173 Results for

Intern Jobs in Tustin, CA

Jobs

New!

Riverside, CAToday

$16–$21

Student Nurses (Interns) in the BRN Workstudy Program are provided an observation clinical experience for nursing students which encourages students to select Kaiser Permanente for employment after graduation. The students have no effect on staffing and are not considered to be part of the acuity staffing procedures nor can they replace any existing employees.

New!

Newport Coast, CA1 day ago

For example, in a Marketing Internship the participant may be expected to learn and master the role of a non-commissioned marketing associate in addition to opportunities to learn aspects of the commission-based roles, sales department, and other areas. Interns will participate in the following activities: comprehensive onboarding, operational duties within their assigned department, eLearning, and virtual meetings with company leaders, job shadowing, and a direct mentorship with an onsite leader.

New!

Irwindale, CA2 days ago

Be enrolled in formal schooling in a Mechatronics or similar Industrial Maintenance course (e.g., certification program, technical/community college) OR recently graduated from such a program or course within the last 6 months. Assist in generating and executing a preventative maintenance schedule for existing and new assets/equipment.

Glendale, CA30+ days ago

$25–$25

Leveraging proprietary technology, robust data sets, and subject matter expertise, Reveleer provides complete record retrieval and review services so health plans can confidently plan and execute risk, quality, and member management programs to deliver more value and improved outcomes. Reveleer is a healthcare data and analytics company that uses Artificial Intelligence to give health plans across all business lines greater control over their Quality Improvement, Risk Adjustment, and Member Management programs.

Tustin, CA7 days ago

Temporary

You will perform dimensional, mechanical or visual inspection of sub-assemblies or incoming parts to ensure conformance to blueprints, engineering specifications and customer requirements; collect and maintain results according to procedure; prepare part approval documentation in accordance with company and customer procedure; collect and analyze data in support of short-term projects, support the development of verification, and other instructions with graphics and text. Vertically integrated from R&D to final assembly and testing, we offer a unique combination of electrical, chemical, and mechanical product development for weapons and CBRN systems with CNC machining, injection molding, robotic welding, assembly, design, testing, and engineering capabilities.

Irvine, CA30+ days ago

$25–$30 Per Hour

Terran Orbital provides end-to-end satellite solutions by combining satellite design, production, launch planning, mission operations, and on-orbit support to meet the needs of the most demanding military, civil, and commercial customers. And, in the event that a resume or candidate is submitted by a recruiter, an employment agency, or a staffing firm without a fully executed MSA, Terran Orbital has the unrestricted right to pursue and hire any of those candidate(s) without any legal or financial responsibility to the recruiter, agency, and/or firm.

Irvine, CA30+ days ago

$25–$30 Per Hour

Reporting to the Test & Sustaining Engineering Manager – EPS, the Electrical Test Engineering Intern will support our Electrical Power System component and module team by contributing to the development, modernization, and automation of electrical test systems that support critical spacecraft hardware. Terran Orbital provides end-to-end satellite solutions by combining satellite design, production, launch planning, mission operations, and on-orbit support to meet the needs of the most demanding military, civil, and commercial customers.

Irvine, CA30+ days ago

We provide career opportunities that span a variety of disciplines and geographic locations, with projects that our employees plan, design, build and operate as diverse as the needs of our clients. Students with an Environmental or Civil Engineering background will work with a diverse network of senior engineers to peer interns, and across multi-discipline project teams.

Cerritos, CA30+ days ago

Olea Kiosks is a leader in the self-service kiosk industry, designing visually stunning and highly functional kiosks that are seen every day in airports, restaurants, department stores, hospitals, hotels, casinos, and more. With a reputation for producing superior quality products, and the ability to deliver on our customer requirements, Olea is focused on making the right moves which will lead to successful and exemplary outcomes for our customers.

Irvine, CA13 days ago

$18–$20 Per Hour

The intern will gain exposure to key business drivers by assisting in budget versus actual variance analysis and learning how financial data informs strategic decision-making within the homebuilding industry. In addition, each intern will be responsible for completing a final project at the end of the internship, showcasing the skills, knowledge, and insights they have gained, as well as highlighting their contributions to the organization.

