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150 senior staff mechanical engineer jobs found

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Onsite senior staff mechanical engineer California
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NM
Dec 11, 2025
Full time
Senior/Staff Mechanical Engineer, Instruments and Composites
Neptune Medical Burlingame, CA, USA
Neptune Medical, is an innovative, venture capital funded medical device startup headquartered in Burlingame, CA. We have already commercialized novel medical devices using our technology. Now the team at Neptune is building something truly unique: a fully flexible medical robot that enables doctors to reach deep into human anatomy. Triton Robotic Endoscopy will disrupt flexible endoscopy and set a new standard in outcomes for decades to come. TITLE: Senior/Staff Mechanical Engineer, Instruments and Composites POSITION SUMMARY: The Staff Mechanical Engineer, Instruments and Composites will have a central role in further invention of our core rigidizing technology. You will champion your concepts through definition, ideation, engineering and clinically relevant assessments and, eventually, to market. This is a chance to work with cutting edge composite rigidization technology and make it even better. The ideal candidate will act with passion and intensity in a medical...
FS
Aug 25, 2025
Full time
Senior / Staff Mechanical Engineer - R&D
$135,000 - $165,000 yearly
Fulfil Solutions Mountain View, CA, USA
Fulfil is a well-funded, rapidly growing, and inclusive company that has developed a custom automation robotics system to pick and pack online orders of groceries and other consumables, bringing delight and a value proposition to consumers that doesn't exist today. Additionally, its unique design and technology is purpose-built to solve today's environmental problems in the world's food supply chain. Founded by a team with previous startup success and backed by top-tier VCs, we are committed to reducing waste, improving environmental impact, and reducing emissions with truly new technology. Our first commercial product launch went live in 2024, and we have more in queue for 2025. We can't do it alone -- we're seeking curious, capable, passionate team members motivated by the opportunity to create lasting impact on the world through their work. This role offers ample growth opportunities while working side-by-side with an impassioned, multi-disciplinary team spanning mechanical...
HA
Sep 29, 2025
Full time
Senior/Staff Battery Mechanical Design Engineer
Heart Aerospace Los Angeles, CA, USA
At Heart Aerospace we develop the ES-30, a regional hybrid-electric airplane with a capacity of 30 passengers, an electric zero-emission range of 200 km and an extended hybrid range of 400 km. Heart is targeting type certification of the ES-30 by the end of the decade. Your mission Heart Aerospace is seeking a highly motivated and experienced Battery Design Engineer to join our growing and dynamic team. In this role, you will be a key contributor to the design, development, testing, and optimization of advanced battery systems specifically designed for the demanding requirements of electric aerospace applications. You will leverage your deep understanding of design methodologies and approaches to drive innovation and ensure the highest levels of performance, safety and reliability. You will translate system-level requirements into robust, certifiable mechanical designs, playing a critical role in electrifying the future of flight. Key responsibilities include but are not...
BR
Sep 15, 2025
Full time
Staff/Senior Mechanical Engineer
Bedrock Robotics San Francisco, CA, USA
The Role Bedrock is bringing autonomy to the construction industry! We're a group of veterans from the autonomous vehicle industry who are passionate about bringing the benefits of automation to areas in the construction industry currently underserved by the market. We are seeking a creative and detail-oriented mechanical engineer to join our dynamic team. The successful candidate will be responsible for the entire product lifecycle, from research and design to implementation, manufacturing and integration. You will work on a variety of projects, applying your knowledge of mechanics, thermodynamics and material science to solve complex problems and develop innovative solutions. What you'll be doing: Design and develop mechanical components, systems, and products using computer-aided design (CAD) software such as SolidWorks, Fusion360, CATIA, or similar programs. Develop and validate mechanical structures for an autonomous sensor and compute suite, ensuring robustness and...
AE
Aug 25, 2025
Full time
Mechanical Engineer, Senior or Staff
$129,000 yearly
Antora Energy San Jose, CA, USA
Antora builds and deploys thermal batteries to power always-on industrial operations with low-cost energy. Factory-built in the United States, Antora's modular thermal batteries deliver reliable heat and power, enabling industrial facilities of any size to decarbonize predictably and profitably. Antora is electrifying global industry while supporting U.S. manufacturing jobs, lowering costs for energy consumers, and enhancing the competitiveness of American industry. We are growing our company with people who put team and mission first, value connection through laughter and joy, and build with humility and openness. We are committed to continue building a diverse, passionate, and creative team dedicated to a future where every industrial facility, everywhere on earth, is powered by abundant, clean, low-cost energy. Position Summary You will collaborate with other teams to scope, define, design, model, prototype, validate, and iterate the mechanical design of Antora's thermal...
