103 Results for

Summer Jobs in Westchester, CA

Jobs

Los Angeles, CA13 days ago

Full-time
Employee

Want to live in the mountains for the summer and/or fall season (short-term living accommodations available on-site for $170/week if you are from outside the area, that includes: dormitory style rooms, utilities, internet, laundry, 3 daily buffet style meals). You’ll help create a welcoming, comfortable stay for guests by keeping cabins, lodge rooms, and shared spaces clean and ready.

Rancho Palos Verdes, CA7 days ago

$20,800–$20,800.01 Per Year
Full-time
Employee

SPIRIT AND UNDERSTANDING: By accepting employment with The Salvation Army, you acknowledge that The Salvation Army is a church, agree to do nothing to undermine its religious mission and acknowledge that your conduct must not conflict with or undermine the religious program of The Salvation Army Camp Arnold, or its religious and moral purposes. Health Insurance: Low bi-weekly premiums ($34.62) for employee only coverage, Kaiser HMO for those residing in a Kaiser service area, Anthem EPO/PPO is available for those residing outside of a Kaiser service area.

Rancho Palos Verdes, CA7 days ago

$18,200–$18,200.01 Per Year
Full-time
Employee

Health Insurance: Low bi-weekly premiums ($34.62) for employee only coverage, Kaiser HMO for those residing in a Kaiser service area, Anthem EPO/PPO is available for those residing outside of a Kaiser service area. Parental Leave: Benefit will be one week (5 business days) of paid leave at the employee's normal rate of pay for births, adoptions and foster placements.

Thousand Oaks, CA30+ days ago

Temporary

As a Camp Counselor, you will be an active participant in all camp activities and will assist your Camp Director with a variety of daily tasks, all with the goal of creating a memorable and meaningful camp experience for your campers. We partner with over 230 private clubs all over the country to implement traditional-style day camps for elementary-aged children.

Thousand Oaks, CA30+ days ago

Temporary

UCLA, CA30+ days ago

The Site Director is probably our most rewarding and challenging camp position, and we believe that having a positive, organized, and effective camp director helps to create memorable and deeply enriching camp experiences for our students. Site Directors will begin planning camp programs in early spring and will live on-campus (lodging, meals, and parking provided) during program dates.

West Hollywood, CA28 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.

Los Angeles, CA20 days ago

Chaminade is an independent co-educational Catholic school serving approximately 2,000 students in grades 6-12 at our two beautiful campuses located in the San Fernando Valley area of Los Angeles. The Summer Camp Teacher is responsible for providing leadership, oversight and support to the Chaminade Center for Excellence Summer Program while ensuring the overall well-being and safety of the campers and the activities in the program.

Los Angeles, CA30+ days ago

$19–$23 Per Hour

We host a variety of programs for the community, including an early childhood center, basketball leagues and classes, swim lessons, summer and winter day camp, fitness classes, family holiday programs, teen leadership and Israel programs, senior wellness and adult programs. Through specialty tracks, enrichment activities, and community-building programming, JCamp fosters creativity, confidence, connection, and a vibrant, inclusive Jewish community.

North Hills, CA30+ days ago

$19–$20

This will include supporting a summer Youth Leadership Program (1-week) as well as Camp CapAbility (4-weeks)- an inclusive summer camp for students with disabilities. Assist with planning and running summer programming activities, including games, creative projects, pre-employment activities, site visits, and group discussions.

Costa Mesa, CA30+ days ago

Temporary

As you manage campers, their families, club logistics, your small staff team and other camp happenings, you will be truly supported by the KE Camps Year-Round Office all the way. Our Camp Directors have real ownership over their camp programs and enjoy infusing their own creativity and talents into their weekly schedules.

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

Our summer programs include public speaking camps, college admissions prep programs, science camps, summer acting camp, writing camps, computer camp, leadership camp, video production camp, and college tours. The Personal Statement/College Counseling Instructor is responsible for guiding students through two components of our College Admissions Prep Camp Instruction: First, they will help each student complete 1-2 longer or several shorter personal statement responses so that are ready or nearly ready for submission with their college applications.

UCLA, CA30+ days ago

Mock Trial participants will work with a lead instructor (typically a practicing attorney or an instructor with personal experience and expertise in competitive mock trial) to learn the structure of the court systems, differences between the process of law involved in civil and criminal trials, and most importantly proper methods of the formation and presentation of convincing legal arguments. Our summer programs include public speaking camps, college admissions prep programs, science camps, summer acting camp, writing camps, computer camp, leadership camp, video production camp, and college tours.

New!

