52 mechanical process engineer jobs at 37 companies in Washington, DC
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Water/Wastewater Process Mechanical Engineer
Fairfax, Virginia, United States
$90k-$185k/yr OnsiteFull Time
5+ YOEBachelor's in Mechanical/Civil/Chemical Engineering,5+ years designing process piping and mechanical systems for water/wastewater facilities,AutoCAD and Microsoft Office proficiency,PE in VA preferred.
AutoCAD, Microsoft Office, Revit
1mo
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Process Engineer
Cockeysville, Maryland, United States
$80k-$85k/yr OnsiteFull Time
2+ YOEBachelor's in mechanical/industrial/aerospace engineering, 2+ years manufacturing/process experience, CAD/AutoCAD and process simulation knowledge, familiarity with SOPs and safety regulations; US citizen or green card required.
CAD, AutoCAD
3d
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Mechanical Engineer
Fredericksburg, Virginia, United States
$80k-$100k/yr OnsiteFull Time
4+ YOERequires a BS in Mechanical Engineering, 4–6 years of similar technical experience, SolidWorks CAD, GD&T, manufacturing process knowledge, FEA, and proficiency with Microsoft Office, Excel, and SAP.
SolidWorks, Microsoft Excel, SAP, Microsoft Office, finite element analysis (FEA)
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Mid-Level Process Mechanical Designer
Pittsburgh or Philadelphia or Columbus or Independence or Troy or Cincinnati or Saint Paul or Milwaukee or Andover or Syracuse or Virginia Beach or Alexandria or Columbia or Richmond
$64k-$105k/yr HybridFull Time
4+ YOE4+ years in process mechanical design; proficient in Revit and AutoCAD; P&ID coordination; piping design; project design gates; mentoring.
Revit, AutoCAD, P&ID, Microstation?
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Staff Mechanical Engineer
Indian Head, Maryland, United States
$87k-$115k/yr OnsiteFull Time
0+ YOEBachelor's in mechanical engineering (or related) with 2–4 years (or Master's with 0–2 years); U.S. citizenship and ability to obtain an Interim Secret clearance; experience with energetic materials, process safety, project management, and strong communication skills.
2mo
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Thermal Mechanical Engineer
Baltimore, Maryland, United States
OnsiteFull Time
5+ YOEBSc or MSc in Mechanical Engineering (BSc minimum). 5+ years in high-temperature systems, reactor or process equipment design, thermal systems engineering. Experience with SolidWorks/Inventor and ANSYS/COMSOL (CFD/FEA); knowledge of high-temperature materials and ASME/piping design.
SolidWorks, Inventor, ANSYS, COMSOL, CFD, FEA
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Mechanical Engineer IV
Hunt Valley or Belleville or Milwaukee
$100k-$130k/yr OnsiteFull Time
10+ YOERequires a 4-year engineering degree, 10+ years of experience, construction process knowledge, building code expertise, AutoCAD or Revit knowledge, and strong communication skills. EIT or PE preferred.
AutoCAD, Revit
3d
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Boyd Thermal by Eaton - Mechanical Engineer
Fredericksburg, Virginia, United States
OnsiteFull Time
3+ YOEBachelor’s degree or higher in Mechanical Engineering and 3+ years of engineering experience in a technical role. SolidWorks, CAD/3D modeling, product testing, documentation, and manufacturing process experience preferred.
SolidWorks, Finite Element Analysis (FEA), Product Data Management (PDM), Computer Numerical Control (CNC)
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Senior Process Engineer - Equipment
Harmans or Baltimore or Washington
$94k-$128k/yr OnsiteFull Time
4+ YOEBachelor's degree or higher in engineering and 4+ years of GMP or biopharma maintenance/engineering experience. Requires mechanical, electrical, automation, sterile manufacturing, cGMP, troubleshooting, and documentation expertise.
Computerized Maintenance Management System (CMMS), Standard Operating Procedures (SOPs), Supervisory Control and Data Acquisition (SCADA)
3w
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Manufacturing Process Engineer
Baltimore, Maryland, United States
$64k-$93k/yr OnsiteFull Time
1+ YOEBachelor's degree in mechanical or relevant engineering discipline, 1–3 years of manufacturing and engineering technology experience, critical thinking, troubleshooting, communication, and U.S. Person status or authorization.
modeling software
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Senior Process Technology Engineer
Georgetown, Texas, United States
$150k-$190k/yr OnsiteFull Time
10+ YOEBachelor's or Master's in chemical/mechanical eng or chemistry; 10+ years process engineering; pilot-plant experience; capital projects leadership; process simulation proficiency; travel willingness.
