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18 senior mechanical engineer jobs found in Littleton

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Lockheed Martin
Jun 19, 2026
Senior Mechanical Design Engineer
Lockheed Martin Littleton, CO
Description: Space is a critical domain, connecting our technologies, our security and our humanity. While others view space as a destination, we see it as a realm of possibilities, where we can do more — we can innovate, invest, inspire and integrate our capabilities to transform the future. At Lockheed Martin Space, we aim to harness the full potential of space to cultivate innovation, reduce costs, and push the boundaries of what technology can achieve. We’re creating future-ready solutions, focusing on resiliency and urgency through our 21st Century Security® vision. We’re erasing boundaries and forming partnerships across industries and around the world. We’re advancing spacecraft and the workforce to fuel the next generation. And we’re reimagining how space can connect us, ensuring security and prosperity. Join us in shaping a new era in space and find a career that's built for you. Lockheed Martin is seeking a senior mechanical engineer to aid in structural design...
Lockheed Martin
Jun 19, 2026
Orion Senior Systems Engineer
Lockheed Martin Littleton, CO
Description: Space is a critical domain, connecting our technologies, our security and our humanity. While others view space as a destination, we see it as a realm of possibilities, where we can do more — we can innovate, invest, inspire and integrate our capabilities to transform the future. At Lockheed Martin Space, we aim to harness the full potential of space to cultivate innovation, reduce costs, and push the boundaries of what technology can achieve. We’re creating future-ready solutions, focusing on resiliency and urgency through our 21st Century Security® vision. We’re erasing boundaries and forming partnerships across industries and around the world. We’re advancing spacecraft and the workforce to fuel the next generation. And we’re reimagining how space can connect us, ensuring security and prosperity. Join us in shaping a new era in space and find a career that's built for you. Lockheed Martin Space is seeking a full-time Orion Senior Systems Engineer. Be a part of...
Lockheed Martin
Jun 19, 2026
Orion Senior Systems Engineer
Lockheed Martin Littleton, CO
Description: Space is a critical domain, connecting our technologies, our security and our humanity. While others view space as a destination, we see it as a realm of possibilities, where we can do more — we can innovate, invest, inspire and integrate our capabilities to transform the future. At Lockheed Martin Space, we aim to harness the full potential of space to cultivate innovation, reduce costs, and push the boundaries of what technology can achieve. We’re creating future-ready solutions, focusing on resiliency and urgency through our 21st Century Security® vision. We’re erasing boundaries and forming partnerships across industries and around the world. We’re advancing spacecraft and the workforce to fuel the next generation. And we’re reimagining how space can connect us, ensuring security and prosperity. Join us in shaping a new era in space and find a career that's built for you. Lockheed Martin Space is seeking a full-time Orion Senior Systems Engineer. Be a part of...
Lockheed Martin
Jun 19, 2026
Senior Quality Engineer
Lockheed Martin Littleton, CO
Description: Space is a critical domain, connecting our technologies, our security and our humanity. While others view space as a destination, we see it as a realm of possibilities, where we can do more— we can innovate, invest, inspire and integrate our capabilities to transform the future. At Lockheed Martin Space, we aim to harness the full potential of space to cultivate innovation, reduce costs, and push the boundaries of what technology can achieve. We’re creating future-ready solutions, focusing on resiliency and urgency through our 21st Century Security® vision. We’re erasing boundaries and forming partnerships across industries and around the world. We’re advancing spacecraft and the workforce to fuel the next generation. And we’re reimagining how space can connect us, ensuring security and prosperity. Join us in shaping a new era in space and find a career that's built for you. This position is in one of the Coolest places to work: Denver, Colorado. Lockheed...
