488 engineering interns jobs found

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...

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...

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...

California Water Service Job Description: The Engineering Intern is responsible for assisting with projects and tasks across the State of California, within the assigned Engineering department. The position will provide support of projects, regulatory requirements, and Company goals, and may work on small projects, as well as large projects under the guidance of a project manager within the Engineering Department. The position will last for approximately 1 year, with the expectation that the intern would work full time during the summer and part time during the school year. The intern will work with their manager to establish a schedule that will allow them to complete their work while still attending their university classes. INTERNSHIP REQUIREMENTS: One-year commitment from June 1, 2026, through May 28, 2027 Summer - full time (32-40 hours per week) Fall/Spring/Winter - based on school schedule 100% on-site, no remote option Eligibility for employment in the US is...

Job Title Bridge Engineering Intern Location Walnut Creek - Walnut Creek, CA 94596 US (Primary) Category Engineering: Structures Salary Grade $21.00 - $25.00 Full Time/Part Time Internship Posting Details Mark Thomas is hiring entry-level Bridge Engineering Interns in Walnut Creek! This 10-week summer program gives current undergraduate and graduate students the chance to assist staff with entry-level tasks. Tasks will vary depending on the assignment and department. These tasks may include contributing to the preparation of plans, drawings, exhibits, estimates, reports, gathering data, and/or performing technical calculations. Work activities may also include routine field tasks. Summer interns can work up to 40 hours per week, and there's an option to continue part-time (15-25 hours/week) during the school year, making this an excellent way to keep learning and growing while completing your studies. RESPONSIBILITIES • Provides QA/QC support by following the...

Job Title Bridge Engineering Intern Location Roseville - Roseville, CA 95678 US Sacramento - Sacramento, CA 95825 US (Primary) Category Engineering: Structures Salary Grade $21.00 - $25.00 Full Time/Part Time Internship Posting Details Mark Thomas is hiring entry-level Bridge Engineering Interns in Sacramento/Roseville! This 10-week summer program gives current undergraduate and graduate students the chance to assist staff with entry-level tasks. Tasks will vary depending on the assignment and department. These tasks may include contributing to the preparation of plans, drawings, exhibits, estimates, reports, gathering data, and/or performing technical calculations. Work activities may also include routine field tasks. Summer interns can work up to 40 hours per week, and there's an option to continue part-time (15-25 hours/week) during the school year, making this an excellent way to keep learning and growing while completing your studies. RESPONSIBILITIES • Provides...

Job Title Bridge Engineering Intern Location Irvine - Irvine, CA 92606 US (Primary) Category Engineering: Structures Salary Grade $21.00 - $25.00 Full Time/Part Time Internship Posting Details Mark Thomas is hiring entry-level Bridge Engineering Interns in Irvine! This 10-week summer program gives current undergraduate and graduate students the chance to assist staff with entry-level tasks. Tasks will vary depending on the assignment and department. These tasks may include contributing to the preparation of plans, drawings, exhibits, estimates, reports, gathering data, and/or performing technical calculations. Work activities may also include routine field tasks. Summer interns can work up to 40 hours per week, and there's an option to continue part-time (15-25 hours/week) during the school year, making this an excellent way to keep learning and growing while completing your studies. RESPONSIBILITIES • Provides QA/QC support by following the appropriate procedures as...

About Atomic Semi Atomic Semi is building a small, fast semiconductor fab. It's already possible to build this with today's technology and a few simplifications. We'll build the tools ourselves so we can quickly iterate and improve. We're building a small team of exceptional, hands-on engineers to make this happen. Mechanical, electrical, hardware, computer, and process. We'll own the stack from atoms to architecture. Our team is optimistic about the future and we want to continue pushing the limits of technology. Smaller is better. Faster is better. Building it ourselves is better. We believe our team and lab can build anything. We've set up 3D printers, a wide array of microscopes, e-beam writers, general fabrication equipment - and whatever is missing, we'll just invent along the way. Atomic was founded by Sam Zeloof and Jim Keller. Sam is best known for making chips in his garage, and Jim has been a leader in the semiconductor industry for the past 40 years. About the...

