Internship Jobs in Hacienda Heights, CA
Uline
Ontario, CA
As a Uline Outside Sales Intern, spend your summer working alongside sales professionals with the best training, tools and products to win in the field every day. Coordinate and conduct one-on-one customer visits providing business solutions from our world-class website and catalog stacked with 43,000+ quality products.
Medical Sales Recruiting
$60000 - $75000
Irvine, CA
INTERNSHIP OVERVIEW: As critical members of the team, interns will spend the first six months building phone skills and answering questions from prospective students while learning all about Medical Sales College. In the second half of the internship, interns will contribute to the promotion and growth of Medical Sales College by sourcing new sales opportunities through inbound lead follow-up and outbound phone calls, emails and texts.
Shawmut
$22 - $25
Los Angeles, CA
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.
Cardinal Health
Ontario, CA
To be considered for the Cardinal Health Summer 2026 Internship Program, candidates should meet a combination of the following criteria: Currently pursuing a bachelor’s degree in Business Administration, Logistics, Management, Supply Chain, Operations Management, or related field, preferred. Interns participate in social, team-building, and community service events designed to build a strong peer network and enrich the overall internship experience.
Talley LLP
Orange, CA
Talley, LLP, and its affiliated entities, Talley Law Group, LLP (“TLG”), Talley Capital Group, LLC (“TCG”) and Talley Client Accounting Services, LLC (“TCAS” fka Group 11) (collectively “Talley”) is a full service financial, tax, legal and consulting organization designed to meet the needs of entrepreneurially driven businesses and their owners. Talley, LLP and its affiliated entities (Talley Law Group, Talley Capital Group, and Talley Client Accounting Services) provide full-service financial, tax, legal, and consulting solutions tailored to entrepreneurially driven businesses and high-net-worth individuals.
SPECTRUM
El Segundo, CA
You’ll gain hands-on experience managing real social media content, learn how analytics and audience insights drive engagement, and develop your creative voice while working alongside experienced digital and communications professionals. This summer internship offers the opportunity to collaborate with teams to develop engaging social media content, grow online audiences, and contribute to digital storytelling across platforms.
Million Dollar Baby Co.
$23 - $30
Pico Rivera, CA
At Million Dollar Baby Co., our team members are our #1 priority, and we partner with exceptional partners and retailers around the world who share our core values: • Treat Your Team Like Family — lead with respect, gratitude, empathy, and kindness. Over the years, our commitment to people, innovation, and a positive workplace culture has earned us five consecutive "Best Place to Work" awards, one of the best workplaces by "Built in LA", a 4.6 rating on Glassdoor, and 13 years on the Inc.
Million Dollar Baby Co.
$23 - $30
Los Angeles, CA
At Million Dollar Baby Co., our team members are our #1 priority, and we partner with exceptional partners and retailers around the world who share our core values: • Treat Your Team Like Family — lead with respect, gratitude, empathy, and kindness. Over the years, our commitment to people, innovation, and a positive workplace culture has earned us five consecutive "Best Place to Work" awards, one of the best workplaces by "Built in LA", a 4.6 rating on Glassdoor, and 13 years on the Inc.
TTE Technology Inc
$16 - $23
Irvine, CA
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.
The Boeing Company
$21.15 - $30.77
El Segundo, CA
Millennium Space Systems also provides eligible employees with an opportunity to enroll in a variety of benefit programs, generally including health insurance, flexible spending accounts, health savings accounts, retirement savings plans, life and disability insurance programs, and a number of programs that provide for both paid and unpaid time away from work. The intern will improve and expand upon our growing in-house mod and sim capabilities while gaining experience in orbital mechanics, orbit determination, maneuver planning, rendezvous, constellation design, coverage analysis, and cislunar modeling.
TRL11, Inc.
Irvine, CA
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.
