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Senior Laser & SOA Characterization Engineer
Boston or Mountain View
$210k-$267k/yr HybridFull Time
5+ YOEPhD or Master's in EE/Physics/Photonics, 5+ years hands-on semiconductor laser/SOA characterization, strong lab instrumentation and Python automation skills, experience with laser physics and device analysis, strong communication.
Python, PyVISA, LabVIEW, MATLAB
1mo
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Senior Characterization & Reliability Engineer for Power Semiconductors
Somerville, Massachusetts, United States
HybridFull Time
5+ YOEMaster's/PhD in electrical engineering or 5+ years' industry experience. Expertise in power device characterization (IV, CV, pulsed IV), JEDEC reliability standards, PCB/test-board design, Python/MATLAB data analysis, and GaN/SiC device experience.
Python, MATLAB, curve tracer, semiautomatic probe station, high-voltage test instrumentation, JEDEC, HTRB, HTGB, TDDB
2mo
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Scientist II/Senior Characterization Scientist, Condensed Matter
Cambridge, Massachusetts, United States
$128k-$198k/yr OnsiteFull Time
1+ YOEPhD in Materials Science, Physics, Chemistry, or related field; 1–5 years postdoc/industry; expertise in magnetic or superconducting materials; experience with VSM/SQUID/PPMS; strong data analysis; good communication.
VSM, SQUID magnetometry, PPMS, Python
1mo
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Analytical Characterization Development Scientist - LNPs
Boston, Massachusetts, United States
$37-$41/hr OnsiteFull Time
3+ YOEB.S. in a related field with 3+ years biotech experience; proficiency with HPLC/LCMS/Capillary Electrophoresis and Waters/Agilent LCs; experience with OpenLab, Empower, ELN; method development/validation for mRNA/LNP.
HPLC, LCMS, Capillary Electrophoresis, Waters LC, Agilent LC, OpenLab, Empower, ELN, Benchling, GC, HIAC, SEC-MALS
1mo
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Principal Scientist – Protein Formulation & Biophysical Characterization (High-Concentration Biologics)
Andover, Massachusetts, United States
$106k-$177k/yr OnsiteFull Time
3+ YOEPhD with 3–5 years in biologics formulation/biophysics; strong hands-on biophysical characterization; experience with subcutaneous delivery considerations and cross-functional collaboration.
Biophysical characterization, DLS, DSC, DSF, SEC-MALS, NTA, CD, FTIR, Fluorescence spectroscopy, Rheology
1w
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Senior Scientist I, Production and Characterization
Worcester, Massachusetts, United States
$97k-$184k/yr OnsiteFull Time
0+ YOEDegree in a biological/chemical engineering or related field; deep expertise in high-throughput antibody production and analytics; proficiency with protein analytics, automated liquid handlers, LIMS, AI tools, and programming (Python,C#).
SEC, HIC, MS, ELISA, Lynx, Hamilton, Tecan, Cellario, Green Button Go, Overlord, Genera, LIMS, Claude, Codex, Python, C#
2w
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Associate Scientist, Biologics Characterization
Lexington, Massachusetts, United States
$104k-$163k/yr OnsiteFull Time
3+ YOEHands-on laboratory experience in biologics characterization using mass spectrometry, chromatography and biophysical methods; ability to design, execute, analyze, and report experiments; strong documentation and communication skills.
LC-MS, peptide mapping, intact mass, glycan analysis, HPLC/UPLC, SEC-HPLC, RP-HPLC, IEX-HPLC, HIC-HPLC, icIEF, CE-SDS, AUC, CD, DSC, DLS, fluorescence spectroscopy, ELN, LIMS
1mo
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Senior Scientist I - Mass Spectrometry/Protein Characterization (Cambridge, Massachusetts, US)
Cambridge, Massachusetts, United States
$118k-$154k/yr HybridFull Time
6+ YOEAdvanced LC/MS expertise for intact protein and peptide mapping, experience with Waters and Thermo instrumentation and software, peptide mapping/PTM knowledge, data analysis tools, and ability to mentor scientists; PhD or BS/MS with extensive industry experience.
LC/MS, Waters Connect, Thermo Scientific Xcalibur, Thermo Orbitrap, UPLC, ProteinMetrics Byos, Biopharma Finder, Proteome Discoverer, analytical SEC, SEC-MALS, mass photometry, FidaNeo, NanoDSF
2w
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Senior Analytical Chemist - Solid State Characterization
Cambridge, Massachusetts, United States
$101k-$145k/yr OnsiteFull Time
3+ YOEPhD in chemistry/materials/pharmaceutical science, 3+ years postdoctoral pharma experience, expertise in solid-state characterization and polymorphism/salt selection, experience with XRPD/DSC/TGA and related techniques.
