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.
289 jobs match your filters
1w
E
Principal Mechanical Engineer – NPD
Emerson Career Site
We are seeking a highly skilled and technically strong Principal Mechanical Engineer to lead mechanical architecture and design for our Actuator product lines. This role requires deep expertise in drive train and gear design, mechanical power transmission, housing and enclosure d
Houston, TX, United States
remote
1w
R
Principal Mechanical Engineer - Mechanism Design
RTX
Date Posted: 2026-06-09

 Country: United States of America Location: US-MA-MARLBOROUGH-MA1 ~ 1001 Boston Post Rd ~ BLDG 1 Position Role Type: Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirements: The ability to obtain and maintain a U.S. government issue
US-MA-MARLBOROUGH-MA1 ~ 1001 Boston Post Rd ~ BLDG 1
onsiteFull-time
1w
R
Principal Mechanical Engineer, Control Actuation Systems
RTX
Date Posted: 2026-06-09

 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 cle
US-AL-HUNTSVILLE-315 ~ 315 Bob Heath Dr ~ BOB HEATH
onsiteFull-time
1w
M
Principal Mechanical Engineer(HVAC)
McDermott External Career Site
The Principal Mechanical Engineer interprets internal and external business challenges in the Mechanical discipline. The role requires specialized depth and breadth of expertise in Mechanical Engineering.
Dubai, Dubai, United Arab Emirates
remote
1w
Principal Mechanical Engineer, R&D
Edwards Lifesciences
Innovation starts from the heart. At Edwards, we put patients first. We invest a significant proportion of our revenue towards research and development to drive and develop groundbreaking medical innovations for structural heart disease. As part of our R&D Engineering team, you w
USA - California – Irvine
onsiteFull-time
1w
A
Principal Mechanical Engineer, Water Sector
AECOM
Start here. Grow here. Are you ready to shape the future of water infrastructure? We’re looking for a Principal Mechanical Engineer to join our growing South West and Wales water team, with flexibility to be based out of one of our South West offices (Exeter, Bristol & Cardiff).
Cardiff, United Kingdom
hybridFull-timeAssociateEasy Apply
1w
A
Principal Mechanical Engineer, Water Sector
AECOM
Start here. Grow here. Are you ready to shape the future of water infrastructure? We’re looking for a Principal Mechanical Engineer to join our growing South West and Wales water team, with flexibility to be based out of one of our South West offices (Exeter, Bristol & Cardiff).
Exeter, United Kingdom
hybridFull-timeAssociateEasy Apply
1w
A
Principal Mechanical Engineer, Water Sector
AECOM
Start here. Grow here. Are you ready to shape the future of water infrastructure? We’re looking for a Principal Mechanical Engineer to join our growing South West and Wales water team, with flexibility to be based out of one of our South West offices (Exeter, Bristol & Cardiff).
Bristol, 3 RIVERGATE, United Kingdom
hybridFull-timeAssociateEasy Apply
2w
A
Principal Mechanical Engineer, Valve Engineering
Applied
Role Summary: The Principal Mechanical Engineer provides senior-level technical leadership for the design, development, and sustainment of complex valve and actuator products. This role may be based at a Flowserve site such as Houston, TX; Cookeville, TN; Vernon, CA; or Lynchbur
Springville, Utah, US
onsiteFull-time
2w
W
Principal Mechanical Engineer - Lima
Worley
Construyendo sobre nuestro pasado. Listos para el futuro Worley es una firma global de servicios profesionales compuesta por expertos en energía, productos químicos y recursos. Nos asociamos con clientes para entregar proyectos y crear valor durante la vida útil de sus activos. E
Lima, Callao Region, PE
hybrid
2w
Principal Mechanical Engineer - HVAC
Parsons Corporation
In a world of possibilities, pursue one with endless opportunities. Imagine Next! At Parsons, you can imagine a career where you thrive, work with exceptional people, and be yourself. Guided by our leadership vision of valuing people, embracing agility, and fostering growth, we
US - TN, Kingsport
onsiteFull-time
2w
Principal Mechanical Engineer, Development
BAE Systems, Inc.
Job Description BAE Systems is seeking a Senior Mechanical Engineer to join our team in Nashua, NH! “We Protect Those Who Protect Us®” is our mission, and we’re looking for engineers who share our passion in developing a full range of first-of-its-kind technologies and equipment
Nashua, New Hampshire, United States
onsiteFull-time
2w
W
Principal Mechanical Engineer (Lead Design Engineer I - Mechanical)
Worley
About us Worley is a global company of energy, chemicals and resources experts headquartered in Australia. We partner with our customers to deliver projects and create value across the life of their assets. We specialize in consulting, engineering, procurement and construction ac
Ahmadi, Al Ahmadi Governorate, KW
onsite
2w
R
Principal Mechanical Engineer – Electronics Packaging
RTX
Date Posted: 2026-06-01