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...

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 offering exciting opportunities for students to join various Mechanical Engineering teams for Summer 2026! Contributions on each team will be instrumental to Kairos Power's mission on delivering an innovative technology that will impact climate change. Areas with potential internship opportunities: Engineering Test Manufacturing Engineering Mechanical Design Reliability Engineering Systems Integration Engineering Quality...

Company Description Join us and make YOUR mark on the World! Lawrence Livermore National Laboratory (LLNL) has turned bold ideas into world-changing impact advancing science and technology to strengthen U.S. security and promote global stability. Our mission spans four critical national security areas nuclear deterrence, threat preparedness, energy security, and multi-domain defense empowering teams to take on the toughest challenges of today and tomorrow. With a culture built on innovation and operational excellence, LLNL is a place where your expertise can make a real impact. Job Description We have an internship opening for an undergraduate student who is majoring in architecture or engineering (civil, structural, electrical, or mechanical). This internship is designed to provide valuable professional experience while contributing to impactful, real-world projects. Interns will work closely with architects and engineers on capital infrastructure projects within LLNL's...

Salary: $17.50 - $23.77 Hourly Location : City of San Luis Obispo, CA Job Type: Paid Internship Department: CIP Project Engineering Opening Date: 02/18/2026 Closing Date: Continuous FLSA: Non-Exempt JOB DESCRIPTION The City of San Luis Obispo is looking for a CIP Engineering Intern II, III, or IV. CIP interns assist staff with the implementation of projects funded by City dollars - road paving, water and sewer line replacement, creek bank protection and City facility improvements. This position includes design in AutoCAD, construction inspection, review of signs/curb ramps and sidewalk as well as plan review. With projects spanning across the City, this role involves a mix of field and office work. The expected work hours are approximately 10-15 hours per week during the school year and 40 hours per week during the summer. This is a continuous recruitment; however, the posting can close at any time without notice, therefore, prompt application is...

ABOUT ROCKET LAB Rocket Lab is an end-to-end space company delivering responsive launch services, complete spacecraft design and manufacturing, payloads, satellite components, and more - all with the goal of opening access space. The rockets and satellites we build, and launch enable some of the most ambitious and vital space missions globally, supporting scientific exploration, Earth observation and missions to combat climate change, national security, and exciting new technology demonstrations. Our Electron rocket has become the second most frequently launched U.S. rocket annually and has delivered more than 230 satellites to orbit, all while we work to develop Neutron, our upcoming medium-lift, reusable launch vehicle for larger constellation deployment. Our Space Systems business designs and builds our extensive line of satellites, payloads, and their components, including spacecraft that have been selected to support NASA missions to the Moon and Mars and components used...

Company Description Join us and make YOUR mark on the World! Lawrence Livermore National Laboratory (LLNL) has turned bold ideas into world-changing impact advancing science and technology to strengthen U.S. security and promote global stability. Our mission spans four critical national security areas nuclear deterrence, threat preparedness, energy security, and multi-domain defense empowering teams to take on the toughest challenges of today and tomorrow. With a culture built on innovation and operational excellence, LLNL is a place where your expertise can make a real impact. Job Description We have an internship opening for an undergraduate student who is majoring in architecture or engineering (civil, structural, electrical, or mechanical). This internship is designed to provide valuable professional experience while contributing to impactful, real-world projects. Interns will work closely with architects and engineers on capital infrastructure projects within...