Lockheed Martin
Jun 13, 2026
Systems Engineer, Principal - Survivability & Nuclear Hardness
Lockheed Martin Littleton, CO
Description: Space is a critical domain, connecting our technologies, our security and our humanity. While others view space as a destination, we see it as a realm of possibilities, where we can do more — we can innovate, invest, inspire and integrate our capabilities to transform the future. At Lockheed Martin Space, we aim to harness the full potential of space to cultivate innovation, reduce costs, and push the boundaries of what technology can achieve. We’re creating future-ready solutions, focusing on resiliency and urgency through our 21st Century Security® vision. We’re erasing boundaries and forming partnerships across industries and around the world. We’re advancing spacecraft and the workforce to fuel the next generation. And we’re reimagining how space can connect us, ensuring security and prosperity. Join us in shaping a new era in space and find a career that's built for you. As a Principal Systems Engineer and the authority in Survivability Engineering, you will...
Lockheed Martin
Jun 04, 2026
SDN Backbone Chief Engineer
Lockheed Martin Littleton, CO
Description: Space is a critical domain, connecting our technologies, our security and our humanity. While others view space as a destination, we see it as a realm of possibilities, where we can do more — we can innovate, invest, inspire and integrate our capabilities to transform the future. At Lockheed Martin Space, we aim to harness the full potential of space to cultivate innovation, reduce costs, and push the boundaries of what technology can achieve. We’re creating future-ready solutions, focusing on resiliency and urgency through our 21st Century Security® vision. We’re erasing boundaries and forming partnerships across industries and around the world. We’re advancing spacecraft and the workforce to fuel the next generation. And we’re reimagining how space can connect us, ensuring security and prosperity. This position is contingent upon contract award to Lockheed Martin. Estimated award date is currently August 2026. The applicant selected will be subject to a...
Lockheed Martin
Jun 04, 2026
Engineering Test Vehicle, Test Engineering Sr
Lockheed Martin Littleton, CO
Description: As the electronics engineer you will be responsible for testing a variety of electronic equipment, system interconnect and cabling designs in support of the Test Support Products You will participate in requirements analysis, configuration determination, design, materiel procurement, manufacturing, test and acceptance of cabling & interconnects for a wide variety of electrical and electromechanical test systems and multi-function integrated test equipment in support of the US Navy's Ballistic Missile Flight Test Program. As the electronics engineer you will mentor junior engineers, interface extensively with our customer, as well as, senior leadership. You will also create/update project/process documentation that align to project requirements. Specific responsibilities include but are not limited to: Lead the design, procurement, assembly, test, and verification of missile test systems, including data review and trending Develop requirements from...
Lockheed Martin
Jun 04, 2026
GN&C Systems Integration Engineer
Lockheed Martin Littleton, CO
Description: Space is a critical domain, connecting our technologies, our security and our humanity. While others view space as a destination, we see it as a realm of possibilities, where we can do more — we can innovate, invest, inspire and integrate our capabilities to transform the future. At Lockheed Martin Space, we aim to harness the full potential of space to cultivate innovation, reduce costs, and push the boundaries of what technology can achieve. We’re creating future-ready solutions, focusing on resiliency and urgency through our 21st Century Security® vision. We’re erasing boundaries and forming partnerships across industries and around the world. We’re advancing spacecraft and the workforce to fuel the next generation. And we’re reimagining how space can connect us, ensuring security and prosperity. Join us in shaping a new era in space and find a career that's built for you. A Level 5 GN&C Integration Engineer drives the end-to-end development, integration,...
Lockheed Martin
May 23, 2026
Software Integration/Test Engineer
Lockheed Martin Littleton, CO
Description: As a Software Integration/Test Engineer for Assembly Test Launch Operations (ATLO) Test Labs and Services, you will: • Provide Operations & Maintenance (O&M) Software support to include rebuilding machines, patching, debugging, and reconfiguring existing Automated Test Systems. • Testing new software developed by the larger team as an independent reviewer and tester. • Author Acceptance Test Procedures (ATPs), Engineering Functional Checkout Procedures (EFCPs), and Standard Operating Procedures (SOPs) for deployed software. • Collaborate with Systems, mechanical, electrical, software, and test engineers across labs and programs to develop, test, and validate new system capabilities to ensure a complete working solution. • Develop 3D CAD models and 2D drawings as part of integrated design solutions • Assist technicians during system assembly, checkout, and validation and lead troubleshooting efforts. • Must be interested and have experience working with...