 Country: United States of America Location: US-AZ-TUCSON-M02 ~ 1151 E Hermans Rd ~ BLDG M02 Position Role Type: Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirements: Active and transferable U.S. government issued security clearan
US-AZ-TUCSON-M02 ~ 1151 E Hermans Rd ~ BLDG M02
onsiteFull-time
2w
N
Principal Mechanical Engineer / Sr. Principal Mechanical Engineer
Northrop Grumman
RELOCATION ASSISTANCE: No relocation assistance available CLEARANCE REQUIRED FOR START: No CLEARANCE TYPE: None TRAVEL: Yes, 10% of the Time Description At Northrop Grumman, our employees have incredible opportunities to work on revolutionary systems that impact people's lives
Gilbert, AZ, US
hybrid
2w
N
Principal Mechanical Engineer / Sr. Principal Mechanical Engineer
Ngc
RELOCATION ASSISTANCE: No relocation assistance available CLEARANCE REQUIRED FOR START: No CLEARANCE TYPE: None TRAVEL: Yes, 10% of the Time Description At Northrop Grumman, our employees have incredible opportunities to work on revolutionary systems that impact people's l
United States-Arizona-Gilbert
hybridFull-time
2w
Principal Mechanical Engineer, Development
BAE Systems, Inc.
Job Description BAE Systems is seeking a Senior Mechanical Engineer to join our team in Merrimack, NH! “We Protect Those Who Protect Us®” is our mission, and we’re looking for engineers who share our passion in developing a full range of first-of-its-kind technologies and equipme
Merrimack, New Hampshire, United States
onsiteFull-time
3w
R
Principal Mechanical Engineer (Onsite)
RTX
Date Posted: 2026-05-28

 Country: United States of America Location: US-CA-EL SEGUNDO-E01 ~ 2000 E El Segundo Blvd ~ BLDG E01 Position Role Type: Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirements: The ability to obtain and maintain a U.S. government i
US-CA-EL SEGUNDO-E01 ~ 2000 E El Segundo Blvd ~ BLDG E01
onsiteFull-time
3w
A
Principal Mechanical Engineer - Water & Wastewater AMP8
Arcadis
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 th
Manchester, England, GB
hybrid
3w
Principal Mechanical Engineer - Water & Wastewater AMP8
Arcadis
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 th
Manchester, Greater Manchester, United Kingdom
hybrid
3w
A
Principal Mechanical Engineering - Water Infrastructure
AECOM
About the Role Due to significant contract awards within our ANZ Water business, we are expanding our Water Infrastructure Team in Melbourne, VIC. Our Water Infrastructure group provides essential services to a diverse range of clients, focusing on water and wastewater treatment,
Melbourne, VIC, Australia
hybridFull-timeAssociateEasy Apply
3w
Principal Mechanical Engineer , NPI
Bloom Energy
At Bloom Energy, our vision for a world powered by clean, reliable, and affordable energy is more than just a dream—we’re making it reality. For over two decades, we’ve been at the forefront of the global energy transition, pioneering solutions that empower critical industries t
Da’an Dist., Taipei City
onsiteFull-time
1mo
Principal Mechanical Engineer -- Hardware Development
Nalco Water, An Ecolab Company
Ecolab está buscando un Técnico Laboratorista Sr que será responsable de las pruebas analíticas que se utilizarán en el desarrollo de especificaciones de nuevos productos. En esta posición realizarás pruebas de calidad, mantenimiento y calibraciones de los instrumentos, además de
Naperville, Illinois, Estados Unidos
onsite
1mo
Principal Mechanical Engineer (Robotics / Mechatronics for Fab Solutions)
Brooks Automation
Brooks is a leading provider of automation solutions with over 40 years of experience in the semiconductor industry, offering precision robotics, integrated automation systems, and contamination control solutions that empower chip manufacturers worldwide. Our product portfolio in
US - Fremont, CA
onsiteFull-time
1mo
R
Principal Mechanical Engineer, Control Actuation Systems
RTX
Date Posted: 2026-05-18 Country: United States of America Location: US-AZ-TUCSON-M10 ~ 3360 E Hemisphere Loop ~ BLDG M10 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-AZ-TUCSON-M10 ~ 3360 E Hemisphere Loop ~ BLDG M10
onsiteFull-time