Sci Jobs

KBR is seeking an experienced Counterintelligence Officer to provide operational tradecraft, case management, and investigative support for intelligence operations at its Chantilly, VA site.

Agile Defense is hiring a Mid/Senior Data Scientist to develop NLP, entity-extraction, and generative-AI capabilities for a secure cyber analytics program supporting classified missions.

KBR is hiring an Operations Officer to apply clandestine tradecraft and regional expertise in recruiting and managing sensitive HUMINT sources in support of national security missions.

Serve as a Senior Help Desk Specialist delivering advanced, mission-critical IT support across classified and unclassified environments to maintain secure and reliable operations.

Senior Academic Instructor/SME needed to deliver and sustain advanced AOC/AFFOR command-and-control instruction and courseware for the 705th Training Squadron at Hurlburt Field.

Parsons is hiring an Innovative Learning Solutions Training Analyst to design, implement, and evaluate technical training programs for DoD/intelligence customers at Fort Belvoir.

Support migration of missile performance analyses into a cloud-native digital engineering pipeline by building and validating SysML-based MBSE models and scalable modeling workflows for defense customers.

Experienced engineering professionals with active TS/SCI (with agency-appropriate polygraph) and federal contract experience are sought to provide systems integration and technical services in support of Department mission requirements in Washington, DC.

Experienced GNC engineer needed at LLNL to design, analyze, and test guidance, navigation, and control systems for national-security and science spacecraft missions on-site in Livermore, CA.

Experienced MBSE engineer needed to develop and maintain system models for air-delivered nuclear weapon systems in support of acquisition and sustainment activities at KBR.

Senior Help Desk Specialist needed to deliver advanced support for classified and unclassified systems in a mission-driven, remote US role requiring an active DoD Top Secret/SCI clearance.

Lead rapid-prototyping research and algorithm development to deliver deployable sensing and C2 capabilities for defense systems at Anduril.

Experienced HR Specialist needed to manage administrative and personnel programs for the G1 staff at Fort Belvoir, requiring TS/SCI (T5) clearance and strong DoD HR knowledge.

Peraton is hiring a Cloud Reliability Systems Engineer to provide 24x7 on-site monitoring, troubleshooting, and incident response for a multi-tenant DoD cloud environment at Chantilly, VA.

Experienced Help Desk Specialist with an active TS/SCI (willingness to obtain CI Poly) needed to deliver classified-environment desktop and user support for DoD/IC clients at an on-site location.

Join Delinea as an Enterprise Account Manager focused on DoD/IC to drive federal sales, build strategic relationships, and close complex, high-value identity security deals.

Peraton seeks a seasoned Model Based Systems Engineer to lead MBSE activities, systems integration, and configuration management for enterprise IT and collaboration services at Fort Meade under a classified customer contract.

Paragon Cyber Solutions is hiring an Oracle System Engineer (Solaris/Oracle) with active TS/SCI to administer Oracle 19c on Solaris 11 and support mission-critical global operations.

CSG, Inc. is hiring a TS/SCI-cleared Senior Software Engineer to develop and secure high-performance Java/C++ applications and infrastructure at Ft. Meade.

Lead the design and implementation of automated RF test systems for Anduril’s Electromagnetic Warfare products, integrating state-of-the-art RF equipment and production test infrastructure.

Experienced Systems Engineer with an active TS/SCI + FSP needed to provide Tech Ops, cloud provisioning, and secure systems support for a mission-focused program based in Reston, VA.

Work at the intersection of autonomy, AI, and defense systems as a Software Engineer contributing high-performance algorithms and full-stack solutions for mission-critical deployments.

Amentum seeks an experienced Counter Threat Finance Analyst to produce TFI analysis, support DoD and interagency CTF operations, and develop targeting, reporting, and policy products for USCENTCOM.

Lead development of AI-powered code-transformation pipelines using Python and modern verification techniques for production-grade deployment to embedded systems.

Support mission-critical cybersecurity operations in Reston, VA as a Junior Cyber Security Officer, maintaining security posture, assisting incident response, and supporting IA/CND functions.

