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399 mechanical engineer intern jobs found

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mechanical engineer intern California
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ES
Feb 27, 2026
Intern
Mechanical Engineer Intern
EchoStar San Diego, CA, USA
Company Summary EchoStar builds solutions that help families and communities stay connected. We'll launch your career and empower you to change lives. Our brands include Boost Mobile, DISH TV, Gen Mobile, Hughes and Sling TV. We serve millions of customers with offerings ranging from satellite to streaming services and global to personal networking solutions. Department Summary Our Technology teams challenge the status quo and reimagine capabilities across industries. Whether through research and development, technology innovation or solution engineering, our team members play a vital role in connecting consumers with the products and platforms of tomorrow. Job Duties and Responsibilities EchoStar has an exciting opportunity for a Mechanical Engineer Intern . This position will be located at our office in San Diego, CA Key Responsibilities: Create 3D models on a Creo CAD system, generate detailed drawings, perform product testing, build prototypes, generate...
CP
Jan 17, 2026
Intern
Mechanical Engineer Intern
CalPortland Mojave, CA, USA
Job Summary CalPortland is seeking a summer intern for the Mojave cement plant. This internship is ideal for a student interested in mechanical engineering. The intern will have the opportunity to work on a variety of heavy capital projects and/or maintenance projects. Exposure to a cement plant. Compensation $23.00-$27.00/hr Responsibilities Complete Safety and MSHA training and any other site/job specific required training Carry-out and practice all Safety training and Company policies in the CalPortland workplace Provide help, designing and budgeting for projects at multiple plant locations Additional work with reliability and project engineers Assist in routine housekeeping and maintenance of the facilities Learn about other CalPortland departments and interface as required Attend Summer Intern Orientation event at Corporate Headquarters in Las Vegas, NV Perform plant tasks as assigned Education Currently pursuing a bachelor's degree in Civil...
CP
Oct 03, 2025
Intern
Mechanical Engineer Intern
CalPortland CA, USA
Job Summary CalPortland is seeking a summer intern for the Oro Grande cement plant. This internship is ideal for a student interested in mechanical engineering. The intern will have the opportunity to work with the plants mechanical/maintenance department. This intern will gain insight into the cement and building materials industry. Compensation $20.50-$27.00/hr DOE Responsibilities Complete Safety and MSHA training and any other site/job specific required training Carry-out and practice all Safety training and Company policies in the CalPortland workplace Provide support to the Oro Grande Maintenance Mechanical team. Assist in PM instruction develeopment Learn about cement plant operations Additional work with plant engineers Assist in routine housekeeping and maintenance of the facilities Learn about other CalPortland departments and interface as required Attend Summer Intern event at Corporate Headquarters in Las Vegas, NV Perform plant tasks as...
EU
Mar 08, 2026
Intern
Intern - Mechanical Engineer
$22.00 hourly
Emcor UK El Cajon, 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...
JA
Feb 27, 2026
Intern
Mechanical Design Engineer Intern, Structures
$22.00 - $31.00 hourly
Joby Aviation Santa Cruz, CA, USA
Overview Joby Aviation is seeking a passionate student to join our design engineering team for the summer. In this role, you will be responsible for the development & detailed design of structural airframe components. You will be deeply involved in everything from preliminary concept work to actual production. For this role, you will have a strong understanding of CAD design and the ability to do hand calculations and create detailed models and drawings. Further, you will work closely with many disciplines, including our electronics, wiring systems, structural analysis, and manufacturing teams. Responsibilities Understanding of static and structural hand-calculations Design of composite/metallic brackets to integrate electronics and other aircraft systems Perform initial layout and sizing Fastener sizing, bond area sizing, riveting Composite <-> metallic material compatibility, galvanic corrosion Detailed drawing creation, GD&T Direct communication with...