Long Beach, CA30+ days ago

$28–$31 Per Hour

Interns will learn one or more software programs specific to their disciplines: AutoCAD, Revit, Civil 3D, Excel, Microstation, VISSIM, Open Roads, Synchro and/or GIS. Share this job with a friend (https://careers-kimley-horn.icims.com/jobs/20276/civil-engineering-intern/job?mode=apply&apply=yes&in_iframe=1&hashed=-1834442239).

Tustin, CA10 days ago

$23–$25 Per Hour

The 2026 Summer Electrical Engineering Intern will support the engineering team in the development, testing, and validation of electronic systems, including analog, digital, and power electronics. ACT is committed to employing empowered and inspired personnel, each focused on the same goal: the highest quality products and service support.

Irvine, CA30+ days ago

$26–$47.50 Per Hour

The successful candidate will assist engineers in developing hardware and software solutions used for the characterization and design verification testing of RF front-end modules, filters, low-noise amplifiers (LNAs), and power amplifiers. At Skyworks, you will find a fast-paced environment with a strong focus on global collaboration, minimal layers of management, and the freedom to make meaningful contributions in a setting that encourages creative thinking.

Long Beach, CA30+ days ago

$30–$33 Per Hour

Share this job with a friend (https://careers-kimley-horn.icims.com/jobs/20275/electrical-engineering-intern/job?mode=apply&apply=yes&in_iframe=1&hashed=-1834442239). We take pride in how our employee retention, robust benefits package, and company values have led to Kimley-Horn’s placement on the Fortune “100 Best Companies to Work” list for 18 years!

Orange, CA30+ days ago

$30–$33 Per Hour

Share this job with a friend (https://careers-kimley-horn.icims.com/jobs/20216/mechanical-engineering-intern/job?mode=apply&apply=yes&in_iframe=1&hashed=-1834442239). We take pride in how our employee retention, robust benefits package, and company values have led to Kimley-Horn’s placement on the Fortune “100 Best Companies to Work” list for 18 years!

Brea, CA30+ days ago

Full-time

To learn more about the way Howmet Aerospace Inc. is advancing the sustainability of our customers, markets, and communities where we operate, review the 2024 Environmental Social and Governance report at www.howmet.com/esg-report . With $7.4 Billion in revenue in 2024, our products play a crucial role in enabling fuel efficiency and lightweighting, contributing to our customers' success and making a positive impact on the world.

Irvine, CA30+ days ago

Our Electrical services include: Electrical System Master Planning & Studies Power System Design, Protection & Generation, Power System Analysis, Facility System Design, Sustainability/Renewable Energy In this role you would perform a variety of tasks including: Developing drawings for electrical systems (power, controls, communications, fire alarm, and security) using CADD. We provide career opportunities that span a variety of disciplines and geographic locations, with projects that our employees plan, design, build and operate as diverse as the needs of our clients.

Garden Grove, CA30+ days ago

If a student program that exposes you to exciting projects and potential career paths with one of the country’s largest MEP building systems firms appeals to you and you're ready for the next big step in your career, then JOIN our team and become a part of an organization that values PEOPLE, SAFETY, INNOVATION, COLLABORATION, INTEGRITY, ACCOUNTABILITY & SUSTAINABILITY. Primary responsibility is to assist a design manager or project manager to successfully coordinate a project using the necessary engineering, labor, equipment, materials, tools, and subcontracted services.

Chino, California30+ days ago

$15.60–$20.80 Per Hour

However, employees who have access to the compensation information of other employees or applicants as a part of their essential job functions cannot disclose the pay of other employees or applicants to individuals who do not otherwise have access to compensation information, unless the disclosure is (a) in response to a formal complaint or charge, (b) in furtherance of an investigation, proceeding, hearing, or action, including an investigation conducted by the employer, or (c) consistent with the contractor’s legal duty to furnish information. Overview: The Supply Chain Engineering Co-op Intern will assist with internal and external business needs and ensure they are meeting and/or exceeding requirements.

