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480 entry software engineering jobs at 198 companies in Leesburg, VA

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Founding Full-stack / Product Engineer
Cupertino, CA, US
$130k-$300k/yr On-SiteFull Time
HiringCafe
HiringCafe: Building a 100× better job search engine to take on Indeed and LinkedIn.
Help us build a 100× better job search engine. We need a full-stack engineer with great taste, sharp fundamentals, and a track record of shipping polished product on React/Next.js plus a real backend (Firebase, Elasticsearch, Redis, Stripe).
React, Next.js, TypeScript, Firebase, Elasticsearch, Redis, Stripe
Help us #BeatIndeed & #BeatLinkedIn
2mo
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Software Engineering Intern
Annapolis Junction, Maryland, United States
OnsiteInternship
Entegra Systems
Entegra Systems: Provides engineering and intelligence analysis for government missions.
0+ YOEStudent pursuing a Bachelor's in CS/Software Engineering; interest in VR, OO programming; able to learn and work in a team.
Message Queues, DDS, REST, Networking, Data Modeling, Storage, Software Libraries
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1mo
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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++
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2mo
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Software Engineering Intern
Washington, District of Columbia, United States
HybridInternship
Social Impact
Social Impact: Provide management consulting for global development effectiveness.
0+ YOEPursuing CS/SE/Data Science degree; strong problem-solving; able to work independently and with others; interest in scalable enterprise systems; US citizen; DC area; internship; background check.
Node.js, React, Python, PostgreSQL, REST APIs, Git/GitHub
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3w
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Entry Software Engineer
Washington, District of Columbia, United States
OnsiteFull Time
Regulus Group
Regulus Group: Provides engineering and program management for air traffic modernization
5+ YOEBachelor's in engineering or computer science, 5 years relevant experience in surveillance/navigation/communications or air traffic systems, eligibility for US Public Trust security clearance, strong interpersonal and communication skills.
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2d
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Software Engineering Intern
McLean, Virginia, United States
$50/hr OnsiteFull Time, Internship
Appian
AppianNASDAQ: APPN: Provides a low-code platform for enterprise-grade process automation.
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
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2mo
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Engineering Apprentice (Software/Systems/Hardware)
Manassas, Virginia, United States
OnsiteFull Time
Lockheed Martin
Lockheed MartinNYSE: LMT: Provides aerospace, defense, and security technology and systems.
US citizen able to obtain DoD Secret clearance; hands-on support for systems, hardware, software and networking; familiarity with Linux, scripting, programming, and basic systems integration; strong problem-solving and critical thinking.
Linux, Jira, Python, Bash, Java, C++, SQL, Virtual Machines (VMs), Kubernetes, MATLAB
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2mo
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Software Engineer I
Washington, District of Columbia, United States
$99k-$140k/yr OnsiteFull Time
Vantage Systems
Vantage Systems: Providing engineering and technical services for space and aviation missions.
Entry-level software engineering role requiring a Bachelor's degree and SECRET clearance.
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1mo
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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.
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1mo
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Junior Software Engineer
Annapolis Junction, Maryland, United States
$70k-$190k/yr OnsiteFull Time
Belay Technologies
Belay Technologies: Provides specialized technology and engineering services to the DoD.
0+ YOEEntry-level software engineer with Python proficiency, production experience, and understanding of AI concepts and streaming data pipelines.
Python, Apache Kafka, Elasticsearch, PydanticAI, Langgraph, DeepAgents, APIs, Software development tooling
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3mo
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Software Engineer, Level 0 (FORECASTED)
Fort Meade, Maryland, United States
OnsiteFull Time
Independent Software
Independent Software: Provides software and systems engineering for national security missions.
0+ YOEEntry-level software engineer with basic programming knowledge, SDLC understanding, and strong analytical skills.
Java, Python, C++
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3mo
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Software Engineering II - CTJ - Poly
Redmond or Reston or Annapolis Junction or Atlanta
$102k-$202k/yr OnsiteFull Time
Microsoft
MicrosoftNASDAQ: MSFT: Develops software, services, devices, and cloud computing solutions.
2+ YOEBachelor's degree in Computer Science (or related), 2+ years engineering experience coding in C/C++/C#/Java/JavaScript/Python, expertise in distributed systems and cloud services, ability to obtain/hold U.S. Top Secret/SCI clearance.
C, C++, C#, Java, JavaScript, Python, Microsoft 365
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3mo
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Traffic Engineering Specialist
Owings Mills or United States
$72k-$82k/yr OnsiteFull Time
STV
STV: Provides engineering and architectural design for public infrastructure.