Seal Beach, CA6 days ago

Administer first aid in the event of injury, rescue swimmers in distress or danger of drowning, and administer CPR and/or artificial respiration, if necessary . We partner with over 230 private clubs all over the country to implement traditional-style day camps for elementary-aged children.

Los Angeles, CA22 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.

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).

New!

Torrance, CA6 days 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.

Santa Monica, CA30+ days ago

If hired, you will work in person in a schooled-aged camp setting to provide supervision, care, program delivery, and services per Steve & Kate's Camp and Bright Horizons’ policies, procedures and guidance, in compliance with any applicable laws and regulations, and in a manner that will ensure the safety of children in Steve & Kate's Camp's care and the employee. Physical RequirementsThis position requires the employee to comply with all applicable federal, state, local, Steve & Kate's Camp, Bright Horizons’, and client site requirements concerning immunizations, employment physical/screening, and health and safety training.

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

Our summer programs include public speaking camps, college admissions prep programs, science camps, summer acting camp, writing camps, computer camp, leadership camp, video production camp, and college tours. The primary responsibility of the SAT or PSAT Instructor is to guide students through the Education Unlimited SAT curriculum in a classroom setting and to motivate and encourage students to improve their test-taking abilities.

Los Angeles, CA21 days ago

LocationStartEndUC BerkeleyJun 21, 2026Jun 27, 2026UC BerkeleyJun 28, 2026Jul 3, 2026Stanford UniversityJul 5, 2026Jul 11, 2026UCLAJul 12, 2026Jul 18, 2026OnlineJul 13, 2026Jul 17, 2026Stanford UniversityJul 26, 2026Aug 1, 2026Education Unlimited seeks energetic and experienced neuroanatomy instructors for our fun, activity-based summer programs. This course is interactive, uses videos and images and, most importantly, includes hands-on activities such as building model systems using Play-doh or Model Magic, dissecting a sheep brain, and engaging in lab activities and demos in order to explore neuroanatomy from a variety of viewpoints.

West Coast College Tour, CA30+ days ago

Our summer programs include public speaking camps, college admissions prep programs, science camps, summer acting camp, writing camps, computer camp, leadership camp, video production camp, and college tours. The Tour transforms this experience into an enriching and exciting summer adventure, in which students participate in campus tours, meet with admissions representatives, and receive materials to help evaluate each school.

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.

New!

Gardena, CA6 days ago

Provisional Exception: Candidate may be hired in advance of obtaining the above certifications provided they will be registered into a YMCA Lifeguard V6 course within 30 days of hire, have participated in an interview, and passed the pre-employment skills assessment. Demonstrate the Six Pillars of Character (Trustworthiness, Citizenship, Respect, Responsibility, Caring, Fairness) as well as the YMCA Core Values of Caring, Respect, Honesty and Responsibility in all dealings with members, guests, volunteers and fellow staff.

Los Angeles, California15 days ago

Overview: We’re seeking a talented, self‑motivated undergraduate for a 10‑week summer internship, 40 hours/week, to support our Communications team in developing social media strategy and content, with a primary focus on TikTok. This role will directly interact with key internal partners to create content, report on current social trends, and interact with the loyal Califia Farms audience, while helping to attract and engage new ones.

San Fernando, CA30+ 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.

Studio City, CA30+ days ago

We are seeking motivated and enthusiastic individuals who are eager to learn and dedicated to helping our team in providing exceptional services to children diagnosed with autism who are receiving ABA intervention at our beautiful learning center. Learning and Development: Take advantage of countless learning opportunities throughout the internship period and and gain valuable skills and knowledge about developmental learning challenges, treatment assessment and intervention, practice management, health care, and administrative functions.

Irvine, CA30+ days ago

Remote

Pacvue is seeking an Engagement & Development Summer Intern to support key HR initiatives, including building Confluence resources, enhancing our internal employee learning platform (LearnUpon), and contributing to employee development programs. Focus: Build/organize HR Confluence pages, support the expansion of HR L&D content, and provide overall support on ongoing Engagement initiatives.

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.

Los Angeles, CA30+ days ago

Arrowhead is leading the field in bringing the promise of RNAi to address diseases outside of the liver, and our clinical pipeline includes disease targets in the liver and lung with a promising pipeline of preclinical candidates. Using a broad portfolio of RNA chemistries and efficient modes of delivery, Arrowhead therapies trigger the RNA interference mechanism to induce rapid, deep, and durable knockdown of target genes.

Los Angeles, CA8 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.

