58 Results for

Internship Jobs in Westchester, CA

Jobs

Los Angeles, CA17 days ago

$18.50–$20 Per Hour

The company has a long-standing commitment to corporate social responsibility, including more than $1 billion invested in environmental sustainability; $65 million in charitable giving, education initiatives, and innovative health and wellness programs each year; and $143 million toward the construction of two charter school campuses in California’s Central Valley. Ranked No. 1 on the 2025 PEOPLE® Companies That Care list and one of Fortune® magazine’s “100 Best Companies to Work For” in the U.S., The Wonderful Company is continually recognized for its dedication to the well-being of its workforce, their communities, and the planet.

West Hollywood, CA23 days ago

As an intern, you’ll support clients across diverse industries—including Fashion, Beauty, Corporate Communications, Sustainability, Auto, Travel, Wine & Spirits, and Lifestyle—while learning the ins and outs of agency life. With offices in LA, NYC, and London, BPCM is a fully integrated global agency offering services in VIP & influencer relations, strategic consulting, affiliate marketing, partnerships, corporate communications, and press-worthy events.

Irvine, CA30+ days ago

$20–$21 Per Hour

That's why our internship program is designed to give you real-world experience, meaningful projects, and a chance to explore the insurance industry from the inside out. You won't be fetching coffee — you'll be building skills, making connections, and discovering what a career in risk management and insurance could look like for you.

Irvine, CA30+ days ago

TRL11 is a venture backed deep tech / defense tech startup bringing cutting-edge video technology to Aerospace applications. Summer internships typically cover a wide range of disciplines, including mechanical, electrical, optical, manufacturing, software, and test engineering.

Los Angeles, CA30+ days ago

Branded Content: Creates sponsored content with brand partners, combining creative ideas and strategy to deliver impactful campaigns across video, social, and live experiences. Unscripted: Creates formats, series, and documentaries that spotlight greatness across sports, music, and entertainment, including MegaCasts like the Emmy Award-winning ManningCast for ESPN2.

New!

Torrance, CA1 day ago

Castelion is bringing a new approach to defense development and production: one that focuses on short, iterative design cycles, rapid testing in development, and modern commercial manufacturing strategies for production at scale. ITAR Requirements:To conform to U.S. Government export regulations, the applicant must be a (i) U.S. citizen or national, (ii) U.S. lawful, permanent resident (green card holder), (iii) Refugee under 8 U.S.C. § 1157, or (iv) Asylee under 8 U.S.C. § 1158, or be eligible to obtain the required authorizations from the U.S. Department of State.

New!

Torrance, CA1 day ago

Castelion is bringing a new approach to defense development and production: one that focuses on short, iterative design cycles, rapid testing in development, and modern commercial manufacturing strategies for production at scale. To conform to U.S. Government export regulations, the applicant must be a (i) U.S. citizen or national, (ii) U.S. lawful, permanent resident (green card holder), (iii) Refugee under 8 U.S.C. § 1157, or (iv) Asylee under 8 U.S.C. § 1158, or be eligible to obtain the required authorizations from the U.S. Department of State.

Los Angeles, CA30+ days ago

$22–$25 Per Hour

We’ve been honored as a National Fortune Best Workplace, a Fortune Best Workplace for Women, Millennials, and Parents, and one of America’s Best Employers by Forbes—along with numerous regional recognitions across our 11 offices nationwide. Placement within the listed range depends on many factors, including, but not limited to, years of experience, project size capability (for Construction & Field roles), and internal company equity.

Los Angeles, CA30+ days ago

You'll collaborate with mechanical, software, and simulation engineers to analyze large in-situ data sets and post-print material characteristics, contributing to rapid iteration and continuous improvement of the printing technology using data-driven and machine-learning-enabled approaches. Assist the Process Engineering team in developing a deep understanding of the metal additive process and hardware operation by analyzing massive in-situ data sets to gain insight into physical mechanisms of the printing process.

Los Angeles, CA30+ days ago

Open for applications from excellent candidates who are seeking career paths in fashion advertising, consumer products and/or marketing. Our summer internship program is highly competitive as nearly 1k applications are received across the United States for 8 spots.

Brea, CA30+ days ago

Kirkhill, Inc. a wholly-owned subsidiary of Transdigm, is a leading diversified manufacturer of highly engineered, organic, and in-organic elastomer based products. Optimize all aspects of manufacturing process by identifying opportunities and applying simpler, faster, more cost effective and reliable methods in all phases of manufacturing process.

