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85 intern engineer jobs at 53 companies in Temecula, CA

1w
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Manufacturing Engineer Intern
Santa Ana, California, United States
$17-$24/hr OnsitePart Time
Masco
MascoNew York Stock Exchange: MAS: Manufactures and distributes home improvement and building products.
Mechanical/Industrial engineering student; Microsoft Office proficiency; CREO a plus; good communication; intermediate math; able to lift up to 20 lbs; legally authorized to work in the U.S.
Microsoft Outlook, Microsoft Word, Microsoft Excel, CREO
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1mo
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2027 Mechanical Engineer Intern
Atlanta or Boston or Costa Mesa or Irvine or Seattle or Huntsville
$30-$45/hr OnsiteInternship
Anduril Industries
Anduril Industries: Defense technology building autonomous military hardware and software.
Pursuing a bachelor's in mechanical engineering or related field, rising senior status, collegiate project/lab experience, CAD and hands-on fabrication skills, strong engineering fundamentals, U.S. Person required.
CAD, NX, Teamcenter, SolidWorks, FEA, CFD
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2w
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Manufacturing Engineer - Intern
Santa Ana, California, United States
OnsiteMultiple Commitments Available
Regal Technology Partners: Manufacturer of mission-critical electronic systems for aerospace and defense.
Currently pursuing a Bachelor's in engineering, knowledge of manufacturing processes and lean principles, proficiency with Microsoft Office, strong analytical and problem-solving skills, ability to stand and lift up to 25 lbs.
Microsoft Excel, Microsoft Word, Microsoft PowerPoint
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1w
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Roadway/Highway Intern
Irvine, California, United States
$23-$40/hr OnsitePart Time
Parsons
ParsonsNYSE: PSN: Provides engineering and technology services for infrastructure and defense.
Enrolled in an accredited engineering curriculum (typically 1+ year completed). Responsibilities include roadway design, construction documents, quantity takeoffs, and field surveys.
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2mo
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Intern - Engineering
Irvine, California, United States
$19-$22/hr OnsiteInternship, Part Time
Transportation Corridor Agencies
Transportation Corridor Agencies: Operates and maintains public toll roads in Orange County.
0+ YOEJunior/senior undergrad or graduate student in civil/transportation/environmental engineering; GPA 2.5+; strong MS Office; basic reading of drawings; eager to learn; no prior experience required.
Microsoft Office, AutoCAD, GIS
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1mo
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Firmware Engineer Intern
Irvine, California, United States
OnsiteInternship
Fluxergy
Fluxergy: Portable diagnostic platform for rapid point-of-care laboratory testing
0+ YOEEnrollment in a Bachelor’s or Master’s program; 30-40 hours/week; proficiency in C/C++; RTOS exposure; strong problem-solving and communication skills.
C/C++, RTOS, Git, Embedded systems
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2mo
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Project Engineer Intern - Summer 2027
Sacramento or Oakland or Commerce or San Diego or Goodyear or Manassas
$21-$28/hr OnsiteFull Time
Helix Electric
Helix Electric: Provides electrical contracting and design-build services for complex projects.
Enrolled in a bachelor’s degree program; construction or engineering focus; internship or related experience preferred; strong communication, math, and organizational skills.
BIM, Accubid, Excel, AutoCAD, Microsoft Office
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3w
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ME Intern
Irvine, California, United States
$18-$28/hr OnsiteInternship, Part Time
One-Cycle Control
One-Cycle Control: Manufacturer of high-performance power electronics and conversion technology.
US citizen or Green Card required; ability to read work orders, follow instructions, good communication, attention to detail; minimum 16 hours/week; background check and drug test possible.
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1mo
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Intern, Industrial Engineer (Business Excellence)
Aliso Viejo, California, United States
$21-$34/hr OnsiteInternship
MicroVention
MicroVention: Manufacturer of neurovascular medical devices for stroke treatment.
Pursuing a Bachelor’s or Master’s in Business, Engineering, Analytics or related; strong analytical and communication skills; MS Office with Excel emphasis; ability to work cross-functional; eligible to work in the U.S. without visa sponsorship.
Microsoft Office, Microsoft Excel, Power BI
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2mo
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Highway Intern
Riverside, California, United States
OnsiteInternship, Part Time
HDR
HDR: Global provider of engineering, architecture, environmental and construction services.
Currently enrolled in an undergraduate or graduate engineering program; attention to detail, problem-solving and communication skills; basic Microsoft Office skills; ~20 hours/week on-site; mentoring by licensed engineer.
Microsoft Office
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2mo
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Highway Intern
Riverside, California, United States
$22-$26/hr OnsitePart Time, Temporary
HDR
HDR: Global firm providing architecture, engineering, and environmental services.