Santa Monica, CA30+ days ago

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, CA12 days ago

Note: This position reports to our office in Marina Del Rey, CA and we are not currently looking to hire for any remote positions. This candidate is a self-starter with a passion for marketing, as well as excellent organizational and time-management skills.

Garden Grove, CA30+ days ago

You’ll be an essential part of our dynamic workforce as an independent contractor, ready to respond and commute to on-site work opportunities at nearby K-12 schools and nonprofits via the BrightBee app. Instructors also receive ongoing coaching and periodic refresher training (a few hours each semester) to ensure confidence in classroom delivery and continued program quality.

Agoura Hills, CA26 days ago

$25.50–$47 Per Hour

Teradyne’s Semiconductor Test Division at our Agoura Hills, CA facility is looking for an intern to partner with our engineers and participate in the design of high-speed (> 1 Gbps) ICs or high-power, high-voltage ICs for ATE (Automatic Test Equipment) instruments. ATTENTION APPLICANTS WITH DISABILITIES: If you’re unable to access our on-line application due to a disability you may visit one of our locations or our Corporate Office at 600 Riverpark Drive, North Reading, MA and request a paper application form.

Hawthorne, CA13 days ago

$25–$35

This role combines fun, learning, and creativity as you guide young children through interactive activities that introduce basic concepts of health, medicine, and science in an engaging and age-appropriate way. As a Summer Camp Instructor, you will lead themed activities inspired by the Little Medical School curriculum alongside our ongoing sports and enrichment programs.

New!

Torrance, California6 days ago

$22–$40 Per Hour

In this position individuals will support and learn from a number of different groups working production, development, continuous improvement, testing and equipment automation for Traveling Wave Tubes (TWTs), Electronic Power Conditioners (EPCs) and Microwave Power Modules (MPMs). Responsibilities: Manufacturing / Industrial Engineering: Concentrated support of a specific assembly and process, ideal with a goal for improved touch time, yield, automation or similar.

Los Angeles, California22 days ago

$26–$29 Per Hour

Manhattan Beach, CA30+ days ago

Assist with industry and target company research; Participate in direct outreach to target companies; Shadow calls with target company management and assist in company analysis; Support and shadow day-to-day Business Development operations; Work within our proprietary systems to assist with data uploading and cleanliness; Support current team members in various responsibilities, as assigned. High intellectual curiosity and strong people skills; Self-starter; ambitious; team-oriented; Exemplary communication and relationship skills (verbal and written); Entrepreneurial spirit with a positive attitude; Preferred (first generation college students are encouraged to apply).

Irvine, CA30+ days ago

Remote

The Product Marketing Intern will support growth initiatives for Helium 10 Ads by helping execute high priority marketing programs and gathering insights that improve adoption. Pacvue's internship program runs across two 9-week cohorts, and candidates may choose the option that best fits their schedule: Cohort 1 (May 18 – July 17) or Cohort 2 (June 15 – August 14).

Irvine, CA29 days ago

$26–$47.50 Per Hour

Currently enrolled in an Electrical Engineering (or related) BS, MS or PhD program• Commitment to work onsite for 6 months from June/July to December 2026• Strong desire to learn, grow, and make an impact• Strong career interest in analog circuit design• Willing to share knowledge and collaborate with others• Must have experience with Microsoft Word, Excel, PowerPoint, and Outlook• Experience with Cadence Virtuoso and SPICE is highly preferred• Exposure to lab tools such as Oscilloscope, Function Generator, Multimeter etc.#LI-DJ1The typical pay range for an Engineering intern across the U.S. is currently USD $26.00 - $47.50 per hour and for a Non-Engineering intern across the U.S. is currently USD $22.50 - $42.00 per hour. In this Analog IC Design Summer/Fall Co-Op opportunity at Skyworks, you will learn and participate in developing advanced, state-of-the-art RF front-end modules, working with seasoned engineering professionals and collaborating with subject matter experts within Skyworks.

Irvine, CA30+ days ago

$26–$47.50 Per Hour

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. The candidate will support activities that contribute to making forward looking decisions with the demand plan and communicates those decisions to stakeholders including Supply Chain, Marketing, and our external customers.

Irvine, CA30+ days ago

$26–$47.50 Per Hour

This position includes responsibility for both development and sustaining activities: • Explore and Analyze: Dive into ATE test data, generate insightful summary reports, and help uncover trends and conclusions that drive product decisions. 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.

New!

Irvine, CA6 days ago

$26–$47.50 Per Hour

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. Develop new algorithms or improve existing ones using programming languages such as Python and other visual programming tools such as Knime or Alteryx or Microsoft SSIS .

New!

