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29 mechanical process engineer jobs found

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Intern mechanical process engineer California
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EU
Mar 31, 2026
Intern
Intern - Mechanical Engineer
$22.00 hourly
Emcor UK Grover Beach, 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...
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...
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...
HD
Mar 31, 2026
Intern
Traffic Engineering Intern
HDR Irvine, CA, USA
At HDR, our employee-owners are fully engaged in creating a welcoming environment where each of us is valued and respected, a place where everyone is empowered to bring their authentic selves and novel ideas to work every day. As we foster a culture of inclusion throughout our company and within our communities, we constantly ask ourselves: What is our impact on the world? Watch Our Story:' https://www.hdrinc.com/our-story' Each and every role throughout our organization makes a difference in our ability to change the world for the better. Read further to learn how you could help make great things possible not only in your community, but around the world. We believe transportation is more than movement, it's the foundation of connected, thriving communities. As part of HDR's Transportation Business Group, you'll help shape the systems that move people and goods safely, efficiently, and sustainably. From designing resilient highways and iconic bridges to advancing transit,...
Ve
Mar 29, 2026
Intern
Co-op - Product Design Engineering
Vesync Tustin, CA, USA
The Company: VeSync is a portfolio company with brands that cover different categories of health & wellness products. We wouldn't be surprised if you have one of our Levoit air purifiers in your living room or a COSORI air fryer whipping up healthy and delicious meals for you every night. We're a young and energetic company, we've had tremendous success, and we are constantly growing our team. As we garner more industry attention - just check out our accomplishments and awards by CES Innovation, iF Design, IGA, and Red Dot - we also need driven and talented people to join our team. That brings us to you, and what you'll be joining. Our teams are smart and diligent and take ownership of their work - they're confident in their work but know how to collaborate with open ears and a spirit of learning. If you're down-to-earth, approachable, and easy to strike up a conversation with, this may be a great fit for you. Check out our brands: levoit.com | cosori.com |...
PG
Mar 29, 2026
Intern
Transmission Line Civil Engineering, Intern
Pacific Gas and Electric Company Oakland, CA, USA
Requisition ID # 170874 Job Category: Administrative / Clerical Job Level: Individual Contributor Business Unit: Strategy & Growth Work Type: Hybrid Job Location: Oakland Number of Positons: 5 Department Overview Electric Operations ensures the delivery of clean, safe, reliable, and affordable energy to nearly 16 million people in Northern and Central California. Electric Operations is responsible for every aspect of PG&E's electric distribution and transmission operations and maintenance, as well as power generation operations. The organization manages over 100,000 circuit miles of electric distribution lines and over 18,000 circuit miles of interconnected transmission lines and operates and maintains hydroelectric, fossil, solar generation, and battery storage facilities. A critical component of Electric Operations is the planning, design, and maintenance of the electric transmission system. The Transmission Line (T-Line) Engineering group supports the safe,...
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...
Im
Mar 26, 2026
Intern
Engineering Intern
Imerys Lompoc, CA, USA
The Company Imerys is the world's leading supplier of mineral-based specialty solutions for the industry with €3.4 billion in revenue and 12,300 employees in 40 countries in 2025. The Group offers high value-added and functional solutions to a wide range of industries and fast-growing markets such as solutions for the energy transition and sustainable construction, as well as natural solutions for consumer goods. Imerys draws on its understanding of applications, technological knowledge, and expertise in material science to deliver solutions which contribute essential properties to customers' products and their performance. As part of its commitment to responsible development, Imerys promotes environmentally friendly products and processes in addition to supporting its customers in their decarbonization efforts. Imerys is listed on Euronext Paris (France) with the ticker symbol NK.PA. The Position Engineering Intern Job Summary Intern - Summer 2026...
