Postdoctoral Research Scientist Visa Sponsorship Jobs in California
Postdoctoral research scientist visa sponsorship jobs in California are concentrated at research universities like UC Berkeley, UCLA, and UC San Diego, national laboratories including Lawrence Berkeley and SLAC, and life sciences companies across the Bay Area and San Diego. Most positions involve H-1B visa sponsorship or J-1 visa exchange visitor programs through institutional sponsors.
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Get Access To All JobsINTRODUCTION
The laboratory of Dr. Kai Zhou at the Buck Institute for Research on Aging seeks a hands-on mass spectrometry scientist or postdoctoral researcher to establish and operate a structural mass spectrometry platform. We welcome candidates with expertise in native mass spectrometry, crosslinking mass spectrometry, HDX-MS, or intact-protein/top-down analysis. Our laboratory investigates how protein structure, interactions, and assembly change with aging and disease. Projects include intrinsically disordered proteins (IDR/IDPs), protein complexes, and ribosomes. The successful candidate will take substantial ownership of instrument operation, method development, data quality, and biological interpretation. The role offers opportunities to develop new workflows and pursue scientific questions in collaboration with protein biochemists, structural biologists, and computational researchers.
LOCATION
Location: Novato, CA (on-site)
Responsibilities
- Establish, optimize, and run structural-MS workflows, including low-flow LC for bottom-up proteomics and crosslinking, and a separate LC workflow for intact-protein and native MS analysis
- Develop native-MS and/or crosslinking-MS methods to characterize protein-complex composition, stoichiometry, interactions, and structural changes. Explore intact-complex analysis and complex-down MS workflows where experimentally feasible
- Prepare and evaluate samples, including buffer exchange, desalting, crosslinking, digestion, and enrichment as appropriate; optimize native SEC or rapid online buffer exchange while assessing sample integrity and complex stability
- Optimize ionization, ion transmission, precursor isolation, and fragmentation for heterogeneous proteins and assemblies; assess instrument performance, troubleshoot problems, and coordinate maintenance and training with vendor specialists
- Establish quality-control standards, reproducible protocols, and reliable workflows for increasing sample throughput, including automated or unattended acquisition, batch QC, carryover checks, and reproducible switching between native and denaturing analyses
- Analyze and interpret spectra with appropriate controls, uncertainty assessment, and validation; distinguish solution-state interactions from source-induced dissociation or adducts and assess crosslink identifications and proteoform/PTM assignments as appropriate
- Maintain clear experimental records and organize raw data, analysis files, and protocols
- Collaborate on experimental design, train colleagues, and contribute to publications and consortium deliverables
BASIC QUALIFICATIONS
Required
- PhD in analytical chemistry, biochemistry, biophysics, structural biology, or a related discipline. Experienced master’s-level applicants with substantial independent instrument-operation and method-development experience may be considered for an appropriate staff appointment
- Demonstrated hands-on operation of a high-resolution mass spectrometer, including acquisition-method setup, performance assessment, and troubleshooting
- Substantial practical expertise in at least one of the following: native MS, crosslinking MS, HDX-MS, or intact-protein/top-down MS
- Experience connecting sample preparation, acquisition settings, data analysis, and experimental controls to reliable conclusions
- Strong scientific reasoning, careful documentation, and the ability to work independently and collaboratively
PREFERRED QUALIFICATIONS
- Native electrospray, native MS, intact-protein/top-down or complex-down analysis, or multistage fragmentation
- Crosslinker selection, reaction optimization, enrichment, crosslinked-peptide identification, and false-discovery-rate assessment
- Recombinant protein purification, sample-integrity assessment, and troubleshooting aggregation or heterogeneity
- Analysis of disordered proteins, heterogeneous assemblies, or ribonucleoprotein complexes
- Workflow automation, quantitative analysis, or scripting for reproducible data processing; familiarity with crosslinking or proteoform-analysis software. Experience supporting complementary bottom-up proteomics or metabolomics applications is also welcome
Candidates need not have experience in every listed technique. We value demonstrated depth, ownership, and the ability to learn complementary approaches.
