159 Results for

Summer Jobs in Diamond Bar, CA

Jobs

Aliso Viejo, 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.

Los Angeles, CA14 days ago

li>All staff receive a training pay rate for hours worked prior to the start of camp, which includes all online training and set up day; the training rate $18.42 per hour.

At least 1 year (or camp season) experience working in summer camp, school, childcare, tutoring, coaching kids, after-school programs, or related fields.

Laguna Woods, CA30+ days ago

Camp Counselors will help create a fun, safe, and engaging environment for students through structured activities, games, STEAM projects, and enrichment experiences. Creative STEAM Academy is hiring energetic and responsible Seasonal Summer Camp Counselors to join our team for an exciting 6-week summer program!

Aliso Viejo, CA30+ days ago

Temporary

Los Angeles, California17 days ago

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THE SKATESIDE is one of Southern California's leading youth skateboarding programs, serving thousands of children through camps, lessons, school programs, and community events.

As a Summer Camp Counselor, you will help create a safe, fun, and supportive environment where campers learn skateboarding skills, build confidence, make friends, and stay active throughout the summer.

Los Angeles, California17 days ago

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As a Summer Camp Counselor, you will work directly with children in a fun, structured, and supportive environment while helping campers improve their skateboarding skills and confidence.

Become part of THE SKATESIDE team and help us continue our mission:

MORE KIDS SKATING.

Compensation: $20.00 per hour

Los Angeles, California17 days ago

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As a Summer Camp Counselor, you will help create a fun, safe, and encouraging environment where campers develop skateboarding skills, confidence, friendships, and a love for being active outdoors. Through guided instruction and mentorship, kids develop essential life skills like problem-solving, perseverance, and self-discipline—all while having fun in a safe, supportive environment.

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.

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.

Aliso Viejo, 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.

Ontario, CA30+ days ago

We're looking for someone w ho: • Is currently studying or has interest in one of the following program areas; Early Childhood Education, Child & Youth Care, Recreation and Leisure Services, Ontario College of Teachers programs or other relevant diploma or degree programs • Demonstrates experience in promoting self -care, fostering personal growth, and providing uplifting mentorship to girls and gender -diverse youth. Programs Summer Camp Assistant Date Posted: May 8, 2026 Hourly Rate: $19.20 Location: 2439 10 Side Rd, Milton ON 410 Bronte Street South, Milton ON Hours: 35 hours/week Reports To: Supervisor , Empowerment Programs Number of Vacancies: 1 Position Type: Seasonal Contract - July and August Why work for Milton Community Resource Centre?

Rancho Cucamonga, CA30+ days ago

$18–$20

As a Swim Instructor, you'll teach essential swimming skills, instill confidence, promote a love for swimming, and ensure a safe and supportive learning environment. In this role, you'll provide high-quality swim instruction to individuals or groups, focusing on water safety, stroke development, and overall aquatic skills in Rancho Cucamonga.

Irvine, CA30+ days ago

$20–$26 Per Hour

We are changing the game by providing high quality and regularly scheduled supervisory support which help you make a difference in your clients’ lives. Additionally, we’re looking for someone who values work-life balance and want to make meaningful changes to people’s lives in a transparent and rewarding environment.

Irvine, California30+ days ago

40 hours of Sick Leave per Year.

· Full Time Employees Receive:

o 2 weeks of PTO per year

o 7 annual paid holidays (including personal/mental health days)

o 401 (k)

. o 2 paid mental health days (full time employees, 1 paid mental health day for part time employees)

· Company issued iPad to access digital data collection and internal resources.

· Career advancement and promotion opportunities in as little as 6-months!

Los Angeles, California14 days ago

The California Actors Workshop is seeking an experienced and inspiring acting instructor to join our summer faculty for one or two-week conservatory-style programs for middle-school or high school students.

CA30+ days ago

p>Required qualifications, capabilities, and skills:

• Attend college/university in the U.S. • Minimum cumulative GPA of 3.2 on a 4.0 scale • Expected graduation date of December 2027 through June 2028 from a bachelor's or master's program • If you are pursuing a master's degree, it must be completed within 2 years of your bachelor's degree • To be eligible for this program, you must be authorized to work in the U.S. We do not offer any type of employment-based immigration sponsorship for this program.

