134 chemical engineer jobs at 87 companies in Walnut, CA

1w
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Chemical Engineer
Redondo Beach, California, United States
$70k-$100k/yr OnsiteFull Time
Mycronic
MycronicNasdaq Stockholm: MYCR: Develops and manufactures high-precision electronics production equipment.
0+ YOEBachelor's in chemical/material engineering or material science required; 0–3 years' experience; strong oral/written communication; willingness to travel domestically and internationally; must be authorized to work in the U.S.; no visa sponsorship.
2d
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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
2d
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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
1mo
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2026-2027 Facilities Engineering Chemical Engineer
Houston or Bakersfield or Belle Chasse or Midland or Geismar or El Segundo or Pasadena or Pascagoula or Covington or Salt Lake City or Richmond or Ames or Greeley
$108k-$136k/yr OnsiteFull Time
Chevron
ChevronNYSE: CVX: Global energy producing oil, gas, and petrochemicals.
0+ YOEBachelor's or master's in chemical engineering (students in final year considered); up to two years related experience; strong academics, communication, teamwork and problem-solving; ability to drive routinely.
1w
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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.
17h
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Chemical / Materials Engineer – Space Solar
Hawthorne, California, United States
$125k-$160k/yr OnsiteFull Time
Starpath
Starpath: Manufacturing space-rated solar hardware and lunar mining robotics.
1+ YOEBachelor's or master's degree in chemistry, chemical engineering, materials science, applied physics, or related field; 1+ year hands-on experience with photovoltaic, optoelectronic, polymer, or related materials; experiment and data analysis skills.
XRD, XPS, FTIR, DSC, TGA, SEM, AFM, Python, MATLAB, EQE
3mo
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Chemical Propulsion Engineer
Los Angeles, California, United States
$121k-$165k/yr OnsiteFull Time
Apex
Apex: Mass-manufactures standardized satellite buses for commercial and government use.
3+ YOEBachelor's in mechanical, propulsion, or aerospace engineering; 3+ years propulsion design/test; mono/bi-propellant propulsion; pressurized systems; CAD NX/SolidWorks; AS9100; US Person status.
NX, SolidWorks
1mo
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Senior Fire Protection Engineer / Chemical Engineer
Los Angeles or San Francisco or Oakland or Seattle or San Diego or Dallas or Houston or Austin
$112k-$149k/yr HybridFull Time
Arup
Arup: Global professional services firm for the built environment.
5+ YOE2+ MgmtBachelor's or Master's in fire protection/chemical/related engineering; minimum 5 years in fire protection engineering (8 years engineering overall); 2 years managing projects; PE preferred; knowledge of NFPA codes, process safety, and hazard analysis; familiarity with FDS, CONTAM, AutoCAD, Revit, BlueBeam, Microsoft Office.
FDS, CONTAM, AutoCAD, Revit, BlueBeam, Microsoft Office
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
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
1mo
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Chemical Engineering Intern
Akron or Ashtabula or Conroe or Freeport or Houston or The Woodlands or McIntosh or Geismar or Los Angeles
OnsiteFull Time
Huntsman
HuntsmanNYSE: HUN: Manufactures and markets chemical products for consumer and industrial markets.
Pursuing a Bachelor's in Chemical Engineering, minimum 3.0 GPA preferred, strong analytical and communication skills, proficiency in Microsoft Excel/PowerPoint/Word, authorized to work in the U.S. without sponsorship.
Microsoft Excel, Microsoft PowerPoint, Microsoft Word
2mo
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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.
3w
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Chemical Operations Manager
Los Angeles, California, United States
$130k-$195k/yr OnsiteFull Time
General Matter
General Matter: Produces enriched uranium and nuclear fuel for power generation.
8+ YOEBachelor's in chemistry/chemical/nuclear engineering,8+ years in nuclear chemical operations or related roles,knowledge of chemical processing, QA, hazardous materials handling, NRC regulations, and team leadership.
1w
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Senior Associate, Manufacturing Engineer (Chemical Processing) (41857)
Canoga Park, California, United States
$73k-$136k/yr OnsiteFull Time
L3Harris Technologies
L3Harris TechnologiesNYSE: LHX: Aerospace and defense providing mission-critical technology solutions.
2+ YOEBachelor's degree (or equivalent experience) and 2+ years manufacturing engineering experience; knowledge of clean processing/electroplating, EPI creation, process control, Microsoft Office; experience with Delmia/Windchill/ADMS.
Microsoft Word, Microsoft Excel, Microsoft PowerPoint, Delmia, Windchill, ADMS
1mo
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Sr. Process Engineer
Pasadena, California, United States
OnsiteFull Time
Aurorium
Aurorium: Manufacturer of specialty chemicals and performance-enhancing materials.
10+ YOEBachelor's in Chemical Engineering, 10+ years chemical process engineering, PSM/HAZOP/MOC experience, Distributed Control Systems (Honeywell) familiarity, Lean Six-Sigma/DOE skills, project leadership and process optimization expertise.
Distributed Control Systems, Honeywell, PHA, HAZOP, MOC, LOPA, P&ID, PFD, DMAIC, DOE
1mo
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Controls Engineer
Calabasas, California, United States
$120k-$180k/yr HybridFull Time
Wunderlich-Malec
Wunderlich-Malec: Designs and integrates advanced control and automation systems.
5+ YOE5+ years controls engineering experience; BS in Electrical or Chemical Engineering preferred; proficiency with PLC/SCADA/HMI programming, industrial protocols, troubleshooting, and commissioning.
PLC, SCADA, HMI, AVEVA, Ignition, FactoryTalk, WinCC, Siemens TIA Portal, Rockwell Studio 5000, FactoryTalk ViewStudio, Ignition Perspective/Vision, Modbus, Ethernet/IP, Profibus, ladder logic, structured text
1w
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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
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
2mo
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Manufacturing Engineer II
Sylmar, California, United States
$82k-$141k/yr OnsiteFull Time
Abbott
AbbottNYSE: ABT: Manufactures medical devices, diagnostics, and nutritional health products.
3+ YOEBachelor's in Mechanical/Industrial/Chemical/Biomedical engineering; 3+ years manufacturing engineering in medical devices; strong verbal/written communication; willing to travel ~25%.
6d
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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)