GDIT seeks an experienced Contracts Manager with active TS/SCI clearance to lead government contract negotiation, administration, and a team of contract administrators at our Herndon, VA facility.

Experienced systems engineer/architect with an active TS/SCI (with poly) is needed to design, automate, and harden hybrid infrastructure and platform services supporting mission-critical DCO operations.

Technical Writer needed to craft and govern high-quality technical documentation for engineering and operational systems in a cleared, mission-focused environment at CACI.

EXPANSIA is seeking a Junior Network Engineer to manage and sustain LAN/VPN services for AF DCGS at Beale AFB, ensuring reliable, secure communications for ISR missions.

Experienced SharePoint Engineer needed to lead SharePoint design, migrations, custom development, and administration for a DoD classified environment with TS/SCI clearance required.

Research Innovations, Inc. is hiring an experienced ISSO with an active TS/SCI clearance to manage RMF, NIST, and DoD security controls for classified and unclassified information systems in Melbourne, FL.

ORAU seeks an entry-level Security Assistant to support the FBI in Huntsville by executing clearance processing, database checks, security assessments, and administrative functions to maintain compliance with federal security standards.

Support DIA pre-employment and onboarding processes as a Human Resources Specialist II, coordinating candidate scheduling, data entry, and documentation while maintaining high standards of communication and accuracy.

QinetiQ Inc. seeks a Software Developer to design and maintain automation and testing tools for complex embedded and enterprise systems supporting defense and security customers.

Northstrat is hiring a Mid-Level Software Developer with an active TS/SCI (CI poly) to build secure Java microservices, drive test-driven development, and mentor junior engineers on in-person government contracts.

Experienced systems engineer needed to lead design and integration of ground systems for an aerospace defense program, with options for remote work if Secret-clearable or onsite if TS/SCI-clearable.

Nominal seeks a Deal Strategy lead to architect and operationalize complex USG and large-prime contracts, translate SaaS pricing into government-aligned models, and build scalable playbooks and security frameworks to accelerate growth.

Riverside Research is hiring a senior research scientist to design and develop secure parsers, MBSE tooling, and cutting-edge security technologies for DoD applications while supporting business development and proposal work.

Experienced strategic planner needed to lead and evaluate DoD-focused strategic plans, exercises, and performance metrics for a national security contractor.

Experienced Geospatial ETL Engineer with active TS/SCI + polygraph needed in Herndon, VA to build and automate geospatial data transformation pipelines and integrations for a mission-focused government program.

Amentum seeks a seasoned Transition Manager Senior to lead complex contract transitions for the FEDSIM U.S. Army National Guard program, ensuring continuity, knowledge transfer, and audit-ready documentation under TS/SCI requirements.

An experienced Senior Advanced Systems Engineer is needed to lead system architecture, integration, and deployment of ground operational systems for aerospace/defense programs (remote eligible with Secret clearance).

Peraton is seeking an experienced Technical Targeting Analyst to deliver all-source technical analysis and produce intelligence products in support of classified Intelligence Community missions.

Peraton requires a seasoned LAN/WAN Administrator to operate, secure, and troubleshoot USSOCOM network infrastructure at MacDill AFB in support of global mission operations.

Peraton is hiring a seasoned Network Engineer to lead design, security, and operations for DoD networks with COMSEC responsibilities and an active TS clearance.

Senior Network Engineer needed to deliver enterprise-level network design, integration, and Tier 3 support for SITEC EOM at Fort Bragg, requiring TS/SCI clearance and deep experience with DoD network architectures.

Peraton seeks a Data Management Support Systems Engineer to drive data interoperability and systems engineering for enterprise intelligence missions at Fort Meade.

Peraton seeks an experienced VDI Data Center Engineer to design and optimize secure, high-availability datacenter and hybrid-cloud infrastructure supporting classified DoD IT systems.

Seasoned IT program manager with active Top Secret clearance and SCI eligibility needed to lead and deliver complex DoD IT service contracts at Essnova Solutions.

Groundswell is hiring a Lead Technical Architect to lead secure Workday deployments and integrations for IC/DoD missions while bridging technical teams and stakeholders.