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77 engineering internship jobs found

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CC
Nov 01, 2025
Intern
Summer 2026 Engineering Internship
Castelion Corporation Torrance, CA, USA
About the job Summer 2026 Engineering Internship About Castelion Castelion is bringing a new approach to defense development and production: one that focuses on short, iterative design cycles, rapid testing in development, and modern commercial manufacturing strategies for production at scale. We're designing, building, and testing next-generation long-range strike weapons systems to give America and its Allies a definitive edge and deter future conflicts. Summer 2026 Engineering Internships Join us for a dynamic, hands-on experience developing next-generation missile systems across disciplines such as software, guidance/navigation/control (GNC), propulsion, power electronics, manufacturing, mechanical and structural design, avionics, and system integration. As an intern, you'll contribute directly to the design, testing, and integration of advanced defense technologies all within a fast-paced, collaborative startup environment where your work has immediate impact. Key...
CC
Oct 31, 2025
Intern
Spring 2026 Engineering Internship
Castelion Corporation Torrance, CA, USA
About the job Spring 2026 Engineering Internship About Castelion Castelion is bringing a new approach to defense development and production: one that focuses on short, iterative design cycles, rapid testing in development, and modern commercial manufacturing strategies for production at scale. Were designing, building, and testing next-generation long-range strike weapons systems to give America and its Allies a definitive edge and deter future conflicts. Spring 2026 Engineering Internship Castelion is seeking motivated and talented engineering interns for Spring 2026. This internship offers a dynamic, hands-on experience working on cutting-edge missile systems, including SW, guidance, navigation and control (GNC), propulsion, power electronics, manufacturing, mechanical/structures, avionics, system integration, etc. You will contribute directly to the development, testing, and integration of advanced defense systems, while working in a highly collaborative startup...
Ve
Dec 16, 2025
Intern
Engineering Internship
$25.00 hourly
Verdantas Irvine, CA, USA
Welcome to Verdantas, where innovation meets sustainability, and your career finds purpose! At Verdantas, we're redefining environmental consulting and sustainable engineering through our use of cutting-edge modeling and digital technology and our genuine commitment to people. Our work spans high-growth sectors like water resources, resilient land use, energy transformation, and civil infrastructure. Our commitment to excellence, across more than 90 offices, is championed by a team of over 2,000 experts, scientists, engineers, geologists, and technical specialists, embedded in a people-focused culture, prioritizing the well-being of our employees, clients, and the communities we serve. We partner with clients to deliver smart, data-driven solutions to complex environmental and infrastructure challenges. We don't just solve problems; we help shape a more sustainable future. Join a people-first culture that values your well-being, empowers your growth, and amplifies your impact. At...
TI
Jan 11, 2026
Intern
Summer 2025 Engineering Internship
TRL11, Inc. Irvine, CA, USA
TRL11 is a venture backed deep tech / defense tech startup bringing cutting-edge video technology to Aerospace applications. Based in Irvine, CA, we are seeking engineering interns for the summer of 2026. Summer internships typically cover a wide range of disciplines, including mechanical, electrical, optical, manufacturing, software, and test engineering. Our engineers contribute directly to real projects that support TRL11 product development. Join our team and play a crucial role in shaping the future of Human Space Exploration and US National Security. Job Duties: Measure and analyze camera components and system performance Assist with hardware testing, board validation and bring up, and debugging of electrical systems Inspect, assemble, and measuer mechanical components and enclosures Assist hardware engineers with mechanical and electrical CAD and drawings Write and execute test plans and present reports to engineering leadership Optimize in house production system...
Pi
Feb 19, 2026
Intern
Internship, Maintenance, Repair & Overhaul Engineering (Summer 2026)
Pivotal Palo Alto, CA, USA
Pivotal is the leader in the emerging market of electric Vertical Takeoff and Landing (eVTOL) aircraft. We design, develop, and manufacture light eVTOL aircraft and are renowned for the BlackFly aircraft the world's first light eVTOL to fly manned missions and enter the consumer market. Efficient, compact, and simple, Pivotal aircraft are designed for a wide range of consumer, public service, and defense applications. Our distinctive tilt-aircraft architecture and scalable platform have been flying for over 10 years. Last year we announced our next-generation aircraft, the Helix, which is rapidly progressing toward general release and scalable production in early 2026. Mobility is one of the most highly-valued areas of modern technology investments. This is the right company, in the right space, the right strategy, at the right time. If you are ready for adventure, we invite you to join our amazing team and grow with us. As part of our Maintenance, Repair & Overhaul (MRO)...