California Water Service Job Description: The Engineering Intern is responsible for assisting with projects and tasks across the State of California, within the assigned Engineering department. The position will provide support of projects, regulatory requirements, and Company goals, and may work on small projects, as well as large projects under the guidance of a project manager within the Engineering Department. INTERNSHIP REQUIREMENTS: One-year commitment from June 1, 2026, through May 28, 2027 Summer - full time (32-40 hours per week) Fall/Spring/Winter - based on school schedule 100% on-site, no remote option Eligibility for employment in the US is required without sponsorship (ex. OPT, F1, etc.) Capital Delivery - Civil, Construction, and Engineering (Multiple Disciplines) Provides support including budgeting, planning, designing, permitting, bidding, and managing construction of capital projects. These projects include wells, tanks, pump stations,...

California Water Service Job Description: The Engineering Intern is responsible for assisting with projects and tasks across the State of California, within the assigned Engineering department. The position will provide support of projects, regulatory requirements, and Company goals, and may work on small projects, as well as large projects under the guidance of a project manager within the Engineering Department. INTERNSHIP REQUIREMENTS: One-year commitment from June 1, 2026, through May 28, 2027 Summer - full time (32-40 hours per week) Fall/Spring/Winter - based on school schedule 100% on-site, no remote option Eligibility for employment in the US is required without sponsorship (ex. OPT, F1, etc.) New Business Interns - Civil, Construction and Engineering (Multiple Disciplines) Provides support including budgeting, planning, designing, permitting, bidding, and managing construction of capital projects. These projects include wells, tanks, pump stations,...

About ITT: ITT is a leading manufacturer of critical components for harsh environments that serves fast-growing end markets in flow, aerospace and defense, energy and transportation. Building on our heritage of innovation, we partner with our customers to deliver solutions to the key industries that underpin our modern way of life. Headquartered in Stamford, CT, we have more than 11,700 employees globally with operations in ~40 countries and sales in more than 125. At our core is our engineering DNA, with 1,280+ engineers, 1,700+ active global patents and ~51 manufacturing locations. Our businesses are organized in three distinct segments, each based around our core engineering DNA: Industrial Process: A global leader in centrifugal and twin-screw pumps and engineered valves for chemical, energy, mining, and industrial applications. Our leading brands include the iconic Goulds Pumps (with more than 175 years of history), Bornemann, Habonim, Engineered Valves, Rheinhütte...

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, multi-skilled intern with experience in Computational Fluid Dynamics (CFD) modeling, heat transfer and validation. This role will be part of the Modeling and Simulation CFD team which supports methodology development, engineering design, and testing programs for the KP-FHR and associated components through thermal-hydraulic analysis, with a specialization in CFD. This role will perform CFD validation...

Are you a Structural Engineering student who flourishes when part of a cohesive team where collaboration and ideas flow freely? Do you want to work for a firm that is taking concrete action toward equity, diversity, and inclusion in the workplace? Lionakis is currently seeking engineering students to participate in our 2026 EP (Emerging Professionals) Summer Internship Program. Student Interns will be assigned to our Sacramento office within our Structural Engineering studio. Applicants must be current students working towards an accredited degree in a related field (as listed below) to be considered. As the Student Intern, you will... Provide engineering support for projects with calculations, spreadsheets, and computer analysis using basic knowledge of construction materials. Provide Revit support utilizing Revit/BIM software to assist with creating construction documents. Support coordination of project design and construction process. Provide administrative support to...

Are you a Structural Engineering student who flourishes when part of a cohesive team where collaboration and ideas flow freely? Do you want to work for a firm that is taking concrete action toward equity, diversity, and inclusion in the workplace? Lionakis is currently seeking engineering students to participate in our 2026 EP (Emerging Professionals) Summer Internship Program. Student Interns will be assigned to our Orange County office within our Structural Engineering studio. Applicants must be current students working towards an accredited degree in a related field (as listed below) to be considered. As the Student Intern, you will... Provide engineering support for projects with calculations, spreadsheets, and computer analysis using basic knowledge of construction materials. Provide Revit support utilizing Revit/BIM software to assist with creating construction documents. Support coordination of project design and construction process. Provide administrative support to...