91 prototype engineer jobs at 59 companies in Rosedale, MD
5d
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AI Prototype Deployment Engineer
McLean or Washington or Virginia
$85k-$141k/yr HybridFull Time
Active Secret clearance and experience with Databricks, data pipelines, notebooks, cloud-native deployment, AI/ML operations, automation, DevOps, version control, and secure data handling.
Databricks, Advana, Python, PySpark
1mo
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Prototype Machinist (Mech Tech H 3)
Alexandria, Virginia, United States
$30-$45/hr OnsiteFull Time
5+ YOE5+ years related machining experience; proficiency with CNC programming/set-up, conventional lathes and mills, measurement tools, and reading engineering drawings; HS/GED or certification preferred; associate degree preferred.
CNC, knee mills, lathes, CNC routers, waterjets, lasers, Mastercam, Electronic measurement devices
4d
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Chief Engineer
Washington, District of Columbia, United States
$116k-$195k/yr HybridFull Time
12+ YOEBachelor’s degree in engineering or science, 12+ years in test and evaluation, 3+ years in prototype development, DHS acquisition and systems engineering experience, and technical reporting expertise.
1mo
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Principal Engineer
Beltsville, Maryland, United States
$140k-$190k/yr OnsiteFull Time
10+ YOE10+ years engineering experience, B.S. (required) in mechanical/electrical/mechatronics, strong hands-on hardware and automation experience, 3D CAD skills, prototype line and equipment build experience, ability to lead root-cause investigations and mentor engineers.
3D CAD
3mo
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Senior Infrastructure Engineer
College Park, Maryland, United States
$135k-$216k/yr OnsiteFull Time
12+ YOEPoly cleared senior engineer with 12+ years in systems engineering or application prototyping; strong customer-facing and leadership capabilities; relevant certifications.
INCOSE, CISSP, CCNA, RHCE, MCSE, VCP, ITIL, PMP, Agile
2mo
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Lead Design Engineer
Austin or Cody or Washington
OnsiteFull Time
5+ YOEB.S. in engineering, 5+ years engineering experience, hands-on CAD and prototype assembly experience, gearbox design capability, strong written and oral communication, ability to perform shop work and occasional travel.
CAD
3w
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CBI Electrical Engineer
Baltimore, Maryland, United States
$101k-$152k/yr OnsiteFull Time
5+ YOEBachelor's in electrical engineering and 5+ years experience; schematic and wiring design, prototype validation, software specification creation, PLC programming, compliance (UL, Energy Star) experience.
PLC
2mo
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Senior Mechanical Engineer
Winter Park or Huntsville or Auburn or Opelika or Orlando or Niceville or Fort Walton Beach or Atlanta or Warner Robins or Dayton or Boston or Salt Lake City or Aberdeen
$110k-$160k/yr OnsiteFull Time
7+ YOEBachelors in Mechanical Engineering, 7+ years mechanical design and prototype experience, SolidWorks and CAD proficiency, hands-on hardware integration and troubleshooting, ability to obtain SECRET security clearance.
SolidWorks, CAD
3mo
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Senior Infrastructure Engineer
College Park, Maryland, United States
$135k-$216k/yr OnsiteFull Time
12+ YOESenior-level infrastructure engineer with 12+ years in system engineering/prototype development; active TS/SCI w/ Polygraph; multiple technical certs; on-site near College Park, MD.
2w
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Principal Mechanical Engineer
Laurel, Maryland, United States
$168k-$176k/yr OnsiteFull Time
10+ YOEBSME required, 10+ years mechanical engineering experience, SolidWorks and FEA proficiency, ASME Y14.100 drawing experience, DFMEA and prototype testing skills, strong communication and manufacturing knowledge.
SolidWorks, FEA, ASME Y14.100, DFMEA
2mo
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Research Engineer, Mechanical
Newark, Delaware, United States
OnsiteFull Time
3+ YOEMaster's or Bachelor's in Mechanical, Electrical, or Software Engineering; 3+ years in rapid prototyping, system integration, and tech transfer; CAD, 3D printing, C++, Python, machine tool experience; strong problem-solving and communication skills.