PIH Health
$21
Whittier, CA
The fully integrated network is comprised of PIH Health Downey Hospital, PIH Health Good Samaritan Hospital, PIH Health Whittier Hospital, 37 outpatient medical office buildings, a multispecialty medical (physician) group, home healthcare services and hospice care, as well as heart, cancer, digestive health, orthopedics, women’s health, urgent care and emergency services. The organization is nationally recognized for excellence in patient care and patient experience, and the College of Healthcare Information Management Executives (CHIME) has identified PIH Health as one of the nation’s top hospital systems for best practices, cutting-edge advancements, quality of care and healthcare technology.
Amwins Internships
$20 - $21
Irvine, CA
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.
The Boeing Company
$21.15 - $30.77
El Segundo, CA
Millennium Space Systems also provides eligible employees with an opportunity to enroll in a variety of benefit programs, generally including health insurance, flexible spending accounts, health savings accounts, retirement savings plans, life and disability insurance programs, and a number of programs that provide for both paid and unpaid time away from work. Millennium Space Systems, a Boeing Company, is a Drug Free Workplace (DFW) where post offer applicants and employees are subject to testing for marijuana, cocaine, opioids, amphetamines, PCP, and alcohol when criteria is met as outlined in our policies.
Surfline\Wavetrak, Inc.
Los Angeles, CA
We provide those who work and play in the ocean with all the advanced tools, personalized insights and immersive content to make their lives better -- supplying them with the information they need to make smarter decisions, seek out new experiences and gain valuable knowledge. . Internships are open only to candidates residing in the United States who have valid authorization to work in the U.S. Internship participation should align with the student’s academic program or field of study .
Dress A Med
Los Angeles, CA
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.
Freeform
Los Angeles, CA
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.
Freeform
Los Angeles, CA
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.
CMD Electric
$18 - $25
Ontario, California
Overview: CMD Electric is a leading electrical subcontractor specializing in delivering high-quality electrical services for residential, commercial, and industrial projects. The Project Engineer Intern position will assist and support multiple Project Managers and Superintendents in coordinating and managing electrical construction projects.
SPECTRUM
El Segundo, CA
Beyond our connectivity solutions, we also provide local news, programming and regional sports via Spectrum Networks and multiscreen advertising solutions via Spectrum Reach. Gain exposure to the control room, learn from editors, and understand pre- and post-production for the Los Angeles Dodgers and Los Angeles Lakers.
AXS Group LLC
Los Angeles, CA
Since our founding in 2011, we’ve consistently pushed the industry forward and improved experiences for fans, making it easier than ever to discover events, find the perfect seats, and enjoy unforgettable live entertainment. Get hands-on experience working closely with our product, design and engineering teams to deliver best-in-class fan experiences for AXS web and mobile properties.
Rivian
$33 - $51
Irvine, California
Rivian
$33 - $51
Irvine, California
Rivian
$33 - $51
Irvine, California
Rivian
$33 - $51
Irvine, California
Brilliant
Los Angeles, CA
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.
SciTec
El Segundo, CA
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.
Entrepreneur Cooperative
Los Angeles, CA
This internship is designed for students who understand that LinkedIn is a long-term career asset and are open to guided, strategic growth in exchange for real-world experience and compensation. We do not take over accounts without transparency you will approve positioning and strategy, retain full ownership of your LinkedIn profile, and be able to leverage the expanded network for your future career.
Retrofete Inc.
Los Angeles, CA
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.
Edwards Lifesciences
$64000 - $82000
Irvine, CA
Must have knowledge of and experience working with statistical regression models, such as linear regression, logistic regression, generalized linear models, survival and longitudinal analysis. If hired into a covered role, as a condition of employment, you will be required to submit proof that you have been vaccinated for COVID-19, unless you request and are granted a medical or religious accommodation for exemption from the vaccination requirement.
Aerotek
Irvine, California
Individual compensation offered for this position within this range will depend on many factors, including qualifications, skills, relevant experience, job knowledge, geographic location, internal equity, and other pertinent job-related factors." . We work with 95% of Fortune 500 companies and specialize in staffing and services solutions in manufacturing, logistics, construction, aviation, facilities and maintenance.
