Mechanical Systems Engineer Jobs in United States

Astrolab is The Lunar Operations Company. We design and build the systems and hardware the lunar economy will come to depend on — rovers, power, and data networks for sustained operations on the Moon. We are focused on the problems that must be solved before the next chapter of human exploration can

Build the Impossible. Engineer the Future. Are you the kind of engineer who thrives at the intersection of design, fabrication, testing, and innovation? Do you enjoy transforming ambitious concepts into fully functioning hardware systems? If so, we’re looking for an Electromechanical Systems Enginee

Position Summary The Mechanical Systems Engineer is responsible for the mechanical design, analysis, development, testing and life-cycle support of machinery and equipment. This role owns the complete mechanical design of mechanical equipment, robotic cells, and automated manufacturing systems, incl

About Loft Federal Loft Federal is committed to delivering the U.S. national security space community a fast, affordable, and streamlined pathway to orbit. As a wholly owned U.S. subsidiary of Loft Orbital Solutions, Inc., we specialize in providing mission-

ABOUT US: Astro Mechanica is a vertically integrated aerospace company building a faster, more connected future. Our mission is to democratize high-speed flight by making supersonic travel flexible, accessible, and sustainable. We believe that rapid, on-demand, point-to-point global mobility will be

Summary Supports the design and development of aircraft modifications and installations related to mechanical systems, including air conditioning, ventilation, smoke detection, equipment cooling, oxygen, potable water, wastewater, vacuum waste, and refrigerant systems, ensuring fit, fo

We are seeking a results-driven Textile Engineer to join our Mount Holly, NC manufacturing facility. This is a high-impact, hands-on engineering role supporting production efficiency, equipment reliability, and continuous improvement across the operation. You’ll work closely with Operations and Main

Summary Creates complex designs for aircraft modifications and installations related to mechanical systems—including air conditioning, ventilation, smoke detection, equipment cooling, oxygen, potable water, wastewater, vacuum waste, and refrigerant systems—ensuring fit, form, and funct

About the Role We are seeking a highly skilled and experienced Payload Opto-Mechanical Systems Engineer to lead the design, analysis, integration, and verification of advanced spaceborne payloads—including a space telescope and multiple science instruments. In this role, you will collaborate with wo

Summary Creates complex designs for aircraft modifications and installations related to mechanical systems—including air conditioning, ventilation, smoke detection, equipment cooling, oxygen, potable water, wastewater, vacuum waste, and refrigerant systems—ensuring fit, form, and funct

Summary Creates basic designs for aircraft modifications and installations related to mechanical systems—including air conditioning, ventilation, smoke detection, equipment cooling, oxygen, potable water, wastewater, vacuum waste, and refrigerant systems—ensuring fit, form, and functio

Voyager is an innovative space, defense, and national security technology company committed to advancing and delivering transformative, mission-critical solutions. We tackle the most complex challenges to unlock new frontiers for human progress, fortify national security, and protect critical assets

We’re ALTEN Technology USA, an engineering company helping clients bring groundbreaking ideas to life—from advancing space exploration and life-saving medical devices to building autonomous electric vehicles. With 3,000+ experts across North America, we partner with leading companies in aerospace, m

ABOUT ROCKET LAB Rocket Lab is an end-to-end space company delivering responsive launch services, complete spacecraft design and manufacturing, payloads, satellite components, and more – all with the goal of opening access to space. The rockets and satellites we build and launch enable some of the m

Crusoe is on a mission to accelerate the abundance of energy and intelligence. As the only vertically integrated AI infrastructure company built from the ground up, we own and operate each layer of the stack — from electrons to tokens — to power the world's most ambitious AI workloads. When you join