HD
Dec 27, 2025
Full time
Senior Water/Wastewater Engineer
HDR Irvine, CA, USA
At HDR, our employee-owners are fully engaged in creating a welcoming environment where each of us is valued and respected, a place where everyone is empowered to bring their authentic selves and novel ideas to work every day. As we work to weave diversity, equity, and inclusion into our work and foster a sense of belonging throughout the company and within our communities, we constantly ask ourselves: What is our impact on the world? Watch Our Story:' https://www.hdrinc.com/our-story' Each and every role throughout our organization makes a difference in our ability to change the world for the better. Read further to learn how you could help make great things possible not only in your community, but around the world. In the role of Senior Water/Wastewater Engineer, we'll count on you to: Serve as a technical expert water/wastewater planning, design, and construction projects Prepare and guide junior staff in the preparation of design plans for major mechanical engineering...
SH
Dec 26, 2025
Full time
Senior Mechanical Engineer
$67,575 - $122,649 yearly
Syska Hennessy Group San Diego, CA, USA
Watch your work come to life in landmark projects around the world when you partner with Syska Hennessy Group. As a global leader in consulting, engineering, and commissioning services, we specialize in MEP, information and communication technology, architectural lighting, vertical transportation, and commissioning. We are seeking a Senior Mechanical Engineer to join our team in San Diego . Your experience working in a consulting firm on healthcare projects will ensure your success in this role. Working from either our Los Angeles or San Diego offices, you will contribute to the design of major projects from both inpatient and outpatient healthcare engineering design across all phases from around the world. You will be part of a large team of over 100 engineers nationally with a wealth of experience, so this is a great opportunity to grow your career. Our dynamic work environment provides the optimal setting to take your career to the next level. From our supportive culture,...
Ma
Dec 26, 2025
Full time
Electrical Engineer - Mid Level
Moffatt and Nichol San Diego, CA, USA
Moffatt & Nichol is actively searching for an Electrical Engineer with a specialty in power systems to join our Mechanical, Electrical, and Instrumentation (MEI) team in San Diego. The successful Electrical Engineer will work on both large and small projects locally, domestically and internationally. Projects include: ports, cargo terminals, shipyards, large and small marinas, port authority, and municipal. We are looking forward to mentoring and developing your skills in the growing horizontal / infrastructure market! You will work with an international MEI team and Senior Engineers around the company through our intraoffice staff utilization program. Thus, growing your skills beyond the state and country for which you work. You will support projects both on the job site as well as in the office. About Moffatt & Nichol: Moffatt & Nichol is a leading U.S.-based global infrastructure advisor specializing in the planning and design of facilities that shape and serve...
GC
Dec 26, 2025
Full time
Senior / Project Civil Engineer
$100,225 yearly
Geosyntec Consultants, Inc. Los Angeles, CA, USA
Overview Do you want to build an impactful career to change the world for the better? Geosyntec has an exciting opportunity for a Senior/Project Civil Engineer in Los Angeles, Costa Mesa, or Long Beach, California. In this role, you will work on complex projects involving innovative urban stormwater and natural surface water management systems, green infrastructure and Low Impact Development design and planning studies, large-scale stormwater capture systems, flood mitigation and hydrologic/hydraulic analysis than can include dam breach studies, floodplain mapping, stream restoration, surface water, watershed, and stormwater runoff monitoring and modeling, industrial and construction site NPDES permitting support and inspections, and Clean Water Act regulatory support. Familiarity and/or work experience in geotechnical engineering and mechanical/process engineering also applicable. Geosyntec is an innovative, international engineering and consulting firm serving private and...
