142 security intern jobs at 95 companies in Greenbelt, MD

2d
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Association Intern - National Security Space
Arlington, Virginia, United States
$18-$20/hr OnsiteInternship, Seasonal
Velos
Velos: Engineering and technical services provider for government agencies.
Bachelor's degree or anticipated degree in hospitality, event management, or related field; similar internship experience; Microsoft Office proficiency, database knowledge, and eligibility for U.S. security clearance.
Microsoft Office Suite, database, customer relationship management platforms (CRM)
2w
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Information Security Engineer Intern
McLean, Virginia, United States
OnsiteInternship
Appian
AppianNASDAQ: APPN: Provides a low-code platform for enterprise-grade process automation.
Currently pursuing a BS/MS in a STEM field, available full-time for a 10-week summer internship, returning to school after Summer 2027; demonstrated AI/LLM fluency; strong security interest and technical aptitude.
AI, LLMs
1w
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Security Specialist – International
Arlington, Virginia, United States
OnsiteFull Time
Armada Ltd.
Armada Ltd.: Provider of physical security, training, and risk management solutions.
10+ YOERequires 10 years of relevant experience and a Secret clearance. Requires a relevant master's degree, or bachelor's degree plus 4 additional years; knowledge of international security, DoD, and intelligence community guidance.
JADE, DISS, Microsoft SharePoint
3w
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Security Specialist - International Lead
Arlington, Virginia, United States
$110k-$170k/yr OnsiteFull Time
American Systems
American Systems: Providing engineering and IT solutions to federal government agencies.
10+ YOETop Secret/SCI clearance, 10+ years relevant experience with SAP/SCI environments or 14+ years with a bachelor's; knowledge of DoDM 5205.07 and ICD 705; ability to coordinate international security, prepare briefings and procedures.
4d
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Information Security Specialist
Alexandria, Virginia, United States
$144k-$197k/yr OnsiteFull Time
United States Department of Defense
United States Department of Defense: The executive department responsible for United States military forces.
1+ YOERequires one year of specialized experience at the GS-13 or GS-14 equivalent level developing or managing information security systems, coordinating international information sharing, and monitoring security policy compliance.
Defense Travel System (DTS)
4d
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Global Security Manager
Arlington, Virginia, United States
$150k-$170k/yr OnsiteFull Time
Spirit of America
Spirit of America: Provides private assistance to US troops and diplomats worldwide.
12+ YOEBachelor's degree required; 12–15+ years leading enterprise or international security, military operations, intelligence, diplomatic security, or global risk programs, including crisis management and geopolitical risk assessment.
International SOS
1mo
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Sr Security Engineer
Washington or United States
OnsiteFull Time
Constellis
Constellis: Provides private security, tactical training, and risk management services.
3+ YOE3+ years IT engineering experience, 5+ years incident response preferred. Ability to obtain Top Secret clearance. CISSP preferred. Knowledge of OS internals, endpoint security, APT/TTPs, and incident response tools.
SOAR, SIEM, EDR, Microsoft Excel
1mo
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Data Security Analyst
Richmond or Chantilly or United States
$100k-$121k/yr RemoteFull Time
Amentum
AmentumNYSE: AMTM: Provides engineering, technology, and mission support to government agencies.
5+ YOEBachelor's in CS/InfoSec, 5+ years data security experience in international or government environments, US citizenship, hands-on with cloud/on-prem data platforms, data classification, encryption/key management, DLP, and audit/compliance (FedRAMP/NIST).
Snowflake, Redshift, BigQuery, Databricks, Azure Synapse, Microsoft Fabric, Microsoft Purview, Collibra, Alation, AWS, Azure, GCP, AWS GovCloud, Azure Government, SIEM, TLS, SFTP, EDI, APIs, DLP, Python, SQL, PowerShell, FedRAMP, FISMA, NIST 800-53, CMMC, ITAR, GDPR, LGPD, PIPL, CCPA, CPRA, Schrems II, DoD SRG
2mo
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Intern – Space Software Engineering, National Security Space
Chantilly, Virginia, United States
OnsiteInternship
Redwire
RedwireNYSE: RDW: Manufactures infrastructure and hardware components for diverse space missions.
Currently enrolled in a Bachelor's, Master's, or Ph.D. in a relevant discipline; US work authorization per ITAR; willingness to work on a ~10-week, hands-on internship; background check required; strong teamwork and academic record.
21h
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Security Installation Supervisor/Manager
Springfield or United States
$50-$87/hr FieldFull Time
Parsons
ParsonsNYSE: PSN: Provides engineering and technology services for infrastructure and defense.
8+ YOERequires 8+ years in technical, electrical, electronic security, construction, or related work; installation-team leadership; OSHA 10 or 30; ability to obtain Secret clearance; and international travel.
Closed-Circuit Television (CCTV), Access Control Systems, Intrusion Detection Systems, Emergency Notification Systems, National Electrical Code (NEC), Microsoft?