Lake Forest, CA30+ days ago

Full-time

Our Trust Charter is our Code of Conduct and demonstrates our commitment to ethics, safety, sustainability, quality and cybersecurity, underpinning every aspect of our business and our willingness to behave and respond respectfully and in good faith to all our stakeholders. Schneider Electric is looking for a self-driven student pursuing a degree in Computer Science for a 12-week summer intern position as a Software Engineering Intern in our Lake Forest, CA office.

Wilmington, CA30+ days ago

Past projects/duties include: analyze refinery process flow data and compare to recommended optimum levels, this will help in identifying equipment failures which cause variances in capacity from the optimum levels; update information on gasoline blends and tank samples in preparation for an annual blender waiver audit; develop applications to better present process data for refinery operating decisions. Past projects/duties include: perform process calculations for the Risk Management Plan, including taking physical surveys of refinery process units; work on various process engineering projects within a Wastewater Treatment Plant; participate in inspections and/or testing that is conducted by federal, state, or local officials.

Chino, California30+ days ago

Intern

What we are looking for: Finance and Accounting interns/co-ops are required to be currently enrolled in Finance or Accounting or a similar program at an accredited college or university. FlatironDragados's Intern Program provides challenging and rewarding work opportunities for college students majoring in Finance or Accounting.

Tustin, CA30+ days ago

Irvine, CA13 days ago

$21–$25 Per Hour

PHYSICAL: Generally may require some reaching, bending, stooping, squatting, crawling, kneeling, pushing, pulling, lifting, carrying up to 20 pounds, finger dexterity, repetitive motions, standing, walking, sitting, hearing, visual acuity, color vision, and 2-way written/verbal communication in English. Similarly, Nihon Kohden will continue to administer all other personnel matters (such as compensation, benefits, transfers, layoffs, company-sponsored training, education, tuition assistance, and social and recreational programs) in accordance with Company policy.

Orange, CA30+ days ago

Full-time

The City of Orange includes plenty of natural, undeveloped areas that offer outdoor enthusiasts the opportunity to get outside and explore nature in Orange County with trails for hikers, equestrians, and mountain bikers of all skill levels. About Us:Join our AMETEK IntelliPower team, where we design and deliver high-performance, ruggedized uninterruptible power systems (UPS) and frequency/voltage conversion solutions to safeguard mission-critical operations.

FOUNTAIN VALLEY, CA30+ days ago

MICRONIX USA designs and manufactures miniature, high precision motion equipment for research and industry. We are seeking an Electrical and/or Mechanical Engineering students to support our team of engineers.

Long Beach, CA30+ days ago

To conform to U.S. Government space technology export regulations, including the International Traffic in Arms Regulations (ITAR), Rocket Lab Employees must be a U.S. citizen, lawful U.S. permanent resident (i.e., current Green Card holder), or lawfully admitted into the U.S. as a refugee or granted asylum, or be eligible to obtain the required authorizations from the U.S. Department of State and/or the U.S. Department of Commerce, as applicable. 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 on the James Webb Space Telescope.

Newport Beach, CA30+ days ago

Technical Skills: Proficient in data engineering techniques, skilled in topic modeling and sentiment analysis of unstructured data, experienced in LLM prompt engineering to generate key insights from unstructured data, competence in statistical techniques such as correlation ANOVA, and regression, fluency in Python, SQL, Excel and PowerPoint. + Education: Bachelor’s or Master’s degree in an analytical field like Data Science, Computer Science, Mathematics/Statistics, Business Analytics, Economics, Marketing, Finance, or Social Science.

Carson, CA13 days ago

Interns who demonstrate proficiency in core planning processes, strong communication with management, and successful project delivery will be considered for conversion at the conclusion of the internship term. A Legacy of Success: Dermalogica is the preferred choice of Skin Therapists worldwide, renowned for our exceptional skincare line and industry-leading postgraduate education.