Co
Dec 21, 2025
Full time
Senior Facilities Engineer
Cordis Irvine, CA, USA
Overview Selution, in partnership with Cordis, specializes in the development of ground-breaking technology and commercialization of advanced drug device combination products for the treatment of coronary and peripheral artery disease. Our mission is to revolutionize healthcare by creating next-generation solutions that address unmet and critical medical needs. Responsibilities The Senior Facilities Engineer leads and supports facility engineering projects with a focus on construction, infrastructure reliability, energy efficiency, and compliance with regulatory standards. This role involves managing complex engineering assignments, evaluating technical solutions, and ensuring facility systems operate effectively to support business needs. Key Responsibilities Provide engineering expertise in the design, operation, and maintenance of building systems (HVAC, ISO 8 Cleanrooms, compressed air/CDA, nitrogen generation system, electrical, plumbing, controls, and...
Ca
Dec 17, 2025
Full time
Mechanical Engineer
Caltech Pasadena, CA, USA
Caltech is a world-renowned science and engineering institute that marshals some of the world's brightest minds and most innovative tools to address fundamental scientific questions. We thrive on finding and cultivating talented people who are passionate about what they do. Join us and be a part of the diverse Caltech community. About the Caltech Facilities Planning, Design & Construction Department The Planning, Design and Construction team takes great pride in serving Caltech by delivering the built environment required to support the needs of the institute. Our team of seasoned industry professionals sincerely values working closely with the campus to define project requirements and design and deliver successful projects. Our roles cover the project life cycle, ranging from in-house planning and design, space management, project and construction management, construction inspection to specialized procurement expertise. Our goal is to provide Caltech with world-class...
Di
Dec 15, 2025
Full time
Manufacturing Engineer (All Levels)
$91,800 - $126,200 yearly
Divergent Torrance, CA, USA
Divergent is a technology company that has architected, invented, built, and commercialized an end-to-end factory system called the Divergent Adaptive Production System (DAPS) that comprehensively uses machine learning to optimally engineer, additively manufacture, and flexibly assemble complex integrated vehicle structures and subsystems. Products created using DAPS are superior in performance, lower in cost, rapidly customizable to meet mission and customer-specific requirements, faster to market, and scalable on demand to high volume production. Divergent is a qualified Tier 1 supplier to global automotive OEMs, and Divergent is now expanding to support mission critical needs in the Aerospace and Defense sector. Join us to be a part of this transformative journey, where your impact will shape the future of technology and production. Purpose The Manufacturing Engineer bridges design and production, optimizing designs for manufacturability while enhancing processes to support...
SU
Dec 11, 2025
Full time
Instrument & Controls Engineer, Process Solut
Sulzer USA, Inc. Colton, CA, USA
Are you an interested in Instrumentation & Controls and want to work for an industry leading, employee focused company? Do you enjoy the design/build process and managing multiple projects at once? Sulzer EMS Controls Group is looking for an Engineer to join our growing team! Sulzer is a growing $4+ bil systems integration company and panel fabricator . We design, manufacture, and integrate electrical and process control systems for water, wastewater, oil & gas, and renewable energy applications. We are proud of our culture that focuses on quality, technical excellence, and giving back to our communities. Job Summary: Under minimal supervision, design, plan, and coordinate the development and fabrication of specific products. Assist in the design of new products up to full production. This includes specification reviews, development timelines and reports, design reviews, simple mechanical designs, documentation packages, preproduction builds and transfers to...
HG
Dec 10, 2025
Full time
Senior Mechanical Engineer
Harris Group Thousand Oaks, CA, USA
Harris Group thrives on providing expert engineering for some of today's most complex challenges. We are creative in our approach by delivering multi-discipline services across a wide range of project types. Our successes are directly related to high-quality collaboration, across all offices, expertise, and backgrounds. Harris Group is a 100% Employee-Owned company with our eyes focused on the people in the company, the clients we serve, and the communities in which we live. Harris Group is looking for a Senior Mechanical Engineer to be based in our Thousand Oaks, CA office. This role is responsible for providing professional engineering expertise to our projects that seek to positively impact both the community and the environment. The incumbent will work on innovative designs and see diverse projects through development, detailed design, commissioning, and construction support. What We Can Offer You Variety of project types: Life Science, Industrial Manufacturing, Biofuels,...