1mo
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Intern to Entry Level Conversion – Business Functions (All) (Summer 2026 Intern Program)
Everett or Saint Charles or Portland or Charleston or Oklahoma City or Berkeley or Miami or Huntington Beach or Hazelwood or Germantown or El Segundo or China Lake or Arlington or Ridley Park or Tukwila or North Charleston or Kennedy Space Center or Fairfax or Houston or Colorado Springs or Chicago or Long Beach or Renton or Dallas or Seattle or Auburn or Philadelphia or San Antonio or Kent or Mesa
$50k-$174k/yr HybridFull Time
Boeing
BoeingNYSE: BA: Designs and manufactures aircraft, satellites, and defense systems.
Enrolled college student with graduation before August 2027; previous Boeing internship required. US Person required; some roles may require ability to obtain security clearance. Employer will not sponsor visas.
2d
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Summer 2027 Intern - Return Offer Only
McLean, Virginia, United States
$54k-$82k/yr OnsiteFull Time, Internship
Freddie Mac
Freddie MacOTCQB: FMCC: Purchases and securitizes home mortgages for the secondary market.
Summer internship for existing university-hiring return offers; applicants must follow company security, privacy, acceptable-use, and regulatory policies.
3d
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Cyber Engineering Intern
Arlington, Virginia, United States
$95k-$120k/yr OnsiteFull Time
Zetier: A technology developing cyber capabilities and low-level software systems.
Familiarity with C/C++, Python, OS kernel drivers, and cyber engineering; effective communication; ability to obtain and maintain a U.S. security clearance.
C, C++, Python, Ghidra, IDA Pro, gdb, 802.11ac, Zigbee, GSM, SATCOM, SDN, UHF/VHF, 5G, POSIX, WIN32 API, uBoot, IoT, x86, x64, ARM, AES-GCM, ECDSA, git, svn, mercurial, Android, iOS
1mo
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R&D Engineer Intern
State College or Reston
HybridPart Time, Internship
Penn State University
Penn State University: Provides higher education and conducts extensive academic research programs.
Undergraduate student studying engineering or related field with proficiency in Linux and programming (C, Python, bash, PowerShell); strong communication and teamwork; eligible for U.S. government security clearance.
Linux, C, Python, bash, PowerShell, Microsoft Word, Microsoft Excel, Microsoft PowerPoint
4d
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Federal Consulting Intern 2027
Herndon or United States
$47k-$86k/yr OnsiteInternship, Temporary
IBM
IBMNew York Stock Exchange: IBM: Global technology providing enterprise software, cloud, and consulting.
0+ YOEBachelor's degree required; strong collaboration, communication, leadership, adaptability, quantitative analysis, and client-focused problem-solving skills. Must obtain and maintain a federal security clearance.
JavaScript, HTML, XML, SQL
2w
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Strategic Relations Intern
Washington, District of Columbia, United States
$20/hr OnsitePart Time
Metrea
Metrea: Provider of effects-as-a-service to global national security partners.
Undergraduate or master's enrollment in relevant field, interest/experience in national security, strong writing, attention to detail, availability 24–30 hrs/week in-person, legal right to work in the U.S.
1w
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Military Operations Intern
Alexandria, Virginia, United States
$27-$33/hr OnsiteInternship, Part Time
Systems Planning and Analysis
Systems Planning and Analysis: Provides technical and analytical support to national security agencies.
2+ YOEPursuing a bachelor's or master's degree in a relevant field; 2+ years analyzing military operations or national security; strong analytical, communication, multitasking, and teamwork skills; U.S. citizenship and active Secret clearance.
1mo
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Physical Security Specialist II
Rosslyn, Virginia, United States
$108k-$115k/yr OnsiteFull Time
Cherokee Federal
Cherokee Federal: Provides specialized professional and technical services to federal government agencies.
Active Secret clearance required with ability to obtain Top Secret/TS/SCI; expert knowledge of physical security policy and standards; strong written and oral briefing skills; able to travel, including long international trips and high-threat environments.
2mo
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GDI Business Analyst Intern - OVIP
Austin or Reston
$18-$35/hr OnsiteFull Time, Internship
Oracle
OracleNYSE: ORCL: Provides cloud infrastructure and enterprise software for global businesses.
3+ YOEInternship for government/defense tech team; cybersecurity, NIST, security principles; US security clearance potential; strong communication and problem-solving; English proficiency.
3w
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International Security Specialist - Senior
Crystal City, Virginia, United States
$65k-$95k/yr OnsiteFull Time
Serco
SercoLondon Stock Exchange: SRP: Provides professional outsourcing services to governments worldwide.
10+ YOEU.S. citizenship, Bachelor’s degree (Master’s preferred), 10+ years security experience (DoD/program security preferred), ability to obtain/maintain Top Secret clearance, SAP eligibility preferred, strong communication and organizational skills.