HiringCafe
Join our community

261 engineer intern jobs at 128 companies in Leesburg, VA

2d
Save
Mark Applied
Hide
AI RAN Telecommunications Engineer Intern
McLean, Virginia, United States
$53k-$108k/yr HybridFull Time
Booz Allen Hamilton
Booz Allen HamiltonNYSE: BAH: Consulting and technology services for government and commercial clients
1+ YOEBachelor's in electrical engineering and 1+ year telecom engineering experience required; experience with RAN, AI/ML networking, Python, C/C++, cloud tools, RIC platforms, and O-RAN systems.
Python, C, C++, TensorFlow, PyTorch, ONNX, Kubernetes, OAI, srsRAN, xApps, rApps, RIC, 3GPP, RRC, PDCP, RLC, MAC, PHY, OSC, Nephio, Magma
Job PostingView all
1d
Save
Mark Applied
Hide
AI RAN Telecommunications Engineer Intern
McLean, Virginia, United States
$53k-$108k/yr OnsitePart Time, Internship
Booz Allen Hamilton
Booz Allen HamiltonNYSE: BAH: Provides technology and management consulting services to diverse organizations.
1+ YOERequires 1+ year telecom engineering experience, AI/ML networking experience, Python or C/C++, named AI and cloud tools, RAN knowledge, U.S. citizenship, and scheduled bachelor's completion by 2027 or 2028.
Python, C, C++, TensorFlow, PyTorch, ONNX, Kubernetes, OAI, srsRAN, xApps, rApps, 3GPP, O-RAN Alliance, RRC, PDCP, RLC, MAC, PHY, OSC, Nephio, Magma, AI, ML
Job PostingView all
14h
Save
Mark Applied
Hide
Mechanical Engineer Intern/Co-op Spring 2027
Annapolis or Arlington or Indianapolis or Boston or Lexington or Plano or Prospect or The Woodlands or Richmond or Charlotte
OnsiteMultiple Commitments Available
Legence
LegenceNASDAQ: LGN: Provides engineering and maintenance services for mission-critical building systems.
Pursuing a bachelor's degree in mechanical or architectural engineering; AutoCAD and Revit preferred; Microsoft Word and Excel proficiency; strong communication, teamwork, and local travel availability required.
AutoCAD, Revit, Microsoft Word, Microsoft Excel
Job PostingView all
14h
Save
Mark Applied
Hide
Mechanical Engineer Intern/Co-op Spring 2027
The Woodlands or Lexington or Plano or Arlington or Indianapolis or Boston or Prospect or Cincinnati or Annapolis or Charlotte
OnsiteMultiple Commitments Available
Legence
LegenceNasdaq: LGN: Engineering and maintenance services for mission-critical building systems.
Pursuing a bachelor's degree in mechanical or architectural engineering; AutoCAD and Revit preferred; Microsoft Word and Excel proficiency, communication skills, teamwork, and local travel availability required.
AutoCAD, Revit, Microsoft Word, Microsoft Excel
Job PostingView all
2d
Save
Mark Applied
Hide
Substation Electrical Engineer Intern - Grid (Summer 2027)
Elkridge, Maryland, United States
$18-$30/hr OnsiteMultiple Commitments Available
Sargent & Lundy
Sargent & Lundy: Engineering and consulting services for the power industry.
Active BS or MS enrollment, preferably in engineering; strong technical design, organization, problem-solving, and deadline-management skills. Coding, 3D modeling, AI, and related internship experience are valued.
Python, MATLAB, Microsoft Excel, 3D Modeling, Artificial Intelligence (AI)
Job PostingView all
4w
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
Job PostingView all
1w
Save
Mark Applied
Hide
Returning Intern Engineer - Summer 2027 - Mid Atlantic Division (For Current/Former HNTB Interns Only)
Arlington or Baltimore or Charlotte or Harrisburg or King of Prussia or North Charleston or Philadelphia or Pittsburgh or Raleigh or Scott Depot or Virginia Beach or Washington
$21-$36/hr OnsiteFull Time
HNTB
HNTB: Designs and manages large-scale transportation and infrastructure projects.
Current enrollment in an accredited post-secondary engineering program, high school diploma/GED, basic engineering/math understanding, Microsoft Office proficiency, and ability to perform basic engineering calculations.
Microsoft Office Suite
Job PostingView all
2mo
Save
Mark Applied
Hide
Electrical Engineer Intern – Signal Processing Focus - Chantilly, VA
Chantilly, Virginia, United States
$30-$38/hr OnsiteFull Time, Internship
ICR
ICR: Equal opportunity employer
Pursuing Electrical/Computer Engineering or closely related field; proficient in C/C++, Python; familiar with signal processing; good analytical and communication skills; ability to work with Windows/Linux; Git experience.
C/C++, Python, Matlab, Simulink, X-Midas, Git
Job PostingView all
6d
Save
Mark Applied
Hide
Intern - Eastern District - Fall 2026
Woodcliff Lake or Washington or Chicago or Decatur or Itasca or Cayuga or Kittery or Baltimore or Ellicott City or Portsmouth or Albany or Astoria or New York City or Homer City
$18-$25/hr FieldMultiple Commitments Available