Kirkhill Inc.
Brea, CA
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.
IQAir North America, Inc.
La Mirada, CA
They assist with messaging strategy, draft and refine materials, including blog and other website content, and help develop product- or department-specific press and promotional content, gaining hands-on experience in professional marketing communications. Assist in drafting and editing copy for the Marketing Content Team, including blog articles, landing pages, emails, FAQs, and corporate announcements.
Anderson Sport and Wellness
Newport Beach, CA
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).
Healthpeak Properties, Inc.
Irvine, CA
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.
Reyes Coca-Cola Bottling
DOWNEY, California
CAIR LA
Anaheim, CA
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.
Veritas Veterinary Partners
Tustin, CA
Veritas Veterinary Partners offer exciting career opportunities in state-of-the-art facilities across the U.S. Our hospitals, open 24/7/365 and staffed by board-certified specialists, create a collaborative environment where you can work alongside like-minded, caring professionals. The Rotating Internship at AVSG Internal Medicine, Emergency, & Critical Care/VSSOC offers a comprehensive, fully mentored clinical education program with a robust introduction to Small Animal ER, Internal Medicine, and Surgery.
Space Kinetic
$25 - $30
El Segundo, CA
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.
Friendly Franchisees Corporation
Van Nuys, CA
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.
88Rising, Inc.
$18 - $20
Los Angeles, CA
With a roster of internationally recognized artists and a growing global footprint, we operate at the intersection of music, culture, and innovation, developing impactful campaigns that resonate far beyond traditional genre or geographic lines. The Artist Development Intern will assist the A&R, Marketing, Digital Marketing, and Artist Management teams, gaining a broad understanding of how the music industry operates from an Indie Label.
Hiefo Corporation
Alhambra, CA
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.
Dreamscape Learn
Culver City, CA
This is an excellent opportunity for a student or recent graduate to gain hands-on experience in human resources and people operations while contributing to a growing organization. Current student or recent graduate in Human Resources, Business Administration, Psychology, Communications, or related field .
Exverus Media
$18
Los Angeles, CA
Explore diverse fields like Strategic Planning, Media Buying (Traditional, Social, Search, eCommerce, Programmatic), Analytics, and Ad Operations. We were recently named AdWeek’s Breakthrough Agency of the Year, which we credit to our mission to continuously innovate, evolve and bring the best ideas to our clients.
Vicious Buzz
Los Angeles, CA
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.
Reyes Coca-Cola Bottling
IRVINE, California
Toll Brothers, Inc.
$20 - $22
Irvine, CA
In this role, the Assistant Construction Manager Intern will assist in the supervision of all on-site construction, including the scheduling of sub-contractors on the job, resolving day-to-day problems on the job site, and inspecting all work during construction to ensure compliance with plans and specifications. Other responsibilities of the intern may include obtaining all permits necessary to construct houses, ordering all materials required to construct houses, and working with the Assistant Construction Manager, Construction Manager, and Project Manager to set up and monitor the construction schedule.
AGI General Contracting
$20 - $25
Santa Ana, CA
AGI General Contracting (AGI) is a commercial general contracting firm that was founded in 1978 and has successfully completed projects in a wide range of industries, from grocery stores and retail developments to medical facilities, restaurants, and theme parks. The Intern will be involved in virtually all aspects of project management procedures and functions, including but not limited to: Learn how to review and process submittals and assist in obtaining and distributing submittals to key stakeholders.
Northwestern Mutual
$500 - $1000
Huntingtn Bch, California
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.
Johns Hopkins Applied Physics Laboratory
El Segundo, California
We are seeking an intern with a background in electrical, computer, software, space systems engineering, or similar fields to demonstrate their skills on multidisciplinary teams working on a variety of technological innovations in defense and national security applications. Are accustomed with agile and scrum software development principles, including software project and configuration management tools to perform issue tracking, automated unit testing, continuous integration, and version control tools (e.g.