35 lead mechanical project engineer jobs found

Salary : $112,257.60 - $136,468.80 Annually Location : Sacramento, CA Job Type: FULL TIME (NON-EXEMPT) Job Number: 3956 - 2026 Department: SacSewer Opening Date: 03/27/2026 Closing Date: 4/28/2026 5:00 PM Pacific Position Sacramento Area Sewer District (SacSewer) is currently accepting applications for an Assistant Engineer position. Applications will be screened after the following filing deadlines at 5PM: 4/13/26, 4/28/26 The Assistant Engineer is the journey-level class in the engineering series. Under general supervision, incumbents are expected to be proficient in performing difficult assignments in routine planning, design, technical investigations, and field/construction projects. This position holds no supervisory responsibility but may provide technical direction to paraprofessional engineering personnel or Engineer/Architect Student Interns. An Assistant Engineer may serve as a resident engineer on smaller, less complex field/construction...

Company Overview Kairos Power is a new nuclear energy technology and engineering company whose mission is to enable the world's transition to clean energy, with the ultimate goal to dramatically improve people's quality of life while protecting the environment. This goal will be accomplished through the commercialization of the fluoride-salt-cooled, high-temperature reactor (FHR) that can be deployed with robust safety, affordable costs, and flexible operation to accommodate the expansion of variable renewables. Job Summary Kairos Power is seeking a highly motivated and experienced BIM Senior Engineer I, Civil Structures with a strong background in Revit to lead the implementation and management of Building Information Modeling (BIM) for our diverse civil structures projects. The ideal candidate will be an expert in leveraging Revit for structural modeling while possessing a comprehensive understanding of the broader civil infrastructure digital toolkit. You will be...

About the Company General Matter is enriching uranium in America. Our mission is to restore our country's ability to make nuclear fuel. Our fuel will help power AI, manufacturing, and other critical industries. It will power our next generation of reactors. Ultimately, it will power our national ambitions. We were incubated by Founders Fund, like Anduril and Palantir before us, and we are backed by top tier investors. Our lean, world-class team of engineers and operators is applying a first-principles approach to solving the problem of nuclear fuel production. We are a mission-driven company with a culture of urgency, accountability and transparency. About This Role As a Civil Engineer, you will play a pivotal role in executing a state-of-the-art enrichment facility from concept through commissioning. This role will ensure that our enrichment facilities meet safety, efficiency and environmental standards. You will have the opportunity to work on a greenfield project...

Company Overview Kairos Power is a new nuclear energy technology and engineering company whose mission is to enable the world's transition to clean energy, with the ultimate goal to dramatically improve people's quality of life while protecting the environment. This goal will be accomplished through the commercialization of the fluoride-salt-cooled, high-temperature reactor (FHR) that can be deployed with robust safety, affordable costs, and flexible operation to accommodate the expansion of variable renewables. Job Summary The Reactor Vessel Auxiliary Systems team is seeking a highly motivated Senior Engineer to join the growing Reactor Systems department where you will have the opportunity to work directly on the design, integration, and assembly of the structures, systems, and components (SSCs) within the reactor cavity in a first-of-a-kind FHR. In this role, you will manage and coordinate the detailed layout of reactor cavity components including routing of fuel, salt,...

Company Overview Kairos Power is a new nuclear energy technology and engineering company whose mission is to enable the world's transition to clean energy, with the ultimate goal to dramatically improve people's quality of life while protecting the environment. This goal will be accomplished through the commercialization of the fluoride-salt-cooled, high-temperature reactor (FHR) that can be deployed with robust safety, affordable costs, and flexible operation to accommodate the expansion of variable renewables. Job Summary Kairos Power is seeking a Senior Civil Structural Engineer to support the structural design of the reactor building for its Generation IV Nuclear Power Plant, including scaled prototypes and test facilities. As part of the Design Phase Interface Team, this role ensures seamless coordination of structural design across disciplines through technical guidance, clash resolution, stakeholder collaboration, and advanced structural analysis. The ideal candidate...

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 Principal Mechanical Engineer We're looking for a Principal Mechanical Engineer to join our R&D and equipment design team to help build the next generation of thin-film deposition technology. The...

About the Company General Matter is enriching uranium in America. Our mission is to restore our country's ability to make nuclear fuel. Our fuel will help power AI, manufacturing, and other critical industries. It will power our next generation of reactors. Ultimately, it will power our national ambitions. We were incubated by Founders Fund, like Anduril and Palantir before us, and we are backed by top tier investors. Our lean, world-class team of engineers and operators is applying a first-principles approach to solving the problem of nuclear fuel production. We are a mission-driven company with a culture of urgency, accountability and transparency. About This Role As a Structural Design Engineer, you will play a pivotal role in executing a state-of-the-art enrichment facility from concept through commissioning. You will design, analyze, and ensure designs meet regulatory requirements for safety, performance, and compliance. You will have the opportunity to work on a...