Los Angeles, CA30+ days ago

Remote

What We Do: Brilliant is in its second decade as a fully remote company and is one of the most respected agencies serving consumer lifestyle brands with a specific focus on products, brands, and services for families including baby and maternity, toys and games, tech, housewares, and food. Brilliant PR & Marketing, one of the most respected and rapidly growing agencies focused on family-oriented brands, seeks a REMOTE Social Media Intern, 15 hours a week to help support the agency’s growing, award-winning team for the upcoming semester.

Encino, California30+ days ago

Intern

Compton, CA30+ days ago

Full-time

The Sales Internship Program is designed for students interested in growing their sales expertise, working with industry professionals, and making a positive impact in the environmental services industry. The intern will be responsible for tasks associated with building business, as well as developing and maintaining strong customer relationships within multiple lines of business.

Los Angeles, CA30+ days ago

$18.50–$18.50

The intern will lead a drop-in program at the Skirball exhibition Inventing America: The Comic Book Revolution, hand-drawing comic style sketches and interacting with museum visitors in this unique arts education experience. This expansive exhibition looks at the characters and stories from comics that have defined America's perception in the public consciousness, and how the industry's creators brought their own cultural backgrounds and personal experiences to bear in their work .

Fullerton, CA10 days ago

$2,600–$4,000 Per Month

This is a paid internship opportunity for people who are energetic, organized, reliable, and ready to learn valuable experience in direct sales, marketing, communication, and leadership. Looking for motivated students and ambitious individuals who want real-world experience, professional growth, and the opportunity to build strong business skills.

Los Angeles, CA30+ days ago

$18.50–$18.50

The institution's Public Programs department seeks an apprentice with a love of performing arts to participate in programmatic development and execution of music, literary arts, theater, dance, film and other live, public-facing events. This position requires regular collaboration with various departments at the Skirball, strong interpersonal skills, a keen ability to listen and respect for limited hierarchy created especially to maintain a fast-moving production schedule.

Burbank, CA22 days ago

Rental interns will have the opportunity to learn the rental process from quote to check-in, get hands on experience with as much equipment as possible, work alongside with AC’s on the checkout floor and acquire enough familiarity to be comfortable renting and prepping gear on future jobs and film projects. An internship with AbelCine will allow aspiring students to apply classroom skills in a stimulating real-life workplace and to gain insight into the inner workings of production.

Los Angeles, CA30+ days ago

We are looking for a motivated, hard-working, fashion-savvy, detail-oriented college student or recent graduate who is eager to learn and gain valuable experience in a small agency environment. Our internship program is a very unique and exciting experience, as you will learn ALL facets of a multi-line showroom including pitching, marketing, merchandising, and more.

Anaheim, CA30+ days ago

Interns will receive basic training in all aspects of CAIR's work but will be assigned a focus project in one of the following areas: Youth Empowerment: Interns assist with implementing CAIR's youth programming with a focus on the issues of identity, civil rights, civic engagement, and social justice. The internship program provides a means to complement academic work with practical vocational experience through professional development and department support that identifies skills, develops leadership, and addresses critical community needs.

El Segundo, CA30+ days ago

SciTec values military experience and has a variety of opportunities for transitioning service members as part of the DoD Skillbridge program at all of our operating locations (Princeton, NJ; Boulder, CO; El Segundo, CA; Huntsville, AL; Dayton, OH). SciTec, Inc. is a dynamic small business with the mission to deliver advanced sensor data processing technologies and scientific instrumentation capabilities in support of National Security and Defense.

Hollywood, CA23 days ago

We’re passionate about helping homeowners upgrade their homes with sustainable energy solutions that save money and make a lasting impact on the planet. We’re looking for motivated, outgoing, and growth-oriented individuals who want to gain hands-on experience in sales, communication, and leadership.

Hollywood, CA30+ days ago

HousBuildrs is a rapidly growing solar company transforming how clean energy is delivered across the U.S. We’re offering a hands-on internship program designed for those who want to learn the real-world skills needed to thrive in the solar industry — and earn a full-time role upon successful completion. Real-world experience in the fastest-growing sector in the U.S. 1-on-1 mentorship and weekly skill-building sessions.

