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391 intern mechanical engineer jobs found

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Onsite intern mechanical engineer California
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EU
Mar 28, 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...
EU
Mar 27, 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...
IV
Mar 15, 2026
Intern
Intern - Mechanical Engineer
II-VI Aerospace & Defense Fremont, CA, USA
Job Description Primary Duties & Responsibilities Support liquid cooling projects Support collecting & analyzing engineering data Thermal design and testing Perform miscellaneous mechanical designs. Perform mechanical stress analysis to support optical design. Document all design/testing/simulation process Education & Experience Minimum rising Senior (completed 3 years by start) of Bachelor degree in science Majors: Mechanical Engineering Relevant coursework: Machine design, heat transfer knowledge in Solidworks, 3D printing, FEA Open to currently enrolled students or those who have graduated within one year of the internship start date. Skills & Other Requirements Excellent written and verbal communication. Team-oriented but able to work independently when needed. Adaptable and eager to learn in a fast-paced environment. Attention to detail and time management. [Any role-specific skills, like Excel, programming,...
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...
OA
Mar 26, 2026
Intern
Mechanical Engineer Intern [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 2026 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...
KS
Mar 27, 2026
Intern
Intern, Mechanical Engineering
Kulicke & Soffa Santa Ana, CA, USA
Job Description Working with various Engineers on ME team, intern will assist in completing tasks. Assembly and testing new designs and/or commercial components along with data collection/reporting are the primary tasks. Analysis of results, test report writing and review will be required. Additional work with NX CAD to help design and detail parts used in assemblies may be required (no prior NX experience needed). Responsibilities See above Qualifications 3+ years of Mechanical Engineering college completion. Familiar with using a CAD program (Solidworks or AutoCAD or equivalent). Hands on skills, ability to put together mechanical assemblies, use measurement equipment and interest in mechanical assembies.
SA
Mar 29, 2026
Full time
Assistant Engineer
Sacramento Area Sewer District Sacramento, CA, USA
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...
OA
Mar 27, 2026
Intern
Manufacturing Engineer - Intern
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 2026 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...
NB
Mar 26, 2026
Full time
Systems Engineer I
$82,012 - $118,917 yearly
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...
BE
Mar 22, 2026
Intern
Systems Mechanical Engineering Intern
$36.00 - $39.00 hourly
Bloom Energy San Jose, CA, USA
This is a 10-week internship starting June 8 or 15 and is fully on-site at the listed office location. Company Overview 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 a 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...
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 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...
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...
OW
Oct 11, 2025
Full time
Engineering Technician or Sr. Engineering Technician
Otay Water District San Diego, CA, USA
Salary: $40.05 - $55.19 Hourly Location : San Diego, CA Job Type: Full-Time Regular Job Number: 00297 Department: Engineering Division: Design Opening Date: 10/08/2025 General Duties Compensation Engineering Technician: $40.05 - $50.06 Sr. Engineering Technician: $44.15 - $55.19 Ideal Candidate Are you an analytical person with great attention to detail? Do you have experience in an engineering or construction environment performing designs and assisting Civil Engineers in the design of Capital Improvement Program (CIP) projects? Do you have experience using AutoCAD Civil 3D and ArcGIS Desktop software? Are you able to keep track of competing priorities and remain focused? If so, we would like to hear from you. We also welcome veterans and transitioning military. Consider joining a team of hardworking employees who work to protect and preserve water, one of our most valuable natural resources. The experience you've gained during your service can continue...
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