57 senior staff mechanical engineer jobs found

Requisition Id 15442 Overview: Oak Ridge National Laboratory is the largest US Department of Energy (DOE) science and energy laboratory, conducting basic and applied research to deliver transformative solutions to compelling problems in energy and security. The Enrichment Systems Engineering Section is seeking a Senior Machine Design Engineer who will support the Enrichment Science and Engineering Division (ESED) within the Isotope Science and Engineering Directorate (ISED) at Oak Ridge National Laboratory (ORNL). ESED serves the nation in two critical areas: advancing enrichment technologies and exploring stable isotope production and applications. The division leverages an elite staff of scientists and engineers with the world-leading capabilities of ORNL to deliver groundbreaking advancements with a variety of applications, from national security to life-saving medical treatments. ESED is the national steward for the research, development, and demonstration of centrifuge...

Join JB&B and shape the future of the built environment! Founded in1915,Jaros, Baum & Bolleshas been a pillar of engineering innovation in New York City for over a century. Specializing in mechanical, electrical, plumbing (MEP) , JB&B has contributed to some of the most iconic buildings. In October 2025 , JB&B joined forces with Trinity Consultants , a global consulting firm focused on the natural and built environments. JB&B now operates within Trinity's Built Environment division , combining its deep expertise in high-performance building systems with Trinity's strengths in acoustic design, facility operations, commissioning, and technology strategy . This strategic merger expands JB&B's capabilities and offers employees: Access to a broader portfolio of international projects and clients Enhanced career mobility across Trinity's global network Interdisciplinary collaboration with experts in sustainability, environmental science,...

Join JB&B and shape the future of the built environment! Founded in1915,Jaros, Baum & Bolleshas been a pillar of engineering innovation in New York City for over a century. Specializing in mechanical, electrical, plumbing (MEP) , JB&B has contributed to some of the most iconic buildings. In October 2025 , JB&B joined forces with Trinity Consultants, a global consulting firm focused on the natural and built environments. JB&B now operates within Trinity'sBuilt Environment division , combining its deep expertise in high-performance building systems with Trinity's strengths in acoustic design,facility operations,commissioning, andtechnology strategy. This strategic merger expands JB&B's capabilities and offers employees: Access to a broader portfolio of international projects and clients Enhanced career mobility across Trinity's global network Interdisciplinary collaboration with experts in sustainability, environmental science, and...

Hawkins, Inc./WaterSurplus is a trusted and well-known leader in the chemical industry for over 80 years. We have opportunities for motivated hard workers to learn and develop a career with our Water Treatment business segment. Our route sales/delivery approach to supplying products and equipment to our customers in 27+ states ensures superb customer service and support. Our customers include water and wastewater treatment systems, municipal and commercial swimming pools, industrial process and wastewater facilities, and industries like oil/gas and agricultural farmers/growers. Learn more about us at www.hawkinsinc.com (NASDAQ: HWKN). ABOUT THE JOB The Senior Electrical Engineer is responsible for designing, directing, and coordinating instruments and controls electrical engineering across all products, including new equipment, rental fleet, surplus assets, and investment recovery. DUTIES AND RESPONSIBILITIES Designs or reviews customer specifications to ensure...

Join Energy Recovery and Help Build a Sustainable Future At Energy Recovery, we build products that help limit global temperature rise, reduce carbon emissions, provide safe drinking water for millions of people, and bring efficiency and sustainability to a range of industries. Our products help customers avoid approximately 19.7 million metric tons of carbon emissions per year -- equivalent to removing over 4.7million cars from the road! In addition to innovating world-class products that help our customers and the environment, our employees enjoy a diverse, collaborative work culture, as well as extensive company benefits that support the overall wellbeing of our staff. This includes everything from generous health plans and time off, paid family leave, subsidized lunches and company events, and opportunities for charitable giving and volunteering in the community. What You Can Look Forward To: Energy Recovery, Inc. is seeking a qualified candidate for an immediate...

