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420 developer intern jobs at 225 companies in Gaithersburg, MD

2w
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Intern
Washington, District of Columbia, United States
OnsiteInternship
Search for Common Ground
Search for Common Ground: Resolves violent conflict through peacebuilding and community dialogue.
Current student pursuing a degree in international relations/conflict studies/development, English fluency, basic Microsoft Office and internet research skills, available 32–40 hours/week, academic stipend required.
Microsoft Office, Internet Search Engines
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1w
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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
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1mo
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2027 Software Engineer Intern
Costa Mesa or Irvine or Atlanta or Seattle or Boston or Reston
$45-$50/yr OnsiteInternship, Full Time
Anduril Industries
Anduril Industries: Defense technology building autonomous military hardware and software.
Pursuing a Bachelor\u0002s in CS or related field, rising senior returning to school, proficiency in C++, Go, Rust, Java, or Python, familiarity with algorithms, data structures, cloud and front-end concepts, and U.S. Person status required.
C++, Go, Rust, Java, Python, Lattice OS
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2mo
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Software Engineer Intern - Chantilly, VA
Chantilly, Virginia, United States
$30-$38/hr OnsiteInternship
ICR
ICR: Independent technology and consulting firm.
0+ YOEBachelor's in CS/CE/EE; proficient in Python, Java, HTML, JavaScript; Windows/Linux API knowledge; client/server experience; strong problem solving and communication; self-motivated team player.
Python, Java, HTML, JavaScript, Git, Jenkins, Windows API, Linux API
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1mo
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AI Developer Intern
McLean or Washington
HybridInternship, Full Time
iCatalyst
iCatalyst: Provides IT modernization and AI solutions to federal agencies.
Current college student in a STEM field; foundational Python and software development skills; exposure to AI/ML tools and cloud platforms; interest in LLMs, prompt engineering, and building AI applications; strong communication and problem-solving.
Power Apps, Power Automate, Azure AI, Python, Power BI, CMMI ML 3 DEV, ISO 9001:2015, ISO/IEC 27001:2022, RPA, Natural Language Processing (NLP)
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2d
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WBG Pioneer - AI Engineer Intern
Washington, District of Columbia, United States
OnsiteInternship
World Bank Group
World Bank Group: Providing financial and technical assistance to developing countries globally.
0+ YOEEnrolled in or final year of master's/PhD in CS, data science, AI, engineering or related; 0–2 years relevant experience; hands-on Python and LLM/project experience; familiarity with RAG, prompt engineering, cloud (Azure) and Git.
Python, LangChain, LlamaIndex, Microsoft Azure, Git, GPT
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4d
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Web Application Developer Intern
Falls Church, Virginia, United States
$20/hr OnsiteInternship
Mathtech
Mathtech: Provides consulting and technology services for government agencies.
Pursuing IT/CS degree, familiarity with Laravel or MVC frameworks, PHP and basic SQL, Windows and Linux command-line experience, strong problem-solving and communication skills, must be a U.S. Person per ITAR.
Laravel, Model-View-Controller (MVC), PHP, SQL, Microsoft Windows, Linux command line
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2mo
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Project Engineer Intern - Summer 2027
Sacramento or Oakland or Commerce or San Diego or Goodyear or Manassas
$21-$28/hr OnsiteFull Time
Helix Electric
Helix Electric: Provides electrical contracting and design-build services for complex projects.
Enrolled in a bachelor’s degree program; construction or engineering focus; internship or related experience preferred; strong communication, math, and organizational skills.
BIM, Accubid, Excel, AutoCAD, Microsoft Office
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1w
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Intern - Graduate
Washington, District of Columbia, United States
$21/hr OnsitePart Time, Temporary
Patient-Centered Outcomes Research Institute
Patient-Centered Outcomes Research Institute: Funds research comparing medical treatments to improve healthcare decisions.
Graduate-level students preferred; proficient in MS Office, Excel, SharePoint, Asana; strong written and oral communication, attention to detail; eligible to work and located in the US.
Microsoft Office Suite, Microsoft Excel, Microsoft SharePoint, Asana
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1mo
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Intern, WID
Arlington, Virginia, United States
$15/hr OnsiteInternship
National Defense Industrial Association
National Defense Industrial Association: Trade association for the United States defense industrial base.
Rising undergraduate senior, recent graduate, or graduate student with strong writing, communication, and critical thinking skills; self-motivated and eager to learn; able to conduct research and prepare reports.
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1mo
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Electrical Engineer Intern/Co-op Fall 2026
Cincinnati or Arlington or Prospect or Dublin or Annapolis or Charlotte or Richmond or Columbus
OnsiteFull Time, Internship
Legence
LegenceNASDAQ: LGN: Provides engineering and maintenance services for mission-critical building systems.