Lockheed Martin
Apr 24, 2026
Manufacturing Engineer - Final Assembly/Integration
Lockheed Martin Littleton, CO
Description: At the dawn of a new space age, Lockheed Martin is a pioneer, partner, innovator and builder. Our amazing people are on a mission to make a difference in the world and every day we use our unique skills and experiences to create, design and build solutions to some of the worlds’ hardest engineering problems. Our culture encourages employees to dream big, perform with excellence and create incredible products. We provide the resources, inspiration and focus and if you have the passion and courage to dream big, we want to build a better tomorrow with you. Going to space is just the beginning. It’s what you do when you get there that matters. Lockheed Martin builds the satellites and spacecraft that do amazing things in space for government and commercial customers. Connecting people. Advancing discovery. And protecting what matters most. Lockheed Martin-built satellites give earlier warning of severe weather, connect troops on the battlefield, and deliver GPS...
Lockheed Martin
Apr 23, 2026
Systems Integration Manufacturing Engineer, Staff
Lockheed Martin Littleton, CO
Description: The mission matters. So do the people behind it. With advancing defense technology at our core, what sets us apart is a culture of collaboration, purpose, and impact. What is the mission? Space is a critical domain, connecting our technologies, our security and our humanity. While others view space as a destination, we see it as a realm of possibilities, where we can do more— we can innovate, invest, inspire and integrate our capabilities to transform the future. At Lockheed Martin Space, we aim to harness the full potential of space to cultivate innovation, reduce costs, and push the boundaries of what technology can achieve. We’re creating future-ready solutions, focusing on resiliency and urgency through our 21st Century Security® vision. What does this role look like? ➥ We are the voice steering today’s design decisions to drive tomorrow’s production success. ➥ This Manufacturing Engineering position will support Space Vehicle design...
Lockheed Martin
Jun 19, 2026
Cable and Harness Design Manager
Lockheed Martin Littleton, CO
Description: We are looking for an Associate Manager to join our Spacecraft Flight Cable and Harness Design team! The team supports multiple lines of business at Lockheed Martin which means you could be designing wiring systems for the next mission to Mars or the next generation of GPS satellites. Location: This position does not support teleworking ; you will be located near our Lockheed Martin Space facility in: Littleton CO and be expected to work a flexible 9x80 schedule in the office full-time. What does this role look like? • Provide leadership, functional management and technical direction to a team of engineers responsible for electromechanical engineering research, design, development, and production support for the Harness Spacecraft Flight Team. • Responsible to provide the functional directorate, program management, and their customers’ effective project management, accurate and detailed plans and schedules and efficient production support. • Responsible...
Lockheed Martin
Jun 19, 2026
Cable and Harness Design Manager
Lockheed Martin Littleton, CO
Description: We are looking for an Electromechanical Engineering Manager to join our Spacecraft Flight Cable and Harness Design team! The team supports multiple lines of business at Lockheed Martin which means you could be designing wiring systems for the next mission to Mars or the next generation of GPS satellites. Location: This position does not support teleworking ; you will be located near our Lockheed Martin Space facility in: Littleton CO or Sunnyvale CA and be expected to work a flexible 9x80 schedule in the office full-time. What does this role look like? • Provide leadership, functional management and technical direction to a team of engineers responsible for electromechanical engineering research, design, development, and production support for the Harness Spacecraft Flight Team. • Responsible to provide the functional directorate, program management, and their customers’ effective project management, accurate and detailed plans and schedules and...
Lockheed Martin
Jun 19, 2026
Software Engineering Asc Manager (Spacecraft Test Systems)
Lockheed Martin Littleton, CO
Description: Space is a critical domain, connecting our technologies, our security and our humanity. While others view space as a destination, we see it as a realm of possibilities, where we can do more — we can innovate, invest, inspire and integrate our capabilities to transform the future. At Lockheed Martin Space, we aim to harness the full potential of space to cultivate innovation, reduce costs, and push the boundaries of what technology can achieve. We’re creating future-ready solutions, focusing on resiliency and urgency through our 21st Century Security® vision. We’re erasing boundaries and forming partnerships across industries and around the world. We’re advancing spacecraft and the workforce to fuel the next generation. And we’re reimagining how space can connect us, ensuring security and prosperity. Join us in shaping a new era in space and find a career that's built for you. OVERVIEW: As part of the Engineering and Technology Raptor Avionics Organization at...