SM
Feb 08, 2026
Intern
Summer Internship Caltrain Infrastructure Engineering
San Mateo County Transit District Millbrae, CA, USA
Salary: $25.00 Hourly Location : Millbrae, CA Job Type: Intern Job Number: SI26-00020 Division: Rail Department: Engineering & Construction Opening Date: 02/06/2026 Closing Date: 3/15/2026 11:59 PM Pacific General Caltrain is committed to delivering a robust Internship Program giving students the opportunity to apply the skills learned in the classroom, develop professional skills, and acquire a thorough understanding of a unique public transit agency. The San Mateo County Transit District is a Special District, it is the managing agency for SamTrans, Caltrain, San Mateo County Transportation Authority, and the 101 Express Lanes Project. The Summer Intern program is designed to include real work projects in each area gives students the opportunity to consider a career in the transit industry - including tours of bus and train facilities, opportunities to learn about the multitude of career tracks within transit through information sessions, and professional...
MV
Jan 30, 2026
Full time
Engineer II, R&D
$75,937 - $99,667 yearly
MicroVention Aliso Viejo, CA, USA
Job Description Support development of medical device products with work including writing or verifying specifications; designing new products and fixtures; testing processes and equipment; and specifying raw materials to ensure the concepts and/or prototypes meet their requirements. Job duties: Develop new product concepts and products. Provide engineering design and process development. Generate intellectual property; write invention disclosures. Supervise Assemblers, Technicians, and Specialists. Largely self-directed and capable of meeting project goals with moderate supervision. Some travel required. Perform additional responsibilities as assigned. Salary Range $75,937 - $99,667 Financial compensation packages may be higher or lower than what is listed, and will ultimately depend on factors including relevant experience, internal equity, skillset, knowledge, geography, education, business needs and market demand. Qualifications Bachelor's degree in...
Pi
Jan 31, 2026
Intern
Internship, Mechanical Engineering (Summer 2026)
Pivotal Palo Alto, CA, USA
Pivotal is the leader in the emerging market of electric Vertical Takeoff and Landing (eVTOL) aircraft. We design, develop, and manufacture light eVTOL aircraft and are renowned for the BlackFly aircraft the world's first light eVTOL to fly manned missions and enter the consumer market. Efficient, compact, and simple, Pivotal aircraft are designed for a wide range of consumer, public service, and defense applications. Our distinctive tilt-aircraft architecture and scalable platform have been flying for over 10 years. Last year we announced our next-generation aircraft, the Helix, which is rapidly progressing toward general release and scalable production in early 2026. Mobility is one of the most highly-valued areas of modern technology investments. This is the right company, in the right space, the right strategy, at the right time. If you are ready for adventure, we invite you to join our amazing team and grow with us. Responsibilities Assist in mechanical design and 3D...
Pi
Jan 31, 2026
Intern
Internship, Manufacturing Engineering (Summer 2026)
Pivotal Palo Alto, CA, USA
Pivotal is the leader in the emerging market of electric Vertical Takeoff and Landing (eVTOL) aircraft. We design, develop, and manufacture light eVTOL aircraft and are renowned for the BlackFly aircraft the world's first light eVTOL to fly manned missions and enter the consumer market. Efficient, compact, and simple, Pivotal aircraft are designed for a wide range of consumer, public service, and defense applications. Our distinctive tilt-aircraft architecture and scalable platform have been flying for over 10 years. Last year we announced our next-generation aircraft, the Helix, which is rapidly progressing toward general release and scalable production in early 2026. Mobility is one of the most highly-valued areas of modern technology investments. This is the right company, in the right space, the right strategy, at the right time. If you are ready for adventure, we invite you to join our amazing team and grow with us. Responsibilities Design, develop and test new tools...
Qc
Feb 26, 2026
Full time
Associate Project Engineer
$80,000 - $90,000 yearly
Qcells San Francisco, CA, USA
Description POSITION DESCRIPTION: The Associate Project Engineer will assist in providing technical support during the project origination and development phases for community solar scale PV+ESS, PV-only, or ESS-only projects across the United States. The Associate Project Engineer will support the Development and Project Engineering teams throughout various stages of the project. This position will involve gaining experience in project-level technical due diligence, project development engineering, EPC engineering oversight, construction support, and project risk analysis.. This role is based in our Offices in Irvine or San Francisco CA. RESPONSIBILITIES Assist with technical due diligence to support the origination and development team for projects at various stages of development, both before and after project award. Help prepare conceptual layouts and electrical single-line diagrams for various opportunities. Support system energy modeling and energy...
