26 prototype engineer jobs at 18 companies in Winchester, VA
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Principal Innovation Engineer
Reston, Virginia, United States
$177k-$332k/yrOnsiteFull Time
ParsonsNYSE: PSN: Provides engineering and technology services for infrastructure and defense.
10+ YOE10+ years in systems/software/platform engineering with experience prototyping emerging technologies, cloud/edge deployments, biometrics/peripherals, networking, resilience, and presenting technical recommendations.
CACINYSE: CACI: Provides information technology and professional services to government clients.
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.
AxonNASDAQ: AXON: Develops weapons and software for law enforcement and safety.
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.
General Dynamics Mission SystemsNYSE: GD: Designs and manufactures defense and mission-critical technology solutions.
5+ YOEBachelor's in Mechanical Engineering (plus 5 years) or Master's (plus 3 years); Department of Defense Secret clearance at hire; U.S. citizenship; experience in structural analysis, machine design, prototyping, and familiarity with standards and CAD/analysis tools.
CACI InternationalNYSE: CACI: Provides information technology and engineering services for government agencies.
5+ YOEAbility to obtain TS/SCI, BS in EE/CE/CS (ABET), 5+ years RF engineering experience, strong RF theory and system design skills, prototyping and test experience, strong communication and attention to detail.
Multidisciplinary Systems Engineer (Mechanical/Software)
Frederick, Maryland, United States
$75k-$101k/yrHybridFull Time
WGS Systems: Develops intelligence and surveillance systems for military and law enforcement.
2+ YOEBachelor's in Mechanical Engineering, Mechatronics, Robotics, Aerospace Engineering, or related field; 2-5 years product development experience in defense/aerospace/electronics; US Citizen with ability to obtain USG security clearance; strong CAD/FEA; Python; prototyping; hardware/software integration.
PBA Group: Designs and manufactures industrial robotics and precision motion systems.
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.
Lynk Global: Enables direct satellite-to-phone connectivity for standard mobile devices.
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.
Thales Defense & Security, Inc.Euronext Paris: HO: Develops and manufactures defense, security, and communication technology systems.
8+ YOEU.S. citizenship required; BSEE/MSEE or equivalent; 8+ years electrical design experience; experience with high-speed, high-density digital designs, PCB oversight, firmware loading, lab prototyping, and DoD standards.
OrCAD/Cadence, LTspice, Hyperlynx, Microsoft Office
Expedition Technology: Delivering advanced machine learning and signal processing for defense.
4+ YOE4+ years in Python/Java; US citizenship with Top Secret clearance; BA/BS in CS/Physics/Engineering; experience with signal processing and ML; strong software design and prototyping skills.
Communications and Signal Processing Research and Development Engineer
State College or Reston or Annapolis Junction
$168k-$319k/yrOnsiteFull Time
Penn State University: Provides higher education and conducts extensive academic research programs.
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)
TENICA: Provides national security and defense services to government agencies.
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.
4+ YOEBachelor's degree or equivalent, 4+ years cloud-native architecture experience in customer-facing/support roles; experience with IaC, devops, containers, networking, SDLC, observability, demos/prototypes, and presenting to technical and executive stakeholders.
Google Cloud, Infrastructure-as-Code, SDLC, container runtimes, artifact management, code repositories, observability, API management, microservice frameworks, PaaS, devops
Cyber Capability Developer III - Digital Forensics
Chantilly, Virginia, United States
$121k-$189k/yrOnsiteFull Time
Noblis: Nonprofit science, technology, and strategy firm supporting government missions.
8+ YOEActive TS/SCI clearance (CI polygraph ability), US citizenship, substantial Python development experience, ability to rapidly prototype tools, and relevant degree or extensive experience.
Application Developer SME (TS/SCI with Poly Required)
Dulles, Virginia, United States
$164k-$275k/yrOnsiteFull Time
GCI: Engineering and analytics solutions for national security missions.
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.
The Aerospace Corporation: Provides technical expertise and research for national space programs.
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.
Lockheed MartinNYSE: LMT: Provides aerospace, defense, and security technology and systems.
Ability to obtain DoD Secret clearance (US citizenship required); attention to detail; document review and test execution experience; coursework or hands-on experience in hardware, electrical systems, 3D modeling, or prototyping preferred.