242 intern jobs found in San Marcos, CA

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...

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...

Our culture is rooted in a shared vision - to help keep the world's most precious resource safe - and in the core values that guide us in pursuing this vision and delivering on our mission to clients. We provide the highest quality liquid storage design and construction services at the best long-term value with an unrivaled customer experience. We have built over 3,500 pre-stressed concrete liquid storage tanks over the past 90 years around the country and world, as a result we have become the leader in the industry when it comes to quality and innovation. As a Structural Design Engineer Intern at DN, you will gain hands-on experience in the exciting field of civil engineering and construction. With a dedicated mentor in the industry you will contribute to real projects, develop valuable skills, and learn about the lifecycle of heavy-civil construction projects, from conception to completion. This is a great opportunity to gain valuable experience, build your future, and make...

Work Arrangement This is a full-time, onsite position as part of our Internship Program. This position performs functions or is immediately available to perform functions that are considered safety sensitive for the purpose of maintenance or preventive maintenance as defined by 14 CFR 121. Therefore, employment and continued employment with the company is conditioned upon full compliance with the company's Antidrug and Alcohol Misuse Prevention Program as required by 14 CFR Part 120, 135, 145 and 49 CFR Part 40. Job Overview The Design Engineering Intern at AEVEX Aerospace supports the design team involved in aircraft structural and system modifications. Assignments may involve introductory use of 3D CAD design software or FEMAP/NASTRAN FEM software. Specific design tasks will vary, and may involve document control, design and completion of engineering drawings, review of aircraft components and sub-systems, payload integration design, aircraft weight & balance...

Job Description MECHANICAL, ELECTRICAL and PLUMBING Mechanical, Electrical and Plumbing (MEP) designs are the lifeblood of a building. Michael Baker designs high-performing systems for complex facilities using innovative strategies to reduce energy usage and operating costs. Our team includes experts in central utility plants, chilled water systems, fluid piping systems, medium voltage systems (up to 38kV), distributed generation, combined heat and power (CHP) and alternate energy solutions (Photovoltaic and Battery Energy Storage System). We bring decades of experience working with users to deliver optimized system designs. We specialize in energy analysis and modeling for airports, transit centers, industrial facilities, healthcare facilities, military training centers and maintenance facilities. We specialize in highly granular modeling of critical systems, such as data centers and central utility plants. What We're Looking For: Michael Baker International is...

Overview Selution, in partnership with Cordis, specializes in the development of ground-breaking technology and commercialization of advanced drug device combination products for the treatment of coronary and peripheral artery disease. Our mission is to revolutionize healthcare by creating next-generation solutions that address unmet and critical medical needs. Responsibilities We are seeking a highly motivated R&D Engineering Intern to support the research, design, and development of innovative medical devices. This role offers hands-on experience in early-stage product development, prototyping, and testing within a regulated medical device environment. The intern will work closely with cross-functional teams to help translate user needs and design concepts into functional prototypes and validated designs that improve patient outcomes. Key Responsibilities Assist with the design and development of medical device concepts, components, and subsystems Support...

We currently have an opening for a student to fill a summer intern position to begin in Summer 2026 at our Irvine, CA office. We are looking for students with an interest in gaining practical engineering experience from experienced project managers, engineers and technicians through on-the-job training on real projects. During this time, you will be encouraged to hone your problem-solving abilities and develop technical skills. Ranked #2 as a Top Workplace, raSmith is a growing multi-disciplinary consulting civil and structural engineering and land surveying firm with over 45 years of experience. We work on projects nationwide from our seven locations in Wisconsin, Illinois and California. At raSmith, our culture is focused on client service, quality and innovation. We strongly believe in work/life balance and employee development. These attributes and our people-oriented environment have led us to receive numerous project and culture awards. Site Design Intern - Primary...

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...

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...

SUMMARY OF POSITION: Under close supervision, performs engineering-related assignments as part of a cross-functional team. This may include learning and using various instruments and different software to assist engineers and designers on tests related to the design, performance, or failure of company products. SPECIFIC DUTIES: 1. As appropriate, learn to use Instron machine, CRV/noise tester, or other electrical/mechanical testers to assist engineers and designers in project tasks. 2. Work with engineering and marketing to learn the specifics of component design, manufacturing and marketing. 3. Assist engineers and test lab personnel in testing required for development and proof of design integrity. 4. Learn to analyze test results and makes charts/graphs out of testing data. 5. Assist engineers in the preparation of specifications, estimates or reports needed to manage a program through development. 6. Assist in maintaining engineering records. 7. Assist in ongoing division...