COMPENSATION, BENEFITS & ADDITIONAL INFORMATION
- Annual salary range: $75,920 - $85,500, commensurate with qualifications and experience
- Generous benefits package including health insurance, paid parental leave, vacation/sick, and 401(k) with 5% employer match
- Visa sponsorship (J visa) is available for this position
ABOUT THE BUCK INSTITUTE
Our success will ultimately change healthcare. At the Buck, we aim to end the threat of age-related diseases for this and future generations by bringing together the most capable and passionate scientists from a broad range of disciplines to identify and impede how we age. We are an independent, non-profit institution located in Marin County, CA, with the goal of increasing human healthspan, or the healthy years of life. Globally recognized as the pioneer and leader in efforts to target aging—the number one risk factor for diseases including Alzheimer’s, Parkinson’s, cancer, macular degeneration, heart disease, and diabetes—the Buck seeks to help people live better longer. We are an equal-opportunity employer and strive to create an atmosphere where diversity of identity, experience, and background is welcomed, valued, and supported. Candidates who contribute to this diversity are strongly encouraged to apply.
TO APPLY
- Please submit a CV, a brief cover letter, and contact information for three references
- Postdoctoral applicants, please include your completed or expected PhD date
- In your cover letter, describe one representative MS project and specify:
+ The instrument and techniques you used
+ Which sample-preparation, acquisition, troubleshooting, and analysis steps you personally performed
+ A technical problem you solved and how you verified the solution
+ Your scientific contribution and the resulting publication, method, dataset, or operational improvement
INTRODUCTION
The laboratory of Dr. Kai Zhou at the Buck Institute for Research on Aging seeks a hands-on mass spectrometry scientist or postdoctoral researcher to establish and operate a structural mass spectrometry platform. We welcome candidates with expertise in native mass spectrometry, crosslinking mass spectrometry, HDX-MS, or intact-protein/top-down analysis. Our laboratory investigates how protein structure, interactions, and assembly change with aging and disease. Projects include intrinsically disordered proteins (IDR/IDPs), protein complexes, and ribosomes. The successful candidate will take substantial ownership of instrument operation, method development, data quality, and biological interpretation. The role offers opportunities to develop new workflows and pursue scientific questions in collaboration with protein biochemists, structural biologists, and computational researchers.
LOCATION
Location: Novato, CA (on-site)
Responsibilities
- Establish, optimize, and run structural-MS workflows, including low-flow LC for bottom-up proteomics and crosslinking, and a separate LC workflow for intact-protein and native MS analysis
- Develop native-MS and/or crosslinking-MS methods to characterize protein-complex composition, stoichiometry, interactions, and structural changes. Explore intact-complex analysis and complex-down MS workflows where experimentally feasible
- Prepare and evaluate samples, including buffer exchange, desalting, crosslinking, digestion, and enrichment as appropriate; optimize native SEC or rapid online buffer exchange while assessing sample integrity and complex stability
- Optimize ionization, ion transmission, precursor isolation, and fragmentation for heterogeneous proteins and assemblies; assess instrument performance, troubleshoot problems, and coordinate maintenance and training with vendor specialists
- Establish quality-control standards, reproducible protocols, and reliable workflows for increasing sample throughput, including automated or unattended acquisition, batch QC, carryover checks, and reproducible switching between native and denaturing analyses
- Analyze and interpret spectra with appropriate controls, uncertainty assessment, and validation; distinguish solution-state interactions from source-induced dissociation or adducts and assess crosslink identifications and proteoform/PTM assignments as appropriate
- Maintain clear experimental records and organize raw data, analysis files, and protocols
- Collaborate on experimental design, train colleagues, and contribute to publications and consortium deliverables
BASIC QUALIFICATIONS
Required
- PhD in analytical chemistry, biochemistry, biophysics, structural biology, or a related discipline. Experienced master’s-level applicants with substantial independent instrument-operation and method-development experience may be considered for an appropriate staff appointment
- Demonstrated hands-on operation of a high-resolution mass spectrometer, including acquisition-method setup, performance assessment, and troubleshooting
- Substantial practical expertise in at least one of the following: native MS, crosslinking MS, HDX-MS, or intact-protein/top-down MS
- Experience connecting sample preparation, acquisition settings, data analysis, and experimental controls to reliable conclusions
- Strong scientific reasoning, careful documentation, and the ability to work independently and collaboratively
PREFERRED QUALIFICATIONS
- Native electrospray, native MS, intact-protein/top-down or complex-down analysis, or multistage fragmentation
- Crosslinker selection, reaction optimization, enrichment, crosslinked-peptide identification, and false-discovery-rate assessment
- Recombinant protein purification, sample-integrity assessment, and troubleshooting aggregation or heterogeneity
- Analysis of disordered proteins, heterogeneous assemblies, or ribonucleoprotein complexes
- Workflow automation, quantitative analysis, or scripting for reproducible data processing; familiarity with crosslinking or proteoform-analysis software. Experience supporting complementary bottom-up proteomics or metabolomics applications is also welcome
Candidates need not have experience in every listed technique. We value demonstrated depth, ownership, and the ability to learn complementary approaches.