Stanley Consultants is an award-winning and industry-leading global consulting engineering firm, with an unmatched commitment to culture, values, and ethics. We are dedicated to client experience and solve the most complex challenges to create a sustainable, connected, and enriched world for all. As the world changes, Stanley strategically evolves with it, integrating the latest technology, innovation, and resiliency practices. With over a century of experience serving the energy, federal government, transportation, and water sectors, we have helped improve lives and shape the infrastructure systems that connect us. As an employee-owned organization with a People First approach, we stand apart from other engineering consulting and services firms. At Stanley, your voice counts, your growth matters, and your success is our success. Stanley Consultants offers flexible work options, competitive pay and great benefits, a strong sense of community, and the chance to build a meaningful,...

QuantumScape is on a mission to transform energy storage with solid-state lithium-metal battery technology. The company's next-generation batteries are designed to enable greater energy density, faster charging and enhanced safety to support the transition away from legacy energy sources toward a lower carbon future. Job Title: Lead Cell Integration and Pack Engineer (Director) Report To: Consulting Member of Technical Staff or Senior Director Location : Onsite About QS: QuantumScape (NYSE: QS) is on a mission to revolutionize energy storage to enable a sustainable future. The company's next-generation solid-state lithium-metal battery technology is designed to enable greater energy density, faster charging and enhanced safety to support the transition away from legacy energy sources toward a lower carbon future. About the team : The Battery Systems Development team builds and tests systems powered by QS cells. We're a diverse, hands-on group of engineers who value...

About Commonwealth Fusion Systems: Commonwealth Fusion Systems is on a mission to deliver the urgent transition to fusion energy. Combining decades of research, top talent, and new technologies, we're designing and building commercially viable fusion power plants. And working with policymakers and suppliers to build the energy industry of the future. We're in the best position to make it happen. Since 2018, we've raised nearly $3 billion in capital, making us the largest and leading private fusion company in the world. Now we're looking for more thinkers, doers, builders, and makers to join us. People who'll bring new perspectives, solve tough problems, and thrive as part of a team. If that's you and this role fits, we want to hear from you. Join the power movement as a Senior Mechanical Engineer We're looking for a Senior Mechanical Engineer to join our R&D and equipment design team to help build the next generation of thin-film deposition technology. The Senior...

Ameresco, Inc. (NYSE:AMRC) is a leading energy solutions provider dedicated to helping customers reduce costs, enhance resilience, and decarbonize to net zero in the global energy transition. We are a trusted, full-service partner to public sector and government entities, K-12 schools, higher education, utilities, and healthcare customers across the U.S., Canada, the U.K., and Europe. At Ameresco, we show the way by developing, constructing and operating tailored smart energy efficiency solutions, distributed energy resources, and infrastructure upgrades that drive cost savings, resilience, decarbonization, and innovation. Our comprehensive portfolio is built to address the challenges of today and adapt the future, ensuring long-term sustainability and success for our customers. Ameresco's Distributed Energy Resource (DER) team is seeking a highly skilled and experienced Senior Electrical Engineer to join our dynamic engineering team based in Charlotte, NC . NOTE: May also...

Ameresco, Inc. (NYSE:AMRC) is a leading energy solutions provider dedicated to helping customers reduce costs, enhance resilience, and decarbonize to net zero in the global energy transition. We are a trusted, full-service partner to public sector and government entities, K-12 schools, higher education, utilities, and healthcare customers across the U.S., Canada, the U.K., and Europe. At Ameresco, we show the way by developing, constructing and operating tailored smart energy efficiency solutions, distributed energy resources, and infrastructure upgrades that drive cost savings, resilience, decarbonization, and innovation. Our comprehensive portfolio is built to address the challenges of today and adapt the future, ensuring long-term sustainability and success for our customers. Ameresco is seeking a dynamic and experienced Senior Project Engineer to join our Alternative Fuels team based in Portland, ME or Charlotte, NC to support Renewable Natural Gas(RNG) and Landfill...