SUMMARY OF POSITION: Under close supervision, performs engineering-related assignments as part of a cross-functional team. This may include learning and using various engineering software packages to assist senior engineers and designers in preparing a variety of detailed layouts, design details, or other project tasks. SPECIFIC DUTIES: 1. As appropriate, learn Pro E, other CAD software, or other engineering software packages to assist senior engineers and designers in project tasks. 2. Work with engineering and marketing to learn the specifics of component design, manufacturing and marketing. 3. Assist engineers and test lab personnel in completing testing required for development and proof of design integrity. 4. Learn to interpret test results; to modify designs to overcome performance issues. 5. Assist in process development of new programs. 6. Assist engineers in the preparation of specifications, estimates or reports needed to manage a program through development. 7....

SUMMARY OF POSITION: Under close supervision, performs engineering-related assignments as part of a cross-functional team. This may include learning and using various instruments and different software to assist engineers and designers on tests related to the design, performance, or failure of company products. SPECIFIC DUTIES: 1. As appropriate, learn to use Instron machine, CRV/noise tester, or other electrical/mechanical testers to assist engineers and designers in project tasks. 2. Work with engineering and marketing to learn the specifics of component design, manufacturing and marketing. 3. Assist engineers and test lab personnel in testing required for development and proof of design integrity. 4. Learn to analyze test results and makes charts/graphs out of testing data. 5. Assist engineers in the preparation of specifications, estimates or reports needed to manage a program through development. 6. Assist in maintaining engineering records. 7. Assist in ongoing division...

SUMMARY OF POSITION: Under close supervision, performs engineering-related assignments as part of a cross-functional team. This may include learning and using various engineering software packages to assist senior engineers and designers in preparing a variety of detailed layouts, design details, or other project tasks. SPECIFIC DUTIES: 1. As appropriate, learn Pro E, other CAD software, or other engineering software packages to assist senior engineers and designers in project tasks. 2. Work with engineering and marketing to learn the specifics of component design, manufacturing and marketing. 3. Assist engineers and test lab personnel in completing testing required for development and proof of design integrity. 4. Learn to interpret test results; to modify designs to overcome performance issues. 5. Assist in process development of new programs. 6. Assist engineers in the preparation of specifications, estimates or reports needed to manage a program through development. 7....

Salary: $21.84 - $26.54 Hourly Location : 4845 Casa Loma Avenue Yorba Linda, CA Job Type: Part Time Job Number: 181900249 Department: Public Works Division: Engineering Opening Date: 02/03/2026 Closing Date: Continuous The Position This is a part-time position, with a minimum commitment of 20 hours per week. The internship is subject to funding and need. There will be some flexibility with working hours and efforts will be made to accommodate class schedules if applicable. The position will serve to assist the public works department and engineering division with various functions including administrative processing, permit issuance, plan processing, document management, field assignments, and as needed support. It is anticipated that there will exposure to AutoCAD and capital projects, in addition to the design and construction process where possible. This recruitment will remain open until filled and may close at any time. First review of applications...

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...

Overview Repligen is seeking a Filtration Engineering Intern to support hands-on engineering work at our Rancho Dominguez location. This internship offers an opportunity to contribute to practical, self-contained engineering focused project deliverables with immediate business impact. The intern will work under the guidance of the Process Engineering Manager , to support manufacturing process development and continuous improvement initiatives. This role will apply engineering design principles, hands-on experimentation, and problem-solving techniques to improve process reliability, product quality, and efficiency on the manufacturing line. Responsibilities Design, create detailed drawings, fabricate, and implement fixtures Apply practical mechanical and process design principles to real manufacturing challenges Complete at least one self-contained project from concept through implementation within an 8-12 week internship timeframe Characterize and validate equipment...

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...

About the Organization E2 Consulting Engineers, Inc. (E2) is a professional services firm established in 1988 specializing in a full spectrum of engineering services including project engineering and design, federal base operations and infrastructure support services, gas pipeline construction and inspection services, environmental consulting and remediation, and information technology services. Overview The substation Protection & Control design deliverables include one-line & three-line diagrams, AC & DC elementary & logic diagrams, front & rear panel elevations and wiring, supervisory & control drawings, electrical vendor equipment wiring diagrams, complete cable schedule and bill of materials. The substation Physical design deliverables include general arrangement drawings, electrical equipment plan & elevation drawings, above & below grade conduit & grounding drawings, relay house layout and complete bill of materials....

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...

Job Summary The Design Engineering Intern completes projects related to new product development in support of new business initiatives. Specific tasks include creating project plans, assisting with component design, from initial part/product conceptualization to full engineering development, and creating prototypes. Project work includes day to day interaction with the Business Unit Team, including Sales, Quality, Operations, Supply Chain, R&D, and Manufacturing Engineering. The Intern will also assist with technical engineering support of current product lines through value analysis, product quality improvements, manufacturability, and performance optimization in the field. Throughout the assignment, professional mentoring and guidance will be provided by TA's leadership. Successful interns will be considered for full-time positions upon graduation, should positions be available. Primary Responsibilities Assist in generating product designs in accordance with TA / Industry...