112 summer intern jobs at 36 companies in Simi Valley, CA
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Summer Intern
Los Angeles, California, United States
$20/hrOnsiteInternship
JM Eagle: Manufacturer of plastic and PVC pipes for global infrastructure.
Pursuing a Bachelor’s degree in Business, Finance, Supply Chain, Marketing; strong communication; ability to manage multiple priorities; detail-oriented; proficient with MS Office.
Plastpro: Manufacturer of fiberglass entry doors and composite door systems.
Pursuing a Bachelor's degree in Business, Finance, Supply Chain, Marketing, or related field; strong communication; multi-priority management; detail-oriented; proficient in Microsoft Office.
Washington or Tampa or New York City or Chicago or Houston or Boston or Emeryville or Pittsburgh or Los Angeles
$25-$40/hrOnsiteFull Time
Berkeley Research Group: Provides expert testimony and specialized business consulting services.
Pursuing BA/MS with graduation between Winter 2027 and Summer 2028; strong quantitative, research and writing skills; experience with Excel, Stata, R, Python, SQL, SAS, or Snowflake preferred; US work authorization required.
Microsoft Excel, Stata, R, Python, SQL, SAS, Snowflake
Former Starr Interns ONLY - 2027 Starr Summer Intern - All Locations
New York City or Houston or Chicago or Los Angeles or Atlanta or Philadelphia
$24-$28/hrOnsiteFull Time, Internship
Starr Companies: Global commercial property and casualty insurance and investment provider.
Risk Management or Insurance major and relevant coursework are preferred but not mandatory; former Starr interns only. Interns support core insurance functions through a 10-week training program.
Intern to Intern Conversion – Business Functions (All) (Summer 2026 Intern Program)
Everett or Huntsville or Charleston or Tinker Air Force Base or Oklahoma City or Berkeley or Huntington Beach or Hazelwood or Germantown or El Segundo or China Lake or Arlington or Ridley Park or Tukwila or North Charleston or Kennedy Space Center or Fairfax or Houston or Colorado Springs or Chicago or Long Beach or Renton or Saint Louis or Dallas or Seattle or Auburn or Philadelphia or San Antonio or Kent or Mesa
$38k-$64k/yrOnsiteFull Time, Internship
BoeingNYSE: BA: Designs and manufactures aircraft, satellites, and defense systems.
Must be enrolled in a bachelor's or higher program (graduation on/after Aug 2027), be available full-time for a 10-12 week Summer 2027 internship, and have previously interned with Boeing.
Dubai or Africa or Turkey or Africa or Pakistan or Los Angeles or Singapore or New York City or London or Dublin or Paris or Berlin or Jakarta or Seoul or Tokyo
OnsiteInternship, Temporary
TikTok: Global short-form video hosting and social media platform.
Final-year bachelor's student in marketing, business, data analytics, or related field; available for 12 weeks in summer 2027; strong English communication, teamwork, analytical, and digital marketing skills.
TikTok Ads Manager, Pixels, SDKs, Mobile Measurement Partners (MMPs), Microsoft Excel
Boston or Chicago or Dallas or Denver or Los Angeles or Menlo Park or New York or San Francisco or Washington
$2k/wkOnsiteInternship
Analysis Group: Provides economic and financial consulting for legal and business challenges.
Pursuing a bachelor's or master's degree in a quantitative field, graduating winter 2027 or summer 2028; 3.3+ GPA, strong quantitative and research skills, communication, teamwork, and U.S. work authorization if applicable.
Chicago or New York City or San Francisco or Santa Monica or Washington or Beijing or New Delhi
$29/hrHybridFull Time
NRDC: Protects natural resources through law, science, and advocacy.
Current law students (2L or part-time/dual-degree with ≥1 year), strong legal writing, research, teamwork, and communication; commitment to public service; must be available in-office 3 days/week; submit cover letter, transcript, resume, references, and writing sample.
Chicago or Louisville or Washington or Los Angeles or New York or Oakbrook Terrace or Sacramento or San Francisco or Nashville or South Bend or Costa Mesa or Atlanta or Boston or Columbus or Dallas or Denver or Fort Lauderdale or Fort Wayne or Houston or Grand Rapids or Austin or Indianapolis or Lexington
$27-$42/hrHybridFull Time, Internship
Crowe: Global professional services firm providing audit, tax, and consulting.