XRPD, DSC, TGA, SEM, Raman, IR, laser granulometry, sc-XRD, PDS
1d
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Scientist II (Pre-formulation and Solid State Characterization)
Watertown, Massachusetts, United States
$129k-$163k/yr OnsiteFull Time
2+ YOEPre-formulation and solid-state characterization experience for small molecules; PhD or Master in material/pharmaceutical sciences; expertise with PLM, SEM, PXRD, TGA, DSC, DVS, NMR, FTIR, Raman, UV/Vis; 2+ years (PhD) or 4+ years (Master) industry experience.
PLM, SEM, PXRD, TGA, DSC, DVS, NMR, FTIR, Raman, UV/Vis
1w
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Laboratory Technician III, Antibody Production & Characterization
Boston, Massachusetts, United States
$52k-$75k/yr OnsiteFull Time
High school diploma plus a 1-year biotechnology certificate, hands-on micropipetting and sterile technique, Excel and basic computer skills, attention to SOPs, and ability to work in a team.
Microsoft Excel
3w
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Process Development Associate Scientist- Biological and Structural Characterization
Cambridge, Massachusetts, United States
$90k-$122k/yr OnsiteFull Time
1+ YOEMaster's+1 year or Bachelor's+3 years scientific experience; assay development, cell-based bioassays, cell culture, molecular biology, analytical method qualification/transfer, and strong documentation skills.
5d
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Director, Analytical Development
Lexington, Massachusetts, United States
$200k-$226k/yr HybridFull Time
7+ YOELead analytical strategy and protein characterization for biologics; MS+10yrs or PhD+7yrs; expertise in protein characterization, method development, and regulatory CMC support.
CE (CSDS, CIEF and CGE DNA), qPCR, MFI/HIAC, DSF, DLS, DSC, LCMS/MS peptide mapping & subunit analysis, IA, SEC, RP, HIC, IEX, UV/Vis, luminescence, ELISA
2mo
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Scientist - Analytical Development, Regeneron Cell Medicines (RCM)
Cambridge, Massachusetts, United States
$94k-$153k/yr OnsiteFull Time
6+ YOE6-8+ years in characterization and quantitative analysis of lentiviral vectors; experience with biophysical characterization methods (DLS, MRPS, fluorescent labeling); ability to design and interpret experiments; strong communication and documentation skills.
DLS, MRPS, fluorescent labeling assays
2mo
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Process Engineer - Ion Implant
Beverly, Massachusetts, United States
$68k-$102k/yr OnsiteFull Time
3+ YOESupport ion implant tool characterization, data analysis, and customer demonstrations; collaborate cross-functionally to optimize processes.
JMP, Minitab, Matlab, SPC
1w
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Scientist I, Guide RNA Chemistry, Prime Medicine
Cambridge, Massachusetts, United States
$121k-$147k/yr OnsiteFull Time
0+ YOEExpertise in oligonucleotide and phosphoramidite chemistry, hands-on RNA synthesis and purification, analytical characterization experience, strong troubleshooting and collaboration skills.
MerMade 12, Dr. Oligo, HPLC, UPLC, LC-MS (Orbitrap), UV-Vis spectroscopy
3mo
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Materials Engineer
Cambridge, Massachusetts, United States
$70k-$95k/yr OnsiteFull Time
2+ YOEMaster's in Materials Science with 2+ years industry experience; hands-on materials characterization; polymer chemistry knowledge; MEMS/cleanroom preferred.
NMR, TGA, Tensile Testing, FTIR, GPC, DSC, Rheometry, Microfabrication Cleanroom
2w
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Research Scientist I - Protein Sciences and Structural Biology
Cambridge, Massachusetts, United States
$88k-$124k/yr OnsiteFull Time
0+ YOEPh.D. in a relevant life science, experience with recombinant protein design, expression, purification, and characterization; protein crystallography and biophysical methods a plus.
FPLC, SDS-PAGE, Western blot, LC/MS, AKTA pure, ITC, DSC, SPR, NMR
1w
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Silicon Validation Engineer
Waltham, Massachusetts, United States
OnsiteFull Time
Perform lab characterization and validation of analog and mixed-signal embedded circuits and collaborate with cross-functional teams to support mobile SoC launches.
1mo
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Senior Photonics Test Engineer
Boston, Massachusetts, United States
$127k-$166k/yr OnsiteFull Time
3+ YOE3+ years in hands-on PIC device characterization; Master or PhD in engineering; Python/MATLAB for test automation; room-temperature and cryogenic photonics testing.
Python, MATLAB, cryogenic testing, test instrumentation, laser sources, fiber components