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Environmental Characterization/Remediation Geologist/Hydrogeologist
Irvine, California, United States
$71k-$107k/yr HybridFull Time
3+ YOEBachelor's in geology or related field, 3+ years delivering environmental site characterization/remediation projects, 40-hr HAZWOPER (or ability to attain), EMR not specified, strong verbal/written communication and field oversight skills.
2w
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Project Scientist Position 2026-2027
Irvine, California, United States
$104k-$229k/yr OnsiteFull Time
Ph.D. in Materials Science or related field required; experience in advanced materials, manufacturing, characterization, biomaterials, energy materials, modeling, or nanoscale materials preferred.
2mo
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Sr. III-V & Active Modulator/Photodiode Scientist
Temecula, California, United States
$140k-$180k/yr OnsiteFull Time
5+ YOESenior-level expert in InP MZM design/characterization; MS/PhD in physics/EE/materials; extensive industrial experience; strong analytical and communication skills.
2mo
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Sr Research Engineer - Polymer Materials (Fontana, CA, US, 92337)
Fontana, California, United States
$120k-$135k/yr OnsiteFull Time
0+ YOEPhD in polymer science/engineering or MS with 3–10 years of experience; PVC expertise; AI-assisted material characterization; travel ~35%; strong communication.
PVC, extrusion, formulation development, DSC, TGA, DMA, rheometer
2w
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Scientist II
Carlsbad, California, United States
$90k-$180k/yr OnsiteFull Time
5+ YOEBachelor's in biological/physical sciences or mathematics, 5+ years research experience, practical lab skills, molecular biology and protein characterization experience, strong problem-solving and teamwork.
PCR, qPCR, RT-PCR, HPLC, SDS-PAGE, ELISA, Biacore
1w
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Sr Scientist I Analytical Chemistry- Mass Spec
Irvine, California, United States
$97k-$184k/yr OnsiteFull Time
Extensive mass spectrometry experience (LC-MS, TOF, Orbitrap) for protein characterization, method development, and regulatory-compliant analytical work; advanced degree or equivalent experience expected.
LC-MS, TOF, Orbitrap, mass spectrometry
1mo
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Senior Materials Engineer - Golf Ball R&D
Carlsbad, California, United States
$97k-$146k/yr OnsiteFull Time
5+ YOEMS (or equivalent) in materials-related field, 5+ years polymer/materials R&D experience, proficiency in materials characterization and polymer processing, strong project management and communication skills.
2w
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Scientist II – Oligonucleotide Process Development, Manufacturing Development and Scale-Up
Carlsbad, California, United States
$86k-$156k/yr OnsiteFull Time
4+ YOEHands-on solid-phase oligonucleotide synthesis experience, LC/MS and HPLC/UPLC characterization, strong scientific writing, and ability to support process development, scale-up, and tech transfer.
Cytiva ÄKTA oligoyne, Oligopolist, GE/Cytiva flow-through platforms, LC/MS, UPLC, IEX-HPLC, RP-HPLC, Waters LC/MS (Xevo), Waters LC/MS (SYNAPT), Waters LC/MS (ACQUITY-MS), MassLynx, UNIFI, JMP, Minitab
1w
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Sr. RFIC Design Engineer (RFIC Engineering)
Redmond or Irvine or Palo Alto
OnsiteFull Time
5+ YOEBachelor's in EE/CE/CS,5+ years RF integrated circuit experience,ability to design and characterize RF/analog/mixed-signal ICs;ITAR-eligible status required.
Spectre, ADS, HFSS, Momentum, spectrum analyzer, vector signal analyzer, vector signal generator, network analyzer
1mo
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Advanced Packaging Engineer
San Diego or Vista or Santa Clara or Colorado Springs
$187k-$212k/yr OnsiteFull Time
15+ YOESenior individual contributor with 15+ years in optical/optoelectronic or microelectronics development; BS in engineering required (MS/PhD preferred); expertise in materials, packaging architectures, process development, characterization, and technical leadership.