Pursuing a bachelor's or master's degree in tax, accounting, or a similar field; CPA eligibility, Excel proficiency, relevant work experience, leadership, problem-solving, communication, and multitasking skills required.
Washington or Greenwood Village or Chicago or Boston or Farmington or Glendale or Los Angeles or San Francisco or Cleveland or Atlanta
$25-$30/hrHybridMultiple Commitments Available
Segal: Provides employee benefits, human resources, and investment consulting services.
Enrolled in a JD program, with beginner knowledge of ERISA and related regulations, excellent communication and interpersonal skills, collaboration ability, and strong federal and state legal research skills.
GuessNYSE: GES: Designs and retails contemporary fashion apparel and accessories worldwide.
0+ YOEEnrolled college students in good academic standing; high school diploma minimum; 0-2 years experience; internship provides administrative and functional support in advertising; ten-week paid program at Los Angeles HQ; no relocation assistance.
Chicago or New York City or Los Angeles or San Francisco
$175k/yrHybridInternship
Lincoln International: Global investment banking advisory for middle-market transactions and private funds.
MBA candidate (2028), strong accounting and finance skills, excellent communication, assertive and self-motivated; prior M&A or investment banking experience preferred; must not require visa sponsorship.
Cherry Bekaert: Provides accounting, tax, and business advisory services to clients.
Accounting or related-program juniors or seniors two years from graduation; GPA 3.0 preferred; computer and spreadsheet proficiency; ability to travel frequently to client sites; U.S. work eligibility required.
Fellowship of Christian Athletes: Provides Christian ministry and mentorship to athletes and coaches.
Collegiate volunteer internship (summer or semester) focused on ministry development; requires alignment with FCA Christian statement, participation in daily prayer/Bible study, church involvement, and leading spiritual activities. Unpaid; may receive a nominal stipend.
New York City or Seattle or Los Angeles or Mountain View or San Francisco
$70/hrOnsiteInternship
Atoms: Building robotics and software to automate physical world industries.
Pursuing a bachelor's or master's in computer science, engineering, or related field; minimum 3.7 GPA, introductory computer science coursework, and advanced programming experience.
Houlihan LokeyNYSE: HLI: Global investment bank providing financial advisory and restructuring services.
Junior or senior in a Bachelor's program (Finance, Accounting, or Economics); proficient in Microsoft Excel, PowerPoint, Word; experience with Salesforce and Pitchbook preferred; basic financial modeling and accounting knowledge; strong communication and work ethic.
Salesforce, Pitchbook, Microsoft Excel, Microsoft PowerPoint, Microsoft Word
Sacramento or Oakland or Commerce or San Diego or Goodyear or Manassas
$21-$28/hrOnsiteFull Time
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.
Houlihan LokeyNYSE: HLI: Provides global investment banking and financial restructuring advisory services.
Must be a junior or senior pursuing a Bachelor's (Finance, Accounting, or Economics preferred); Excel, PowerPoint, Word proficiency; basic financial modeling knowledge; strong communication; internship experience preferred.
Microsoft Excel, Microsoft PowerPoint, Microsoft Word, Salesforce, PitchBook
Second Order Effects: Engineering firm designing and building custom electronics and systems.
Current college enrollment in EE/CS/Physics/Math, basic circuits knowledge, familiarity with a programming language or HDL, strong problem-solving and communication skills.
Boeing Summer 2027 Internship Program (Paid) – Data Analytics Intern
Everett or Saint Charles or Huntsville or Charleston or Oklahoma City or Berkeley or Huntington Beach or Hazelwood or El Segundo or Herndon or Plano or Arlington or Ridley Park or Tukwila or North Charleston or Fairfax or Colorado Springs or Chicago or Seal Beach or Mukilteo or Long Beach or Atlanta or Renton or Dallas or Seattle or Auburn or Bellevue or San Antonio or Kent or Mesa
$44k-$89k/yrHybridFull Time
BoeingNYSE: BA: Designing and manufacturing commercial aircraft and defense systems.
Currently enrolled student with expected graduation on or after Aug 2027; available full-time for a 10-12 week summer 2027 internship; US Person may be required for some roles; employer will not sponsor employment visas.