GFT is seeking a talented Principal Civil / Structural Engineer to join our team in our Roseville, CA. This role follows a hybrid work model, requiring regular attendance at our Roseville office. Our specialists have the in-depth knowledge to excel on the most challenging geotechnical assignments. We provide innovative solutions for foundations; underground construction; earth structures, including dams and levees; groundwater resources; and marginal building sites. Our geotechnical engineers and geologists also specialize in landslides, sinkholes, mine subsidence, seepage, expansive soils, and seismic activity. We have completed more than 1,000 subsurface and geophysical projects across the U.S. - from small-scale projects to large, complex dams, highways, bridges, and underground structures. What you'll be challenged to do: In this role, you will support critical infrastructure design and construction across the California foothills and mountains. Our projects include...

Description Title: Civil Engineer - Level 2 Department: Engineering Center Location: Irvine, CA Super visor: Manager of Civil / Structural Engineering FLSA Status: Exempt Position Status: Permanent, Full -Time Work Status (Remote/Hybrid/In-Office): Remote CIVIL ENGINEER - LEVEL 2 Hanwha Qcells USA Corp (Qcells USA), headquartered in Irvine, CA, specializes in providing utility-scale modules, solar photovoltaic (PV), and battery energy storage systems (BESS) project development, along with Engineering, Procurement, and Construction (EPC) services for solar and BESS projects nationwide. Qcells USA delivers comprehensive turnkey solutions encompassing the entire utility-scale project lifecycle. By choosing Qcells USA for turnkey solutions, customers can reduce uncertainty and risk, leading to enhanced investment returns and contributing to a more sustainable future. Qcells USA's complete turnkey solutions seamlessly integrate the expertise of our Development,...

Description Title: Electrical Engineer Level 3 Department: Engineering Location: Irvine, CA Supervisor: Manager of Electrical Engineering FLSA Status: Exempt Position Status: Permanent, Full-Time Work Status: Hybrid ELECTRICAL ENGINEER LEVEL 3 Hanwha Qcells USA Corp ( Qcells USA), headquartered in Irvine, CA, specializes in providing utility-scale modules, solar photovoltaic (PV), and battery energy storage systems (BESS) project development, along with Engineering, Procurement, and Construction (EPC) services for solar and BESS projects nationwide. Qcells USA delivers comprehensive turnkey solutions encompassing the entire utility-scale project lifecycle. By choosing Qcells USA for turnkey solutions, customers can reduce uncertainty and risk, leading to enhanced investment returns and contributing to a more sustainable future. Qcells USA's complete turnkey solutions seamlessly integrate the expertise of our Module, Development, and EPC teams, while ensuring...

About Pacific Fusion Pacific Fusion was founded in 2023 with the mission to power the world with abundant, affordable, clean energy. We are rapidly designing and building a pulser-driven inertial fusion system to achieve net facility gain (more fusion energy output than stored energy input). In parallel, we are developing the key components required to build affordable fusion systems. Our plans are ambitious. We have raised over $900M so far from incredible investors, resourcing us to deliver on these plans. We are bringing together the best scientists, engineers, and operators from the fusion community, hard tech industry, and other sectors. We are united by a shared sense of urgency to provide clean power for the world, particularly managing climate change while meeting growing global energy demand. You can read more about us in this letter from our founders. Why This Role Matters Pacific Fusion is seeking an exceptional Senior Mechanical Engineer - Fluid Systems to...

Description Title: S enior Project Engineering Manager Department: Engineering Center Location: Irvine, CA Supervisor: Director of Project Engineering FLSA Status: Exempt Position Status: Permanent, Full -Time Work Status (Hybrid/In-Office): Remote S ENIOR PROJECT ENGINEERING MANAGER Hanwha Qcells USA Corp (Qcells USA), headquartered in Irvine, CA, specializes in providing utility-scale modules, solar photovoltaic (PV), and battery energy storage systems (BESS) project development, along with Engineering, Procurement, and Construction (EPC) services for solar and BESS projects nationwide. Qcells USA delivers comprehensive turnkey solutions encompassing the entire utility-scale project lifecycle. By choosing Qcells USA for turnkey solutions, customers can reduce uncertainty and risk, leading to enhanced investment returns and contributing to a more sustainable future. Qcells USA's complete turnkey solutions seamlessly integrate the expertise of our Module,...

Systems Engineer is responsible for leading project development, technical support for sales, and system optimization for assigned BoxPower microgrid opportunities. The role may include owning specific feasibility studies and developing the core technical deliverables that inform customer proposals and project direction, including system sizing, system architecture and platforms, conceptual layouts, single-line diagrams, PV production modeling, and Homer-based microgrid modeling. This position works closely with Sales, Estimating, Systems Engineering, Product Engineering, Project Engineering, and external partners to evaluate project viability, shape system concepts, and support successful proposal execution. Other work may include site visits and continuous improvement of tools, templates, and internal processes. This role reports to the Solutions and Estimation Manager. This role has no direct reports. This role is hybrid or remote to BoxPower HQ in Grass Valley, CA. Key...

