Browse Jobs
Browse fresh roles from company career pages, then filter by keyword, location, salary, skills, remote scope, and more. Each listing links back to the employer-controlled apply path when available.
291 jobs match your filters
3w
Principal Mechanical Engineer
Trident
Position Title: Principal Mechanical Engineer Requisition ID: Position Location: Sterling, VA Position Reports To: Manager, Mechanical Engineering Supervises Others: No At Trident Systems Space Electronic Systems (SES) division, we believe in the power of using strong engineering
Sterling, VA, US
hybridFull Time Employee Full-Time
3w
R
Principal Mechanical Engineer
Re:Build Manufacturing
Who is Re:Build DAPR Engineering and Re:Build Manufacturing Re:Build DAPR Engineering, LLC (DAPR) is an engineering design and analysis consulting firm in Merrimack, New Hampshire. We work with customers across many industries to develop and deliver turnkey industrial machines to
Kalamazoo, MI
onsiteEasy Apply
3w
N
Principal Mechanical Engineer
neonaerospace
Aerospace is at a turning point — costs are rising, supply chains are strained, and old ways of building can’t keep up. At Neon Aero, we’re breaking that mold. We move fast, think big, and combine start-up agility with aerospace expertise to design, build, and scale aircraft in w
Irvine, CA
hybridEasy Apply
3w
Principal Mechanical Engineer
Saronic Technologies
Saronic Technologies is a leader in revolutionizing autonomy at sea, dedicated to developing state-of-the-art solutions that enhance maritime operations through autonomous and intelligent platforms. Position Overview Saronic is seeking a Principal Mechanical Engineer to provide
Austin, TX
remoteFull-timeEasy Apply
3w
A
Principal Mechanical Engineer
ASSYSTEM
🛠️ Support Requirements Capture : Manage and challenge requirements for existing waste containers and interface equipment. 📋 Support Engineering Activities : Assist as defined by the Engineering Manager. 🤝 Mentorship : Provide guidance and assurance to Senior Engineers and Design
Whitehaven, England, United Kingdom
hybridFull-timeMid-Senior LevelEasy Apply
3w
R
Principal Mechanical Engineer
RTX
Date Posted: 2026-05-27 Country: United States of America Location: US-AL-HUNTSVILLE-315 ~ 315 Bob Heath Dr ~ BOB HEATH Position Role Type: Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirements: Active and transferable U.S. government issued security clearance is
US-AL-HUNTSVILLE-315 ~ 315 Bob Heath Dr ~ BOB HEATH
onsiteFull-time
3w
Principal Mechanical Engineer
WSP
What if you could do the kind of work the world needs? At WSP, you can access our global scale, contribute to landmark projects and connect with the brightest minds in your field. You can embrace your curiosity in a culture that celebrates new ideas and diverse perspectives enabl
Wellington, Wellington, New Zealand
hybrid
3w
Principal Mechanical Engineer
WSP in the U.S.
What if you could do the kind of work the world needs? At WSP, you can access our global scale, contribute to landmark projects and connect with the brightest minds in your field. You can embrace your curiosity in a culture that celebrates new ideas and diverse perspectives enabl
Wellington, Wellington, New Zealand
hybrid
3w
Principal Mechanical Engineer
WSP in Australia
What if you could do the kind of work the world needs? At WSP, you can access our global scale, contribute to landmark projects and connect with the brightest minds in your field. You can embrace your curiosity in a culture that celebrates new ideas and diverse perspectives enabl
Wellington, Wellington, New Zealand
hybrid
3w
Principal Mechanical Engineer
WSP in the Middle East
What if you could do the kind of work the world needs? At WSP, you can access our global scale, contribute to landmark projects and connect with the brightest minds in your field. You can embrace your curiosity in a culture that celebrates new ideas and diverse perspectives enabl
Wellington, Wellington, New Zealand
hybrid
3w
Principal Mechanical Engineer
WSP in New Zealand
What if you could do the kind of work the world needs? At WSP, you can access our global scale, contribute to landmark projects and connect with the brightest minds in your field. You can embrace your curiosity in a culture that celebrates new ideas and diverse perspectives enabl
Wellington, Wellington, New Zealand
hybrid
3w
Principal Mechanical Engineer
WSP in India
What if you could do the kind of work the world needs? At WSP, you can access our global scale, contribute to landmark projects and connect with the brightest minds in your field. You can embrace your curiosity in a culture that celebrates new ideas and diverse perspectives enabl
Wellington, Wellington, New Zealand
hybrid
3w
Principal Mechanical Engineer
WSP in Africa