You'll have the chance to:

• Learn about risk at a premier global investment bank • Develop skills to thoroughly assess and evaluate risks • Understand the role of integrity and transparency in dealing with regulators, clients, and business stakeholders • Collaborate across the organization to solve problems proactively, including inquiries from clients, regulators, and stakeholders.

Los Angeles, CA30+ days ago

Compensation and Benefits: • Engineering Intern/Undergraduate: $30/hour • Engineering Intern/Masters: $32.50/hour • Engineering Intern/PhD: $35/hour • Relocation assistance provided • Free daily catered lunch and dinner, and fully stocked kitchenette • Casual dress, flexible work hours, and regular catered team building events. 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.

Irvine, CA30+ days ago

You'll make an impact by: • Working on financial models to support financing transactions • Preparing marketing materials for use in client meetings (covering topics such as financing alternatives, working capital optimization, and industry analysis) • Learning how to identify treasury product solutions to benefit clients' long-term planning • Collaborating with deal teams regarding business development strategy, including the identification of potential prospects • Developing an understanding of the full breadth of J.P. Syndicated Finance Group Analysts support the origination, structuring, pricing, negotiation, and distribution of loan syndications for Middle Market and Commercial Real Estate clients in North America by collaborating on debt transactions-including financial modeling, cash flow analysis, term sheet development, credit and capital market presentations-preparing offering and marketing materials for investors, and working with credit professionals on transaction legal documentation.

Newport Beach, CA30+ days ago

Originally known for leadership in enterprise resource planning (ERP) software, SAP has evolved to become a market leader in end-to-end business application software and related services for database, analytics, intelligent technologies, and experience management. As a cloud company with two hundred million users and more than one hundred thousand employees worldwide, we are purpose-driven and future-focused, with a highly collaborative team ethic and commitment to personal development.

Orange, CA30+ days ago

$19–$22 Per Hour

Under direct supervision, Summer Interns participate in a ten-week professional development program designed to provide hands-on, entry-level experience aligned with the student's major field of study and the sponsoring department's business operations. Interns gain real-world exposure to OCTA operations and the transportation industry while contributing to meaningful projects and learning from experienced professionals.

Fountain Valley, CA20 days ago

$30–$33 Per Hour

Maxim Healthcare Services is hiring Licensed Vocational Nurses (LVNs) throughout Orange County to provide personalized care for pediatric and adult patients in the comfort of their homes. We offer private duty nursing, skilled nursing, physical rehabilitation, companion care, respite care and behavioral care for individuals with chronic and acute illnesses and disabilities.

Irvine, CA30+ days ago

$45–$60 Per Hour

With a decade-long track record of deploying solutions in the field, winning DARPA challenge segments, and bringing expertise from organizations like DeepMind, NASA JPL, Boston Dynamics, NVIDIA, Amazon, Tesla Autopilot, Cruise Self-Driving, Zoox, Toyota Research Institute, and SpaceX, we are set to achieve our ambitious goals. This internship emphasizes building tightly integrated learning-based systems that connect low-level locomotion with high-level planning, translating research into practical, deployable capabilities for real-world robotics.

CA30+ days ago

p>As a Summer Analyst in the 2027 Asset Management Product Program, you will collaborate with industry experts to develop investment solutions for institutional investors, mutual funds, ETFs, and other large-scale clients-including corporations, governments, and not-for-profit organizations-worldwide.

Global Liquidity: We help clients invest within a range of currencies, risk levels, and durations, including taxable and tax-free money market funds, short-term fixed income funds, and separately managed accounts.

CA30+ days ago

li>Take the driver's seat at an early-stage company, helping Nominal grow, onboarding new customers, and expanding its product offerings, while contributing to our mission of accelerating the testing and validation landscape for complex hardware systems.

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.

