34 prototyping engineer jobs at 23 companies in Winchester, VA
1mo
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Principal Solutions Developer , Prototyping and Customer Engineering (PACE)
Boston or Austin or Arlington or Seattle or New York or Herndon or Chicago or San Francisco or Dallas
$183k-$284k/yr OnsiteFull Time
15+ YOE15+ years technical experience, bachelor's in CS/engineering/math (or equivalent), expertise in cloud architecture and CXO engagement, experience developing end-to-end solutions, programming with Python/JavaScript/Go/.Net/Java, EMR of distributed systems.
Python, JavaScript, Go, .Net, Java, AWS
2w
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Sr Research Engineer
Reston, Virginia, United States
$164k-$222k/yr HybridFull Time
8+ YOEBachelors and Masters in CS/Engineering or related, 8+ years research engineering experience, systems and network security expertise, prototype development, publications, and strong development skills.
C, C++, Java, Python, SQL, NoSQL
4w
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Principal Innovation Engineer
Reston, Virginia, United States
$177k-$332k/yr OnsiteFull Time
10+ YOE10+ years in systems/software/platform engineering with experience prototyping emerging technologies, cloud/edge deployments, biometrics/peripherals, networking, resilience, and presenting technical recommendations.
AWS, Terraform, Java, MongoDB, Elasticsearch/OpenSearch, RabbitMQ, Kafka, Grafana, ELK, HashiCorp Consul, Nomad, Vault
1w
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Project Engineer
Leesburg or Allendale
$90k-$110k/yr HybridFull Time
2+ YOEBS in Mechanical/Biomedical Engineering required (MS preferred),2+ years relevant experience,knowledge of design controls,GD&T,materials,manufacturing,prototyping,and basic project management;Creo or SolidWorks and CAE experience.
CAE, Creo, SolidWorks
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Junior Electrical Engineer
Dulles, Virginia, United States
$61k-$122k/yr OnsiteFull Time
0+ YOEBS in electrical/computer engineering, ability to obtain TS/SCI, 0-3 years relevant experience, understanding of analog/digital circuits, schematic reading, prototyping, lab test equipment familiarity.
Altium Designer, OrCAD, Eagle, Python, MATLAB, oscilloscope, multimeter, signal generator, CAD
1mo
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Senior Mechanical Engineer
Sterling, Virginia, United States
HybridFull Time
Bachelor's degree in mechanical engineering (or related), proven mechanical design and system integration experience, CAD proficiency, prototyping and fabrication skills, thermal/structural analysis experience, knowledge of embedded systems and MIL STDs, strong communication.
SolidWorks, AutoCAD, Fusion 360, ESP32, Arduino, Raspberry Pi, FEA, 3D printers, drills, bandsaws
1d
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Principal Design Engineer
Chantilly or Herndon
$220k-$292k/yr OnsiteFull Time
20+ YOERequires 20+ years of mechanical and mechanism design, 10+ years designing spacecraft systems, 3-D CAD, prototyping, testing, leadership, and an engineering BS, MS, PhD, or equivalent experience. U.S. citizenship and Top Secret eligibility required.
3-D CAD, Oscilloscopes, power supplies, electronic loads, multimeters
5d
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Cloud Engineer
Chantilly, Virginia, United States
OnsiteFull Time
Develop prototypes, architecture guidance, application design recommendations, technology evaluations, cost-benefit analyses, and integration assessments; active Top Secret clearance required.
4w
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Electrical Engineer (RF / Embedded Systems)
Herndon, Virginia, United States
$130k-$140k/yr HybridFull Time
Mid-level electrical engineer with strong RF and embedded systems experience, PCB and power electronics skills, firmware and I2C protocol knowledge, track record moving prototypes to manufacturable products, fluent with modern AI tooling, U.S. person and willing to be onsite 4 days/week with occasional travel.
I2C, Claude, Gemini
1mo
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Propulsion Design Engineer
Chantilly, Virginia, United States
OnsiteFull Time
5+ YOEBS/MS in aerospace/mechanical/applied physics,5+ years electric propulsion experience,hands-on prototyping,CAD and simulation skills,good communication and independent/team work ability.
