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86 chemical engineer jobs at 54 companies in San Clemente, CA

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Chemical Process Engineer I
Huntington Beach, California, United States
$60k-$80k/yr OnsiteFull Time
Nikkiso
NikkisoTokyo Stock Exchange: 6376: Designs and manufactures precision fluid control and industrial equipment.
Bachelor's degree in chemical or another engineering discipline with refrigeration study, engineering research or testing experience, and process modeling or thermodynamic database experience.
Symmetry, HYSYS, CHEMCAD, REFPROP, NIST, P&ID
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1w
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Chemical Process Engineer I
Huntington Beach, California, United States
$60k-$80k/yr OnsiteFull Time
Nikkiso
NikkisoTokyo Stock Exchange: 6376: Manufactures industrial pumps, fluid handling systems, and medical equipment.
Bachelor's degree in chemical or related engineering, refrigeration study, engineering research or testing experience, and process modeling experience with calculators or thermodynamic databases.
Symmetry, HYSYS, CHEMCAD, REFPROP, NIST, P&IDs
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1mo
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Energy Compliance Services - Associate Chemical Engineer
San Diego or Houston or Denver
$80k-$85k/yr OnsiteFull Time
Weaver
Weaver: Provides accounting, audit, tax, and business advisory services.
Bachelor in Chemical Engineering (EAC/ABET), GPA≥3.3, proficiency with Microsoft Excel/Word/PowerPoint/Outlook, strong communication and teamwork, ability to learn quickly; FE/EIT/PE progression encouraged.
Microsoft Excel, Microsoft Word, Microsoft PowerPoint, Microsoft Outlook
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2w
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Process Safety & Chemical Engineer
Garden Grove, California, United States
$120k-$151k/yr OnsiteFull Time
GKN Aerospace
GKN AerospaceLondon Stock Exchange: MRO: Manufacturer of advanced systems and components for global aircraft.
5+ YOEBachelor's in chemical/process-related field, 5+ years in process safety or chemical/process engineering, working knowledge of PSM/CalARP/RMP/HAZOP/LOPA, ability to read PFDs/SDSs/P&IDs, and must be a U.S. Person per ITAR.
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2mo
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Staff Chemical Engineer - Water Systems and Chemistry
Chino, California, United States
HybridFull Time
Jacuzzi Group
Jacuzzi Group: Manufactures and sells hot tubs, spas, and bath products.
5+ YOEBachelor’s in Chemical/Environmental Engineering or Chemistry (ABET); 5+ years water chemistry and water-system development; sanitizer chemistry experience; test protocols and data analysis; strong communication and prioritization.
spectrophotometry, titration, ion chromatography, ORP, pH, conductivity, microbial assays, AOP, UV, ozone, electrolytic chlorination
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2mo
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Chemical Engineer I, NPI & Transfers
Aliso Viejo, California, United States
$63k-$75k/yr OnsiteFull Time
MicroVention
MicroVention: Manufacturer of neurovascular medical devices for stroke treatment.
0+ YOEBSc in Engineering required; 0–2 years manufacturing/process development experience minimum. Proficiency with SolidWorks, inferential statistical analysis, Microsoft Word/Excel/Teams/Outlook. Process validation and DOE/Cpk experience desired.
SolidWorks, Microsoft Word, Microsoft Excel, Microsoft Teams, Microsoft Outlook
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Intern/Co-op - Refining Chemical Engineering Fall 2026
Findlay or El Paso or Anacortes or Wilmington or Martinez or Owensboro or Canton or Canonsburg or Mandan or Salt Lake City or Dickinson or Robinson or Detroit or St Paul Park or Catlettsburg or Garyville or Texas City or Kenai or San Antonio
$33-$42/hr OnsitePart Time, Internship
Marathon Petroleum
Marathon PetroleumNYSE: MPC: Refines and markets petroleum products and renewable fuels.
Must be majoring in Chemical Engineering, strong academic performance, concurrently enrolled in a degree program, valid driver's license, authorized to work in the US indefinitely, availability for multiple co-op/term assignments preferred.
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1mo
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Process Engineer, Chemical and Mechanical Polish (CMP)
Temecula, California, United States
$100k-$140k/yr OnsiteFull Time
Skorpios Technologies
Skorpios Technologies: Designs and manufactures silicon photonics for high-speed optical communications
MS or PhD in EE/Materials/Physics/Chemistry, hands-on CMP/fab processing experience, strong data analysis/statistics and communication skills, ability to support 24/7 manufacturing.
MS Office Word, Microsoft Excel, MS Office PowerPoint, Statistical Process Control (SPC), Design of Experiments (DOE)
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Reliability Engineer
Irvine, California, United States
$85k-$162k/yr OnsiteFull Time
AbbVie
AbbVieNYSE: ABBV: Develops and sells innovative pharmaceutical and biopharmaceutical medicines.
5+ YOEBachelor's in Chemical or Mechanical Engineering, 5+ years reliability engineering experience in cGMP/pharmaceutical environment, CMMS experience, RCFA and reliability analytics, strong communication and problem-solving skills.
