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Senior Mechanical Engineer United States Jobs (On-site work)

55 Job Offers

Senior Mechanical Engineer-Chemicals
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Senior Mechanical Engineer needed for a major EPC client in Elkview, West Virginia. This 6-month contract role requires experience in nuclear, refining, or chemical facilities, with strong skills in multidisciplinary project oversight and mechanical design. Lead discipline teams from concept thro...
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United States , Elkview
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Airswift Sweden
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Senior Mechanical Engineer
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Senior Mechanical Engineer sought in San Jose to design and launch innovative hardware products. Requires 7+ years’ experience, Solidworks expertise, and skills in mechatronics, GD&T, and DFM. Collaborate with UX/ID teams, manage multiple projects, and create rapid prototypes. Ideal for candidate...
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United States , San Jose
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Speck Design
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Senior Mechanical Engineer
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Senior Mechanical Engineer needed for a 6-month contract with a major EPC client in Elkview, West Virginia. Leverage 8+ years of nuclear sector experience and a PE license to lead mechanical design across the full project lifecycle. Collaborate on complex industrial projects, from concept through...
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United States , Elkview
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Airswift Sweden
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Senior Mechanical Engineer
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Senior Mechanical Engineer sought by Formlabs in Boston to architect next-gen 3D printers. Leverage 5+ years of electro-mechanical systems expertise to prototype precision tools, lead cross-disciplinary teams, and solve complex challenges. Ideal for hands-on innovators skilled in thermal/optical ...
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United States , Boston
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117000.00 - 158000.00 USD / Year
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Formlabs GmbH
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Senior Mechanical Engineer
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Senior Mechanical Engineer sought to architect and prototype next-gen 3D printers in Somerville, MA. Lead hardware system design, from thermal and optical systems to material selection, ensuring performance and reliability. Requires 5+ years of experience, hands-on prototyping skills, and full pr...
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United States , Somerville
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117000.00 - 158000.00 USD / Year
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Formlabs GmbH
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Mechanical Engineer (Senior or Principal)
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Senior or Principal Mechanical Engineer sought to lead high-profile structural designs from concept to installation in Plymouth, US. Requires B.S. in Mechanical/Aerospace Engineering, 5-7+ years’ experience, SolidWorks proficiency, and ITAR compliance. Drive innovation, manage project budgets, an...
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United States , Plymouth
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Uni-Systems Engineering
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Senior Mechanical Design Engineer
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Senior Mechanical Design Engineer role in Lewis Center, OH, focused on developing advanced mechanical designs for automated assembly systems. Requires a bachelor’s in mechanical engineering, 5+ years of experience, and SolidWorks 3D CAD proficiency. Key responsibilities include mentoring engineer...
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United States , Lewis Center
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ATS Automation Tooling Systems Inc.
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Senior Mechanical Engineer
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Senior Mechanical Engineer needed in Lewis Center, USA to lead nuclear automation design at ATS Industrial Automation. Requires 10+ years in custom machinery design and 5+ years in nuclear tooling, with NQA-1/ASME knowledge preferred. Drive innovative solutions, lead mechanical design, and establ...
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United States , Lewis Center
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ATS Automation Tooling Systems Inc.
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Cleared senior principal lead r&d mechanical systems engineer
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Lead the mechanical systems design for critical national security flight test programs. This senior role requires an active DOE Q or DoD TS clearance and a background in R&D mechanical engineering. You will guide teams through design, assembly, and testing in a collaborative environment. The posi...
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United States , Livermore
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139900.00 - 280600.00 USD / Year
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Sandia National Laboratories
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Senior Mechanical Engineer
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Join our Automation Team as a Senior Mechanical Engineer in Shakopee, MN. Design and build custom automated equipment for global fiber optics manufacturing, using expert SolidWorks skills. This role requires 8+ years of experience in automation design, GD&T, and PLC systems, with 15% global trave...
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United States , Shakopee, Minnesota
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103000.00 - 130000.00 USD / Year
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CommScope
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Senior Mechanical Engineer – Automation & Process Systems
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Join JR Automation as a Senior Mechanical Engineer in Nashville. You will design and specify custom automation systems using CAD and advanced engineering principles. This role offers competitive benefits, unique projects, and a collaborative environment for career growth.
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United States , Nashville
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JR Automation
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Senior / Principal R&D Mechanical Engineer, Energetic Environments
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Lead large-scale R&D projects and field tests in energetic environments for national security. This senior mechanical engineering role requires a relevant degree, 5+ years' experience, and a DOE Q clearance. Join Sandia in Albuquerque to manage multidisciplinary teams with impactful work and a 9/...
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United States , Albuquerque
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117500.00 - 235700.00 USD / Year
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Sandia National Laboratories
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Senior Mechanical Engineer
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Lead complex automation projects as a Senior Mechanical Engineer in Rolling Meadows/Chicago. Design advanced cam, servo, and pneumatic systems using SolidWorks/AutoCAD for large-scale, multi-module equipment. Mentor junior engineers and ensure robust, cost-effective designs. Enjoy comprehensive b...
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United States , Rolling Meadows; Chicago
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108900.00 - 131100.00 USD / Year
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ATS Automation Tooling Systems Inc.
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Senior Mechanical Engineer
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Join Piper Companies as a Senior Mechanical Engineer in Midland, Texas. Lead the mechanical design and analysis of satellite Ground Support Equipment (MGSE) and payload subsystems. This role requires a BS in Mechanical Engineering and 3-10 years of hands-on spacecraft mechanical design experience...
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United States , Midland
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Piper Companies
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Senior Mechanical Engineer
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Join JR Automation as a Senior Mechanical Engineer in Nashville. Utilize your 5+ years of experience and CAD proficiency (SolidWorks, Creo) to lead teams on custom automation projects. Enjoy competitive benefits from day one and grow your career in a collaborative, engineering-driven environment.
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United States , Nashville
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JR Automation
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Senior Mechanical Design Engineer, Motor
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Join Archer's Electric Propulsion Team as a Senior Mechanical Design Engineer in San Jose. You will lead the mechanical design of high-performance electric motors, turning electromagnetic theory into robust physical reality. This role requires 7+ years of electric machine design expertise, profic...
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United States , San Jose
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144000.00 - 190000.00 USD / Year
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Archer Aviation
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Senior Mechanical Engineer - Value Engineering
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Lead value engineering initiatives to reduce production costs and improve margins for sustaining products. This senior mechanical engineering role in Somerville requires 5+ years of VA/VE experience, from concept through validation and implementation. You will own the technical validation lifecyc...
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United States , Somerville
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112000.00 - 155000.00 USD / Year
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Formlabs GmbH
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Senior Mechanical Engineer - Building Systems
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United States , Austin
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120000.00 - 170000.00 USD / Year
The American Housing Corporation
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Senior Commissioning Engineer, Mechanical
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United States , Denver, CO; Amarillo, TX; Abilene, TX; Cheyenne, WY
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155000.00 - 175000.00 USD / Year
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Crusoe
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Senior Mechanical Product Design Engineer
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United States , San Francisco
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140000.00 - 200000.00 USD / Year
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Eight Sleep
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About the Senior Mechanical Engineer role