What if you could do the kind of work the world needs? At WSP, you can access our global scale, contribute to landmark projects and connect with the brightest minds in your field. You can embrace your curiosity in a culture that celebrates new ideas and diverse perspectives enabl
Wellington, Wellington, New Zealand
hybrid
4w
R
Principal Mechanical Engineer
RTX
Date Posted: 2026-05-22 Country: United States of America Location: US-KY-LOUISVILLE-500 ~ 1001 Cheri Wy ~ BLDG 500, Ste 300, 400, 500 Position Role Type: Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirements: Active and transferable U.S. government issued securit
US-KY-LOUISVILLE-500 ~ 1001 Cheri Wy ~ BLDG 500, Ste 300, 400, 500
onsiteFull-time
4w
H
Principal Mechanical Engineer
Henkel
About this Position At Henkel, you’ll be part of an organization that’s shaping the future through innovation, sustainability and collaboration. With our trusted brands like Persil®, ‘all®, Loctite®, Snuggle®, and Schwarzkopf® and our cutting-edge technologies, you’ll have countl
Rocky Hill, CT, CT, US
onsite
4w
A
Principal Mechanical Engineer
AECOM
Start here. Grow here. At AECOM, we boast an impressive and expansive Water Team operating across the globe. With approximately 600 experts sitting in our UK and Ireland Offices, we are constantly evolving to remain at the forefront of innovation, and we’re on the lookout for tal
Perth, United Kingdom
hybridFull-timeAssociateEasy Apply
4w
A
Principal Mechanical Engineer
AECOM
Start here. Grow here. At AECOM, we boast an impressive and expansive Water Team operating across the globe. With approximately 600 experts sitting in our UK and Ireland Offices, we are constantly evolving to remain at the forefront of innovation, and we’re on the lookout for tal
Inverness, United Kingdom
remoteFull-timeAssociateEasy Apply
4w
A
Principal Mechanical Engineer
AECOM
Start here. Grow here. At AECOM, we boast an impressive and expansive Water Team operating across the globe. With approximately 600 experts sitting in our UK and Ireland Offices, we are constantly evolving to remain at the forefront of innovation, and we’re on the lookout for tal
Edinburgh, United Kingdom
hybridFull-timeAssociateEasy Apply
4w
Principal Mechanical Engineer
Nalco Water, An Ecolab Company
Ecolab is a global sustainability leader offering water, hygiene, and infection prevention solutions and services. With annual sales of $15 billion, we operate in over 170 countries and employ more than 48,000 associates worldwide. Our mission is to protect people and the vital r
Naperville, Illinois, Estados Unidos
onsite
1mo
Principal Mechanical Engineer
Sierra Space
Sierra Space Careers: At Sierra Space, we build the missions and systems that keep our world secure in the domain above Earth. Sierra Space team members share a spirit of innovation and collaboration and a belief that we can deliver on the boldest missions in space today.
Broomfield, CO
hybridFull-time
1mo
H
Principal Mechanical Engineer
Hpe
Principal Mechanical Engineer This role has been designed as ‘’Onsite’ with an expectation that you will primarily work from an HPE office. Who We Are: Hewlett Packard Enterprise is the global edge-to-cloud company advancing the way people live and work. We help companies c
Spring, Texas, United States of America
onsiteFull-time
1mo
H
Principal Mechanical Engineer
Hpe
Principal Mechanical Engineer This role has been designed as ‘’Onsite’ with an expectation that you will primarily work from an HPE office. Who We Are: Hewlett Packard Enterprise is the global edge-to-cloud company advancing the way people live and work. We help companies c
Spring, Texas, United States of America
onsiteFull-time
1mo
H
Principal Mechanical Engineer
Hpe
Principal Mechanical Engineer This role has been designed as ‘’Onsite’ with an expectation that you will primarily work from an HPE office. Who We Are: Hewlett Packard Enterprise is the global edge-to-cloud company advancing the way people live and work. We help companies c
Spring, Texas, United States of America
onsiteFull-time
1mo
Principal Mechanical Engineer
Hewlett Packard Enterprise
Principal Mechanical Engineer This role has been designed as ‘’Onsite’ with an expectation that you will primarily work from an HPE office. Who We Are: Hewlett Packard Enterprise is the global edge-to-cloud company advancing the way people live and work. We help companies connect
Spring, Texas, 77389-1767
onsiteFull-time
1mo
Principal Mechanical Engineer
Mesa Associates, Inc
Mesa Associates, Inc. is seeking a Principal Mechanical Engineer to join our team based in Knoxville, TN in delivering a wide range of projects for our Generation, Industrial, and Government clients. The candidate will work in a collaborative environment alongside other engineers
Knoxville, TN, United States
hybridFull-time