters a dynamic work environment that prioritizes continuous learning, employee growth, and cutting-edge technological advancements.

The Activity Security Representative (ASR) role at MANTECH is a full-time, in-office position based in El Segundo, California. This role is integral to supporting the security infrastructure necessary for Collateral, Sensitive Compartmented Information (SCI), and Special Access Program (SAP) activities within the customer’s facility and organization. The ASR will leverage their strong technical background to provide multi-disciplined security support focused on maintaining the integrity and protection of classified materials and information.

The position involves managing classification reviews of inbound and outbound correspondence, maintaining document accountability databases, and processing classified materials with strict adherence to security protocols. Responsibilities extend to handling electronic data transfers to internal customers, managing visitor access through detailed logging and escorting, and assisting in the preparation and maintenance of facility access control badges and entry systems. The ASR plays a pivotal role in conducting entry and exit inspections, performing data entry into personnel security databases, and upholding customer Standard Operating Procedures. This role also supports security awareness and education initiatives to ensure continuous compliance and enhance overall security posture.

Individuals suited for this role will possess a background or experience related to SCI programs and SAP personnel security functions, including familiarity with relevant databases such as SIMS, JPAS/DISS, and Joint Access Database Environment (JADE). Successful candidates should demonstrate a keen attention to detail, strong organizational skills, and the ability to work effectively in a fast-paced, security-focused environment. MANTECH values professionals who are proactive, self-motivated, and capable of collaborating with diverse teams, including Department of Defense personnel, military, and industry partners. This role requires a candidate with a current Top-Secret Clearance with SCI Eligibility and eligibility for access to Special Access Program Information, underscoring the sensitivity and critical nature of the responsibilities involved.

Overall, the ASR position offers a unique opportunity to contribute to high-stakes security operations in a reputable organization dedicated to advancing national security interests. MANTECH provides a supportive and inclusive workplace that fosters professional development and offers competitive benefits to its employees, making it an ideal destination for career-oriented individuals passionate about security and technology.