Top 42 Internship Jobs in Napa, Ca

Continuous Improvement / Industrial Engineering Internship
Mezzetta —American Canyon, CA
- $27 an hour
- Analysis skills
- In-person
- Electrical Engineering
Quick Apply
Seasonal HR Intern
UPS —San Pablo, CA
- $13.35 - $52.00 an hour
- Seasonal
- Microsoft Word
- Microsoft Excel
- Research
- Employee stock purchase plan
- 401(k)
7d
Harvest Cellar Intern
Duckhorn Wine Company —Napa, CA
- $21 - $25 an hour
- Seasonal
- Spanish
- English
- Ability to climb stairs
Harvest Intern
Winery Division —Napa, CA
- $26 an hour
- Forklift
- High school diploma or GED
- Driver's License
Quick Apply
Lab Intern
Collidion —Petaluma, CA
- Part-time
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- Computer skills
- Internship
Interns/Externs/Volunteers
Marin Community Clinics —Novato, CA
- Online Application
- Background check
- Writing skills
- Clinic
14d
Civil Engineering Intern
APTIM —Concord, CA
- $25.00 - $34.11 an hour
- Temporary
- 18 years or older
- Clean driving record
- Construction site
Quick Apply
Summer Sales Internship - Make $7,000 - $20,000+ (Training Provided)
Lotus Sales —Napa, CA
- $7,000 - $20,000 a month
- Seasonal
- No experience needed
- Internship
- Entry level
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Paraduxx Harvest Intern
Duckhorn Wine Company —Napa, CA
- $21 - $25 an hour
- Seasonal
- Clean driving record
- Writing skills
- Forklift
Quick Apply
2027 Staff Accountant Intern
Novogradac & Company —Petaluma, CA
- $29 an hour
- Full-time
- Hybrid work
- Microsoft Excel
- Writing skills
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- Flexible schedule
Intern - State Farm Agent Team Member
Katie Chase - State Farm Agent —Rohnert Park, CA
- $17.50 an hour
- Part-time
- Microsoft Excel
- Office
- Organizational skills
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Kaizen Summer Sales Internship
Kaizen Marketing —Vacaville, CA
- $200 - $300 a day
- Seasonal
- Marketing
- Analysis skills
- In-person
- Paid training
- Relocation assistance
Quick Apply
Management Trainee Fall 2026 Internship
Enterprise Mobility —Richmond, CA
- $22 an hour
- Part-time
- 18 years or older
- Sales
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Pharmacy Intern Grad
Walgreens —Napa, CA
- $33.50 - $45.30 an hour
- Full-time
- Patient care
- Human resources
- Mentoring
- Continuing education credits
Faculty Intern (4CD Teaching Excellence Faculty Internship Program 2026-2027)
Contra Costa Community College District —Martinez, CA
- Temporary
- Classroom
- Doctoral degree
- Master's degree
2d
Foreign Pharmacy Grad - International Pharmacy Intern
CVS Health —Fairfield, CA
- $32.50 - $42.00 an hour
- Weekends as needed
- Microsoft Excel
- Microsoft Outlook
- HIPAA
- Health insurance
- Dental insurance
343 - Raley's Pharmacy Intern - Benicia
Bashas' Supermarkets —Benicia, CA
- Part-time
- Microsoft Excel
- Pass drug screening
- Conflict management
343 - Raley's Pharmacy Intern - Benicia
Raley's Supermarkets —Benicia, CA
- Part-time
- Microsoft Excel
- Pass drug screening
- Conflict management
Special Education Teacher Intern
Building Connections Behavioral Health —Martinez, CA
- $30 - $35 an hour
- Full-time
- Background check
- School experience
- Classroom
- Mileage reimbursement
- Paid holidays
Quick Apply
Clinical Leader Intern - Rohnert Park Region
Center for Social Dynamics —Petaluma, CA
- $27 - $33 an hour
- Part-time
- Experience working with children
- Bachelor's degree
- Children
- Paid training
- Mileage reimbursement
Quick Apply

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Continuous Improvement / Industrial Engineering Internship

Mezzetta -
American Canyon, CA

Quick Apply

Job Details

Internship
$27 an hour

Qualifications

Operational analysis
Production data analysis
Technical documentation
Mechanical Engineering
Engineering process optimization
Factory operations documentation
Manufacturing standard operating procedures
Process mapping
Key Performance Indicators
Analysis skills
Process modeling
Industrial Engineering
Team training
Packaging
Training machine operators
Industrial engineering
Data-driven problem-solving
Technical training
Operational excellence initiatives
Data collection
Electrical Engineering
Quality improvement programs in engineering
Research findings presentation
Standard operating procedures (SOPs)
Production flow analysis
Implementing lean manufacturing processes
Entry level
Standard operating procedures drafting
Data analysis software
Engineering manufacturing support

Full Job Description

About Us:
Since 1935, we've been on a mission to bring a little extra happiness to everyday life and inspire connections over food. We select the finest ingredients the world has to offer, craft premium products made with love, and never settle for shortcuts. We believe that when we share our food, we share a part of ourselves — and that's the only way we'd put our name on it.