0+ YOEBachelor’s degree in Civil Engineering; 0-4 years traffic/transportation engineering experience; exposure to traffic analysis software; knowledge of MicroStation/AutoCAD; MS Office; strong communication skills.
Synchro, HCS, MicroStation, AutoCAD, Microsoft Office
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3mo
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Research Engineering Interns
State College or Reston
OnsitePart Time
Penn State University
Penn State University: Provides higher education and conducts extensive academic research programs.
0+ YOECompletion of sophomore year in Electrical Engineering, Computer Science, or Computer Engineering; strong communication; interest in software, hardware, signal processing, or RF; moderate programming skills.
Python, MATLAB, C, C++, LabView
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2mo
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Software Engineer I
Silver Spring, Maryland, United States
$83k-$108k/yr OnsiteFull Time
Technology Service Corporation
Technology Service Corporation: Develops advanced sensor systems and engineering solutions for defense.
0+ YOEEntry-level software engineer with Bachelor's or Master’s in CS/EE or similar; proficient in C/C++ or Java; interest in Navy AEGIS and defense tech; ability to obtain DoD clearance; US citizenship.
C/C++, Java, Qt, Microsoft Visual Studio, Windows, Linux
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3w
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Software Engineer
Beavercreek or Arlington
$69k-$158k/yr OnsiteFull Time
Booz Allen Hamilton
Booz Allen HamiltonNYSE: BAH: Provides technology and management consulting services to diverse organizations.
2+ YOE2+ years software development experience; ability to design, develop, and implement full-stack solutions; Secret clearance required; Bachelor's degree or 5+ years software engineering experience in lieu; familiarity with back-end and front-end languages.
Java, Python, C#, C, C++, .NET, JavaScript, React, NodeJS, PHP, Drupal
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4w
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Software Engineer II, Ad Engineering
Washington, District of Columbia, United States
$99k-$165k/yr OnsiteFull Time
The Washington Post
The Washington Post: Provides daily newspaper publishing and digital news reporting services.
2+ YOE2+ years building performant customer-facing applications; strong JavaScript and typed-system experience; AWS (ECS, EC2, RDS, S3, Lambda); Docker, Jenkins/AWS Code Pipeline; experience with LLMs/ChatGPT APIs and ad tech tooling desirable.
JavaScript, LLM, ChatGPT, AWS, ECS, EC2, RDS, S3, Lambda, Docker, Jenkins, AWS Code Pipeline, CI/CD, Prebid, Prebid Server, Google Ad Manager
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1d
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Systems Engineering Intern
Chantilly, Virginia, United States
$23-$40/hr OnsiteFull Time
Parsons
ParsonsNYSE: PSN: Provides engineering and technology services for infrastructure and defense.
Currently enrolled in an engineering degree, strong academics, US citizenship required, experience with Python/Matlab/C/C++, FPGA (VHDL/Verilog) preferred, coursework or work in software development.
Python, Matlab, C/C++, VHDL, Verilog
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4d
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Software Engineer
Arlington, Virginia, United States
$120k-$180k/yr OnsiteFull Time
Two Six Technologies
Two Six Technologies: Develops cybersecurity and data systems for national security missions.
2+ YOEBachelor's degree and 2+ years software engineering experience; proficiency with Python and C++; experience with Git and automated testing/CI/CD; active Top Secret clearance or ability to obtain TS/SCI.
Python, C++, Git, CI/CD, Docker, AWS
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1mo
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Cleared Software Engineer
Chantilly or Charlottesville
$81k-$142k/yr OnsiteFull Time
General Atomics
General Atomics: Designs and manufactures unmanned aircraft and nuclear technology systems.
2+ YOERequires active U.S. citizenship and Top Secret/SCI with CI poly; typically a bachelor's in CS/IS or related (may substitute experience); ~2+ years software development experience; strong math, networking, protocols; Java, Linux, AWS, Docker, Kubernetes experience; familiarity with software engineering practices.
Java, Linux, AWS, Docker, Kubernetes
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1w
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Junior Software Engineer Level 0 - Polygraph Required Annapolis Junction
Annapolis Junction, Maryland, United States
HybridFull Time
Anthem Engineering
Anthem Engineering: Developing software and system solutions for government intelligence missions.
Entry-level software engineer with experience in one or more languages (Java, JavaScript, TypeScript, Python), familiarity with Git, software development principles, and strong communication and problem-solving skills.
Java, JavaScript, TypeScript, Python, Git
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