Kiewit
Kiewit: Provides large-scale construction and engineering services for diverse infrastructure.
Pursuing an undergraduate or graduate degree in civil engineering, electrical engineering, construction management, or related field; able to travel, relocate, work full-time in summer, and access construction sites.
EPC
Job PostingView all
2w
Save
Mark Applied
Hide
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
Job PostingView all
2mo
Save
Mark Applied
Hide
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
Job PostingView all
3mo
Save
Mark Applied
Hide
Intern
Woodbridge, Virginia, United States
$22-$29/hr OnsiteFull Time
Terracon
Terracon: Provides geotechnical, environmental, construction, and facilities engineering services.
High school diploma and BS degree in progress in a science or related field; less than one year remaining.
Job PostingView all
2mo
Save
Mark Applied
Hide
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
Job PostingView all
1d
Save
Mark Applied
Hide
2026 Intern Conversion - Industrial Engineer I
Seattle or Van Horn or Denver or Huntsville or Florida or Arlington or Los Angeles or Longmont or Reston or California or Colorado or Washington or Virginia
$69k-$105k/yr OnsiteFull Time
Blue Origin: Develops reusable rockets and systems for human spaceflight.
Completed a 2026 Blue Origin internship, enrolled in or recently graduating from college, and holds a minimum B.S. in mechanical, aerospace, or astronautical engineering; U.S. work authorization required.
Defense Biometric Identification System (DBIDS)
Job PostingView all
1w
Save
Mark Applied
Hide
Robotics Intern
Washington, District of Columbia, United States
OnsiteFull Time
Technology Service Corporation
Technology Service Corporation: Develops advanced sensor systems and engineering solutions for defense.
Currently pursuing a Bachelors or Masters in engineering, math, or computer science; experience programming robotic systems; familiarity with reinforcement/imitation learning for manipulation; proficiency in C++ and Python; US citizen with Secret clearance.
C++, Python
Job PostingView all
2w
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
Job PostingView all
2d
Save
Mark Applied
Hide
Civil Engineering Intern
Ashburn, Virginia, United States
$31-$32/hr OnsiteInternship
Kimley-Horn
Kimley-Horn: Provides professional planning, engineering, and design consulting services.
Engineering student pursuing an ABET-accredited bachelor's or master's degree in civil, environmental, mechanical, biological, biosystems, chemical, agricultural engineering, or engineering technology.
AutoCAD, Revit, Civil 3D, Microsoft Excel, MicroStation, VISSIM, OpenRoads, Synchro, GIS
Job PostingView all
1mo
Save
Mark Applied
Hide
Intern to Entry Level Conversion - Engineering (Summer 2026 Intern Program)
Seattle or Saint Charles or Huntsville or Portland or Midwest City or Oklahoma City or Berkeley or Miami or Huntington Beach or Hazelwood or Germantown or El Segundo or Fort Walton Beach or Ridgecrest or Tukwila or North Charleston or Kennedy Space Center or Heath or Houston or Fairfax or Colorado Springs or Seal Beach or Long Beach or Newburgh or Renton or Saint Louis or Auburn or Philadelphia or Everett or San Antonio or Kent or Mesa or New Orleans
$50k-$174k/yr OnsiteFull Time
Boeing
BoeingNYSE: BA: Designs and manufactures aircraft, satellites, and defense systems.
Currently enrolled engineering/applied-sciences student with expected graduation before September 2027; previously interned with Boeing; strong academics, collaboration, and technical project experience; ability to meet export-control U.S. Person requirements for many roles.
Job PostingView all
1w
Save
Mark Applied
Hide
Water/Wastewater Engineering Intern
Fairfax, Virginia, United States
$19-$30/hr OnsiteInternship
Dewberry
Dewberry: Professional firm providing engineering, architecture, and environmental consulting services.
Pursuing a bachelors or masters in Civil Engineering; strong communication and teamwork; CADD proficiency a plus; previous internship preferred; must have work authorization (no sponsorship).
CADD
Job PostingView all
1mo
Save
Mark Applied
Hide
Transportation Engineering Intern
Fairfax or Washington or Virginia or Maryland
OnsiteInternship
Gorove Slade
Gorove Slade: Multimodal transportation engineering and infrastructure planning services.
Pursuing a bachelor\u0002s in civil engineering or related field, interest in transportation planning, exposure to GIS and data analysis, strong communication and teamwork; experience with Vistro, Sidra, Synchro, SimTraffic is desirable.
Vistro, GIS, Sidra, Synchro, SimTraffic
Job PostingView all

Explore Jobs

Expand Your Job Search