Today, our small family company has grown into a national leader in specialty olives, peppers, and sauces under the leadership of CEO Jeff Mezzetta, and our commitment to quality has never wavered. With an 80-year legacy behind us and a bright future ahead, we're seeking passionate, driven candidates to help us bring our cherished family traditions to a new generation.

The ideal candidate will have an immediate connection to our Core Ingredients:

Crunchy Crunchy: We are hungry for excellence.
Own It: We think and act as an owner – with appetite, initiative, and responsibility.
Connection: We build authentic relationships that foster trust and open communications.
Vibrance: We come to work eager and passionate about fulfilling our vision. When we share our work, we share a part of who we are.

Program Objective

The Continuous Improvement / Industrial Engineering Intern will develop hands-on experience in manufacturing performance analysis and process optimization by learning and applying Industrial Engineering methods focused on time study, cycle time, takt time, and line balancing. Throughout the duration of this 16 week program, the Intern will support Mezzetta's effort to improve packaging line performance, reduce bottlenecks, and identify opportunities for efficiency and labor optimization.

By the end of the internship, the Intern will:

Understand and apply time study and work measurement techniques.
Calculate and interpret cycle time, takt time, and OEE-related metrics.
Identify bottlenecks and develop data-based process improvement proposals.
Demonstrate practical Lean problem-solving in a real production environment.
Present technical findings and communicate improvement ideas effectively.

16 Week Program Outline

Week 1 Focus Area – Orientation & Training

Onboarding: Safety, GMP, food manufacturing overview
Overview of Mezzetta packaging lines
Introduction to Lean concepts and time study methods

Week 2 Focus Area – Process Familiarization

Observe selected packaging lines in operation
Map process flow (from depalletizing to case pack)
Identify key workstations and operator roles

Week 3 – Focus Area – Time Study Training & Data Collection Plan

Learn time study methods (manual stopwatch or digital)
Define cycle elements and observation approach
Create a data collection sheet and sampling plan

Weeks 4 & 5 Focus Area – Execute Time Studies

Collect detailed cycle time data for each station
Record operator performance, idle time, micro-stops
Validate repeatability and accuracy of measurements

Week 6 Focus Area – Data Analysis: Cycle & Takt Time

Calculate average cycle time per station
Compute line takt time vs customer demand
Identify imbalances and bottlenecks

Week 7 Focus Area – Line Balancing & Optimization Opportunities

Use data to evaluate workload distribution
Simulate potential line balance improvements
Identify waste (waiting, motion, overprocessing)

Weeks 8 & 9 Focus Area – Test Improvement Hypotheses

Work with operators and supervisors to trial small changes (layout, sequence, method, job rotation)
Measure new cycle times and validate improvements

Week 10 Focus Area – Optimization Documentation

Standardize improved methods
Develop or update standard work charts and SOPs

Weeks 11 – 16 Focus Area – Sustainability & Handoff

Train operators or leads on improved process
Create visual management aids (takt board, KPI chart)

Week 16 Focus Area – Final Presentation

Present "Process Optimization Findings" to CI and Operations leadership:
– What was studied
– Data-driven findings
– Implemented improvements and quantified benefits
– Future recommendations

Requirements

Must be currently enrolled as a junior or senior in college and studying Electrical, Mechanical, Process Engineering or similarly manufacturing related discipline
Must be able to be on site in American Canyon (flexible on hours/schedule)

Familiarity with the following is a plus:

Stopwatch or digital time study tools (Zebra, MODAPTS, etc.)
Excel for data analysis and charts
Line balancing diagrams
Standard Work Sheet and Takt Board templates

Our Commitment to an Inclusive Workplace:
At Mezzetta, we embrace diversity and strive to create an inclusive environment where you know you belong. Part of that commitment includes a zero-tolerance policy and being an Equal Opportunity Employer that prohibits discrimination and harassment of any kind. All employment decisions at Mezzetta are solely based on merit, qualifications, abilities and business needs, without regard to race, color, religion or belief, gender, sexual orientation, gender identity/expression, age, marital status, national origin, disability, military or veteran status, family or parental status, pregnancy, or any other status protected by law. All of us share in the responsibility of fulfilling this commitment and creating a culture where our team can thrive.

Quick Apply

Refine Your Search

internship jobs in napa, ca

Continuous Improvement / Industrial Engineering Internship

Seasonal HR Intern

Harvest Cellar Intern

Harvest Intern

Lab Intern

Interns/Externs/Volunteers

Civil Engineering Intern

Summer Sales Internship - Make $7,000 - $20,000+ (Training Provided)

Paraduxx Harvest Intern

2027 Staff Accountant Intern

Intern - State Farm Agent Team Member

Kaizen Summer Sales Internship

Management Trainee Fall 2026 Internship

Pharmacy Intern Grad

Faculty Intern (4CD Teaching Excellence Faculty Internship Program 2026-2027)

Foreign Pharmacy Grad - International Pharmacy Intern

343 - Raley's Pharmacy Intern - Benicia

343 - Raley's Pharmacy Intern - Benicia

Special Education Teacher Intern

Clinical Leader Intern - Rohnert Park Region

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