Beverly HIlls, CA23 days ago

HouseBuildr is offering a paid internship designed for college students and young professionals who want to gain real-world experience in sales, communication, and leadership — skills that will set you apart in any career. Motivated learners who want to grow personally and professionally.

New!

Van Nuys, CA1 day ago

This is a paid internship for individuals who want to grow into leadership and eventually manage-or even own-their own business one day. If you're ready to build your career and learn how successful businesses are run, this internship is the perfect place to start.

New!

Sylmar, CA1 day ago

Mason offers world-class control devices and subsystems - such as control grips, throttles, and communications interfaces - for today's advanced cockpits, military vehicles, and other specialized applications. Physical DemandsWhile performing the duties of this job, the employee is regularly required to, stand, sit; talk, hear, and use hands and fingers to operate a computer and telephone keyboard / Operate machinery.

New!

Los Angeles, CAToday

Reporting directly to the Chief Operating Officer (COO), the intern will engage in learning-focused projects that build professional skills in the context of PACE Business’s work serving small, minority-owned, women-owned, and veteran-owned businesses across Los Angeles. This is an unpaid internship designed to provide a high-performing college student with structured, educational exposure to executive-level operations, strategic planning, and organizational management within a mission-driven nonprofit.

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Burbank, CA1 day ago

Since the Walt Disney Company's establishment in 1923, the studios have expanded to offer a full range of production and post-production services, including the sound stages of the 1950s and the digital imaging technologies of the 1990s. Walt Disney Studios may be best known for introducing Mickey Mouse in 1928, but it has also made countless other entertainment milestones.

Alhambra, CA30+ days ago

This internship program offers a unique opportunity to gain hands-on experience, develop professional skills, and contribute to meaningful projects within our dynamic organization. ResponsibilitiesAssist with various projects and tasks across different departments, such as marketing, operations, or product development.

New!

Sylmar, CA4 days ago

New!

Los Angeles, CA2 days ago

Remote

This internship lasts 1 to 6 months, offering exposure to all aspects of web development, including building and redesigning websites, collaborating with design teams, and optimizing for performance. Join a globally-focused team environment and contribute to meaningful projects while developing essential skills for your career.#J-18808-Ljbffr.

El Segundo, CA30+ days ago

$25–$30 Per Hour

Ability to work with minimal direction or support and to learn quickly; strong analytical skills; creative and innovative thinking; detail-oriented; calm under pressure; commitment to follow-through; enthusiastic with a talent for motivating others; receptive to criticism and open to others' ideas; and effective in written communication. To conform to U.S. Government export regulations, applicant must be a (i) U.S. citizen or national, (ii) U.S. lawful, permanent resident (aka green card holder), (iii) Refugee under 8 U.S.C. § 1157, or (iv) Asylee under 8 U.S.C. § 1158, or be eligible to obtain the required authorizations from the U.S. Department of State.

Irvine, CA30+ days ago

Part-time

We exist to transform technology into a revenue‑generating arm of the real estate business, building products and platforms that directly support our tenants, partners, and the teams who serve them every day. Strong technical problem-solving skills, including practical experience with data structures, storage systems, cloud infrastructure, front-end frameworks, and related technologies.

New!

Los Angeles, CA4 days ago

Fueled by passion and entrepreneurial spirit, our people bring new ideas to solvethe world's mostchallenging problems, like designing amoreresilient, inclusive, and equitable future for our communities and cities. Support Communications Managers, Internal Communications Specialist, Presentation Designers with a variety of both internal and external communications and marketing projects .

Los Angeles, CA30+ days ago

Using first-principles thinking, you will help define test methods, evaluate solutions, iterate quickly, and synthesize information from engineering drawings, in-situ machine data, post-processing results, and inspection data to draw conclusions that improve printing and downstream machining processes. As an Additive Engineering Intern at Freeform, you will contribute to the development and scaling of our advanced metal 3D printing processes, including design for additive manufacturing (DFAM) feedback, print file preparation, toolpath automation, part quality analysis, and end-to-end process improvement.

Hollywood, CA30+ days ago

$5,000–$8,000

Top-performing setters are promoted into closing roles or team leadership, where income and impact can scale rapidly. If you’re passionate about helping people and confident in your ability to engage — this is your foot in the door to a high-earning solar career.

