The Defense Security Service (DSS), formerly known as the Defense Investigative Service (DIS), plays a crucial role in safeguarding our Nation's security. As a Department of Defense (DoD) agency, DSS makes its contribution to the National Security Community by conducting personnel security investigations and providing industrial security products and services, as well as offering comprehensive security education and training to DoD and other government entities. To complement its three primary missions: the Personnel Security Investigations Program (PSI); the Industrial Security Program (ISP); and the Security Education, Training and Awareness Program, DSS offers the unique advantage of integrating counterintelligence into its core security disciplines through our training programs, policy development, and operational support to our field elements.

The mission of DSS is realized through the expert and dedicated efforts of approximately 2,500 employees strategically located throughout the United States and Puerto Rico. Almost one half of the DSS workforce is comprised of Special Agents who accomplish approximately 400,000 personnel security investigations each year. Another 220 DSS employees are Industrial Security Representatives who oversee, advise and assist more than 11,000 contractor facilities involved with classified contracts and research/ development efforts.

Description of Work
Working closely with the DSS CIO, we are responsible for furnishing necessary labor, materials and equipment required to perform general ADPE Technical Support Services. SEI provides technical expertise in the areas of: Database Development, Strategic Planning and Implementation, Requirement Defining and Management, and Help Desk Management.

1 - Internet, Intranet, Extranet development and sustainment services.
2 - Enterprise web portal development, deployment, and maintenance.
3 - JPAS Gateway sustainment services.