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227 developer intern jobs at 167 companies in Santa Ana, CA

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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1mo
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2027 Software Engineer Intern
Costa Mesa or Irvine or Atlanta or Seattle or Boston or Reston
$45-$50/yr OnsiteInternship, Full Time
Anduril Industries
Anduril Industries: Defense technology building autonomous military hardware and software.
Pursuing a Bachelor\u0002s in CS or related field, rising senior returning to school, proficiency in C++, Go, Rust, Java, or Python, familiarity with algorithms, data structures, cloud and front-end concepts, and U.S. Person status required.
C++, Go, Rust, Java, Python, Lattice OS
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Intern
Ontario, California, United States
RemoteInternship
Falcon Wealth Planning
Falcon Wealth Planning: Fee-only firm providing comprehensive financial planning and investment management.
Seeking a professional, detail-oriented, eager-to-learn intern to support Operations, Financial Planning, Client Service, Marketing, Business Development, Compliance, and Administration.
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Manufacturing Engineer Intern
South Gate, California, United States
OnsiteFull Time
Precision Castparts Corp.
Precision Castparts Corp.NYSE: BRK.B: Manufacturer of complex metal components for aerospace and industrial markets.
0+ YOEInternship requiring full-time 40h/wk or part-time 20h/wk; strong math, analytical, problem-solving, communication; MS Office; ability to read technical documents; team collaboration.
Microsoft Office
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2mo
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Manufacturing Engineer Intern
Cerritos, California, United States
$25/hr OnsiteInternship
Amphenol CIT
Amphenol CITNYSE: APH: Designs and manufactures high-performance wire, cable, and interconnect solutions.
0+ YOE0-1 years engineering/CI experience; Lean/manufacturing knowledge; EHS awareness; Bachelor's in Engineering; strong communication; MS Office and Minitab skills.
MS Office, Minitab
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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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Web Developer Intern
Pasadena, California, United States
OnsiteInternship
Expatiate Communications
Expatiate Communications: Provides special education management and therapeutic services to school districts.
Pursuing or recently completed relevant degree; basic OOP and web fundamentals; familiarity with HTML/CSS/JavaScript; eagerness to learn full-stack, databases, version control, and cloud; Live Scan and TB clearance required.
C#, .NET, HTML, CSS, JavaScript, React, Svelte, Microsoft SQL Server, Azure SQL, MongoDB, Postman, Swagger, JWT, Git, GitHub, GitHub Actions, Microsoft Azure, Figma
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Software Engineer Intern
Los Angeles, California, United States
$30/hr HybridInternship
Centerfield
Centerfield: Drives customer acquisition through performance marketing and digital brands.
Required experience with C#/.NET, SQL, HTML/CSS/JavaScript, source control and OOP; pursuing a Computer Science degree; local to Playa Vista and available to work in-office three days/week.
C#, .NET, SQL, HTML, CSS, JavaScript, React, Node.js, Python, Java, AWS, Google Cloud Platform (GCP), Kafka, Amazon SQS, RabbitMQ, Docker, REST APIs
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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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3d
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Fall 2026 Intern, Properties (LA)
West Hollywood, California, United States
$20/hr HybridInternship, Part Time
Excel Sports Management
Excel Sports Management: Professional sports agency representing athletes and corporate brands.
Fall semester paid internship, 24-29.9 hours/week, hybrid with ~3 days in-office; must have senior standing in college, be enrolled in graduate school, or hold a bachelor’s/postgraduate degree; interns provide own transportation and housing.
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Intern
Rancho Cucamonga, California, United States
OnsiteInternship
Hillside Community Church
Hillside Community Church: Religious institution providing worship services and community programming.
Internship providing ministry training and leadership development; plan and execute events, foster community connections; 10–20 hours/week from late Aug 2026 to early May 2027.
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2w
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AI-First Engineering Intern
Los Angeles, California, United States
$20-$25/hr OnsiteInternship
Xsolla
Xsolla: Provides payment and monetization tools for game developers.
Experience using agentic AI coding tools, full-stack development comfort, proof-of-work portfolio (GitHub or deployed projects), currently a CS/software student or recent graduate, strong initiative and communication.
Claude Code, Cursor, Copilot, GitHub, APIs, SDKs, Loom
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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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3w
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Operations Intern
Lake Forest, California, United States
$17-$18/hr OnsiteMultiple Commitments Available
CellCarta
CellCarta: Provides precision medicine laboratory services for drug development.
College student pursuing a degree (biology/lab science/medicine preferred); follows SOPs to digitize and file biological samples and documentation; attention to detail; ability to lift up to 20 lbs; 20–30 hrs/week, temporary 6 months.
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5d
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Hydrogeology Intern
Lakewood, California, United States
$26-$28/hr FieldPart Time
Water Replenishment District of Southern California
Water Replenishment District of Southern California: Manages and protects groundwater resources for Southern Los Angeles County.
Enrolled full-time in a bachelor’s or graduate program in geology/hydrogeology or related field; able to work 10–24 hrs/week; experience with Microsoft Office; fieldwork and data analysis capabilities required.
Microsoft Outlook, Microsoft Word, Microsoft Excel, Microsoft PowerPoint, ArcGIS
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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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2w
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MANUFACTURING ENGINEER INTERN
City of Industry, California, United States
$25/hr OnsiteInternship
LISI Aerospace
LISI AerospaceEuronext Paris: FII: Manufactures high-performance fasteners and metal components for aircraft.
Actively pursuing a BS in Mechanical or Manufacturing Engineering; CAD and Solid Works proficiency; advanced Microsoft Word/Excel/Access skills; ability to lift up to 25 lbs; HSE and safety compliance.
Solid Works, Microsoft Word, Microsoft Excel, Microsoft Access, CAD
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3w
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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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2w
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Manufacturing Engineer Intern
Santa Fe Springs, California, United States
$20/hr OnsitePart Time
RD Rubber Technology Corporation
RD Rubber Technology Corporation: Manufacturer of custom precision molded rubber components.
Internship requiring familiarity with engineering calculations, CAD modeling, prototyping, manufacturing processes, and the ability to prepare reports and support continuous improvement projects; hands-on manufacturing experience preferred.
CAD
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1w
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Business Development Intern
New York City or Georgia or California or San Francisco or Turkey or Los Angeles or Dallas or Miami
RemoteFull Time, Internship
Immigrant Invest
Immigrant Invest: A provider of migration and investor services focused on partnership-driven business development.
Final-year student or recent graduate in business-related field; internship or part-time sales/partnerships experience helpful; CRM familiarity; professional English (C1); proactive and analytical.
Salesforce, HubSpot, Pipedrive, CRM
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