120 security intern jobs at 81 companies in Gaithersburg, MD

1w
Save
Mark Applied
Hide
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
2w
Save
Mark Applied
Hide
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.
1mo
Save
Mark Applied
Hide
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
Save
Mark Applied
Hide
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.
1mo
Save
Mark Applied
Hide
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.
3w
Save
Mark Applied
Hide
Aerospace/Mechanical Engineering Intern
Washington, District of Columbia, United States
OnsiteFull Time
Technology Service Corporation
Technology Service Corporation: Develops advanced sensor systems and engineering solutions for defense.
Enrolled in accredited university pursuing Mechanical or Aerospace Engineering or related, U.S. citizenship required, ability to obtain DoD security clearance, good academic standing.
3w
Save
Mark Applied
Hide
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
1w
Save
Mark Applied
Hide
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.
23h
Save
Mark Applied
Hide
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.
3w
Save
Mark Applied
Hide
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
Save
Mark Applied
Hide
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.
4w
Save
Mark Applied
Hide
Research Internship, Technology and National Security, Fall 2026
Washington, District of Columbia, United States
HybridInternship, Part Time
Hudson Institute
Hudson Institute: A think tank conducting research on global policy and security.
Current student or recent graduate in political science, international relations, economics, security/technology studies; strong research, writing, editing and analysis skills; proficiency with Microsoft Office; able to work minimum 20 hours/week; interest in defense and China policy.
Microsoft Office
2w
Save
Mark Applied
Hide
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.
2mo
Save
Mark Applied
Hide
Software / Hardware Engineering - Intern
Annapolis Junction, Maryland, United States
OnsiteFull Time, Internship
Nightwing
Nightwing: Provides advanced cyber and intelligence solutions for national security.
Enrolled in a STEM Bachelor's or Master's program, experience with software programming or hardware logic circuits, ability to obtain and maintain a U.S. government security clearance, submit transcript with GPA and projected graduation date.
Python, C++
4w
Save
Mark Applied
Hide
Security and Emergency Services Manager
Catonsville, Maryland, United States
$69k-$86k/yr OnsiteFull Time
Erickson Senior Living
Erickson Senior Living: Operates campus-style retirement communities with comprehensive senior care services.
3+ YOEMinimum 3 years public safety or emergency leadership experience (internal:2 years SES assistant manager). Must be 21+, valid driver's license, 1+ year emergency responder experience, Emergency Medical Responder cert, BLS/CPR, OSHA 10, Maryland security guard cert; professional security certs preferred.
2w
Save
Mark Applied
Hide
Research Intern, Center for Peace and Security in the Middle East, Fall 2026
Washington, District of Columbia, United States
OnsiteInternship
Hudson Institute
Hudson Institute: Conducts public policy research and analysis to shape global policy.
Support Middle East research with data gathering, writing, editing, and administrative tasks; must be a current student or recent graduate with strong research and writing skills.
1mo
Save
Mark Applied
Hide
Aviation Security Specialist (Cyber and Counter-UAS)
McLean, Virginia, United States
$98k-$140k/yr OnsiteFull Time
Air Line Pilots Association
Air Line Pilots Association: Provides labor representation and safety advocacy for airline pilots
3+ YOEBachelor's in cybersecurity or related (or equivalent experience),3 years' aviation cybersecurity and/or counter-UAS experience,knowledge of U.S./Canadian civil aviation preferred,strong technical writing and communication skills,experience with federal/international aviation committees preferred.
Microsoft Word, Microsoft Outlook, Microsoft Excel, Microsoft PowerPoint
2w
Save
Mark Applied
Hide
E01-J01 Senior Program Protection & Technology Security Foreign Disclosure SME
Arlington, Virginia, United States
$180k-$225k/yr OnsiteFull Time
Aether Aerospace
Aether Aerospace: Defense technology platform providing engineering and manufacturing solutions.
12+ YOEActive Top Secret/SCI clearance, minimum 12 years program protection experience, expertise in acquisition security, foreign disclosure, threat and vulnerability assessments, and international collaboration frameworks.
1w
Save
Mark Applied
Hide
Internship | Public Safety – Corporate Security & Risk Management | 2026-2027
Towson, Maryland, United States
OnsiteInternship
Sheppard Pratt
Sheppard Pratt: Provides comprehensive mental health, education, and social services.
Undergraduate student in related field with interest in corporate security; must pass background and medical screenings; proficiency with Microsoft Office; strong communication, organization, and analytical skills.
Microsoft Word, Microsoft Excel, Microsoft Outlook, Microsoft PowerPoint, access control, video surveillance, incident reporting platforms
1mo
Save
Mark Applied
Hide
International Organizations Research Fall 2026 Internship
Washington, District of Columbia, United States
HybridInternship, Part Time
Foundation for Defense of Democracies
Foundation for Defense of Democracies: Provides research and analysis on national security issues.
Minimum 3.2 GPA, relevant coursework (international relations, security studies, history, communications, journalism, international economics, political science, computer science or STEM), Microsoft Office/Word and basic Excel, strong writing and research, 22+ hrs/week, eligible to work in the US.
Microsoft Office, Microsoft Word, Microsoft Excel