Computer Aided Design (CAD), 3D Printing, machine tools, C++, Python
1w
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BAC Design Engineer, Global
Jessup, Maryland, United States
$64k-$109k/yr OnsiteFull Time
3+ YOEBachelor's degree in engineering, 3–5 years of experience, CAD experience, 3D modeling, Excel, sheet metal design, prototype testing, DFMA, HVAC/refrigeration knowledge, and electrical schematic proficiency.
Autodesk Inventor, Microsoft Excel, Agile, Scrum, Autodesk Vault, CAD, DFMEA, DFMA
1mo
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Principal AI/ML Engineer - Sales Engineer- Remote
Eden Prairie or Minneapolis or Washington or United States
$165k-$282k/yr RemoteFull Time
Hands-on AI/ML/GenAI engineering with strategic solutioning; experience with Python, LLMs, RAG, AI agents; customer-facing workshop and executive presentation experience; healthcare domain knowledge; rapid prototyping skills.
Python, LLMs, RAG, AI agents, Cursor, GitHub Copilot, Claude Code
1mo
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Lead R&D Manufacturing Engineer
Baltimore, Maryland, United States
$92k-$138k/yr OnsiteFull Time
Bachelor’s degree in engineering or related field, CAD familiarity, hands-on manufacturing or prototype development interest, and effective communication skills. Manufacturing equipment, tooling, machining, or composites experience preferred.
NX, CATIA
1mo
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Mechanical Design Engineer
Washington, District of Columbia, United States
$112k-$190k/yr OnsiteFull Time
5+ YOEBachelors in engineering or equivalent, 5+ years mechanical design/product development experience, SolidWorks and prototyping/testing experience, active DoD Secret (ability to obtain TS/SCI), able to lift 50 lbs.
SolidWorks, CNC
2mo
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Forward Deployed Engineer (Federal)
Washington or New York City
$175k-$235k/yr FieldFull Time
2+ YOE2+ years engineering or FDE experience; U.S. citizenship and eligibility for Top Secret clearance; ability to scope ambiguous problems, embed with customers, prototype integrations, and support live operations.
1w
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Electrical Engineer (MIL-STD Electrical Connectors)
Aberdeen Proving Ground, Maryland, United States
OnsiteFull Time
Bachelor's degree in electrical engineering or related field, connector design and fabrication experience, MIL-STD/MIL-DTL familiarity, prototyping or LRIP experience, and eligibility for Secret clearance.
MIL-STD, MIL-DTL, C3
3mo
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Mechanical Engineer II
Sterling, Virginia, United States
HybridFull Time
Bachelor's or Master's in Mechanical Engineering; mechanical design and system integration experience; CAD proficiency; prototyping; knowledge of embedded systems; thermal/structural analysis; MIL-STD familiarity; strong communication; ability to work in a fast-paced environment.
SolidWorks, AutoCAD, Fusion 360, 3D Printers, ESP32, Arduino, Raspberry Pi
1w
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Systems Engineer
Upper Marlboro, Maryland, United States
OnsiteFull Time
Bachelor's degree or equivalent military/field experience; U.S. citizenship and ability to obtain Public Trust; computer, networking, prototyping, electronics testing, technical documentation, and communication skills.
Microsoft Windows, Linux, SolidWorks, Arduino, STM32, ESP8266, ESP32, Photoshop, Blender, GIMP, DMMs, CAD, 3D printers, laser cutters
1w
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Sr Manufacturing Process Engineer (UAV/USV)
Rockville, Maryland, United States
$105k-$125k/yr OnsiteFull Time
7+ YOEBachelor’s degree in engineering; 7–12+ years in aerospace or complex electromechanical manufacturing; experience scaling prototypes to production, process design, RCCA, and regulated or defense environments.
ERP, PLM
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