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...

Career Area: Engineering Job Description: Your Work Shapes the World at Caterpillar Inc. When you join Caterpillar, you're joining a global team who cares not just about the work we do - but also about each other. We are the makers, problem solvers, and future world builders who are creating stronger, more sustainable communities. We don't just talk about progress and innovation here - we make it happen, with our customers, where we work and live. Together, we are building a better world, so we can all enjoy living in it. Job Summary: Solar Turbines Inc. has an opportunity within the Custom Solutions Engineering group for a motivated, creative, high performing Mechanical Design Engineer to join an elite team and work in a fast-paced project execution environment. Job Accountabilities: The successful candidate will be responsible for creating the Creo design of the turbo machinery package systems and components in accordance with the project ACS (Application Check...

Career Area: Engineering Job Description: Your Work Shapes the World at Caterpillar Inc. When you join Caterpillar, you're joining a global team who cares not just about the work we do - but also about each other. We are the makers, problem solvers, and future world builders who are creating stronger, more sustainable communities. We don't just talk about progress and innovation here - we make it happen, with our customers, where we work and live. Together, we are building a better world, so we can all enjoy living in it. Job Description This position will serve as an Electrical Engineer within our Facility Engineering group at the Harbor Drive (downtown) facility of Solar Turbines. This position manages electrical projects related to Harbor Drive facility improvements, modifications, or surveys. This includes preparing all estimates related to engineering drawings and specifications for work that is part of a major project or a total project of moderate scope. This...

Description Title: Senior HV Engineer - Level 4 Department: Engineering Center Location: Irvine, CA Supervisor: Director of SME FLSA Status: Exempt Position Status: Permanent, Full -Time Work Status (Remote/Hybrid/In-Office): Remote SENIOR HV ENGINEER - LEVEL 4 Hanwha Qcells USA Corp (Qcells USA), headquartered in Irvine, CA, specializes in providing utility-scale modules, solar photovoltaic (PV), and battery energy storage systems (BESS) project development, along with Engineering, Procurement, and Construction (EPC) services for solar and BESS projects nationwide. Qcells USA delivers comprehensive turnkey solutions encompassing the entire utility-scale project lifecycle. By choosing Qcells USA for turnkey solutions, customers can reduce uncertainty and risk, leading to enhanced investment returns and contributing to a more sustainable future. Qcells USA's complete turnkey solutions seamlessly integrate the expertise of our Module, Development, and EPC...

About Giga At Giga , we develop, build, and operate AI energy infrastructure that powers the modern world. And we'reon a mission to fix the broken energy infrastructure experience - permanently. Our vertically integrated approach stacks site origination and development, infrastructure manufacturing, and power market participation under one operating system. Founded in Texas, Giga partners with AI hyperscalers, data center operators and other energy infrastructure teams to deliver projects faster. Why Join Us The Pace: You will own projects moving faster than anywhere else in the industry. The Impact: You are the person who turns "concepts" into "contracts" and "permits." The Team: Work with a world-class group of engineers and builders defining the future of AI infrastructure. Why Join Us The Pace: You will manage projects moving faster than anywhere else in the industry. The Impact: You are the person who turns "concepts" into "contracts" and...

About Pacific Fusion Pacific Fusion was founded in 2023 with the mission to power the world with abundant, affordable, clean energy. We are rapidly designing and building a pulsed magnetic fusion system to achieve net facility gain (more fusion energy output than stored energy input). In parallel, we are developing the key components required to build affordable fusion systems. Our plans are ambitious. We have raised over $900M so far from incredible investors, resourcing us to deliver on these plans. We are bringing together the best scientists, engineers, and operators from the fusion community, hard tech industry, and other sectors. We are united by a shared sense of urgency to provide clean power for the world, particularly managing climate change while meeting growing global energy demand. You can read more about us in this letter from our founders. Why This Role Matters Pacific Fusion is seeking an exceptional Senior Mechanical Engineer to help create the path to...

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 to thrive in a rapidly digitizing, energy-intensive world. From revolutionizing power for AI-driven data centers to ensuring resilience for hospitals, electric grids, manufacturing facilities, and utilities, our solid oxide fuel cell (SOFC) and solid oxide electrolyzer (SOEC) technologies are redefining what's possible by delivering energy abundance for all. With more than 30,000 fuel cell modules deployed worldwide, we are the trusted partner for Fortune 100 companies and innovators alike. Our cutting-edge solutions enable unparalleled "time-to-power" capabilities, reliability, and sustainability, ensuring our customers remain ahead in a world where soaring energy demand and intensifying energy scarcity are...