Pursuing a bachelor’s in electrical or architectural engineering (sophomore/junior preferred); AutoCAD/Revit experience preferred; proficiency with Microsoft Word and Excel; ability to work full-time onsite in Columbus and travel locally for site inspections.
AutoCAD, Revit, Microsoft Word, Microsoft Excel
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3mo
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CNO Developer
Fort George G Meade, Maryland, United States
$77k-$163k/yr OnsiteFull Time
Nightwing
Nightwing: Provides advanced cyber and intelligence solutions for national security.
5+ YOE5-7 years in C/C++ and Python; strong OS internals; knowledge of binary analysis tools; security-focused software development.
Python, C++, C, IDA Pro, Ghidra
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2w
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Appian Intern (Paid Internship)
Washington, D.C. or United States
$20/hr HybridInternship, Full Time
Horizon Industries
Horizon Industries: Provides IT and management consulting services to government clients.
Bachelor's in a technical field required; strong analytical, communication, and teamwork skills; eagerness to learn Appian low-code development; preferred familiarity with Java/Python/JavaScript/SQL and Agile.
Appian, Java, Python, JavaScript, SQL
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1mo
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Computer Engineer - Firmware/Software (Full-Time & Intern Positions)
Baltimore, Maryland, United States
$90k-$105k/yr OnsiteFull Time, Internship
Key Tech
Key Tech: An engineering that designs medical devices and provides a collaborative, employee-owned workplace.
0+ YOEOpen to interns and full-time applicants with 0–5 years experience; developing embedded algorithms, designing embedded architectures, and testing code for medical devices.
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1d
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Senior Forensic Developer
Washington or Chantilly
HybridFull Time
AnaVation
AnaVation: Providing technical engineering and cybersecurity solutions for federal agencies.
5+ YOE5+ years developing forensic/investigative tooling, bachelor\u0002s in CS or related, experience with OS internals/reverse engineering, evidentiary-grade forensic apps, and strong communication.
EnCase, AXIOM, X-Ways, Cellebrite, IDA Pro, Ghidra, radare2
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1mo
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Manufacturing Engineer Intern
Linthicum, Maryland, United States
$20/hr OnsiteFull Time, Internship
IDEX
IDEXNYSE: IEX: Designs and manufactures specialized fluidic, optical, and industrial systems.
Current college student or recent graduate (Maryland criteria), high school diploma, hands-on manufacturing interest, SolidWorks experience preferred, able to lift up to 35 lbs, strong communication and problem-solving skills.
SolidWorks
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1mo
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Business Development Intern
Arlington, Virginia, United States
OnsiteInternship
Telesat
TelesatNasdaq: TSAT: Operates satellites providing global communications and broadband internet services.
0+ YOECurrently enrolled in a bachelor's or master's program; U.S. citizen; strong communication, research, data analysis, Microsoft Office proficiency, attention to detail, and willingness to learn.
Microsoft Outlook, Microsoft Word, Microsoft Excel, Microsoft PowerPoint
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2w
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CNO Developer
Fort Meade, Maryland, United States
$83k-$140k/yr OnsiteFull Time
ManTech
ManTech: Provides technology solutions for defense and intelligence agencies.
0+ YOEExperience developing, testing, debugging, and maintaining CNO capabilities; proficiency in Python and C/C++; low-level internals knowledge (Windows, Linux, mobile, network devices); TCP/IP and socket programming; degree or equivalent experience; U.S. citizenship required.
Python, C, C++, TCP/IP
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1mo
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iOS-Savvy CNO Developer
Fort Meade or Maryland or Virginia or Colorado or Texas or Utah or Alaska or Hawaii or North America
OnsiteFull Time
Wyetech
Wyetech: Provides professional engineering services for government and commercial sectors.
1+ YOEUS citizenship and active TS/SCI with agency polygraph required. Degree in Computer Science/Computer Engineering, software development experience, at least 1 year of cybersecurity/CNO-specific development, iOS internals and reverse engineering skills.
iOS, Android
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1mo
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Intern- Corporate Partnerships Intern (Fall 2026)
Washington, District of Columbia, United States
HybridInternship, Part Time
D.C. United
D.C. United: Professional Major League Soccer team based in Washington, D.C.
Must be eligible for college credit, available for match days and up to 25 hrs/week Aug–Nov 2026, pass a background check; strong communication, organization, Microsoft Office proficiency, Photoshop preferred.
Microsoft Word, Microsoft Excel, Microsoft PowerPoint, Photoshop
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