Job Type Full-time Description JOB PURPOSE: The Mechanical Engineer will help provide comprehensive HVAC engineering services geared to cover all facets of the construction process, beginning with design initiation, through the commissioning of systems. This position will report to a Senior Project Manager in the Mechanical Engineering Department and office Principal and serve as a key member of the Engineering team. At Energy 1, our passion is to Demand Better. We live by our core values and look for employees that love to learn new things, put the team first, are customer centric, show grit and relentless determination, and lead with inventive problem solving. DUTIES AND RESPONSIBILITIES: The Mechanical Engineer will possess strong abilities to work collaboratively with all members of the design team, mentor designers and teach mechanical staff for their progression, accept responsibility of all designs under their direct supervision, and effectively communicate with...

Job Type Full-time Description JOB TITLE: Mechanical Engineer PE - California JOB PURPOSE: The Mechanical Engineer will help provide comprehensive HVAC engineering services geared to cover all facets of the construction process, beginning with design initiation, through the commissioning of systems. This position will report to a Senior Project Manager in the Mechanical Engineering Department and office Principal and serve as a key member of the Engineering team. At Energy 1, our passion is to Demand Better. We live by our core values and look for employees that love to learn new things, put the team first, are customer centric, show grit and relentless determination, and lead with inventive problem solving. DUTIES AND RESPONSIBILITIES: The Mechanical Engineer will possess strong abilities to work collaboratively with all members of the design team, mentor designers and teach mechanical staff for their progression, accept responsibility of all designs under their...

about the position... Our Engineering team is proof that the Power Design "work hard, play hard" motto works! With continuous design-build projects in progress all over the country, this team is leading the industry in innovative techniques with a focus on coordinated, value-conscious design that has led to more than 95% of our clients becoming repeat customers. As a senior member of the engineering team, you will work directly with clients, attend client meetings, lead other engineering team members, mentor junior staff, and ensure the quality of structural documentation. The senior structural engineer executes and eventually leads the selection and layout of gravity and lateral systems, performs technical analysis, and drives innovative, high-quality structural designs. position details/responsibilities... Execute and eventually lead gravity and lateral system selection and layout, technical analysis, and design for projects, while contributing to workflow planning. Work...

GFT is seeking experienced Mid to Senior Substation Engineers (Electrical Engineers) to join our expanding Power Group. As a substation engineer, you will lead or support utility and power substation projects and clients. This role is a hybrid in our St. Louis, MO, Chicago,IL, Marlton,NJ, Pittsburgh, PA, Phoenix, AZ, Roanoke, VA or Charlotte, NC. or FULLY Remote for the right person. Joining the power team at GFT means engaging in cutting-edge projects that drive the future of energy infrastructure. Our team excels in providing solutions for power transmission, distribution, and renewable energy, utilizing advanced technologies and creative problem-solving to meet today's diverse energy needs. Be part of a dynamic group dedicated to enhancing system reliability, sustainability, and efficiency while shaping the energy landscape for a resilient and sustainable future. Discover some of our signature power and energy projects here. What you'll be challenged to do: As...

Are you ready to be part of a company that's not just talking about the future, but actively shaping it? Join The AES Corporation (NYSE: AES), a Fortune 500 company that's leading the charge in the global energy revolution. With operations spanning 14 countries , AES is committed to shaping a future through innovation and collaboration. Our dedication to innovation has earned us recognition as one of the Top Ten Best Workplaces for Innovators by Fast Company in 2022. And with our certification as a Great Place to Work , you can be confident that you're joining a company that values its people just as much as its groundbreaking ideas. AES is proudly ranked #1 globally in renewable energy sales to corporations, and with $12.7B in revenues in 2023 , we have the resources and expertise to make a significant impact as we provide electricity to 25 million customers worldwide. As the world moves towards a net-zero future, AES is committed to meeting the Paris Agreement's goals...