COMPENSATION, BENEFITS & ADDITIONAL INFORMATION
- Annual salary range: $75,920 - $85,500, commensurate with qualifications and experience
- Generous benefits package including health insurance, paid parental leave, vacation/sick, and 401(k) with 5% employer match
- Visa sponsorship (J visa) is available for this position
ABOUT THE BUCK INSTITUTE
Our success will ultimately change healthcare. At the Buck, we aim to end the threat of age-related diseases for this and future generations by bringing together the most capable and passionate scientists from a broad range of disciplines to identify and impede how we age. We are an independent, non-profit institution located in Marin County, CA, with the goal of increasing human healthspan, or the healthy years of life. Globally recognized as the pioneer and leader in efforts to target aging—the number one risk factor for diseases including Alzheimer’s, Parkinson’s, cancer, macular degeneration, heart disease, and diabetes—the Buck seeks to help people live better longer. We are an equal-opportunity employer and strive to create an atmosphere where diversity of identity, experience, and background is welcomed, valued, and supported. Candidates who contribute to this diversity are strongly encouraged to apply.
TO APPLY
- Please submit a CV, a brief cover letter, and contact information for three references
- Postdoctoral applicants, please include your completed or expected PhD date
- In your cover letter, describe one representative MS project and specify:
+ The instrument and techniques you used
+ Which sample-preparation, acquisition, troubleshooting, and analysis steps you personally performed
+ A technical problem you solved and how you verified the solution
+ Your scientific contribution and the resulting publication, method, dataset, or operational improvement
Postdoctoral Research Scientist Job Roles in California
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Search Postdoctoral Research Scientist Jobs in CaliforniaPostdoctoral Research Scientist Jobs in California: Frequently Asked Questions
Which companies and institutions sponsor visas for postdoctoral research scientists in California?
Major sponsors include University of California campuses (Berkeley, San Diego, Los Angeles, San Francisco), Stanford University, California Institute of Technology, national laboratories like Lawrence Berkeley National Laboratory and Lawrence Livermore, and life sciences companies such as Genentech, Gilead Sciences, and AstraZeneca. These employers have established immigration support offices and regularly sponsor H-1B and J-1 visas for postdoctoral researchers.
Which visa types realistically apply to postdoctoral research scientist roles in California?
The J-1 exchange visitor visa is the most common path for postdoctoral researchers, sponsored through the host institution's designated J-1 sponsor program. The H-1B is an option when the role qualifies as a specialty occupation requiring a directly related doctoral-level degree. For nationals of Chile or Singapore, the H-1B1 visa offers a cap-exempt alternative. EB-1 and EB-2 NIW green card pathways are also pursued by researchers with strong publication records.
Which cities in California have the most postdoctoral research scientist visa sponsorship jobs?
The San Francisco Bay Area leads, driven by UC Berkeley, UCSF, Stanford, and a dense cluster of biotechnology companies in South San Francisco and Emeryville. San Diego is the second major hub, anchored by UC San Diego, the Salk Institute, Scripps Research, and a large biopharma sector. Los Angeles offers positions at UCLA, USC, and Cedars-Sinai. Sacramento has fewer industry roles but hosts UC Davis research programs.
How to find postdoctoral research scientist visa sponsorship jobs in California?
Migrate Mate lists postdoctoral research scientist positions at California employers with verified visa sponsorship history, searchable by city and research field. This saves time compared to manually screening job postings for sponsorship eligibility. University career portals and institutional HR offices also post postdoc openings, but Migrate Mate surfaces sponsorship-verified roles specifically, making it easier to focus your applications on employers already set up to file on your behalf.
What should postdoctoral research scientists know about visa sponsorship in California's research sector?
California institutions typically have dedicated international scholar services offices that manage J-1 sponsorship in-house, making the process more straightforward than in smaller employers. J-1 postdoc positions often carry a two-year home residency requirement under section 212(e), which affects future visa options including H-1B. Industry postdoc roles at life sciences companies generally offer H-1B sponsorship rather than J-1. Confirming visa type and sponsorship structure before accepting an offer is important given these differences.
What is the prevailing wage for sponsored postdoctoral research scientist jobs in California?
U.S. employers sponsoring a visa must pay at least the prevailing wage, which is what workers in the same role, area, and experience level typically earn. The Department of Labor sets this rate to make sure companies aren't hiring foreign workers simply because they'd accept lower pay than a U.S. worker. It varies by job title, location, and experience. You can look up current prevailing wage rates for any occupation and location using the OFLC Wage Search page.