Discover and apply for Senior Mechanical Engineer jobs, a pivotal career path for experienced professionals who drive innovation and ensure the integrity of complex mechanical systems. A Senior Mechanical Engineer is a seasoned expert responsible for the entire lifecycle of mechanical components and systems, from conceptual design and analysis to implementation, quality assurance, and project leadership. These roles are fundamental across diverse industries, including energy, manufacturing, aerospace, automotive, and industrial processing, where they translate theoretical principles into robust, real-world solutions.

Professionals in these senior positions typically undertake a wide array of critical responsibilities. They lead the design and development of sophisticated mechanical systems, performing detailed calculations, simulations, and analyses to ensure functionality, safety, and efficiency. A core aspect of the role involves creating and reviewing technical documentation, specifications, and engineering drawings. They often oversee project timelines, manage budgets, and coordinate multidisciplinary teams, acting as the technical authority. Senior Mechanical Engineers are also heavily involved in problem-solving, troubleshooting design or operational issues, and implementing continuous improvement processes. In many positions, they ensure strict compliance with industry standards, codes, and regulatory requirements, sometimes specializing in Quality Assurance/Quality Control (QA/QC) to oversee inspections, testing protocols, and material verification.

The typical requirements for Senior Mechanical Engineer jobs reflect the high level of expertise and leadership demanded. Candidates almost universally need a Bachelor’s or advanced degree in Mechanical Engineering or a closely related field. A proven track record, often 5-10 years of progressive experience, is essential, demonstrating a deep understanding of mechanical engineering principles, materials science, thermodynamics, and fluid mechanics. Proficiency in industry-standard software like CAD (e.g., AutoCAD, SolidWorks), CAE, and project management tools is expected. Strong analytical skills, meticulous attention to detail, and the ability to manage multiple complex projects are crucial. Excellent communication and interpersonal skills are paramount for liaising with stakeholders, mentoring junior engineers, and presenting technical information clearly. A commitment to professional development, often including relevant certifications, and a focus on safety and sustainability are hallmarks of successful candidates.

Exploring Senior Mechanical Engineer jobs opens doors to roles where technical mastery meets strategic leadership. These professionals are the cornerstone of engineering projects, ensuring that mechanical systems are not only designed to specification but are also reliable, efficient, and innovative. Whether focusing on design, project management, proposals, or quality control, senior engineers play an indispensable role in advancing technology and infrastructure, making this a highly sought-after and rewarding career for experienced engineering talent.