CMMS, MAXIMO
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3mo
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Flammability Engineer
Huntington Beach, California, United States
$70k-$110k/yr OnsiteFull Time
Boeing EnCore Interiors
Boeing EnCore InteriorsNYSE: BA: Manufacturer of aircraft cabin interiors including galleys and seating.
1+ YOEBS in physics, chemical engineering, or similar technical field; 1 year experience preferred but not required; strong regulatory knowledge and technical writing.
Catia V5, WindChill PLM
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Process Engineer II
Fontana, California, United States
$80k-$110k/yr OnsiteFull Time
GAF
GAF: Manufactures residential and commercial roofing and waterproofing products.
2+ YOEBachelor's degree in electrical, mechanical, or chemical engineering and 2+ years of related manufacturing experience. Requires engineering fundamentals; Google Suite, PLC, and AutoCAD proficiency preferred.
Google Suite, PLC, AutoCAD, Statistical Process Control (SPC), PPA, FMEA, Fishbone analysis, Standard Operating Procedures (SOPs), Job Safety Analyses (JSAs)
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Environmental Engineer 4
Carlsbad, California, United States
$94k-$156k/yr HybridFull Time
CDM Smith
CDM Smith: Engineering and construction firm for global infrastructure projects.
5+ YOEBachelor's degree in civil, environmental, or chemical engineering preferred, EIT or FE certification, 5 years of related experience, valid driver's license, and water or wastewater engineering expertise.
Microsoft Excel, Microsoft Word, Bluebeam, GIS
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2w
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Pouring Line Engineer
Riverside, California, United States
$69k-$88k/yr OnsiteFull Time
Carpenter Co.
Carpenter Co.: Manufacturer of polyurethane foam and chemical products.
0.5+ YOEBachelor's degree in chemical engineering, chemistry, or mechanical engineering; six months to one year of experience; willingness to work hands-on in production and use lean manufacturing methods.
PLC
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1mo
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Senior Process Engineer
Huntington Beach, California, United States
$85k-$120k/yr OnsiteFull Time
Nikkiso
NikkisoTokyo Stock Exchange: 6376: Manufactures industrial pumps, medical dialysis equipment, and aerospace components.
10+ YOEBachelor's in Chemical Engineering,10+ years in oil & gas/LNG/cryogenic/EPC,advanced process simulation (Aspen HYSYS/Plus/UniSim),skid/modular experience,ability to translate simulation to engineering deliverables.
Aspen HYSYS, Aspen Plus, UniSim
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3w
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Senior Process Engineer
Compton or Rancho Dominguez
$92k-$110k/yr OnsiteFull Time
Henkel
HenkelXETRA: HEN3: Manufactures laundry, beauty, and adhesive products globally.
1+ YOEBachelor's in engineering, 1+ years manufacturing or chemical experience, knowledge of FMEA/PPAP/Control Plans, statistical analysis, strong problem-solving and communication skills.
FMEA, Control Plans, PPAP, Management of Change (MOC)
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2mo
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Solution Engineer - Applications II
Garden Grove, California, United States
$82k-$127k/yr OnsiteFull Time
Saint-Gobain
Saint-GobainEuronext Paris: SGO: Designs, manufactures, and distributes materials for building and industry.
5+ YOEBachelor's degree in materials, chemical, mechanical, or polymer engineering/science required; 5+ years in specialized industries or manufacturing; SolidWorks or AutoCAD proficiency; engineering drawings and GD&T experience.
SolidWorks, AutoCAD, GD&T
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3mo
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Sr. Process Engineer
Los Angeles, California, United States
$100k-$145k/yr OnsiteFull Time
University of California, Los Angeles
University of California, Los Angeles: A public research university providing higher education and research.
5+ YOE5+ years in chemical/process design; project engineer/manager; Aspen Plus; electrochemical systems; EPC collaboration; strong communication.
Aspen Plus, Aspen Icarus, Process simulation
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5d
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Senior Process Engineer
Irvine, California, United States
$85k-$120k/yr OnsiteFull Time
Nikkiso
NikkisoTokyo Stock Exchange: 6376: Manufacturer of industrial fluid equipment and medical devices.
10+ YOEBachelor's degree in Chemical Engineering and 10–15+ years in oil and gas, LNG, cryogenic, or EPC industries; advanced Aspen HYSYS, Aspen Plus, or UniSim proficiency.
Aspen HYSYS, Aspen Plus, UniSim
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2mo
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Principal Electrical Engineer
Long Beach or Richmond
$145k-$213k/yr OnsiteFull Time
Worley
WorleyASX: WOR: Provides engineering and project delivery services for energy and resources.
BS or MS in Electrical Engineering required; strong electrical engineering experience in oil/gas/chemical projects; team leadership and mentoring; knowledge of MV/LV distribution, protective relays, power systems studies; PE preferred.
Microsoft Office Suite, ETAP, SPL
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1mo
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Mechanical Engineer (Ph.D.)
Irvine, California, United States
$140k-$160k/yr OnsiteFull Time
Exponent
ExponentNASDAQ: EXPO: Provides multidisciplinary scientific and engineering consulting for complex problems.
Ph.D. in mechanical/aerospace/chemical engineering with emphasis on fluid mechanics or heat transfer; experimental and HVAC knowledge preferred; strong communication; willing to travel; U.S. citizenship required.
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