Los Angeles, CA14 days ago

li>All staff receive a training pay rate for hours worked prior to the start of camp, which includes all online training and set up day; the training pay rate $18.42 per hour.

Lead Design Challenges and Outdoor Activities:

Facilitate Galileo's innovative, project-based curriculum, integrating science, technology, engineering, and math for groups of up to 28 campers.

Riverside, CA30+ days ago

Full-time

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). Applicants 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).

Riverside, CA30+ days ago

Full-time

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).

Los Angeles, CA22 days ago

$79,000–$115,000 Per Year

p>Responsibilities:

Analyze competitive industry dynamics and financial condition of peer companies, evaluate business plans, adjust financial statements and build financial models including discounted cash flow analyses, capital asset pricing model, market multiples methods and replacement cost valuation approaches.
Demonstrated quality service mindset, strong technical aptitude, ability to learn and navigate technologies such as artificial intelligence (AI), Alteryx and Power BI, MS Office Applications including Excel, PowerPoint, Word and Outlook and apply emerging technologies to enhance tax processes and insights.

Pasadena, CA27 days ago

The UVEX Research Group in the Division of Physics, Mathematics & Astronomy is seeking a summer student assistant to provide general laboratory, organizational, and project support for activities related to the Ultraviolet Explorer (UVEX) mission and associated astrophysics research. The student will assist with laboratory organization, data entry, documentation, inventory tracking, and administrative support for research and engineering activities in a collaborative scientific environment.

Irvine, CA30+ days ago

$20.52–$34.20 Per Hour

Intern's complete real projects-root‑cause analysis, SPC, value‑stream mapping, Kaizen events, supplier support, and internal audits-gaining practical experience with quality systems and continuous‑improvement methods.

By joining our Engineering Internship program, you will become a valued member of our team - tackling challenging issues, delivering truly impactful results, and providing you the opportunity to grow both technically and personally through practical working experience.

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.

Pasadena, CA19 days ago

A primary focus of the internship will be exploring how Artificial Intelligence can be leveraged to improve the efficiency and effectiveness of technology transfer operations, including invention disclosures, patent prosecution, interactions with outside law firms, licensing activities, billing, royalty distributions, and related processes. Currently enrolled undergraduate, graduate, or recent graduate in a relevant field (e.g., engineering, computer science, data science, business, law, or related discipline).

Irvine, CA30+ days ago

$26–$47.50 Per Hour

Responsibilities • Explore and Analyze: Dive into ATE test data generate insightful summary reports and help uncover trends and conclusions that drive product decisions • Solve Real Problems: Support customer return analysis by submitting test requests reviewing results and contributing to root cause investigations • Drive Quality: Assist in product qualification and reliability data analysis working closely with IC and module design teams to understand product behavior and performance • Automate and Innovate: Script process steps to streamline data automation and contribute to exciting automation and AI initiatives that shape the future of engineering at Skyworks. Required Experience and Skills Must be currently enrolled in a Bachelors/M.S. program studying Electrical Engineering Must be willing and able to work Jun - December 2026 onsite in our Irvine office The candidate should have strong data analysis skills and should be able to navigate Microsoft office applications such as Word, Excel, and PowerPoint Excellent communication skills both written and verbal.

Pasadena, CA19 days ago

KISS is organizing the "A New Era of Space Science: Actionable and Affordable Mission Plans" Symposium in partnership with the Brinson Exploration Hub (July 28-30) that will bring together experts from science, engineering, and the commercial space sector to develop credible low-cost Moon and Mars mission concepts. Under the direction of the KISS Executive Director, the summer intern will support three areas of KISS activity during a busy and exciting summer season: a major three-day symposium in late July, impact assessment analysis for KISS programs, and supporting a website content migration project.

Irvine, CA30+ days ago

$20.52–$34.20 Per Hour

Key responsibilities include conducting time and motion studies, cell layout and flow, assisting value stream tracking centers, and taking ownership of lean tool deployment on assigned projects to foster a culture of continuous improvement. Working with some of the most brilliant minds in the industry, your contributions will be pivotal in developing innovative technologies and products, significantly contributing to Parker's goal of addressing the world's most pressing engineering challenges.