Los Angeles, California21 days ago

$500–$1,000 Per Year
Intern

Our college financial representatives, who come from varying academic backgrounds and experiences, begin to build a financial planning practice while engaging local and nationwide experts, exclusive financial products, and the support of a Fortune 500 company. Overview: College Financial Representatives in the internship program at Northwestern Mutual are provided guidance, connection, and a framework for building an integrated financial planning practice from the ground up.

Irvine, CA30+ days ago

$20–$30

Actual compensation details will be provided in writing at the time of offer, if applicable, and is based on several factors we believe fairly and accurately impact compensation, including geographic location, experience, knowledge, skills, abilities, and other job permitted factors. If you are contacted by anyone claiming to represent us using a free email service (e.g., Gmail, Yahoo, Hotmail) or asking for payment, please treat this as fraudulent and report it immediately to HR@zymoresearch.com.

New!

El Segundo, CA1 day ago

ITAR RequirementsVarda, like all employers, must ensure that its employees working in the United States are lawfully authorized to work in the U.S. Additionally, our employees are exposed to and have access to certain export-controlled items. Varda was founded in January 2021 by Will Bruey and Delian Asparouhov with significant backing from world class investors including Khosla Ventures, Lux Capital, Founders Fund, Caffeinated Capital, General Catalyst, and Also Capital.

San Fernando, CA28 days ago

Full-time

You might be a good fit if you are: Pursuing a bachelors or associates degree in any areas of Horticulture such as the following: Landscape Architecture, Civil Engineering, Construction Science, Construction Management, Agriculture-Business, Landscape Design or Plant Science. Project Coordination – Working with a Project Manager, manage document control including change orders, billings, field production tracking, purchasing documentation and contract administration.

Irvine, CA30+ days ago

$54,000–$72,000 Per Year

Current enrolled at an accredited university for the duration of the Internship project pursuing a Bachelor’s degree in Environmental Health and Safety, Environmental Sciences, Occupational Health and Safety, Chemical Engineering, Industrial Engineering, Environmental Science, or a related field. + Day‑to‑day work includes reviewing air quality data, conducting gap and applicability assessments, tracking corrective actions, maintaining documentation, and supporting verification activities.

Newport Beach, CA30+ days ago

Oversee key business functions (under mentorship): Leverage team to track revenue, patient data, and leads; respond to inquiries within 24 hours; scrutinize expenses; maintain systems with IT support; audit systems and processes, and ensure compliance with regulations. We are a premier holistic PT clinic in beautiful Newport Beach, specializing in orthopedic manual therapy, chronic pain relief, sports recovery, and personalized wellness (including MELT Method, Pilates, and free community workshops).

Los Alamitos, CA30+ days ago

Proactively research and identify new opportunities via outbound efforts utilizing university relationships, word of mouth, LinkedIn, social media platforms, networking, direct referrals, etc. Shall not misrepresent the nature of the school, facility, programs, expected outcome of training, employment, salary expectations, etc. in any way, either directly or indirectly, implied or omitted.

Los Angeles, CA30+ days ago

Intern will sit in ideation meetings for clients to help formulate best practices and strategy for said client. - Intern will assist on brand activations, experiential marketing and digital initiatives and press campaigns.

Los Angeles, CA30 days ago

Our members — needle-moving tier-1 founders, executives, and athletes — use Aurora to navigate travel, health, dining, experiences, and premium goods with the kind of judgment that used to require a team of people who'd known you for years. You will work directly with senior team members across operations, member experience, and partnerships — gaining real exposure and meaningful responsibility from day one.

Los Angeles, CA30+ days ago

$185,000–$200,000 Per Year

A leading global investment management firm is seeking an experienced Senior Manager to lead early talent program management and campus recruiting across the U.S. This is a high-impact role responsible for shaping Analyst, Associate, and Summer Internship programs while partnering closely with investment teams and senior stakeholders. This individual will play a critical role in building diverse, high-performing talent pipelines and delivering best-in-class candidate and employee experiences.

New!

Los Angeles, CA3 days ago

$100,000–$150,000

If you're pursuing a career in Investment Banking, Private Equity, Capital Markets, or Corporate Finance, this role represents the type of accelerated opportunity we help you land — faster, with personalized recruiter outreach and AI-powered support. This Investment Banking Analyst role is an example of real opportunities available inside the Career Launch AI Private Job Board, which includes: Exclusive roles from employers who recruit directly through Career Launch AI.