1mo
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R&D Engineer – Fiber Optic Test Equipment
Vista, California, United States
$115k-$145k/yr OnsiteFull Time
5+ YOEBachelor's in engineering/physics, 5+ years analog/mixed-signal design with ≥3 years electro-optical experience, proficiency with Altium/OrCAD/LTspice, familiarity with fiber connectors and lab characterization instruments.
Altium, OrCAD, LTspice, C
4w
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Senior Thin Film Engineer
Irvine, California, United States
$100k-$140k/yr OnsiteFull Time
3+ YOEBachelor's in Materials Science, Physics, or Engineering; 3+ years thin film manufacturing experience; experience with deposition chamber hardware, troubleshooting, and process characterization; strong communication; Microsoft Excel and PowerPoint proficiency.
Microsoft Excel, Microsoft PowerPoint
3d
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Systems Engineer II
Irvine, California, United States
$84k-$134k/yr OnsiteFull Time
2+ YOEBachelor's in engineering, minimum 2 years systems engineering or product development experience, system-level characterization, test development, risk analysis, statistical methods; familiarity with medical device standards and embedded systems preferred.
Polarion, RV&S, Python, MATLAB
3w
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Senior Staff Engineer, Analog Mixed Signal Design
Irvine or Livonia
$146k-$201k/yr OnsiteFull Time
2+ YOEPhD (2–4 years) or MS EE (3–5 years) with strong analog/mixed-signal design experience, familiarity with data converters, PLLs, FinFET nodes, lab characterization, and cross-functional communication.
2w
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Engineering Technician 2
Irvine, California, United States
OnsiteTemporary
1+ YOEAA with 1–2 years materials characterization/semiconductor packaging experience or BA in EE/Materials/Physics; hands-on cross-section prep, SEM/EDX, X-ray, optical microscopy, documentation and problem-solving skills.
SEM/EDX, X-ray inspection, optical microscopy, MS Office Suite
1mo
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Senior Staff / Principal Product Engineer
Aliso Viejo, California, United States
OnsiteFull Time
5+ YOEBachelor's in Electrical Engineering, 5+ years product engineering experience in semiconductors, ATE and bench characterization experience, proficiency with Microsoft Excel/JMP/YieldHub, knowledge of JEDEC and AEC-Q100, strong statistical and cross-functional collaboration skills.
ATE, Microsoft Excel, JMP, YieldHub
1mo
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Senior Staff Engineer, Analog Mixed Signal Design
Irvine or California
$146k-$201k/yr OnsiteFull Time
3+ YOEPhD (3–5 yrs) or MS EE (5–7 yrs) with strong analog/high-speed design experience in ADC/DAC, amplifiers, PLLs, regulators and FinFET nodes; lab characterization and silicon debug; strong communication.
3w
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Senior Staff Analog and Mixed-Signal IC Design Engineer
Irvine, California, United States
$150k-$221k/yr OnsiteFull Time
3+ YOEDesign mixed-signal CMOS transceiver/SERDES circuits (PLLs, ADCs, regulators, TX/RX, CDRs), perform verification with SPICE/Spectre/MATLAB, lab characterization, and produce design documentation. Bachelor’s degree plus relevant experience required.
SPICE, Spectre, MATLAB, Hsim, Verilog
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R&D Food Scientist
Irvine, California, United States
$80k-$100k/yr OnsiteFull Time
3+ YOEMinimum 3 years experience; Master's in Food Science or related preferred; expertise in food/beverage/supplement formulation, food chemistry, microbiology, processing, protein characterization; customer-facing technical support; project management; willing to travel up to 20%.
AI
3w
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Senior Staff Analog and Mixed-Signal IC Design Engineer
Irvine, California, United States
$150k-$221k/yr OnsiteFull Time
5+ YOEDeep sub-micron CMOS mixed-signal IC design experience (PLLs, ADC/DAC, TX/RX, CDRs), SPICE/Spectre/MATLAB skills, lab characterization and layout experience, bachelor\u0002s degree in EE/CS or related, 5+ years experience.
SPICE, Spectre, MATLAB, Hsim, Verilog
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