0+ YOECurrently enrolled in an undergraduate or graduate Engineering program; detail-oriented; strong problem-solving and communication skills; basic MS Office; on-site work ~20 hours/week; no remote.
Microsoft Office
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1w
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Manufacturing Engineer Intern
Santa Ana, California, United States
$17-$24/hr OnsitePart Time
Brasstech
BrasstechNYSE: MAS: Manufacturer of premium kitchen and bathroom fixtures and accessories.
Mechanical/Industrial engineering student; strong communication; Microsoft Office; CREO a plus; ability to design fixtures; legal work authorization; occasional lifting to 20 lbs.
Microsoft Outlook, Microsoft Word, Microsoft Excel, CREO
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2mo
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CNC Programmer Intern
Yorba Linda, California, United States
OnsiteInternship, Full Time
Envista
EnvistaNYSE: NVST: Manufactures and sells a comprehensive range of dental products.
Pursuing a degree or certificate in Manufacturing Engineering, Mechanical Engineering, Industrial Technology, Mechatronics, or CNC Machining; basic CNC, GD&T, drawings, and CAM software knowledge.
G-code, CAM software
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5d
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Civil Engineering Intern
Irvine, California, United States
$19-$28/hr OnsiteFull Time
TRC Companies
TRC Companies: Engineering and environmental consulting for infrastructure and energy projects.
Pursuing an Associate or Bachelor in Civil Engineering, minimum 3.0 GPA, 18+ years old, strong communication and technical problem-solving skills, proficient in Microsoft Excel/Word/PowerPoint.
Microsoft Excel, Microsoft Word, Microsoft PowerPoint, AutoCAD, MathCAD, ESRI, HydroCAD, WaterCAD, ArcView GIS
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3mo
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Project Engineering Intern
Escondido, California, United States
$25/hr OnsiteInternship, Full Time
JR Filanc Construction Company
JR Filanc Construction Company: Constructs and renovates water and wastewater treatment facilities.
Current engineering or construction student; strong MS Office; advanced AutoCAD, AutoCAD MEP, Revit; strong communication and analytical skills; ability to manage multiple projects; flexible hours.
AutoCAD, AutoCAD MEP, Revit, Microsoft Office
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1w
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Engineering Intern (Part-Time)
Santa Ana, California, United States
$20-$21/hr OnsitePart Time, Internship
City of Santa Ana
City of Santa Ana: Provides essential public services and infrastructure to Santa Ana residents.
Currently enrolled undergraduate in engineering/construction-related curriculum with GPA ≥2.5, knowledge of AutoCAD or MicroStation and Microsoft Office, valid driver’s license, ability to conduct field investigations and office tasks.
AutoCAD, MicroStation, Microsoft PowerPoint, Microsoft Excel, Microsoft Word, Microsoft Access
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6d
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R&D Intern
Laguna Hills, California, United States
$20-$25/hr OnsiteFull Time
Sonendo
SonendoOTCQX: SONX: Medical technology transforming dentistry through innovative device systems.
Currently enrolled in or recent graduate of a bachelor’s program in engineering or science; lab or internship experience preferred; ability to perform bench testing, prototyping, and basic troubleshooting.
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1w
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Temporary Student Intern - Automation
Irvine, California, United States
$18-$25/hr OnsiteInternship, Temporary
Irvine Ranch Water District
Irvine Ranch Water District: Provides water supply and wastewater management services in California.
Active enrollment in undergraduate/graduate program (computer/engineering-related), valid California Class C driver license, familiarity with Microsoft Office, and interest/experience with IT/OT/SCADA, AI/ML, servers, databases, and networking.
Microsoft Servers, Linux, SQL Database, Splunk, SolarWinds Topology Mapper, VS Code, Codex, Claude, Microsoft Excel, Microsoft Word, Microsoft PowerPoint, Visio
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1mo
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Project Engineer
Jurupa Valley, California, United States
$81k-$110k/yr OnsiteFull Time
Crane Company
Crane CompanyNYSE: CR: Manufactures engineered components for aerospace and industrial process markets.
3+ YOEBachelor's in engineering or 3+ years in piping/construction/mechanical engineering; knowledge of cryogenic systems, CAD/SOLIDWORKS, NFPA/ASME/CGA codes; project coordination, modeling, drafting; frequent domestic/international travel.
SOLIDWORKS, CAD software, Microsoft Office Suite, CRM, ERP
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1w
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Quality Engineer
Costa Mesa, California, United States
$80k-$95k/yr OnsiteFull Time
Sanmina
SanminaNASDAQ: SANM: Designs and manufactures complex electronics and mechanical systems.
5+ YOEBachelor's in engineering, 5+ years quality engineering in high-precision manufacturing, GD&T and CMM expertise, Six Sigma experience, SPC/MSA/FAI knowledge, internal auditing and corrective action skills.
Minitab, JMP, CMM
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