Aspen Plus, HYSYS, UniSim, PFDs, P&IDs, HAZOP
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Sr. / Principal Welding Process Engineer
Stevensville, Maryland, United States
$116k-$156k/yr OnsiteFull Time
10+ YOEBachelor's in welding/materials/mechanical engineering,10+ years welding process development in compliance-driven manufacturing, welding metallurgy expertise, procedure and welder qualification experience, AS9100/NADCAP knowledge.
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Senior Mechanical Engineer – 3D Facility Characterization
Albuquerque or Chantilly
OnsiteFull Time
10+ YOEBachelor's in engineering required (advanced degree preferred), 10+ years engineering experience with 3D geometric modeling, CAD, LiDAR/point-cloud processing, Hydrocode/FEA/CFD prep, and an active TS/SCI clearance.
LiDAR, 3D CAD, SolidWorks, Creo, Autodesk, Hydrocode, Finite Element Analysis (FEA), Computational Fluid Dynamics (CFD), HPAC, VLSTRACK, CloudCompare, Cyclone, Structure-from-Motion (SfM), Synthetic Aperture Radar (SAR), Python, MATLAB, LS-DYNA, ANSYS Autodyn, CTH
2d
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Device Assembly Process Engineer
Gaithersburg, Maryland, United States
$79k-$119k/yr OnsiteFull Time
5+ YOERequires a Mechanical Engineering, Biomedical Engineering, related engineering, or pharmaceutical science degree and 5+ years' experience with a bachelor's or 2+ years' experience with a master's, plus medical device or combination product expertise.
QbD
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Mechanical & Structural Engineer Manager (Virtual)
Manassas, Virginia, United States
$128k-$199k/yr RemoteFull Time
Manages mechanical and structural engineering employees, oversees technical approaches and processes, leads improvements, and manages stakeholder relationships. U.S. Person status and ability to obtain U.S. Secret Clearance required.
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FAB Engineer (Wet Process)
Manassas, Virginia, United States
OnsiteFull Time
Bachelor's in engineering (Chemical, Electrical, Mechanical or related) preferred; experience with statistical analysis, FMEA/8D/SPC, failure analysis, process/equipment/material optimization, product quality escalation, and data collection/analysis.
FMEA, 8D, SPC, R2R, ECN, GCP, TPM, PDR
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2026 Intern Conversion - Materials and Process Engineer I
Seattle or Van Horn or Denver or Huntsville or Florida or Arlington or Los Angeles or Longmont or Reston or United States
$75k-$114k/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; minimum B.S. in mechanical, aerospace, or astronautical engineering; strong communication and teamwork skills; U.S. work authorization required.
Defense Biometric Identification System (DBIDS)
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Senior Commissioning / Construction Support Engineer (Wastewater Process Facilities)
Alexandria or Washington
$130k-$190k/yr FieldFull Time
8+ YOERequires 8–15+ years in wastewater, industrial, or process facilities; commissioning/startup experience; process, mechanical, electrical, controls, and SCADA knowledge; and active construction-site experience.
SCADA
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Resident Engineer
Washington or Baltimore
$80k-$100k/yr OnsiteFull Time
4+ YOEBA/BS in mechanical, electrical, or civil/structural engineering plus 4 years' related experience or equivalent; PE or ability to obtain within 1 year; OSHA 10; experience with wastewater construction and mechanical process equipment.
PMIS- e-Builder
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Manufacturing Engineer
Clarksburg, Maryland, United States
$115k-$140k/yr OnsiteFull Time
3+ YOEBachelor’s degree in mechanical, manufacturing, industrial, or related engineering; 3–6 years manufacturing engineering experience; CAD, process documentation, assembly, 8D problem-solving, and cross-functional production support experience.
Computer-Aided Design (CAD), Inventor, SolidWorks, Creo, 8D, Process Failure Mode and Effects Analysis (PFMEA), Six Sigma, Lean
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