OA
Mar 08, 2026
Intern
Intern, Mechanical Engineer [Propulsion]
Odys Aviation Long Beach, CA, USA
About Odys Our mission at Odys is simple - we build safe, sustainable aircraft to cut travel time in half on the world's busiest corridors. Our flagship aircraft Alta enables travelers to skip the big-airport hassle by using city helipads and local airports to connect cities less than 1,000 miles apart (approx 40% of flights). And on average cut CO2 by 76% on tens of billions of flight miles globally. To get there, we start with our UAV called Laila for commercial logistics, medical transport, humanitarian aid, disaster relief, and defense missions. We're deploying aircraft with launch partners (Fiji Airways, Honeywell, Aramex, US Navy) beginning in late 2025 and already have firm orders for aircraft under contract. We're a team of expert engineers from deep tech and aerospace that focus on fast iterations loops (completed transition flight faster than our peers) combined with mastery of the aircraft certification process. Previously, our team developed custom drones, brought...
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...
NB
Mar 06, 2026
Full time
Design Engineer II
Niagara Bottling, LLC Diamond Bar, CA, USA
At Niagara, we're looking for Team Members who want to be part of achieving our mission to provide our customers the highest quality most affordable bottled water. Consider applying here, if you want to: Work in an entrepreneurial and dynamic environment with a chance to make an impact. Develop lasting relationships with great people. Have the opportunity to build a satisfying career. We offer competitive compensation and benefits packages for our Team Members. Design Engineer II Design Engineer II is responsible for initial and ongoing evaluation, feasibility analyses, and optimization of Niagara's Mechanical, Electrical, and Plumbing [MEP] system designs. MEP systems include, but are not limited to: product water processing, cooling/chilled water, compressed air, HVAC, and bottling/injection molding production equipment. Detailed Description System Assessments Feasibility analyses and utility consumption modeling for expansion initiatives Evaluation and...
CV
Mar 01, 2026
Intern
R & D Engineering Intern-CM
Cla-Val Costa Mesa, CA, USA
Applicants are considered for positions within the company without regard to race, color, creed, religion, sex, sexual orientation, gender, gender identity and/or expression, age, national origin or ancestry, physical or mental disability, military or protected veteran status, marital or parental status, medical condition unrelated to the person's ability to perform the job, pregnancy, genetic information, political affiliation, citizenship, or any other basis protected by federal, state, or local laws. Any offer of employment is contingent upon your successful completion of a pre-employment substance abuse and physical screening, verification of documents pertaining to your right to work in the United States using E-VERIFY, and completion of required employment documents GRISWOLD INDUSTRIES R&D Engineer Intern JOB DESCRIPTION : Job Summary: Under moderate to extensive supervision, apply mechanical & electrical engineering principles to product development...
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...
DC
Feb 28, 2026
Intern
Manufacturing Engineering Intern
DCX-CHOL Enterprises, Inc. Los Angeles, CA, USA
Company Overview: DCX-CHOL Enterprises Inc. is a leading source for high performance interconnect products. We design, engineer, and produce cable assemblies, wiring harnesses, conduit assemblies, custom connectors, wire enclosures and much more! We are privately held American owned Small Business made up of five (5) vertically integrated manufacturing and assembly divisions, each with their own history, specializations and products. Position Purpose: The Manufacturing Engineering Intern will support the Manufacturing Engineering Department with day-to-day activities related to manufacturing documentation, production support, and process improvement. This internship is designed to provide hands-on learning experience in cable assembly, electro-mechanical manufacturing, basic 3D printing, and ERP-based production systems within an aerospace and defense manufacturing environment. Position Description: The intern will work closely with Manufacturing Engineers, Production, and...
NB
Feb 26, 2026
Full time
Systems Engineer I
Niagara Bottling, LLC Diamond Bar, CA, USA
At Niagara, we're looking for Team Members who want to be part of achieving our mission to provide our customers the highest quality most affordable bottled water. Consider applying here, if you want to: Work in an entrepreneurial and dynamic environment with a chance to make an impact. Develop lasting relationships with great people. Have the opportunity to build a satisfying career. We offer competitive compensation and benefits packages for our Team Members. Systems Engineer I Systems engineering is an interdisciplinary of engineering that focuses on how to design and manage complex engineering systems over their life cycles. Issues such as reliability, logistics, coordination of different teams, evaluation measurements, and other disciplines that becomes more difficult when dealing with large or complex projects. Systems engineering deals with work-processes, optimization methods, and risk management tools in such projects. It overlaps technical and human-centered...