Cerritos, CA30+ days ago

Part-time

ESSENTIAL JOB FUNCTIONS Support customers in the design phase of new products, helping them identify and apply the right solutions Review and interpret customer specifications, providing input on feasibility and potential cost impacts Recommend the best Amphenol-CDI products to meet customer needs, or collaborate with engineering to develop custom solutions Prepare customer-facing drawings, configurations, and specifications to support proposals Gather and share insight on customer applications, working with both sales and engineering to align on solutions Communicate clearly with customers and internal teams about design challenges, manufacturability, and production capabilities Help develop marketing materials, including presentations, literature, and website content Support technical adoption of our products through "design-in" efforts and ongoing customer support Contribute to shared resources, like application notes, presentations, and guidelines Provide input on market and application trends, user feedback, and competitive activity Participate in marketing initiatives such as webinars, tradeshows, or industry publications Collaborate with the broader Applications Engineering team to document best practices and lessons learned May travel occasionally with the Sales team to support technical discussions and presentations (up to 15%) *Other duties as required in support of the department and the company* SUPERVISOR RESPONSIBILITIES Non-Supervisory Role The responsibilities of this role do not include supervising other employees. Bachelor's degree in Mechanical Engineering or a related field, completed or expected prior to start date Strong communication and teamwork skills Ability to interpret technical drawings and specifications Eagerness to learn about interconnect technology and real-world product applications Preferred experience in Environmental Health and Safety role LANGUAGE REQUIREMENTS Excellent verbal and written communication skills in English.

Cypress, CA13 days ago

$16.90–$22.75 Per Hour

However, employees who have access to the compensation information of other employees or applicants as a part of their essential job functions cannot disclose the pay of other employees or applicants to individuals who do not otherwise have access to compensation information, unless the disclosure is (a) in response to a formal complaint or charge, (b) in furtherance of an investigation, proceeding, hearing, or action, including an investigation conducted by the Company, or (c) consistent with the Company’s legal duty to furnish information. If hired, employee will be in an “at-will position” and the Company reserves the right to modify base salary (as well as any other discretionary payment or compensation program) at any time, including for reasons related to individual performance, Company or individual department/team performance, and market factors.

Garden Grove, CA30+ days ago

If a student program that exposes you to exciting projects and potential career paths with one of the country’s largest MEP building systems firms appeals to you and you're ready for the next big step in your career, then JOIN our team and become a part of an organization that values PEOPLE, SAFETY, INNOVATION, COLLABORATION, INTEGRITY, ACCOUNTABILITY & SUSTAINABILITY. At Southland, we view every student as a potential hire and ensure each intern, co-op student, and every new college graduate is truly set up for success to accomplish short and long term career goals.

Irvine, CA13 days ago

$21–$23 Per Hour

PHYSICAL: Generally, may require some reaching, bending, stooping, squatting, crawling, kneeling, pushing, pulling, lifting, carrying up to 20 pounds, finger dexterity, repetitive motions, standing, walking, sitting, hearing, visual acuity, color vision, and 2-way written/verbal communication in English. Similarly, Nihon Kohden will continue to administer all other personnel matters (such as compensation, benefits, transfers, layoffs, company-sponsored training, education, tuition assistance, and social and recreational programs) in accordance with Company policy.

Wilmington, CA30+ days ago

Typical college co-op assignments include the following: troubleshooting system power supply problems, control system programming, hardware and software lifecycle replacement projects, installing and troubleshooting communication networks and monitoring control system performance metrics. The majority of Electrical Engineering co-ops and interns enter into the following positions: Electrical & Instrumentation (E&I) Project Engineers work on a variety of real-world electrical and instrumentation projects in a refinery setting.

Newport Beach, CA30+ days ago

In the U.S., Grant Thornton delivers professional services through two specialized entities: Grant Thornton LLP, a licensed, certified public accounting (CPA) firm that provides audit and assurance services ― and Grant Thornton Advisors LLC (not a licensed CPA firm), which exclusively provides non-attest offerings, including tax and advisory services. With $2.7 billion in revenues and more than 50 offices spanning the U.S., Ireland and other territories, the platform delivers a singular client experience that includes enhanced solutions and capabilities, backed by powerful technologies and a roster of 12,000 quality-driven professionals enjoying exceptional career-growth opportunities and a distinctive cross-border culture.

Irvine, CA21 days ago

$16–$23 Per Hour

At TCL, we are driven by a commitment to innovation in consumer technology, empowering millions worldwide to Inspire Greatness through our award-winning portfolio of home entertainment, audio, mobile, and home comfort solutions. Our internship program is designed for students who want meaningful exposure to how a global organization operates and who are interested in building practical, transferable skills in a professional environment.

