9 process engineering intern jobs at 6 companies in Napa, CA

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Process Engineering Intern, ESS
Burlingame, California, United States
$30/hr OnsiteInternship
Peak Energy
Peak Energy: Developing sodium-ion battery systems for utility-scale energy storage.
Pursuing a Bachelor's in engineering, knowledge of materials and battery components, strong problem-solving, communication and teamwork, hands-on manufacturing willingness; Six Sigma/Lean exposure preferred.
3w
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Metallurgical Engineering Intern
Alameda, California, United States
$35-$45/hr OnsiteInternship
Solcoa
Solcoa: Produces carbon-zero rare earth metals by recycling industrial magnets.
Enrolled in BS/MS in metallurgical engineering, materials science, or related field; hands-on lab/furnace experience; exposure to high-temperature processing; strong documentation and safety focus; on-site availability.
ICP-OES, SEM-EDS, LECO O/N, Python, MATLAB, FactSage, HSC
1mo
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Supplier Industrialization Engineering Intern (Fall 2026)
South San Francisco, California, United States
OnsiteFull Time, Internship
Zipline
Zipline: Operates an autonomous drone delivery system for medical supplies.
Undergraduate (completed 2nd year) or graduate student in engineering or related field; proficiency in 3D CAD (NX preferred), GD&T, manufacturing processes, APQP/PPAP, problem-solving frameworks (8D, FTA, Pareto), and process documentation.
NX, GD&T, APQP, PPAP, 8D, FTA, Pareto Analysis, FMEAs, Control Plans, Work Instructions, Zipline Approval Process (ZAP), PCBA
1w
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Process and Thermal Performance Intern
Alameda or Florida
$35-$45/hr HybridInternship
Rondo Energy
Rondo Energy: Manufactures thermal batteries for industrial zero-carbon heat delivery.
Pursuing Bachelor's or Master's in Mechanical/Chemical engineering, coursework in thermodynamics/fluid mechanics/heat transfer, familiarity with 1D thermal-fluid analysis and simulation tools, strong math and communication skills.
AFT, Ebsilon, Aspen, MATLAB, Aspen Plus/HYSYS, CFD, FEA
1mo
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Process Safety Engineer (PSM)
Madrid or Alameda or United States or Germany or Portugal or Thailand or Australia
OnsiteFull Time
Rondo Energy
Rondo Energy: Manufactures thermal batteries for industrial zero-carbon heat delivery.
10+ YOEB.S. in engineering and ~10+ years process/process-safety experience; demonstrated HAZOP/PHA facilitation; multi-site/international PSM experience; IEC 61511 and functional safety practice; willing to travel 25–40%.
HAZOP, HAZID, LOPA, IEC 61511, API 754, FMEDA, SIL, PSSR, PSI, SIS
3mo
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Senior Process Engineer, MSAT
Alameda, California, United States
$72-$89/hr OnsiteContract, Full Time
GeneFab
GeneFab: Specialized contract manufacturing for advanced cell and gene therapies.
6+ YOELead GMP implementation of internal platform processes for cell and gene therapy; tech transfer, regulatory support, and CMC documentation.
GMP, DoE, CMC, Regulatory documentation
1mo
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Supplier Industrialization Engineer Intern (Fall 2026)
Burlingame, California, United States
$30/hr OnsiteInternship
Peak Energy
Peak Energy: Developing sodium-ion battery systems for utility-scale energy storage.
Student in engineering or related STEM field with internship or work experience; proficiency in CATIA/3D CAD, engineering drawing/GD&T, knowledge of manufacturing processes, APQP/PPAP, problem-solving (8D/A3), and RCA/CAPA.
3D CAD Software, CATIA, APQP, PPAP, 8D, A3, Pareto Analysis, RCA, CAPA
1mo
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Flight Test Engineer Intern (Fall 2026)
South San Francisco, California, United States
$40/hr OnsiteFull Time, Internship
Zipline
Zipline: Operates an autonomous drone delivery system for medical supplies.
Must be at least a second-year undergraduate (or grad) in a relevant engineering/technical field; strong math/physics, experience with autonomous/robotic system integration and testing, data processing and visualization, and strong communication skills.
Python, DataBricks, SQL
2w
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Software Engineer (Ray Data)
San Francisco, California, United States
$226k-$241k/yr OnsiteFull Time
Anyscale
Anyscale: Cloud platform for scaling distributed machine learning applications.
3+ YOE3+ years experience building scalable, fault-tolerant distributed systems; experience with data processing and database internals; strong performance focus for AI workloads.
Python, Ray, Ray Data