NB
Feb 22, 2026
Full time
Systems Engineer I
Niagara Bottling, LLC Diamond Bar, CA, USA
At Niagara, we're looking for Team Members who want to be part of achieving our mission to provide our customers the highest quality most affordable bottled water. Consider applying here, if you want to: Work in an entrepreneurial and dynamic environment with a chance to make an impact. Develop lasting relationships with great people. Have the opportunity to build a satisfying career. We offer competitive compensation and benefits packages for our Team Members. Systems Engineer I Systems engineering is an interdisciplinary of engineering that focuses on how to design and manage complex engineering systems over their life cycles. Issues such as reliability, logistics, coordination of different teams, evaluation measurements, and other disciplines that becomes more difficult when dealing with large or complex projects. Systems engineering deals with work-processes, optimization methods, and risk management tools in such projects. It overlaps technical and human-centered...
ME
Feb 22, 2026
Intern
Intern - Engineer
$22.00 hourly
Mesa Energy Systems, Inc. Bakersfield, 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...
RT
Feb 09, 2026
Intern
Electro-Mechanical Engineering Intern
Rainmaker Technology Corporation El Segundo, CA, USA
Location: El Segundo, CA | Department : Engineering | Employment Type: Intern-Fulltime Onsite | Start: Immediate Rainmaker is pioneering a modern cloud seeding system to solve water scarcity and inclement weather problems. We develop and incorporate radar validation, weather-resistant UAS, numerical weather modeling, and sustainable cloud seeds into an effective precipitation enhancement solution. The Engineering team at Rainmaker works on our UAS, dispersion payload, and in-situ/remote sensing systems. If you are interested in working in an extremely innovative and fast paced environment, where your work directly makes an impact and difference in our operational system, this is a fantastic opportunity. In this role you will be reporting directly to the Lead Mechanical Engineer and will be working on mission critical subsystems for our UAS platform. What You'll Do Rapid Hardware Prototyping: Design and build functional prototypes for UAS subsystems, iterating...
CW
Jan 31, 2026
Intern
Engineering Intern
California Water Service Group CA, USA
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,...
CW
Jan 31, 2026
Intern
Engineering Intern
California Water Service Group CA, USA
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...
CW
Jan 31, 2026
Intern
Engineering Intern
California Water Service Group CA, USA
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, Electrical and Engineering (Multiple Disciplines) Provides support including budgeting, planning, designing, permitting, bidding, and managing construction of capital projects. These projects include wells, tanks, pump...
CW
Jan 31, 2026
Intern
Engineering Intern
California Water Service Group CA, USA
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,...
As
Dec 19, 2025
Intern
CAD Engineer/Librarian Intern (Summer 2026)
$29.00 hourly
Astranis San Francisco, CA, USA
Astranis builds advanced satellites for high orbits, expanding humanity's reach into the solar system. Today, Astranis satellites provide dedicated, secure networks to highly-sophisticated customers across the globe- large enterprises, sovereign governments, and the US military. With five satellites on orbit and many more set to launch soon, the company is servicing a backlog of more than $1 billion of commercial contracts. Astranis is the preferred satellite communications partner for buyers with stringent requirements for uptime, data security, network visibility, and customization.Astranis has raised over $750 million from some of the world's best investors, from Andreessen Horowitz to Blackrock and Fidelity, and employs a team of 450 engineers and entrepreneurs. Astranis designs, builds, and operates its satellites out of its 153,000 sq. ft. headquarters in Northern California, USA. CAD Engineer/Librarian Intern (Summer 2026) As an Intern, you will have an amazing...
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