TA
Mar 26, 2026
Intern
Maintenance Engineering Intern
Toray Advanced Composites USA, Inc. Morgan Hill, CA, USA
Toray Advanced Composites (TAC) is a leading supplier of advanced composite materials for aerospace, sporting goods, motorsport, and industrial markets. You will find our thermoset composite products on nearly every satellite, space launch vehicle, unmanned aircraft, military and commercial aircraft in production today. TAC also provides composites materials to industrial and recreational applications including mountain bikes, medical prosthetics, and sports equipment. Our thermoplastic prepregs, known in the industry as Cetex®, are found in a wide range of commercial and military aircraft, including large wing structures and interior applications like seats and galleys. Our Cetex products are available in unidirectional tape or fabric form in a variety of engineered thermoplastic resins including PAEK, PEKK, PEEK, PPS, PEI as well as a full line of performance thermoplastics including Nylon, PET, PC/ABS, HDPE, and PP. Summary of Functions: The Maintenance Engineering Intern...
Co
Mar 26, 2026
Intern
Civil Engineering College Summer Intern (Public Works)
City of Gilroy, CA CA, USA
Salary: $16.90 - $18.84 Hourly Location : CA 95020, CA Job Type: Internship Job Number: FY 25/26 -00046 Department: Public Works Opening Date: 03/24/2026 Closing Date: 4/14/2026 5:00 PM Pacific CIVIL ENGINEERING COLLEGE SUMMER INTERNSHIP Public Works Department, Engineering Division 15 - 25 hours per week $16.90 - $18.84 per hour This is an on-site position that actively supports department operations. The City of Gilroy is an equal opportunity employer and supports workforce diversity, equity, inclusion and belonging. ABOUT THE POSITION Are you a motivated and aspiring Civil Engineer looking to apply your knowledge in a real-world setting? The City of Gilroy is recruiting for a Civil Engineering Intern to support critical projects that directly impact the community. As an Intern, you will assist in the design, analysis, and implementation of infrastructure projects, gaining exposure to municipal engineering processes. As a Civil Engineering Intern, you...
Co
Mar 25, 2026
Intern
Civil Engineering College Summer Intern
City of Gilroy, CA CA, USA
Salary: $16.90 - $18.84 Hourly Location : CA 95020, CA Job Type: Internship Job Number: FY 25/26 -00045 Department: Utilities Department Opening Date: 03/23/2026 Closing Date: 4/14/2026 5:00 PM Pacific CIVIL ENGINEERING COLLEGE SUMMER INTERNSHIP Utilities Department, Engineering Division 15 - 25 hours per week $16.90 - $18.84 per hour This is an on-site position that actively supports department operations. The City of Gilroy is an equal opportunity employer and supports workforce diversity, equity, inclusion and belonging. ABOUT THE POSITION Are you a motivated and aspiring Civil Engineer looking to apply your knowledge in a real-world setting? The City of Gilroy Utilities Department is recruiting for a Civil Engineering Summer Intern to support critical municipal utilities projects that directly impact the community. As an Intern, you will assist in the design, analysis, and implementation of water, wastewater, and stormwater infrastructure...
Ra
Mar 22, 2026
Intern
Manufacturing Engineering Intern (Summer 2026)
Ralliant Hollister, CA, USA
Job Description PacSci EMC, a Ralliant Operating Company, delivers innovative energetic material solutions that enable mission success across aerospace and defense. As part of our commitment to developing future talent, we are seeking a Manufacturing Engineering Intern for Summer 2026, with probability of part time thereafter . In this role, you will gain hands-on experience in a fast-paced, highly regulated environment while supporting engineering and manufacturing initiatives. You will collaborate with engineers, technicians, and cross-functional teams on real-world projects that drive operational excellence, product quality, and continuous improvement. Key Responsibilities Support the development and completion of compliance matrices. Assist in preparing and updating PFMEA documentation. Contribute to risk assessments for manufacturing processes. Participate in the design of tooling to support production. Conduct process development experiments and report...