Compton, CA30+ days ago

Full-time

Under the tutelage of project managers, senior project managers, assistant construction managers and/or construction managers, complete assigned projects or assist project managers in the completion of projects. Assist project managers in the execution of their essential job functions including but not limited to the completion of pre-remodel checklists and "as built" fixture/refrigeration drawings.

Irvine, California17 days ago

Embodying our commitment to grow, innovate, and diversify, we strive to reimagine the customer and dealer experience and launch innovative new products that broaden our market reach. Must be a graduating college senior, a recent college graduate who will be starting a graduate program in the fall of 2026 or a current graduate student obtaining a Master's degree .

Carson, CA30+ days ago

With the potential to have multiple sessions and opportunities, you will gain valuable real-world experience while enhancing your skill set in the following position: As an MPC VCO intern you will play a role in optimizing business processes through data-driven insights and algorithmic solutions. MPC also owns the general partner and majority limited partner interest in MPLX LP, a midstream company that owns and operates gathering, processing, and fractionation assets, as well as crude oil and light product transportation and logistics infrastructure.

New!

Chino Hills, California4 days ago

$21–$28 Per Hour
Intern

Join GFT, an award-winning architecture, engineering, and construction firm, as a Construction ManagementIntern in our Chino Hills, CA office. Backed by over a century’s experience, together, we’re building a lasting legacy for future generations: stronger communities, a healthier planet, and better lives.

Pasadena, California18 days ago

$24–$25 Per Hour
Intern

Physical Requirements: Stand or Sit(Stationary position), Walk(Move, Traverse), Use hand/fingers to handle or feel (Operate, Activate, Use, Prepare, Inspect, Place, Detect, Position), Talk/hear(Communicate, Detect, Converse with, Discern, Convey, Express oneself, Exchange information), See (Detect, Determine, Perceive, Identify, Recognize, Judge, Observe, Inspect, Estimate, Assess), Reaching, Repetitive Motion Function in the Job: Sedentary Work- Exerting up to 10 pounds of force occasionally, and/or a negligible amount of force frequently or constantly to lift, carry, push, pull or otherwise move objects, including the human body. This entry level internship is designed for college students pursuing a degree in accounting or a related field who are interested in gaining hands on experience in corporate taxation.

New!

Aliso Viejo, CA5 days ago

Core Responsibilities:Onboarding and ContextDevelop a working understanding of the Finance workflows associated with each assigned use case, including data sources, process steps, decision points, and current pain points, through direct observation and structured conversations with the team. NeoGenomics has identified a set of priority use cases where AI can meaningfully improve how our Finance function operates reducing manual work, improving analytical quality, and freeing capacity for higher-value decision support.

Brea, CA30+ days ago

Over 95 years of growth, Curtiss-Wright is an integrated, market-facing global diversified industrial company and remains a technology leader through this legacy of innovation. Agency partners must be invited to participate in a search by our_ _Talent Acquisition Team (TA_COE@curtisswright.com)_ _and have signed terms in place prior to any submittal.

New!

Irvine, California4 days ago

$26–$29 Per Hour
Intern

Backed by more than a century of engineering excellence and 1300+ professionals across the West Coast, we deliver innovative solutions accross four critical sectors: Water Resources, Climate Resliance, Energy Transition and Technology, and Sustainable Transportation. In the event a recruiter or agency submits a resume or candidate without a previously signed agreement, Shimmick explicitly reserves the right to pursue and hire those candidate(s) without any financial obligation to the recruiter or agency.

Fullerton, CA30+ days ago

Full-time

Fullerton, CA30+ days ago

Full-time

To learn more about the way Howmet Aerospace Inc. is advancing the sustainability of our customers, markets, and communities where we operate, review the 2024 Environmental Social and Governance report at www.howmet.com/esg-report . ' The intern will assist cross-functional teams including manufacturing, quality, engineering, planning, and supply chain while developing practical skills in a regulated, fast-paced environment.

New!

Irvine, CA6 days ago

The company’s purpose-built silicon and hardware-agnostic models are being deployed globally to power edge AI speech, audio, sensor and vision applications across a wide range of consumer and industrial use cases, from earbuds to automobiles. The company is backed by several of the world’s leading strategic and financial investors including Intel Capital, Microsoft’s M12, Applied Ventures, Bosch Ventures, the Amazon Alexa Fund, and Atlantic Bridge Capital.