Los Angeles, CA22 days ago

Across both campuses, students experience a unified Catholic, Marianist vision of education that fosters faith-filled learning communities, encourages academic rigor, and prepares graduates to lead with integrity, empathy, and hope in a complex and changing world. For more than seven decades, Chaminade has been a community where students are known personally, challenged intellectually, and inspired spiritually to become the men and women God calls them to be, leading lives of purpose and compassion.

Irvine, CA30+ days ago

$18.42–$30.70 Per Hour

The intern will map current-state workflows from Purchase Requisition (PR) creation through Purchase Order (PO) placement and supplier acknowledgment, identify the "happy path" plus top exceptions, and propose a practical future-state with measurable service levels and a pilot plan. Headquartered in Irvine, California, the Military Flight Controls Division is the global leader in fly-by-wire flight control systems and electrohydraulic products and offers the world''s most advanced motor design capabilities for flight controls.

Los Angeles, CA30+ days ago

For the first time in history, this influx of payload companies combined with reduced launch costs has resulted in a massive increase in need for commercial spacecraft platforms, known as satellite buses. Youll be working on improvements to our Microcontroller devices being utilized in space and writing embedded software for new hardware components that will be the building blocks of our future spacecraft!

Los Angeles, CA30+ days ago

Irvine, CA30+ days ago

$26–$47.50 Per Hour

p>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.

Pay Range The 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.

Los Angeles, California30+ days ago

For more information on PULLMAN Los Angeles, please refer to PULLMAN Los Angeles’ website page: Pullman Services Los Angeles | PULLMAN.

About the Role:
If you are seeking a challenging and rewarding construction internship opportunity with a dynamic, diversified and innovative company, a PULLMAN Project Engineer Internship may be for you!

Irvine, CA30+ days ago

$20.52–$34.20 Per Hour

We are the preferred supplier of flight control solutions for the commercial, regional, business jet, and advanced air mobility marketplace by offering a premier customer experience with superior engineered products that exceed our customer and regulatory requirements. Working with some of the most brilliant minds in the industry, your contributions will be pivotal in developing innovative technologies and products, significantly contributing to Parkers goal of addressing the worlds most pressing engineering challenges.

Irvine, California14 days ago

Join us and gain direct access to leaders across various departments, collaborate with innovative minds, and contribute to projects that make a real impact!

Summer 2026 Internship Program

At Viant, we will offer a personalized unique experience for our interns that mimics what it’s like to actually work with us. We’re excited to offer hands-on Summer 2026 internships at our Irvine headquarters, where you’ll have the chance to apply your skills, learn from industry experts, and contribute to impactful projects.

Our engineering internship provides an opportunity to dive into real-world challenges, collaborate with talented teams, and grow your technical abilities.

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.

New!

Pomona, CA2 days ago

Lavner Education, one of the world's leading EdTech companies for kids, powers the Lavner Camps, Tech Revolution, Lavner IQ, Lavner Prep, and Lavner Fitness brands, offering year-round camps, classes, tournaments, and online tutoring to kids worldwide. By embracing the concept that kids should love what they do and have the opportunity for high-quality live, interactive learning, we create cutting-edge learning experiences that feature top-notch curricula and great staff, all backed by a dedicated and mission-driven leadership team.

Irvine, California24 days ago

The Summer Intern will assist the Events Manager and Napa Institute team with event coordination, administrative projects, attendee communications, vendor support, and onsite conference execution.

The Napa Institute is seeking a highly organized, enthusiastic, and mission-driven Summer Intern to support the Events team during preparation for the Napa Institute Summer Conference and other key organizational events.

New!

Los Angeles, CA3 days ago

$100,000–$120,000

p>A Fortune 500 technology company (representative of our employer network) is hiring a Corporate Development Analyst to support M&A sourcing, transaction evaluation, strategy development, and partnership analyses.

This Corporate Development Analyst posting is an example of the roles inside our private job board — premium strategy & M&A positions that Career Launch AI members get exclusive access to.