LM
Mar 22, 2026
Intern
Mechanical Engineering Intern
$21.00 hourly
Lyons Magnus LLC Fresno, CA, USA
Job Type Internship Description Lyons Magnus leads the food industry with creativity and innovation, crafting top-quality products across all manufacturing phases, from raw materials to marketing. With over 2000 diverse items for industrial ingredient and food service sectors, Lyons caters to leading restaurant chains nationally and internationally. At Lyons, our diverse and talented staff is the heart of our organization. We foster a thriving work environment where employees are engaged in shaping both the company's and their own future. The Mechanical Engineering Intern will support the Engineering team at our Fresno manufacturing facility, which produces syrups and sauces. This role is designed to provide hands-on exposure to manufacturing operations, process improvement, and plant performance. The intern will work on real projects that improve efficiency, reduce waste, and support safe, high-quality production. This internship is structured to provide meaningful project...
IV
Mar 22, 2026
Intern
Intern, Process Engineering
II-VI Aerospace & Defense Fremont, CA, USA
Job Description Primary Duties & Responsibilities Responsible for designing fixtures/tooling as needed for prototype build, assist senior engineers in performing process development activities in the OSA lab, perform Design of Experiments (DOEs) to determine optimum solutions to manufacturing issues. Education & Experience No experience necessary. Must be enrolled in college per the Coherent Internship Guidelines. Skills Capable of using Solid Works to design simple fixtures/tooling. Work effectively in a team setting as well as an individual contributor with limited supervision. Working Conditions This role will be based on-site in Fremont, CA. Regular use of a computer and other office equipment is necessary. Cleanroom work may be needed Use of mechanical dimension inspection equipment Physical Requirements Sitting for extended periods while working on a computer or in meetings. Use of hands and fingers for typing, writing,...
DI
Mar 22, 2026
Intern
** Mechanical Engineering Intern
Dwyer Instruments, Inc. San Marcos, CA, USA
Job Type Internship Description About the Company: DwyerOmega is a globally trusted leader in manufacturing innovative instrumentation solutions for Process Measurement, Automation, Control and HVAC markets. With very strong brand recognition and high levels of customer loyalty, DwyerOmega has an unmatched reputation for providing customized solutions that meet and exceed customer needs. Our team of engineering experts help our customers select technical, and often configured, product solutions for their unique applications. The company offers over 300,000 state-of-the-art products for process measurement and control of temperature, humidity, pressure, strain, force, flow, level, pH, conductivity, and indoor air quality, and is a recognized global leader in the digital marketing of technical products. The products that we manufacture are used to control and drive process efficiency, creating safe and sustainable environments. At DwyerOmega, we enable our customers to...
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,...
RE
Mar 14, 2026
Intern
Civil Design Engineering Intern
Revamp Engineering Oakland, CA, USA
Role Summary Revamp is seeking a Civil Design Engineering Intern to support utility-scale solar and battery energy storage (BESS) projects from a civil engineering perspective. This role focuses on land development design, grading, drainage, and site layout for renewable energy facilities. You will work alongside experienced civil engineers to develop and update project layouts, prepare engineering documentation, and contribute to real-world renewable energy projects that directly support the energy transition. Ideal candidates are actively pursuing a Civil or Environmental Engineering degree and have prior exposure to AutoCAD and civil design principles. Internship Program Details • Twelve-week full-time summer program, remote or in-office if local. • Approximately 40 hours per week during the summer term. • Schedule flexibility may be available to accommodate academic calendars. • Interns work under the direction of a designated manager. • Interns may be evaluated...
AE
Mar 12, 2026
Intern
Mechanical Engineering Intern
Antora Energy San Jose, CA, USA
Antora builds and deploys thermal energy storage to power always-on industrial operations and data centers with low-cost energy. Factory-built in California, Antora's thermal batteries deliver reliable and cost-effective heat and power for industrial loads of any size. Antora is electrifying global industry while supporting U.S. manufacturing jobs, lowering costs for energy consumers, and enhancing the competitiveness of American industry. We are growing our company with people who put team and mission first, value connection through laughter and joy, and build with humility and openness. We are committed to continue building a diverse, passionate, and creative team dedicated to a future where every industrial facility, everywhere on earth, is powered by abundant, clean, low-cost energy. Position Summary Antora is seeking a highly-motivated Mechanical Design Engineering Intern to join our mission-driven team within the Mechanical Design Engineering organization (spanning...
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