La Habra, CA30+ days ago

Full-time

From one tiny Cincinnati grocery store more than a century ago, we've grown into what today is the nation's largest grocer with nearly 2,800 stores in 35 states operating under 28 different names. Applicants for employment in the US must have work authorization that does not now or in the future require sponsorship of a visa for employment authorization in the United States and with Kroger Co (i.e., H1-B visa, F-1 visa (OPT), TN visa or any other non-immigrant status).

Irvine, California30+ 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 .

Irvine, CA30+ days ago

Remote

Success by the end of the internship will be demonstrated by improved CRM data accuracy, streamlined case routing processes, contributions to revenue initiatives, and the intern's ability to independently manage assigned operational tasks. Support CRM data integrity initiatives, including ensuring contracts are accurately attached and reflected within SFDC opportunities to maintain reporting accuracy and revenue visibility.

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Internship Jobs in Westchester, CA

Wonderful Scholar Summer Internship, Agency The Wonderful Company

Summer Internship - Influencer & Celebrity Relations BPCM

Access Insurance Internship Amwins Internships

Summer 2025 Engineering Internship TRL11, Inc.

2026 Internship Program Omaha Productions

Summer 2026 Mechanical Engineering Internship Castelion Corporation

Summer 2026 Mechanical Engineering Internship Castelion

Construction Finance - Summer Internship Shawmut

Process Engineering Internship/Co-Op (Summer/Fall 2026) Freeform

Dress A Med - Fashion Marketing & Advertising - Paid Internship Dress A Med

Rotation Summer Internship Kirkhill Inc.

Social Media Internship | Fall 2026 Brilliant

Internship - Real Estate Brokerage Matthews Real Estate Investment Services, Inc

Sales Representative Internship Clean Harbors

Superhero Sketching Internship Skirball Cultural Center

Paid Internship – Direct Sales & Marketing Representative (Fullerton, CA & Surrounding Areas) Ark Mgt

Public Programs Internship Skirball Cultural Center

Rental Internship - Los Angeles - Summer 2026 AbelCine

Public Relations Internship Retrofete Inc.

Internship CAIR LA

DoD Skillbridge Internship for Transitioning Military Service Members SciTec

Sales Internship – Solar & Home Improvement (LOS ANGELES PEOPLE ONLY) Housebuildr Inc

High Ticket Marketing & Sales Internship (LIVES IN/NEAR LOS ANGELES ON Housebuildr Inc

Paid Internship– Learn Sales, Leadership (located in Los Angeles ONLY) Housebuildr Inc

Entrepreneurship Internship Carl's Jr. (Paid) Friendly Franchisees

Mechanical Manufacturing Design Internship Mason Electric

Executive Internship 2026 PACE

Disney Animation Studios Internships vault

HieFo Internship Hiefo Corporation

Mechanical Manufacturing Design Internship Mason Controls

Remote Web Developer Internship Real Projects, Mentorship Corporate Web Solutions

Internship- Information Technology Space Kinetic

Forward Deployed Software Engineer Internship Healthpeak Properties, Inc.

Student Internship - Communications and Marketing Gensler

Additive Engineering Internship/Co-Op (Summer/Fall 2026) Freeform

Renewable Energy Internship Program (LIVES IN/NEAR LOS ANGELES ONLY) Housebuildr Inc

College Financial Representative, Internship Program Northwestern Mutual

Computational Internship for Undergraduate & Graduate Students Zymo Research Corporation

Mechanical Engineering Internship - Fall 2026 Varda Space Industries

Summer Internship BrightView Landscapes

Environmental Health and Safety (EHS) Internship, Summer 2026 Edwards Lifesciences

Business Operations Management Internship Anderson Sport and Wellness

Medical Device Sales - Paid Internship Medical Sales College

Internship, Music Publicist at Vicious Buzz Vicious Buzz

Curator Internship AURORA

AVP, Early Career Recruitment & Talent Strategy | Global Investment Management Recruiting Resources, Inc.

Investment Banking Summer Analyst Career Launch AI

Summer 2026 Maintenance Intern- Supply Chain Kroger Co.

Intern (Irvine, CA) Hyundai Capital America

Revenue Operations Analyst Summer Intern Pacvue

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