HG
Dec 10, 2025
Full time
Senior Mechanical Engineer
Harris Group Lafayette, CA, USA
Harris Group thrives on providing expert engineering for some of today's most complex challenges. We are creative in our approach by delivering multi-discipline services across a wide range of project types. Our successes are directly related to high-quality collaboration, across all offices, expertise, and backgrounds. Harris Group is a 100% Employee-Owned company with our eyes focused on the people in the company, the clients we serve, and the communities in which we live. Harris Group is looking for a Senior Mechanical Engineer to be based in our Lafayette, CA office. This role is responsible for providing professional engineering expertise to our projects that seek to positively impact both the community and the environment. The incumbent will work on innovative designs and see diverse projects through development, detailed design, commissioning, and construction support. What We Can Offer You Variety of project types: Life Science, Industrial Manufacturing, Biofuels,...
AW
Dec 07, 2025
Full time
Senior Project Engineer
$100,000 - $130,000 yearly
Applied Water Managemen CA, USA
Who Are We: At Natural Systems Utilities, we are dedicated to providing sustainable, innovative solutions in the water and wastewater services industry. Specializing in the design, operation, and maintenance of utility systems, we prioritize environmental responsibility, reliability, and customer satisfaction. Join our team and be part of an organization that values teamwork, integrity, and a commitment to a sustainable future. Role Summary: NSU is seeking a skilled and experienced Senior Project Engineer to join our dynamic Engineering team. The Senior Project Engineer will carry out engineering tasks and activities on a variety of water and wastewater projects either independently or under limited direction by performing duties personally or guiding other team members. The ideal candidate will have 5-10 years of relevant experience in wastewater design, particularly in designing pump stations and treatment plants. The candidate should be well-versed in preparing design...
Am
Dec 06, 2025
Full time
Senior Staff Engineer
$100,000 - $140,000 yearly
Ametek Goleta, CA, USA
The Senior Staff Engineer will lead product engineering and continuous improvement efforts, guiding new product designs for high-performance liquid cooling systems. Responsibilities include developing 3D models, drawing packages, and BOM releases for complex mechanical parts and assemblies using SolidWorks. The role requires rigorous application of design, drafting, and manufacturing techniques. The Senior Staff Engineer will also implement engineering changes and process improvements. The ideal candidate must thrive in an entrepreneurial environment and manage ambiguity and competing priorities effectively. Key Responsibilities Lead and coordinate technical aspects of projects. Design and draft detailed blueprints, plans, and schematics. Analyze and interpret data and reports. Develop and ensure project specifications and requirements are met. Collaborate with program managers and engineers for successful project completion. Provide technical guidance and mentorship to...
VI
Dec 05, 2025
Full time
Senior Mechanical Design Engineer
Viasat, Inc. Carlsbad, CA, USA
About us One team. Global challenges. Infinite opportunities. At Viasat, we're on a mission to deliver connections with the capacity to change the world. For more than 35 years, Viasat has helped shape how consumers, businesses, governments and militaries around the globe communicate. We're looking for people who think big, act fearlessly, and create an inclusive environment that drives positive impact to join our team. What you'll do Viasat is looking for a dynamic Senior Mechanical Design Engineer to join our growing team. In this exciting role, you will be responsible for the design, documentation and testing of electronics hardware. The day-to-day The day-to-day work encompasses electronics packaging, cabling, thermal analysis down to the component junction level, structural analysis, and qualification testing. You will ensure the design has the proper parts, materials and interface design so each module operates as intended within its environmental and performance...
ER
Dec 05, 2025
Full time
Senior Manufacturing Engineer, Tooling
Energy Recovery San Leandro, CA, USA
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...
SN
Dec 03, 2025
Full time
MEP - Electrical Senior Project Engineer
SGA|NW, a GF design company Calabasas, CA, USA
Job Title: MEP ElectricalSenior Project Engineer Department: Design MEP West Coast - Electrical Engineering Division: SCEG, a GF company Reports to: Managing Director/Director FLSA Status: Exempt California Salary Range: $100,000 - $150,000, depending on experience GENERAL SUMMARY The Electrical Senior Project Engineer is a licensed professional responsible for leading and overseeing the design and engineering of electrical systems for commercial, retail, and institutional building projects. Reporting to the Managing Director or Director, the Senior Project Engineer serves as a technical lead and subject matter expert, ensuring that all work meets applicable codes, design standards, and client expectations. This role requires expert-level technical capabilities, strategic project insight, sound engineering judgment, and the ability to coordinate multidisciplinary teams and consultants across multiple project phases. The Senior Project Engineer routinely serves as...
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