GFT is seeking experienced Mid to Senior Substation Engineers (Electrical Engineers) to join our expanding Power Group. As a substation engineer, you will lead or support utility and power substation projects and clients. This role is a remote role. Joining the power team at GFT means engaging in cutting-edge projects that drive the future of energy infrastructure. Our team excels in providing solutions for power transmission, distribution, and renewable energy, utilizing advanced technologies and creative problem-solving to meet today's diverse energy needs. Be part of a dynamic group dedicated to enhancing system reliability, sustainability, and efficiency while shaping the energy landscape for a resilient and sustainable future. Discover some of our signature power and energy projects here. What you'll be challenged to do: As a Sr. Substation Engineer, you will lead or support utility and power substation projects and clients. You will have need to have...

ROLE Surerus Murphy Joint Venture (SMJV) is seeking a Project Engineering Lead to support pipeline and/or oil & gas facility construction projects in Northern Alberta, Northern BC, and Southern BC. The Project Engineering Lead is an integral part of the field-based Construction Management Team and directly supervises the entirety of a projects Technical Services group, consisting of Engineers, Drafters, Surveyors, GIS Technicians, and Drone Operators all supporting the construction of world class pipeline infrastructure. Interfacing with the Project Manager, Superintendent, Assistant Superintendent, and Technical Services Group on a continual basis, the Project Engineering Lead is responsible to ensure that all technical work products and requirements are identified and developed in accordance with all project requirements, applicable standards, specifications and regulations, and delivered with the class leading professionalism, practicality, safety and efficiency...

ROLE Surerus Murphy Joint Venture (SMJV) is seeking a Project Engineering Lead to support pipeline and/or oil & gas facility construction projects in Northern Alberta, Northern BC, and Southern BC. The Project Engineering Lead is an integral part of the field-based Construction Management Team and directly supervises the entirety of a projects Technical Services group, consisting of Engineers, Drafters, Surveyors, GIS Technicians, and Drone Operators all supporting the construction of world class pipeline infrastructure. Interfacing with the Project Manager, Superintendent, Assistant Superintendent, and Technical Services Group on a continual basis, the Project Engineering Lead is responsible to ensure that all technical work products and requirements are identified and developed in accordance with all project requirements, applicable standards, specifications and regulations, and delivered with the class leading professionalism, practicality, safety and efficiency...

ROLE Surerus Murphy Joint Venture is seeking a Project Engineer to support pipeline and/or oil & gas facility construction projects in Northern Alberta, Northern BC, and Southern BC. Reporting to the Project Engineering Lead, Project Engineers form a part of the project's Technical Services Group, consisting of Engineers, Drafters, Surveyors, GIS Technicians, and Drone Operators all supporting the construction of world class pipeline infrastructure. Project Engineers work for the Technical Services Group, Construction personnel and the Project Management team to develop and execute practical, safe, efficient, and novel construction work plans and processes, while ensuring all works adhere to applicable standards, specifications, and regulations. KEY RESPONSIBILITIES Understand and apply client standards and specifications, internal company standards, industry codes and standards, as well as regulatory requirements relative to the scope of SMJV's...

ROLE Surerus Murphy Joint Venture is seeking a Project Engineer to support pipeline and/or oil & gas facility construction projects in Northern Alberta, Northern BC, and Southern BC. Reporting to the Project Engineering Lead, Project Engineers form a part of the project's Technical Services Group, consisting of Engineers, Drafters, Surveyors, GIS Technicians, and Drone Operators all supporting the construction of world class pipeline infrastructure. Project Engineers work for the Technical Services Group, Construction personnel and the Project Management team to develop and execute practical, safe, efficient, and novel construction work plans and processes, while ensuring all works adhere to applicable standards, specifications, and regulations. KEY RESPONSIBILITIES Understand and apply client standards and specifications, internal company standards, industry codes and standards, as well as regulatory requirements relative to the scope of SMJV's...