Internships in Wilmington, California, United States

An engaging internship for Chemical Engineering students, offering hands‑on experience across refinery operations, process optimization, environmental compliance, and product economics. Interns work with experienced engineers, develop critical thinking, and enhance presentation skills while contributing to real projects that improve refinery performance.

An exciting career awaits you at Marathon Petroleum. As a Chemical Engineer intern/co‑op, you will become familiar with process equipment fundamentals and best practices, build critical thinking skills, and gain an understanding of how all engineering disciplines work together as a cohesive team.

FNS, INC’s internship program invites students to join the Human Resources team in Carson, CA, where they will support talent acquisition, onboarding, and employee engagement initiatives. Interns will collaborate with HR partners to streamline recruitment processes, assist in benefits administration, and contribute to workforce analytics projects.

Expeditors is a global logistics company that recruits, trains, and retains logistics and technical experts, promoting from within. This full-time Distribution Customer Service Intern supports daily distribution operations by assisting with shipment processing, operational data entry, customer service, and billing functions.

Expeditors is a global logistics company that recruits, trains, and retains logistics and technical experts, with over 50% of its 18,000+ employees staying five years or more. This Distribution Customer Service Intern supports daily distribution operations by assisting with order processing, inventory management, receiving, shipping, data entry, and customer service.

College Financial Representatives in the internship program at Northwestern Mutual build an integrated financial planning practice from the ground up while engaging local and nationwide experts, exclusive financial products, and the support of a Fortune 500 company. Day-to-day, you prospect and network, develop and execute a business strategy, call on potential clients to set meetings, prepare plans and recommendations, gain exposure to proprietary planning software, and participate in weekly co

Northwestern Mutual College Financial Representatives Internship program builds future financial planners through mentorship, networking, and hands‑on experience. Interns prospect clients, develop business strategies, and prepare financial plans while receiving weekly coaching and licensing support.

Audit Internship – Winter 2027 at HCVT offers a hybrid learning experience for accounting students. Interns join audit engagement teams to document and execute audit procedures, manage project timelines, and ensure efficient client information flow.

Odys Aviation builds safe, sustainable aircraft to halve travel time. As a Robotics & Embedded Systems Intern, you’ll join the UAV team to assemble, integrate, and test autonomous platforms.

True Anomaly seeks Propulsion and Fluids Test Interns to support spacecraft propulsion and fluid systems test operations. You will work alongside propulsion test engineers, fluids engineers, and test technicians to execute test campaigns for propulsion hardware and fluid systems, gaining hands-on experience with rocket propulsion testing, fluid systems, test instrumentation, and data analysis in a fast-paced startup environment.

KPFF Special Projects Group in Long Beach, California is seeking a Junior or Senior level Civil Engineering student for a summer internship focused on heavy civil, structural, industrial, and waterfront infrastructure projects. The intern will assist a civil engineer with project design tasks such as calculations, plan production and review, and cost estimating, while also supporting project site visits and field inspections.

Odys Aviation builds safe, sustainable aircraft to halve travel time on busy corridors. As a Systems Engineering and Integration Intern, you’ll support definition, architecture, integration, and testing of a novel aircraft system.

Shimmick seeks a motivated Field Engineer Intern to support projects across Southern California. The role involves applying engineering techniques, preparing calculations and drawings, assisting with field inspections, and contributing to construction administration.

KPFF's Special Projects Group in Long Beach, California, is seeking a Structural Engineering Intern for a summer internship. The role supports civil, design-build transportation, structural, industrial, and waterfront infrastructure projects across the West Coast.

HCVT seeks a State and Local Tax Intern for Summer 2027 to support tax return preparation, research, and client engagement across diverse industries. Interns will work hybrid in Irvine or Long Beach, applying accounting knowledge, software skills, and communication to deliver quality service while gaining exposure to complex tax issues.

Antcom, part of Hexagon Autonomous Solutions, seeks a Mechanical Engineering Intern to support product development and mechanical design best practices. The intern will design antenna products, create and update CREO models, perform tolerance stackups, and document changes via ECOs and PLM tools.

Veterinary Technician Student Externship Program at Veterinary Emergency Group (VEG) in Torrance, CA. The program builds future veterinary technicians by immersing them in emergency medicine, where they shadow credentialed technicians, assist with triage, diagnostics, anesthesia, and inpatient care, and practice skills required by their school’s proficiency checklist. Students work on the fast‑paced ER floor, gaining hands‑on experience and mentorship while exploring a career in veterinary emerg

DigiStream Investigations sales team drives growth in the insurance risk industry. The Sales Intern supports sales operations by documenting activities in the CRM, researching market opportunities, and assisting client outreach and correspondence.

Mesh Optical Technologies' Optical Interconnect Engineering team builds advanced optical interconnect products. As an Associate Software Engineer Intern you will implement and test bare-metal drivers, assist in node bring-up and firmware loading, and design algorithms for link optimization using C++ and Python.

Internship on the City of Gardena Administrative Support Team, assisting various departments such as City Manager's Office, Police, and Recreation. Day‑to‑day tasks include preparing documents, gathering information, and providing public assistance under direct supervision.