Internships in Hacienda Heights, California, United States

The District Manager in Training leads daily operations of a fast‑food restaurant, driving a 5% sales increase and sustaining growth for two months before expanding to additional locations. Responsibilities include financial performance, team development, operational excellence, and local marketing.

CTE - Student Interns at A.J. Moore Academy works within the Career & Technical Education Office to support hands‑on learning projects for students. The intern assists faculty with curriculum delivery, prepares instructional materials, and helps coordinate classroom activities.

Career & Technical Education Office offers hands‑on experience for students interested in healthcare careers. The Student Intern assists teachers with lesson planning, classroom setup, and student support while gaining exposure to health‑care industry standards.

City of West Covina Planning Department works to guide land use and development across the city. The Planning Intern assists with zoning application reviews, prepares maps and reports, and responds to public inquiries while gaining hands‑on experience in urban planning.

Product Analyst Intern at Maersk Logistics & Services USA Inc. supports data‑driven decision making by building holistic data views and delivering insights through dashboards and reports. Works closely with leadership and stakeholders across the Maersk Contract Logistics product in North America to understand business processes and develop analytics solutions.

Fellowship of Christian Athletes (FCA) interns develop student athletes’ calling to ministry while engaging in a 10‑week immersive discipleship program. The role involves spiritual leadership, prayer, Bible study, and coaching support for athletes and volunteers in Southern California.

Field Chemist II on the DOW SkillBridge program at Republic Services, a partner of the Department of Defense. The role facilitates Lab Pack Program, Household Hazardous Waste (HHW), and other field activities by providing on‑site services for customers, including characterization, packaging, handling, and transportation of wastes.

Public Affairs (SBCTA) supports county transportation initiatives and community outreach. The intern creates and curates digital communications, monitors social media and traditional media, and assists the Public Affairs Analyst with content development and engagement opportunities.

GIS Student Intern at San Bernardino County Transportation Authority (SBCTA) supports the agency’s mission to enhance regional transportation and quality of life. The role involves data collection, editing, and reporting for air quality, mobility, and planning projects, plus assisting with community outreach and inventory control.

Bay Cities Container, an employee‑owned creative packaging partner, seeks a Summer 2026 Intern to support product packaging design and client projects. The role involves collaborating with cross‑functional teams, applying design software, and contributing to packaging solutions that drive sales.

Talent Management internship at Million Dollar Baby Co., the family‑owned children’s furnishings brand focused on sustainable design. Interns support internal and external teams across branding, operations, logistics, sales and analytics, handling customer inquiries, data tasks and cross‑functional projects.

RTX is seeking a Systems Engineering Intern to join the Multidisciplinary Integrated Systems Department in Fullerton, CA. The role focuses on modeling and simulation for space-based systems and satellites, contributing engineering practices to solve complex computational problems. Interns will identify and update circuit card and subassembly designs, and may travel to suppliers.

Volunteer/Internship – Law Student Externship at the Superior Court of Orange County offers law students an unpaid, hands‑on experience in legal research and memorandum drafting. Externs work behind the scenes, supporting judges and clerks with civil, criminal, family, and juvenile matters.

Target is offering a paid 40 hr/week internship for Store Executive Intern (Store Leadership Intern) in Pomona, CA. The role provides hands‑on training to develop leadership skills for the Assistant Store Manager role. Interns will work closely with the Executive Team Lead and other managers, leading daily operations, guest service, merchandising, and team management.

HQ Intern Associate at Niagara Bottling works within corporate functions to support various department projects and operational tasks. The role assists with temporary assignments, cross‑functional collaboration, and problem‑solving while gaining hands‑on experience in a fast‑paced manufacturing environment.

Graybar summer intern will apply classroom knowledge to real-world business scenarios across wholesale distribution. Gain exposure to sales, warehousing, customer service, operations, finance, and more.

RTX invites students to join its Connected Aviation group as a Software Engineer Intern for the summer of 2026. Based in Fullerton, California, the role is on‑site and offers hands‑on experience in developing the Wide‑Area Augmentation System (WAAS) for the FAA. Interns will design, code, test, and document new or modified software, collaborating with developers, testers, release engineers, and cross‑disciplinary teams such as systems and hardware.