FEMM, Solidworks, Thermal Desktop, Autodesk CFD
1w
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AI Systems Engineer
Chantilly, Virginia, United States
$153k-$191k/yr OnsiteFull Time
Active TS/SCI with Polygraph; Bachelor's+5yrs or Master's+3yrs (PhD acceptable); strong AI/ML and NLP skills; prototyping with Python/R and LLM frameworks; experience with enterprise datasets and government environments.
Python, R, llama.cpp, LangChain, Hugging Face, AWS C2S
2w
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Principal Digital Electrical Engineer
Germantown, Maryland, United States
$156k-$200k/yr HybridFull Time
8+ YOEU.S. citizen with BSEE/MSEE or equivalent, 8+ years electrical design experience, expertise in high-speed/high-density digital designs, PCB/prototyping, firmware loading, test plans, and team leadership.
OrCAD/Cadence, LTspice, Hyperlynx, Microsoft Office
1mo
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Communications and Signal Processing Research and Development Engineer
State College or Reston or Annapolis Junction
$168k-$319k/yr OnsiteFull Time
14+ YOERequires technical background in communications and signal processing, simulation/analysis experience (MATLAB or Python), ability to prototype with software defined radios, eligibility for Secret-level clearance, and strong written/oral communication.
MATLAB, Python, C++, Software Defined Radios (SDRs)
1w
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Biomedical Engineer I - Standardized Organoid Modeling Center
Frederick, Maryland, United States
$78k-$111k/yr OnsiteFull Time
2+ YOEBachelor's degree or 4 years' relevant experience, plus 2 years progressive lab research; knowledge of biomedical engineering, image processing, prototyping/CAD, automated workflows, QC, and Microsoft Office; ability to obtain security clearance.
Microsoft Office, computer-aided design
2w
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Senior Python Developer
Chantilly, Virginia, United States
$121k-$189k/yr OnsiteFull Time
8+ YOEActive Top Secret clearance (TS) with SCI eligibility, US citizenship, 8+ years relevant experience (or equivalent degree/experience), strong Python development and rapid prototyping skills, experience with digital forensics desirable.
Python, Django, React, JavaScript, Docker, Bash, PowerShell, PostgreSQL, SANS SIFT Workstation
2w
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Senior Python Developer
Chantilly, Virginia, United States
$121k-$189k/yr OnsiteFull Time
Active TS/SCI clearance with CI polygraph ability, US citizenship, solid Python development, full-stack experience (Django/React), ability to rapidly prototype, and degree with extensive experience per posted equivalencies.
Python, Django, React, JavaScript, Docker, Bash, PowerShell, PostgreSQL, SANS SIFT Workstation
1mo
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Junior Software Engineer (Modeling & Simulation) - TS/SCI
Chantilly, Virginia, United States
OnsiteFull Time
Active TS/SCI clearance with polygraph required; proficiency in an OOP language (Python, Java, or C++), Git, and databases; full‑stack development and rapid prototyping experience; strong problem‑solving and collaboration skills.
Python, Java, C++, Git, Docker, Kubernetes, NoSQL
4w
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Senior Cyber Capability Developer
Chantilly, Virginia, United States
$140k-$175k/yr OnsiteFull Time
8+ YOEActive TS/SCI (with SCI eligibility) and CI polygraph ability, U.S. citizenship, degree+8yrs (or equivalent), full-stack Python/Django and React/JavaScript experience, Docker, PostgreSQL, Bash/PowerShell, rapid prototyping under operational timelines.
Python, Django, React, JavaScript, Docker, Bash, PowerShell, PostgreSQL, SANS SIFT Workstation
1mo
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Application Developer SME (TS/SCI with Poly Required)
Dulles, Virginia, United States
$164k-$275k/yr OnsiteFull Time
10+ YOEUS citizen with active TS/SCI + polygraph required; experienced UI/UX developer for accessible front-end design, creating prototypes, wireframes, and usability standards; 10+ years experience.
2mo
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xLab Manufacturing Operations Director
El Segundo or Chantilly
$168k-$252k/yr OnsiteFull Time
Bachelor's in STEM or equivalent; substantial managerial experience managing engineering/prototype labs; ability to obtain Secret security clearance; domestic travel up to 10%; experience with lab operations, procurement, inventory, and safety.
Jira, Confluence, PADS, PADS Xpedition, OrCAD, Altium
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