Internships in Long Beach, California, United States

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.

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 on busy corridors. As a Systems Engineering and Integration Intern, you’ll support definition, architecture, integration, and testing of a novel aircraft system.

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.

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.

Odys Aviation is building safe, sustainable aircraft to halve travel time on busy corridors. As a Creative Design Intern you will design graphics and visual assets for social media, website, and marketing materials, integrate 3D renderings into presentations, and maintain the design asset library.

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.

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.

Transportation Business Group at HDR focuses on designing resilient highways, bridges, transit, rail, aviation and marine infrastructure to support sustainable, connected communities. As a Utility Intern you will gain real‑world experience on projects, apply standard engineering techniques, and develop design graphics under the mentorship of a licensed engineer.

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.

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.

Assurance team at BPM provides comprehensive audit training and hands‑on experience across diverse industries. Interns analyze financial statements, perform audit procedures, and test internal controls while collaborating with mentors and peers.

Manufacturing Engineering Intern at Rocket Lab’s Long Beach site, working with design, production and quality teams to develop and qualify processes for rocket engines. The role involves hands‑on engineering, project ownership, and cross‑team collaboration in a fast‑paced environment.

Tax Intern at BPM, part of the Tax team delivering services across diverse industries such as Blockchain, Financial Services, and Real Estate. The role supports senior staff by preparing work papers and tax returns, researching complex tax issues, and participating in training and intern projects.

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.

Administration/Human Resources Department at Water Replenishment District provides essential HR services for the district. The intern supports recruitment, classification, employee engagement, and special projects, handling interview scheduling, policy updates, and event coordination.

Hydrogeology Department at Water Replenishment District manages groundwater resources for millions of residents. Intern assists with field data collection, pressure transducer maintenance, and prepares tables and graphs for compliance reports.

Layup Parts’ mission is to deliver composite parts faster through technology-first manufacturing. As an Electrical Engineering Intern, you’ll help build out our automated factory, design, retrofit, and commission robots and other automated systems, and collaborate with software and mechanical design teams to solve tough problems.

Join Layup Parts as a Software Engineering Intern to build factory operating systems, design production interfaces, and develop tools that accelerate composite manufacturing for aerospace and defense clients.

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.