Mid-Level Mechanical Engineer Jobs

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Senior Staff Mechanical Engineer - Harness Design (R3550) (San Diego)

Shield AI Inc

San Diego, California, USA

Full-time

Founded in 2015, Shield AI is a venture-backed defense technology company with the mission of protecting service members and civilians with intelligent systems. Its products include the V-BAT aircraft, Hivemind Enterprise, and the Hivemind Vision product lines. With offices in San Diego, Dallas, Washington, D.C., Boston, Abu Dhabi (UAE), Kyiv (Ukraine), and Melbourne (Australia), Shield AI's technology actively supports U.S. and allied operations worldwide. For more information, visit Follow Sh

Senior Mechanical Engineer - Buildings

Colliers Engineering

Rochester, New York, USA

Full-time

Overview Colliers Engineering & Design is seeking a Senior Mechanical Engineer to join our Buildings Engineering Services team in Rochester, NY. Our team of mechanical, electrical, and plumbing (MEP) engineers brings extensive experience across a diverse range of projects, including commercial, institutional, healthcare, retail, and manufacturing facilities. We serve a variety of clients, including private, government, municipal, industrial, and institutional sectors. We specialize in designin

Sr. Mechanical Engineer, Flight Termination System (Starship)

SpaceX

Hawthorne, California, USA

Full-time

SpaceX was founded under the belief that a future where humanity is out exploring the stars is fundamentally more exciting than one where we are not. Today SpaceX is actively developing the technologies to make this possible, with the ultimate goal of enabling human life on Mars. SR. MECHANICAL ENGINEER, FLIGHT TERMINATION SYSTEM (STARSHIP) As a member of the Flight Termination System team, you will have the exciting opportunity to be responsible for the design of the Starship Flight Terminati

Senior Mechanical Engineer

Leidos

Chantilly, Virginia, USA

Full-time

The Multi-Domain Solutions division at Leidos is seeking a Mechanical Engineer to be based on site with our Intel Community customer. This position will be responsible for designing, cost estimating, scheduling, engineering, coordination, contracting, installation oversite, inspection, and acceptance of mechanical systems/services, which include HVAC, HVAC controls, chillers, boiler, water distribution, ductwork, plumbing, and fire protection systems associated with Intel customer facilities and

Senior Mechanical Engineer 2 - Nuclear

Sargent & Lundy LLC.

Remote

Full-time

Description You will be involved in nuclear power plant systems design, including preparation or review of: Modification packages for operating nuclear power plantsFunctional mechanical drawings and/or drawings for nuclear power plant systemsEngineering analyses and evaluations to support modifications and operation of plant systemsTechnical specifications and procurement documents for plant equipmentVendor bid evaluations for plant equipmentStudies and options evaluations for modifications to

Senior Mechanical Engineer 1 - Nuclear

Sargent & Lundy LLC.

Surry, Virginia, USA

Full-time

Description This is a senior level mechanical engineering position that will provide you with a variety of interesting and challenging responsibilities. This will be an on site field support position. You will be involved in nuclear power plant systems design, including preparation or review of: Modification packages for operating nuclear power plantsFunctional mechanical drawings and/or drawings for nuclear power plant systemsEngineering analyses and evaluations to support modifications and o

Senior Mechanical Engineer 1 - Nuclear

Sargent & Lundy LLC.

New London, Connecticut, USA

Full-time

Description Your time will be spent at the nuclear site in Waterford, Connecticut. This is a senior level mechanical engineering position that will provide you with a variety of interesting and challenging responsibilities. This will be an on site field support position. You will be involved in nuclear power plant systems design, including preparation or review of: Modification packages for operating nuclear power plantsFunctional mechanical drawings and/or drawings for nuclear power plant sy

Senior Mechanical Engineer 1 - Nuclear

Sargent & Lundy LLC.

Harrisburg, Pennsylvania, USA

Full-time

Description This will be an onsite position supporting Crane Clean Energy Center/Three Mile Island Nuclear Generating Station (Harrisburg, PA). This is a senior level mechanical engineering position that will provide you with a variety of interesting and challenging responsibilities. We are looking for candidates with experience in the analysis, design, and licensing requirements of mechanical and nuclear systems and components for nuclear power plants. You will be involved in nuclear power

Senior Mechanical Engineer - (Retail, Workplace, Education, Transit)

Arcadis

Raleigh, North Carolina, USA

Full-time

Arcadis is the world's leading company delivering sustainable design, engineering, and consultancy solutions for natural and built assets. We are more than 36,000 people, in over 70 countries, dedicated to improving quality of life. Everyone has an important role to play. With the power of many curious minds, together we can solve the world's most complex challenges and deliver more impact together. Role description: Arcadis is seeking a Senior Mechanical Engineer to join our Design & Enginee

Senior Mechanical Engineer - Thermal Engineer

RTX Corporation

Tucson, Arizona, USA

Full-time

Date Posted: 2025-05-21 Country: United States of America Location: AZ201: RMS AP Bldg 801 1151 East Hermans Road Building 801, Tucson, AZ, 85756 USA Position Role Type: Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirements: The ability to obtain and maintain a U.S. government issued security clearance is required.Security Clearance: DoD Clearance: Secret At Raytheon, the foundation of everything we do is rooted in our values and a higher calling - to help our nation and allies