Irvine, CA6 days ago

$26–$47.50 Per Hour

We are looking for a Supply Chain & Demand Management Summer/Fall Co-Op to join the team in Irvine, CA, for a 6-month period starting in June 2026 and ending in December 2026. The candidate will support activities that contribute to making forward looking decisions with the demand plan and communicates those decisions to stakeholders including Supply Chain, Marketing, and our external customers.

New!

Irvine, CA1 day ago

$26–$47.50 Per Hour

Please note: If you have already graduated and are not currently enrolled in school, you are not eligible for this Co-Op position.#LI-DNIThe typical pay range for an Engineering intern across the U.S. is currently USD $26.00 - $47.50 per hour and for a Non-Engineering intern across the U.S. is currently USD $22.50 - $42.00 per hour. 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.

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.

Los Angeles, CA8 days ago

$270,000–$400,000

A leading middle-market or upper-middle-market private equity firm is seeking a Senior Associate or VP to drive deal execution, diligence, and portfolio management. Private Equity Senior Associate / Vice President – Career Launch AI Network.

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Summer Jobs in Westchester, CA

Housekeeping Staff (Summer and/or Fall 2026). Live and Work in the Colorado Rockies YMCA of the Rockies

Summer Night Shepherd/ Program Aide -$400/week The Salvation Army Northwest Division

Summer Office Assistant - $350/week The Salvation Army Northwest Division

Summer Day Camp Counselor-Intern KE Camps

Summer Day Camp Counselor KE Camps

Site Summer Camp Director - UCLA - 2026 Education Unlimited

Summer Internship - Influencer & Celebrity Relations BPCM

Summer Camp Teacher (Internal Candidates Only) Chaminade College Preparatory

Summer Camp Unit Head JCCs of North America

Youth Services- Summer Counselor (Temporary/ Seasonal) New Horizons, Serving Individuals with Special Needs

Summer Day Camp Director KE Camps

Summer 2025 Engineering Internship TRL11, Inc.

Personal Statement Writing Instructor/College Counselor - Summer 2026 Education Unlimited

Mock Trial Instructor Summer Camp 2026 Education Unlimited

Summer Day Camp Lifeguard KE Camps

Wonderful Scholar Summer Internship, Agency The Wonderful Company

Summer 2026 Maintenance Intern- Supply Chain Kroger Co.

Summer 2026 Mechanical Engineering Internship Castelion

Summer Camp Counselor - Santa Monica Steve & Kate's Camp

Construction Finance - Summer Internship Shawmut

SAT Instructor - Summer 2026 Education Unlimited

Neuroanatomy Instructor Summer 2026 Education Unlimited

College Tour Group Leader - Summer 2026 Education Unlimited

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

Seasonal Summer Lifeguard (3064) YMCA

Social Media Summer Intern Califia Farms, LLC

Summer Internship BrightView Landscapes

2026 Summer Intern (Non-Paid) FirstSteps for Kids, Inc.

Engagement & Development Summer Intern Pacvue

Revenue Operations Analyst Summer Intern Pacvue

Summer Intern, Medical Publications & Communications Arrowhead Pharmaceuticals

Investment Banking Summer Analyst Career Launch AI

Summer Camp Substitute Counselor - Santa Monica Steve & Kate's Camp

Rotation Summer Internship Kirkhill Inc.

Marketing Intern - Summer 2026 Boys Lie

Summer Camp Group Leader with Rainbow Chef's Academy BrightBee Inc.

Analog and Mixed Signal ASIC Design Intern, Summer 2026, (Teradyne, Agoura Hills, CA) Teradyne

Little Medical & Vet School Summer Camp Instructor Super Soccer Stars

Engineering Summer Intern Stellant Systems

Student Architectural Intern | Summer 2026 - Los Angeles Aviation Corgan

Intern, Business Development (Summer 2026) K1

Product Marketing Summer Intern Helium 10

Analog IC Design Summer/Fall Co-Op (June '26 - Dec '26) (Irvine, CA, US) Skyworks Solutions, Inc

Supply Chain & Demand Management Summer/Fall Co-Op (Irvine, CA, US) Skyworks Solutions, Inc

Product Engineering Summer/Fall Co-Op (Irvine, CA, US) Skyworks Solutions, Inc

Digital Supply Chain Summer/Fall Co-Op Skyworks Solutions

Supply Chain & Demand Management Summer/Fall Co-Op Skyworks Solutions

AI & Machine Learning Summer/Fall Co-Op (June '26 - Dec '26) (Irvine, CA, US) Skyworks Solutions, Inc

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

Private Equity Senior Summer Associate Career Launch AI

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