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.

Los Angeles, CA10 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 Diamond Bar, CA

Summer Day Camp Counselor-Intern KE Camps

Substitute Summer Camp Counselor, Southern California Galileo Learning LLC

Summer Camp Counselor CREATIVE STEAM

Summer Day Camp Counselor KE Camps

Skateboard Summer Camp Counselor - Santa Monica The Skateside

Skateboard Summer Camp Counselor - Glendale The Skateside

Skateboard Summer Camp Counselor - South Pasadena The Skateside

Summer Camp Unit Head JCCs of North America

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

Summer Day Camp Director KE Camps

She Can! Programs Summer Camp Assistant Milton Community Resource Centre

Summer Swim Instructor Premier Swim Academy - Rancho Cucamonga

ABA Positions! Hiring ASAP for summer! Part Time Behavior Technicians! POP THERAPIES INC

ABA Positions! Hiring ASAP for summer! Part Time Behavior Technicians! Pop Therapies

Acting Instructor - Summer 2026 Education Unlimited

2027 Commercial & Investment Bank Risk Management Summer Analyst Program JPMorgan Chase & Co

Process Engineering Internship/Co-Op Summer/Fall 2026 Freeform Future Corp

2027 Commercial & Specialized Industries Summer Analyst Program JPMorgan Chase & Co

SAP iXp Summer Intern - Business AI Research [Newport Beach, CA] SAP SE

Summer Intern, CAMM Orange County Transportation Authority

LVN - Summer Opportunity Maxim Healthcare Services Inc

Robotics Research Internship-Locomotion & Planning (Summer 2026) Field AI Inc

2027 Asset Management Product Summer Analyst Program JPMorgan Chase & Co

Software Engineer - New Grad (Summer 2026) Nominal Inc

Substitute Summer Instructor, Southern California Galileo Learning LLC

Summer 2026 Human Resource Intern Supply Chain - Riverside Kroger Co.

Summer 2026 Human Resource Intern Supply Chain - Riverside Kroger Supply Chain

Summer 2026 Maintenance Intern- Supply Chain Kroger Co.

Associate, Economic Valuation Services - Valuation | Los Angeles Summer/Fall 2026 KPMG International Cooperative

Summer Research Assistant California Institute of Technology

Summer - Quality Engineering Internship - (SSO Division, Location: Irvine, CA) Parker Hannifin Corp

Product Engineering Co-Op Summer/Fall Skyworks Solutions Inc

OTTCP Summer Intern California Institute of Technology

Product Engineering Summer/Fall Co-Op Skyworks Solutions Inc

KISS Summer Intern California Institute of Technology

Lean Engineering Intern (Summer 2026) - Fluid Systems Division Parker Hannifin Corp

Information Technology Summer Intern CHAMINADE COLLEGE PREPARATORY

Supply Chain Intern - Summer 2026 - Military Flight Controls Division Parker Hannifin Corp

Software Engineering Internship, Embedded Systems (Summer 2026) Apex Technology Inc.

SAT Instructor - Summer 2026 Education Unlimited

RF IC Design Team Summer/Fall Co-Op (June - Dec 2026) Skyworks Solutions Inc

Summer 2026 Construction Project Engineer Internship PULLMAN Los Angeles Pullman

About the Role: If you are seeking a challenging and rewarding construction internship opportunity with a dynamic, diversified and innovative company, a PULLMAN Project Engineer Internship may be for you!

Summer Intern Tech Engineering (Irvine, CA) Parker Hannifin Corp

UCI Career Fair - Summer 2026 Internship Viant Technology

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

STEM Camp Director - Summer Position Lavner Education

Summer Intern The Napa Institute

Corporate Development Summer Analyst Career Launch AI

Investment Banking Summer Analyst Career Launch AI

Private Equity Senior Summer Associate Career Launch AI

Resume Resources

About the Role:
If you are seeking a challenging and rewarding construction internship opportunity with a dynamic, diversified and innovative company, a PULLMAN Project Engineer Internship may be for you!