Qc
Feb 26, 2026
Full time
Associate Project Engineer
$80,000 - $90,000 yearly
Qcells Irvine, CA, USA
Description POSITION DESCRIPTION: The Associate Project Engineer will assist in providing technical support during the project origination and development phases for community solar scale PV+ESS, PV-only, or ESS-only projects across the United States. The Associate Project Engineer will support the Development and Project Engineering teams throughout various stages of the project. This position will involve gaining experience in project-level technical due diligence, project development engineering, EPC engineering oversight, construction support, and project risk analysis.. This role is based in our Offices in Irvine or San Francisco CA. RESPONSIBILITIES Assist with technical due diligence to support the origination and development team for projects at various stages of development, both before and after project award. Help prepare conceptual layouts and electrical single-line diagrams for various opportunities. Support system energy modeling and energy...
Va
Feb 09, 2026
Full time
Build Engineer
$84,200 - $108,780 yearly
Vast Long Beach, CA, USA
At Vast, our mission is to contribute to a future where billions of people are living and thriving in space. Vast is developing next-generation space stations to ensure a continuous human presence in space for America and its allies, enabling advanced microgravity research and manufacturing, and unlocking a new space economy for government, corporate, and private customers. Using an incremental, hardware-rich and low-cost approach, Vast is rapidly developing its multi-module Haven Station. Haven Demo's 2025 success made Vast the only operational commercial space station company to fly and operate its own spacecraft. Next, Haven-1 is expected to become the world's first commercial space station when it launches, followed by additional Haven modules to enable permanent human presence by 2030. Our team is all-in, committed to executing our mission safely and on time. If you want to work with the most talented people on Earth furthering space exploration for humanity, come join us....
EU
Mar 07, 2026
Intern
Intern - Mechanical Engineer
$22.00 hourly
Emcor UK San Leandro, CA, USA
About Us We are a full-service HVAC, building automation, chiller, and retrofit contractor with a reputation for combining high-quality consulting services with customized energy solutions. Our integrated, single-source solutions include turnkey in-house capabilities with design assistance, as well as engineering applications and automated control systems. Job Summary The Mesa Internship Program is a summer rotational program for students seeking experience in energy, mechanical, building, service, sustainability, sales, or project management. Mesa Energy Systems, Inc. has an opening for an Engineering Intern. This position will provide drafting and engineering support to the Mesa Energy Systems Engineering Group. Interns will be responsible for providing drafting and engineering support to the Mesa Energy Systems Engineering Group. As assigned by management, the engineering intern's tasks may include, but are not limited to, job walks or site visits to gather information...
AV
Mar 07, 2026
Intern
Summer 2026 Mechanical Engineering Intern
AeroVironment, Inc. Simi Valley, CA, USA
Worker Type Supplemental Job Description Summary Our Summer Internship Program is meticulously designed to provide students with an immersive and dynamic experience within our industry, offering a taste of what it's like to be part of our professional team. We strive to simulate a full-time job, enabling our interns to work hands-on with cutting-edge technology, contribute to meaningful projects, build strong relationships with coworkers, and develop strategic problem-solving skills. Our program is highly selective, hosting only a handful of interns each year, ensuring personalized attention and ample opportunities to work closely with AV team members. We are hiring for various roles and locations throughout the U.S. During the interview process, we will discuss specific details regarding the team and location. Position Responsibilities Assist in the design of mechanical components and systems, including airframes, payload enclosures, ground equipment, launch...
Ra
Mar 06, 2026
Intern
Mechanical Engineering Intern
Ralliant Hollister, CA, USA
PacSci EMC, an operating company under Ralliant , is seeking a Mechanical Engineering Intern to join our team for Summer 2026. This internship provides hands-on experience partnering with design engineers, supplier partners, and manufacturing teams to ensure designs are robust, manufacturable at scale, and compliant with performance, quality, and reliability requirements. Key Responsibilities Assist in updating drawings utilizing SolidWorks. Support creation and maintenance of Bills of Materials (BOMs), part specifications, and configuration control documentation. Perform part research and assist in evaluating alternate component options. Record test results, anomalies, and support root cause and corrective action (RCCA) activities. Collaborate with Manufacturing Engineering and Supplier Quality to troubleshoot build issues. Review supplier datasheets and manufacturing guidelines to ensure alignment with design intent. Participate in Design for...