Senior Opto-Mechanical Engineer

Kforce Technology Staffing

Boulder, Colorado, USA

Contract, Third Party

RESPONSIBILITIES: Kforce has a client that is seeking a Senior Opto-Mechanical Engineer in Boulder, CO. Summary: As a Senior Opto-Mechanical Engineer, you'll lead the design, analysis, and testing of precision optical assemblies used in cutting-edge AR devices. This hands-on role involves developing custom tools and fixtures, producing compliant technical drawings, and collaborating with cross-functional teams to bring complex opto-mechanical concepts to life. You'll work onsite in Boulder to s

Senior Mechanical Engineer - HVAC Design

Olsson Associates Inc

Dallas, Texas, USA

Full-time

Company Description We are Olsson, a team-based, purpose-driven engineering and design firm. Our solutions improve communities, and our people make it possible. Our most meaningful asset is our people, and we are dedicated to providing an environment where they can continue to learn, grow, and thrive. Our entrepreneurial spirit is what has allowed us - and will continue to allow us - to grow. The result? Inspired people, amazing designs, and projects with purpose. Job Description Olsson's Fa

Senior Mechanical Engineer

HDR, Inc.

Chicago, Illinois, USA

Full-time

At HDR, our employee-owners are fully engaged in creating a welcoming environment where each of us is valued and respected, a place where everyone is empowered to bring their authentic selves and novel ideas to work every day. As we foster a culture of inclusion throughout our company and within our communities, we constantly ask ourselves: What is our impact on the world? Watch Our Story:' ' Each and every role throughout our organization makes a difference in our ability to change the world f

Mid-Level Mechanical Systems Design & Analysis Engineer

Boeing Company

Hazelwood, Missouri, USA

Full-time

Mid-Level Mechanical Systems Design & Analysis Engineer Company: The Boeing Company Boeing Global Services (BGS) is currently seeking a Mid-Level Structural Engineer (mechanical design engineers) to join the Mechanical Ground Support Equipment (GSE) engineering design team in Hazelwood, MO supporting Boeing Defense, Space & Security (BDS) Air Dominance/Phantom Works Programs. This team is responsible for a wide-range of uniquely designed airframe and subsystem GSE, including equipment handlin

Senior Mechanical Engineer, Satellites (Starlink)

SpaceX

Redmond, Washington, USA

Full-time

SpaceX was founded under the belief that a future where humanity is out exploring the stars is fundamentally more exciting than one where we are not. Today SpaceX is actively developing the technologies to make this possible, with the ultimate goal of enabling human life on Mars. SENIOR MECHANICAL ENGINEER, SATELLITE (STARLINK) Starlink is the world's largest satellite constellation, providing broadband-quality internet anywhere on earth. We're leveraging our SpaceX knowledge in building rocke

Mid-Level Mechanical Systems Design & Analysis Strength Engineer

Boeing Company

Hazelwood, Missouri, USA

Full-time

Mid-Level Mechanical Systems Design & Analysis Strength Engineer Company: The Boeing Company Boeing Global Services (BGS) has an exciting opportunity for a Strength Engineer (Level 3) to join the Mechanical Ground Support Equipment (GSE) engineering design team in Hazelwood, MO to support Boeing Defense, Space & Security (BDS) Air Dominance/Phantom Works, Air Proprietary 1 (AP1) Program. This team is responsible for a wide-range of uniquely designed airframe and subsystem GSE, including equip

Senior Mechanical Engineer 1 - Nuclear

Sargent & Lundy LLC.

Palm Beach Gardens, Florida, USA

Full-time

Description You will be involved in nuclear power plant systems design, including preparation or review of: Modification packages for operating nuclear power plantsFunctional mechanical drawings and/or drawings for nuclear power plant systemsEngineering analyses and evaluations to support modifications and operation of plant systemsTechnical specifications and procurement documents for plant equipmentVendor bid evaluations for plant equipmentStudies and options evaluations for modifications to

Lead Mechanical Engineer 1 - Nuclear

Sargent & Lundy LLC.

Palm Beach Gardens, Florida, USA

Full-time

Description You will be involved in nuclear power plant systems design, including preparation or review of: Modification packages for operating nuclear power plantsFunctional mechanical drawings and/or drawings for nuclear power plant systemsEngineering analyses and evaluations to support modifications and operation of plant systemsTechnical specifications and procurement documents for plant equipmentVendor bid evaluations for plant equipmentStudies and options evaluations for modifications to

Senior Specialist, Mechanical Engineer-MPES

Harris Corporation

Philadelphia, Pennsylvania, USA

Full-time

L3Harris is dedicated to recruiting and developing high-performing talent who are passionate about what they do. Our employees are unified in a shared dedication to our customers' mission and quest for professional growth. L3Harris provides an inclusive, engaging environment designed to empower employees and promote work-life success. Fundamental to our culture is an unwavering focus on values, dedication to our communities, and commitment to excellence in everything we do. L3Harris Technologie

Lead Mechanical Engineer 1 (Power Uprates) - Nuclear

Sargent & Lundy LLC.

Charlotte, North Carolina, USA

Full-time

Description Our electric power generation clients are seeking to increase the power output of their existing power plants to meet the electric demands. This is expanding work in the nuclear industry. You will work on major systems, equipment and plant process in the following areas: Perform consulting level work for power uprates in the nuclear industry.Interface with clients and project teams to present technical discussions and project status.Develop engineering proposals and cost estimates.M