25 computer science internship jobs at 18 companies in Fairfax, VA
1mo
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Graduate (Year-Round) Internship – Digital Twin Development for Biorefinery Processes
Golden or Boulder or Washington
$45k-$71k/yr OnsiteInternship, Full Time
Graduate-level internship requiring programming in Python or C++, experience modeling chemical reactors (Cantera) and integrating CFD, GPA ≥3.0, enrolled or recently completed relevant degree in computational/engineering/physical/biological sciences.
Python, C++, Cantera, CFD, Aspen Plus, AnyLogic, TwinCAT, Siemens Xcelerator
2mo
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Data Science Intern - Chantilly, VA
Chantilly, Virginia, United States
$30-$38/hr OnsiteInternship
Pursuing degree in Mathematics, Statistics, Data Science, Computer Science, or closely related field; proficient in Python; experience with noSQL databases; data visualization; ML concepts; strong analytical skills; able to learn quickly; self-motivated with minimal supervision.
Python, Elasticsearch, MongoDB, Kibana, Matplotlib, MatLab, R
1w
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Computational Social Science Intern (Fall 2026)
Washington, District of Columbia, United States
$20/hr HybridInternship
Authorized to work in the U.S.; pursuing BA/MS in a quantitative or social science field; proficiency in Python/R, SQL, NLP, and data visualization; strong analytic and communication skills.
Python, R, SQL, Tableau, Superset, Microsoft Power BI, Microsoft Excel, Git, Jupyter, GCP, AWS, Narrative Analytics®
3w
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Summer 2027 Internship Program - Accounting Internship
Alexandria, Virginia, United States
$18-$28/hr HybridFull Time
Currently pursuing a BA/BS in Accounting, Information Systems, Computer Science, IT, or Business Administration with accounting concentration; ability to obtain interim U.S. Secret clearance; strong written and verbal communication.
6d
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Cyber Security Internship
Alexandria, Virginia, United States
OnsiteInternship
Currently pursuing a four-year IT, cybersecurity, computer science, or related degree in Virginia; requires basic hardware/software knowledge, troubleshooting, communication, teamwork, adaptability, and organization.
Sentinel, Kusto Query Language, Azure Active Directory (Azure AD), Microsoft Power Platform, Microsoft Power BI, Microsoft Dynamics CRM, SharePoint, Microsoft Teams, Azure, Virtual Machines (VMs), Virtual Networks, Role-Based Access Control (RBAC), FedRAMP, NIST 800-171
6d
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Applications Engineering Internship - Spring 2027
El Segundo or Washington or Huntsville
$33/hr OnsiteFull Time, Internship
Currently enrolled in an accredited undergraduate or graduate program in computer science, information systems, data science, engineering, or a related field; experience with SQL, Python, or low-code/ETL tools.
SQL, Python, Alteryx, dbt, Power BI, ERP, PLM, CRM, HRIS
1mo
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Communications Fall 2026 Internship
Washington, District of Columbia, United States
$1k-$2k/mo HybridMultiple Commitments Available
Minimum 3.2 GPA, relevant coursework (International Relations, Security Studies, Communications, Journalism, Political Science, Economics, Computer Science/STEM), Microsoft Office and basic Excel skills, minimum 22 hrs/week commitment, eligible to work in the U.S.; resume, cover letter, writing sample, and unofficial transcript required.
Microsoft Office, Microsoft Word, Microsoft Excel, HTML
3d
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Engineering Return Internship Program (SES)
Tysons, Virginia, United States
$18-$28/hr OnsiteInternship, Full Time
Previously interned with M.C. Dean and currently enrolled in a Bachelor of Science engineering or similar degree program; requires problem-solving, communication, computer use, and reliable travel.
automation systems, automation software, telecommunications systems, low voltage systems, fire detection systems, electronic security systems
1w
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Summer 2027 Software Developer Internship
Annapolis Junction, Maryland, United States
$26-$35/hr OnsiteFull Time
General Dynamics Information TechnologyNYSE: GD: Provides mission-critical IT services to government and defense organizations.
0+ YOEUndergraduate computer science/engineering students (≥2 years) or strong candidates with CS coursework; proficiency in Python, Java, C/C++, Rust, JavaScript/TypeScript; software design and SDLC knowledge; teamwork and presentation skills.
Java, Python, C/C++, Rust, JavaScript, TypeScript
3w
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Research Internship, Center for Defense Concepts and Technology, Fall 2026
Washington, District of Columbia, United States
$3k/mo OnsiteInternship
Current student or recent graduate in security/defense/computer science/astrophysics/aerospace or related field; proficient in Microsoft Office; strong research, writing, analysis, and communication skills; able to work 20+ hours/week onsite.