Lockheed Martin
Jun 02, 2026
Guidance, Nav & Ctrl Asc Mgr (Level IV) - Secret
Lockheed Martin Littleton, CO
Description: About Lockheed Martin Space: Space is a critical domain, connecting our technologies, our security, and our humanity. While others view space as a destination, we see it as a realm of possibilities, where we can do more — we can innovate, invest, inspire, and integrate our capabilities to transform the future. At Lockheed Martin Space, we aim to harness the full potential of space to cultivate innovation, reduce costs, and push the boundaries of what technology can achieve. We’re creating future-ready solutions, focusing on resiliency and urgency through our 21st Century Security® vision. We’re erasing boundaries and forming partnerships across industries and around the world. We’re advancing spacecraft and the workforce to fuel the next generation. And we’re reimagining how space can connect us, ensuring security and prosperity. Join us in shaping a new era in space and find a career that's built for you About the Role: We are seeking an experienced Guidance,...
Lockheed Martin
Jun 02, 2026
Guidance, Navigation, & Control Engineer IV, Navigation Specialist - S
Lockheed Martin Littleton, CO
Description: About Lockheed Martin Space: Space is a critical domain, connecting our technologies, our security, and our humanity. While others view space as a destination, we see it as a realm of possibilities, where we can do more — we can innovate, invest, inspire, and integrate our capabilities to transform the future. At Lockheed Martin Space, we aim to harness the full potential of space to cultivate innovation, reduce costs, and push the boundaries of what technology can achieve. We’re creating future-ready solutions, focusing on resiliency and urgency through our 21st Century Security® vision. We’re erasing boundaries and forming partnerships across industries and around the world. We’re advancing spacecraft and the workforce to fuel the next generation. And we’re reimagining how space can connect us, ensuring security and prosperity. Join us in shaping a new era in space and find a career that's built for you About the Role: We are seeking an experienced Guidance,...
Lockheed Martin
May 29, 2026
Associate Manager, Cable and Harness Design
Lockheed Martin Littleton, CO
Description: We are looking for an Associate Manager to join our Spacecraft Flight Cable and Harness Design team! The team supports multiple lines of business at Lockheed Martin which means you could be designing wiring systems for the next mission to Mars or the next generation of GPS satellites. Location: This position does not support teleworking ; you will be located near our Lockheed Martin Space facility in: Littleton CO and be expected to work a flexible 9x80 schedule in the office full-time. What does this role look like? • Provide leadership, functional management and technical direction to a team of engineers responsible for electromechanical engineering research, design, development, and production support for the Harness Spacecraft Flight Team. • Responsible to provide the functional directorate, program management, and their customers’ effective project management, accurate and detailed plans and schedules and efficient production support. • Responsible...
Lockheed Martin
May 28, 2026
Non-destructive Test Technician
Lockheed Martin Littleton, CO
Description: Performs non-destructive testing (NDT) on materials, manufactured items, and components. Inspects metallic, non-metallic, and composite materials, parts, and assemblies for defects using automated and manual NDT methods including ultrasound, infrared thermography, radiography, penetrant, magnetic particle, eddy current, and visual testing. Reads and interprets technical procedures and work instructions to conduct evaluations for acceptance/rejection of hardware/products. Provides other technical support for all LM Space programs and sites. Works primarily with a team but also works independently to perform day-to-day tasks. Additionally, works with remote teams of NDT personnel. Supports program-required inspections during off-shifts, sometimes with short notice, to ensure program hardware production is on-schedule. Upon starting in your new role, your manager and senior NDT engineers will help you develop a plan to acquire and maintain multiple LM Space NDT Level II...
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