MT
Mar 06, 2026
Intern
Package Engineering Intern - Ph. D Degree
Marvell Technology, Inc. Santa Clara, CA, USA
About Marvell Marvell's semiconductor solutions are the essential building blocks of the data infrastructure that connects our world. Across enterprise, cloud and AI, and carrier architectures, our innovative technology is enabling new possibilities. At Marvell, you can affect the arc of individual lives, lift the trajectory of entire industries, and fuel the transformative potential of tomorrow. For those looking to make their mark on purposeful and enduring innovation, above and beyond fleeting trends, Marvell is a place to thrive, learn, and lead. Your Team, Your Impact Be a significant part of the engineering team that enables the Connected Digital Lifestyle. Marvell's expertise is delivering industrial leading silicon and platform solutions to datacenter processors, AI, networking and many more end applications to the world. We are the package engineering team that drives semiconductor package development from concept to mass production for all Marvell products. You...
KC
Mar 06, 2026
Full time
Civil Engineering 5+ yrs. exp (Special Projects)
$112,000 - $130,000 yearly
KPFF Consulting Engineers Long Beach, CA, USA
Company Description About Us KPFF Special Projects Division Since 1996, KPFF's Special Projects Division has been at the forefront of addressing specialized challenges in project development. With over 150+ team members in three offices strategically located in Long Beach, CA, Tacoma, WA, and Seattle, WA, our approach combines dedicated project managers, a skilled technical team, and a commitment to innovation. We offer a comprehensive range of services including civil, structural, and mechanical engineering, machinery design, construction and project management, and planning services. We specialize in the management and design of heavy civil, structural, industrial, and waterfront infrastructure projects across the United States. Our team thrives on solving unique, multi-disciplinary challenges, collaborating closely with clients such as the Ports of Long Beach, Los Angeles, Tacoma, and Seattle, as well as various municipalities and government agencies. Join us at KPFF...
Ra
Mar 03, 2026
Intern
Electronics Engineer Intern (Summer 2026)
Ralliant Hollister, CA, USA
Job Description PacSci EMC, an operating company under Ralliant , is seeking an Electronics Engineering Intern to join our team for Summer 2026 . In this role, you will support the development, documentation, and improvement of electronic hardware designs used in aerospace and defense applications, including printed circuit board assemblies (PCBAs), cable harnesses, and integrated electronic components. This internship provides hands-on experience partnering with design engineers, supplier partners, and manufacturing teams to ensure designs are robust, manufacturable at scale, and compliant with performance, quality, and reliability requirements. Key Responsibilities Assist in updating electrical schematics and PCB layout documentation in accordance with engineering change processes. Support creation and maintenance of Bills of Materials (BOMs), part specifications, and configuration control documentation. Perform part research and assist in evaluating alternate...
KC
Mar 03, 2026
Full time
Engineering - Civil Engineer 0-2 Years Experience
$80,000 - $88,000 yearly
KPFF Consulting Engineers Los Angeles, CA, USA
Company Description KPFF Consulting Engineers provides structural and civil engineering services to architects, government agencies, developers, and contractors for projects with a wide range of functions. Established in 1960, KPFF has offices in Austin, Birmingham, Boise, Chicago, Des Moines, Eugene, Irvine, Lacey, Long Beach, Los Angeles, Louisville, Nashville, Newport Beach, New York City, Portland, Sacramento, Salt Lake City, San Diego, San Francisco, Seattle, Spokane, St. Louis, Tacoma, and Washington, DC. KPFF's civil engineering staff accomplishes projects for site development, parks, and recreation facilities and the improvements to existing city streets, urban arterials, and highways. Scope of services may include site planning, environmental analysis, storm drainage studies, wetlands enhancement, permit coordination, and design of site grading, drainage, storm detention, utilities, access roads, parking facilities, and public street improvements. In addition to...
ME
Mar 01, 2026
Intern
Intern - Engineer
$22.00 hourly
Mesa Energy Systems, Inc. West Sacramento, CA, USA
About Us We are a full-service HVAC, building automation, chiller, and retrofit contractor with a reputation for combining high-quality consulting services with customized energy solutions. Our integrated, single-source solutions include turnkey in-house capabilities with design assistance, as well as engineering applications and automated control systems. Job Summary The Mesa Internship Program is a summer rotational program for students seeking experience in energy, mechanical, building, service, sustainability, sales, or project management. Mesa Energy Systems, Inc. has an opening for an Engineering Intern. This position will provide drafting and engineering support to the Mesa Energy Systems Engineering Group. Interns will be responsible for providing drafting and engineering support to the Mesa Energy Systems Engineering Group. As assigned by management, the engineering intern's tasks may include, but are not limited to, job walks or site visits to gather information...
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