9 mechanical engineer intern jobs at 8 companies in Lancaster, CA
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Mechanical Engineering Intern
Akron or Ashtabula or Conroe or Freeport or Houston or The Woodlands or McIntosh or Geismar or Los Angeles
OnsiteInternship, Full Time
HuntsmanNYSE: HUN: Manufactures and markets chemical products for consumer and industrial markets.
Pursuing a bachelor's in Mechanical Engineering, 3.0+ GPA preferred, strong mechanical aptitude and communication, proficiency with Microsoft Office, authorized to work in the U.S. without sponsorship.
Rocket LabNASDAQ: RKLB: Designs and builds launch vehicles and satellite systems.
0.25+ YOEEnrolled in BS/MS/PhD in engineering/physics/math with ≥1 semester remaining, GPA ≥3.0, ≥3 months applied engineering experience, able to work full-time on-site for ≥12 weeks beginning Aug/Sept 2026.
CAD/CAM, NX, Teamcenter, ANSYS, Simcenter 3D, FEMAP/NASTRAN, 3D printing
GITAI: Developing autonomous robotic systems for labor in space.
1+ YOECurrently enrolled in a relevant bachelor’s or master’s program;1+ year hands-on student engineering project experience;experience taking hardware through design, fabrication, assembly, and test;3D CAD proficiency;U.S. work authorization and U.S. citizenship or equivalent for export-controlled work.
Tetra TechNASDAQ: TTEK: Global provider of high-end consulting and engineering services.
Pursuing a bachelor\u0002s in civil, chemical, mechanical, or environmental engineering; Microsoft Office proficiency; strong communication and multitasking skills.
SeniorLondon Stock Exchange: SNR: Designs and manufactures high-technology components for aerospace and land vehicles.
Working toward or recently graduated with BS/MS/PhD in Mechanical/Aerospace/Physics; proficient in MS Office, MATLAB or programming (VBA/Python); strong problem-solving and communication; able to work 24-40 hrs/week onsite.
Microsoft Word, Microsoft Excel, Microsoft PowerPoint, MATLAB, VBA, Python
Engineering Intern in Diamond Bar, California, United States
Diamond Bar, California, United States
$18-$23/hrOnsitePart Time
Tetra TechNASDAQ: TTEK: Provides global consulting and engineering services for water and environment.
Pursuing a bachelor’s in Civil/Chemical/Mechanical/Environmental Engineering; Microsoft Office proficiency; strong communication, multitasking, and attention to detail.
Freeform: Deploys autonomous AI-powered metal 3D printing factories.
Currently enrolled in a bachelor’s in mechanical or aerospace engineering (ABET); hands-on design experience from internships or clubs; strong mechanical fundamentals. MATLAB scripting, metal additive/CNC experience, and advanced degrees preferred.
MATLAB, Design for Additive Manufacturing (DFAM), Design for Manufacturing (DFM), Geometric Dimensioning and Tolerancing (GD&T), CNC
Precision Castparts Corp.NYSE: BRK.B: Manufacturer of complex metal components for aerospace and industrial markets.
Currently pursuing a BS in Operations Management, Engineering, or Business Management (completed at least freshman year). Interest in manufacturing operations and leadership, continuous improvement, data analysis, root cause problem solving, and mechanical aptitude.
Ottawa Infotainment Internship Program – “Alligator Wrestling Program” (Summer 2026)
Ottawa or Detroit or Windsor or Los Angeles
OnsiteInternship
Ottawa Infotainment: A building software-defined vehicle systems and infotainment platforms.
Curious, self-directed candidates with problem-solving skills and interest or background in software, electrical, mechanical, design, or supply chain/business operations; able to own deliverables and present to leadership.