New!

Irvine, CA6 days ago

South Pasadena, CA30+ days ago

The Training Operations Intern will be in-office and will support the Training Department in coordinating loan officer training initiatives, managing training logistics, and assisting with operational tasks that support loan officer development. Support execution of initiatives such as Arive support, Internal/External Training, Power Hour sessions, Learning Management System and additional projects.

Irvine, CA30+ days ago

$25–$30 Per Hour

As a DevOps Intern, you'll build a reference CI/CD pipeline with integrated security scanning (SAST, DAST, container & dependency scanning), automate ASD STIG compliance checks on every commit, and deliver developer‑friendly docs and dashboards. Terran Orbital provides end-to-end satellite solutions by combining satellite design, production, launch planning, mission operations, and on-orbit support to meet the needs of the most demanding military, civil, and commercial customers.

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Intern Jobs in Tustin, CA

Jobs

Student Nurse (Intern)Kaiser Permanente

Summer (June 1 Start) Direct Marketing/Customer Service InternMarriott Vacations Worldwide

Engineering & Maintenance InternDavis Wire

HR InternReveleer

Quality Engineering InternDesign West Technologies, Inc.

Manufacturing Engineering Intern - Cable & HarnessTerran Orbital Corporation

Electrical Test Engineering Intern - EPSTerran Orbital Corporation

Environmental Engineering Intern (Summer 2026!)CDM Smith

Engineering Intern, Part-TimeOlea Kiosks Inc.

Finance InternRisewell Homes

Civil Engineering InternKimley-Horn

Electrical Engineering InternMotive Companies

Product/Test Engineering Summer Intern (May '26 - Aug '26) (Irvine, CA, US)Skyworks Solutions, Inc

Electrical Engineering InternKimley-Horn

Mechanical Engineering InternKimley-Horn

Engineering InternHowmet Aerospace

Electrical Engineering Intern (Summer 2026!)CDM Smith

Intern- Project EngineerSouthland Industries Inc.

Supply Chain Engineering Co-op InternNFI Industries

Software Engineer InternSchneider Electric USA, Inc

Refining Chemical Engineering Intern/Co-op Summer 2026Marathon Petroleum Corporation

Finance InternFlatiron Construction Corp

Electrical Engineering InternMotive Workforce Solutions

Finance/Business Analyst InternNihon Kohden Digital Health Solutions

Software Engineering Intern- AI IntegrationAMETEK, Inc

Engineering InternMicronix USA

Quality Engineering Intern Summer 2026Rocket Lab Corporation

SAP iXp Intern - Data Scientist, Customer and Competitive Market IntelligenceSAP

Intern: Supply PlanningDermalogica LLC

Field Applications Engineer Intern (Temp-to-Hire)Amphenol Cable and Interconnect Technologies Inc.

Healthcare Innovation InternMitsubishi Electric US, Inc.

Intern - Design EngineerSouthland Industries Inc.

Software Engineer InternNihon Kohden Digital Health Solutions

Intern/Co-op - Refining Electrical Engineering - Spring 2026Marathon Petroleum Corporation

Audit IT Assurance Intern - Summer 2026Grant Thornton

[INTERNSHIPS & TRAINING] Summer 2026 Inspire Greatness Intern Program (On-site, Irvine, CA) - UCITTE Technology Inc

Fall 2026 Construction Project Engineer InternKroger

Intern (Irvine, CA)Hyundai Capital America

Intern/Co-op - Value Chain Organization (VCO) (Summer 2026)Marathon Petroleum Corporation

Intern - Construction ManagementGFT.

Tax InternReliance, Inc.

AI Finance Innovation InternNeoGenomics Laboratories

Engineering InternCurtiss-Wright Corporation

Procurement InternShimmick

Quality InternHowmet Aerospace

Manufacturing InternHowmet Aerospace

Embedded Software Engineer InternSyntiant

Model Converter Engineer InternSyntiant

Training Operations InternEquity Smart Home Loans

DevOps InternTerran Orbital Corporation

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