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33 software engineering internship jobs at 22 companies in Fullerton, CA

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Summer 2027 - Software Engineering Internship
Colorado Springs or Irvine or Longmont or Fremont or Rochester or San Jose
$35-$46/hr OnsiteInternship
Western Digital
Western DigitalNASDAQ: WDC: Design and manufacture data storage devices and systems.
Currently pursuing a Bachelor's or Master's in a technical field, experience with one or more programming languages (C,C++,Python,Java,Go,SQL,JavaScript), strong problem-solving and communication skills.
C, C++, Python, Java, Go (Golang), SQL, JavaScript, Microsoft Office, Git, Linux, IDEs
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Software Engineering Internship - Fall 2026
Torrance, California, United States
OnsiteFull Time
Vital Lyfe
Vital Lyfe: Develops portable devices that produce clean drinking water anywhere.
Strong programming fundamentals; experience with Python or TypeScript; familiarity with APIs, web applications, cloud systems; practical problem-solving and ownership mindset.
Python, TypeScript, React, SQL, AWS
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Software Engineering Intern – Summer 2027
Fridley or Tempe or Eatontown or Santa Rosa or Lafayette or Boulder or Plymouth or Mounds View or Irvine or North Haven or Memphis or Newton or Dexter or Santa Ana or Mansfield or Fort Worth or Minneapolis or Brooklyn Center or Jacksonville or Boston or Brooklyn Park
$27-$45/hr OnsiteFull Time
Medtronic
MedtronicNew York Stock Exchange: MDT: Develops and manufactures medical devices and digital health solutions.
Currently pursuing BS/MS in computer/software engineering or related with anticipated graduation 2027–2029; full-time internship availability June–Aug; U.S. work authorization required; 3.0 GPA preferred; experience with programming/projects preferred.
C, C++, C#/.NET, SQL, JavaScript, Java, Python, Swift, HTML/CSS, Microsoft Visual Studio, Jenkins, GitLab
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R&D Software Engineering Internship
Calabasas or Santa Clara
$33-$35/hr RemoteFull Time, Internship
Keysight Technologies
Keysight TechnologiesNew York Stock Exchange: KEYS: Manufactures hardware and software for electronic test and measurement.
Bachelor's or Master's in EE/CE or related; strong digital design and FPGA experience; RTL development with VHDL/Verilog/SystemVerilog; simulation, synthesis, and hardware bring-up skills; teamwork and communication.
FPGA, RTL, VHDL, Verilog, SystemVerilog, PCIe, Ethernet, SerDes
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2027 North America Software Engineering Internship
Bellevue or Boulder or Denver or Irvine or New York or Seattle
$46-$62/yr HybridInternship
The Trade Desk
The Trade DeskNASDAQ: TTD: Cloud-based programmatic advertising platform for data-driven media buying.
Enrolled in a Bachelor's or Master's program, expected to graduate 2027–2028; fluent in one or more object-oriented languages; strong data structures and algorithms; available to work 3 days in office (Tue–Thu).
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Spring 2027 Software Engineering Internship/Co-op
Bastrop or Brownsville or Cape Canaveral or Hawthorne or Irvine or McGregor or Palo Alto or Redmond
$30-$40/hr OnsiteInternship
SpaceX
SpaceX: Designs and launches advanced rockets and satellite internet constellations.
0.25+ YOEEnrolled in a bachelor’s or graduate program,3+ months programming experience,proficient in one or more of C,C++,C#,Java,JavaScript,Python,US work-authorization required.
C, C++, C#, Java, JavaScript, Python
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Software Engineering Intern, Vehicle Controls - Fall 2026
Irvine or Palo Alto
$38-$51/hr HybridInternship, Full Time
Rivian and Volkswagen Group Technologies
Rivian and Volkswagen Group Technologies: A joint venture delivering automotive software and connectivity solutions for electric vehicles.
Enrolled in Bachelor's or Master's program in Electrical/Mechanical Engineering or Computer Science; proficient in C/C++ and Python; RTOS experience preferred; familiar with CAN/LIN/UDS/DoIP; experience with microcontrollers and PID controls.
C/C++, Python, RTOS, CAN, LIN, UDS, DoIP, Microcontrollers, PID
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Software Engineer I, Mission Software
Long Beach, California, United States
$111k-$157k/yr OnsiteFull Time
Vast
Vast: Develops and operates commercial artificial-gravity space stations.
1+ YOEBachelor's in CS/math/engineering required; 1+ year academic/internship software experience preferred. Experience with full-stack development, APIs, containers, time-series data, and modern web frameworks.