Microsoft Office
3w
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Software Engineering Intern
McLean, Virginia, United States
$50/hr OnsiteFull Time, Internship
Currently pursuing a Bachelors or Masters in Computer Science or Computer Engineering; full-time 40hr/week availability for a 10-week summer internship; strong AI/LLM fluency and foundational CS knowledge.
AI, LLMs, Appian
1d
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Software Development Engineer, Open Data Analytics - Engines
Arlington, Virginia, United States
$144k-$194k/yr OnsiteFull Time
2+ YOERequires programming experience, 2+ years of non-internship software development and design or architecture experience, strong computer science fundamentals, and proficiency in Java, C, C++, or C#.
SQL, Parquet, Apache Iceberg, Amazon S3, Java, C, C++, C#, Hadoop
2d
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Spring/Summer 2027 University Entry-level STEM Pipeline
Reston or Virginia or North America
$66k-$106k/yr OnsiteFull Time
0+ YOEPursuing or completing a BS/BA or MS/MA in an engineering, computer science, mathematics, or related field, with 0–2 years of experience through coursework or internships; U.S. citizenship required.
Microsoft Office
1w
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Data Engineer Analyst (WDP)
Chantilly or Herndon
OnsiteFull Time
0+ YOEActive TS or TS/SCI clearance required; 0-2 years experience or internship; Bachelor's in Computer Science/Information Systems/Engineering; SQL and Python; familiarity with cloud data platforms and data governance.
SQL, Python, Databricks, Snowflake, AWS S3, Azure Data Lake, Collibra, Alation, Airflow, Prefect, Terraform, Kafka
1mo
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Medical Technologist II - Automated Lab Services - Evenings - $10K hiring bonus
Silver Spring, Maryland, United States
$30-$43/hr OnsiteFull Time
0+ YOEBachelor's in clinical laboratory or related science and clinical lab rotation or equivalent; new graduates to 5 years' clinical lab experience; ASCP/AMT/NCA certification desirable; knowledge of lab methodologies, QA, accredited internship or documented training, basic computer literacy, English proficiency.
1mo
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Data Analyst Intern
Washington, District of Columbia, United States
$18-$28/hr HybridInternship
Must be enrolled in an accredited degree program (rising juniors/seniors, graduate, or post-doc). Pursuing data science/statistics/computer science or related. Familiarity with Excel, R, Python, SQL, Tableau or Power BI; strong data cleaning, analysis, communication, and teamwork skills.
Microsoft Office, Microsoft Excel, R, Python, SQL, Tableau, Power BI
2mo
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Information Technology Intern (Graduate Student)
Washington, District of Columbia, United States
$21/hr HybridFull Time, Internship
Must be an enrolled graduate student in Data Science/Computer Science/Applied Statistics, available full-time (40 hrs/wk) in summer; advanced Excel/PowerPoint/Word skills; college-level coding (Java, C/C++, Python); strong analytic and communication skills.
Microsoft Excel, Microsoft PowerPoint, Microsoft Word, Windows, Office Professional, Visio, SharePoint, Java, C/C++, Python, Microsoft Copilot, Copilot Studio, BERT
2mo
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AI Systems and Automation Intern
Arlington, Virginia, United States
OnsiteSeasonal, Internship
Enrollment in or recent completion of a degree in Computer Science, Data Science, Engineering, or related field; familiarity with cloud platforms (AWS, Google Cloud), big data (Hadoop, Spark), and Git; strong problem-solving and communication skills; must be legally authorized to work in the United States without visa sponsorship.
AWS, Google Cloud, Hadoop, Spark, Git
2mo
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BIM Technician Intern
Prince George's County, Maryland, United States
$20/hr RemoteInternship
Pursuing architecture/engineering/ construction management or computer science; willing to learn Autodesk Revit, AutoCAD, Revit API and ACC; available 35–40 hrs/week June 1–July 30, 2026.
Autodesk Revit, AutoCAD, Autodesk Construction Cloud (ACC), Revit API
1mo
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Summer Research Opportunity - Center for Computing Sciences (CCS) SCAMP
Bowie, Maryland, United States
$116k-$263k/yr OnsiteInternship, Temporary
PhD preferred (graduate students and exceptional undergraduates considered). U.S. citizenship and ability to obtain/maintain Top Secret clearance required. Strong experience with algorithms and programming and demonstrated research ability.