23,246 sci jobs at 1,235 companies in United States
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Systems Engineer-TS/SCI with Poly
Laurel, Maryland, United States
$132k-$290k/yrOnsiteFull Time
CACINYSE: CACI: Provides information technology and professional services to government clients.
14+ YOETS/SCI with Poly clearance; 14+ years SE/IT architecture experience; BS in a related field; strong communication and leadership; on-prem and cloud architecture experience.
Lockheed MartinNYSE: LMT: Designs and manufactures global security and aerospace systems.
12+ YOE4+ MgmtBachelor's in engineering or related discipline, ability to obtain DoD Secret clearance, experience leading multidisciplinary engineering teams, knowledge of Vee process, DevSecOps, Agile (Scrum/Kanban), EVM, and automation of manual tasks.
ManTech: Provides technology solutions for defense and intelligence agencies.
3+ YOECurrent TS/SCI clearance with CI polygraph, 3+ years SCI security experience, DISS/JPAS training within 6 months, familiarity with DoD/IC security policy, and bachelor’s degree or equivalent experience.
New Mexico State University: Public land-grant university providing comprehensive education and research.
Master's degree in Home Economics, Family & Consumer Science, Nutrition, Health Education, Family & Child Development or related field; experience in 4-H or Extension work; willingness to travel; valid driver's license.
Dalcom Engineering: Provides engineering and software solutions for defense applications.
3+ YOEBachelor's in engineering,3+ years professional engineering experience,active TS/SCI clearance,proficiency with engineering software and analytical tools,strong analytical and communication skills,ability to show HUBZone residency.
Plus3 IT Systems: Architects secure cloud and AI solutions for federal agencies.
Active TS/SCI with SCI eligibility; DoD 8140 certifications; AWS experience; OpenShift/Kubernetes; Linux admin; DevSecOps tools; U.S. citizenship required for federal contract.
GDITNYSE: GD: Delivers IT and mission services to government agencies.
10+ YOEActive TS/SCI clearance required (must be able to obtain TS/SCI + polygraph), US citizenship, 10+ years experience, DoD 8570 IAT Level II cert (e.g., Security+ or equivalent), experience with Citrix, Azure Virtual Desktop, PowerShell/Python, SQL clustering, Windows 10/11 SOE, RDS/Windows Server, and ATO processes.
Citrix XenDesktop, Citrix NetScaler, Citrix Virtual Apps, Citrix Virtual Desktops, Citrix ADC, Citrix Provisioning, Citrix AppLayering, Enterprise Layer Manager (ELM), VMware VDI, Microsoft Azure Virtual Desktop, Microsoft PowerShell, Python, SQL Clustering Failover, Microsoft Windows 10, Microsoft Windows 11, Remote Desktop Service (RDS), Microsoft Windows Server 2019, Microsoft Windows Server 2022, Authorize to Operate (ATO)
Vantor: Providing AI-powered spatial intelligence and high-resolution Earth observation.
5+ YOETS/SCI clearance, Bachelor's degree, 5 years experience in lab/R&D infrastructure, networking and virtualization, on-site in Annapolis Junction, MD.
Sunayu: Engineering technology and DevSecOps solutions for defense and intelligence missions.
8+ YOEActive TS/SCI with poly; DoD 8570 IAT II+; 8-12 years systems engineering; BS in CS/Engineering; AWS experience; Linux; scripting; containerization; IaC.
VMD Corp: Provides airport security screening and federal IT services.
2+ YOEActive TS/SCI clearance with polygraph, 2+ years software experience (Python microservices), Kafka, Elasticsearch, Kubernetes, containerization, CI/CD, Linux scripting, and strong communication skills.
Monroe County Intermediate School District: Provides regional educational services and administrative support for schools.
Support staff instructional paraprofessional position for elementary SCI at the Educational Center. Posting date 6/29/2026; available 08/18/2026; internal closing date 07/07/2026.
Command Holdings: Provides management consulting and technology services to federal agencies.
3+ YOEBachelor's in a quantitative field,3+ years data analysis experience,active TS/SCI clearance,proficiency in SQL,Tableau or Microsoft Power BI,and Python or R;strong statistics,visualization,and communication skills.
SQL, Tableau, Microsoft Power BI, Python, R, Snowflake, Databricks, Microsoft Office
General Dynamics Information TechnologyNYSE: GD: Provides mission-critical IT services to government and defense organizations.
10+ YOEActive TS/SCI clearance with ability to obtain polygraph; DoD 8570 IAT Level II; Bachelor’s in a related technical field; Exchange expertise; PowerShell and Active Directory experience; 10+ years related experience.
PowerShell, Active Directory, Microsoft Exchange Server, Exchange Edge installations, System testing and vetting, ATO and Project Management
CACI InternationalNYSE: CACI: Provides information technology and engineering services for government agencies.
3+ YOEActive US citizenship with TS/SCI clearance, licensure as a Master Electrician (or equivalent), minimum 3+ years electrical experience (or 10–12 years alternative paths), ability to lift 50 lbs, and up to 25% travel.
Vibrint: Provides mission-critical systems and data analysis for national security.
TS/SCI with CI poly required; design, implement, and maintain networks; install/configure routers, switches, firewalls, VPN gateways, DNS/DHCP; monitor performance and security; troubleshoot outages; integrate with cloud and virtualized environments.
Johns Hopkins University Applied Physics Laboratory: Conducts research and engineering for national security and space.
Bachelor's in a relevant field, proficiency with OWL/RDF/RDFs, SPARQL, ontology development and editors/tools, ability to work independently or on teams, strong analytical and communication skills, active TS/SCI clearance and U.S. citizenship required.
Ontology Web Language (OWL), Resource Description Framework Schema (RDFs), Resource Description Framework (RDF), SPARQL, TopBraid Composer, Protégé, ROBOT, rdflib, Apache Jena, Sesame, RDF4J, GraphDB, Stardog, Jena Fuseki, SHACL, SPIN, GIT, Python, Basic Formal Ontology (BFO), The Common Core Ontologies (CCO), SOSA/SSN, Time Ontology, OBO Foundry, Dublin Core, SKOS, QUDT, GeoSPARQL