Docker, Kubernetes, React, Next.js, Vue, GraphQL, REST, RPC, Node.js, OAuth, Terraform, Helm, SQL, Monitoring, Observability, Instrumentation
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Entry-Level Software Engineer
Dallas or Seattle or Houston or San Francisco or Chicago or Philadelphia or El Segundo or Atlanta or New York
$80k-$92k/yr HybridFull Time
Pariveda
Pariveda: Provides technology and strategy consulting for business growth.
Pursuing a Bachelors or Masters in MIS, Computer Science, or Computer Engineering (graduation Dec 2026–Aug 2027); legal US work authorization without sponsorship; software development or internship experience; strong communication and problem-solving skills.
AWS, Azure, Google Cloud, Databricks, PySpark, CI/CD, Docker, Terraform, Azure OpenAI, AWS Bedrock, LangChain, Python, Java, SQL, JavaScript, .NET, React, Angular
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R&D Software Engineering Internship
Calabasas or Santa Clara
$33-$35/hr OnsiteInternship
Keysight Technologies
Keysight TechnologiesNYSE: KEYS: Provides electronic design, test, and simulation software and hardware.
0+ YOEBachelor's or Master's in EE/CE or related, strong digital design and FPGA experience (RTL, simulation, synthesis), familiarity with VHDL/Verilog/SystemVerilog, strong problem-solving and communication skills.
VHDL, Verilog, SystemVerilog, PCIe, Ethernet, SerDes, FPGA
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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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2026 Early Career Embedded Software Engineer
Irvine, California, United States
$100k-$120k/yr OnsiteFull Time
TP-Link
TP-Link: Global manufacturer of networking hardware and smart home devices.
Bachelor's degree in CS/EE/CE (or related), internship/co-op or project experience, proficiency in C/C++, CS fundamentals, familiarity with SDLC, strong problem-solving and teamwork, and continuous US work authorization required.
C, C++
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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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Sr. Software Engineer (Radar R&D & Production Focused)
Hawthorne, California, United States
$140k-$220k/yr OnsiteAll Commitments Available
CHAOS Industries
CHAOS Industries: Develops advanced radar and sensing systems for modern defense.
10+ YOE10+ years in object-oriented software, Python, Linux, DoD access, Bachelors or higher in CS/CE.
Python, Linux, Git, Docker, Kubernetes, CUDA, SDR, CI/CD, virtualization, VMware
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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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3mo
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Principal Engineer Software - Storage (Chronosphere)
Burbank or Denver or Chicago or Austin or Jacksonville or Hartford or Bridgeport or Seattle or Boston or New York City
$147k-$238k/yr RemoteAll Commitments Available
Palo Alto Networks
Palo Alto NetworksNASDAQ: PANW: Provides enterprise-grade network, cloud, and endpoint security software.
Design and build scalable backend services for high-volume telemetry data; strong backend skills; cloud infra experience; API design; mentorship.
Go, Java, Python, Rust, AWS, GCP, Azure, REST, gRPC, GraphQL
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Ottawa Infotainment Internship Program – “Alligator Wrestling Program” (Summer 2026)
Ottawa or Detroit or Windsor or Los Angeles
OnsiteInternship
Ottawa Infotainment
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.
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Senior Sales Executive – Software
Chicago or Austin or Brea or San Diego or Portland or Colorado Springs or Marietta or Princeton or Latham or DC
$95k-$126k/yr RemoteAll Commitments Available
UL Solutions
UL SolutionsNYSE: ULS: Provides safety science testing, inspection, and certification services globally.
5+ YOE5+ years of related sales experience; Bachelor's or graduate degree in software engineering or related field; deep knowledge of specialty software products/services; proven ability to meet/exceed sales targets; proficiency with MS Office and CRM; strong business acumen.
MS Office, CRM software
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AI Engineer
New York or Los Angeles or Boston or Jersey City or Houston
$115k-$130k/yr RemoteAll Commitments Available
Makai Labs
Makai Labs: Provides AI-powered enterprise automation and human-machine teaming solutions.
Hands-on AI engineer with Python skills; experience building AI apps; internship/coursework/research or projects; ability to prototype and iterate quickly.
Python, API development, Backend services, Workflow automation, FastAPI/Flask, React/TypeScript, Docker, Testing (Python/TypeScript), LLM retrieval/search
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Mission Operation Intern Fall 2026
Littleton or Long Beach
$25/hr OnsiteInternship
Rocket Lab
Rocket LabNasdaq: RKLB: Operates launch vehicles and manufactures satellites for space missions.
0.25+ YOEEnrolled in bachelor’s, master’s, or doctoral program in aerospace/aeronautical/mechanical/software engineering; 3+ months engineering experience; GPA 3.0+; proficient in Python, Linux, Git.
Python, Linux, Git
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