New

Senior Analytical Scientist

Advantage Technical
$85,000.00-$100,000.00
paid holidays, 401(k)
United States, California, Menlo Park
Jul 24, 2026
Senior Analytical Scientist Location: Menlo Park, CA Pay Rate: $85,000-100,000 Advance Peptide Discovery with Cutting-Edge Mass Spectrometry Staffmark is seeking an experienced Senior Analytical Scientist for a consulting opportunity supporting an innovative peptide discovery program. If you have hands-on expertise with Thermo Orbitrap mass spectrometers, nanoLC-MS/MS method development, and peptide sequence identification, this is an excellent opportunity to work on high-impact research with potential for recurring project assignments. Education Requirements M.S. or Ph.D. in Analytical Chemistry, Biochemistry, Mass Spectrometry, or a related scientific field Equivalent industry experience will be considered Experience Requirements 3+ years of hands-on experience with nano-flow LC-MS/MS on Thermo instrumentation Experience operating and troubleshooting Thermo Orbitrap mass spectrometers and Xcalibur software Strong knowledge of peptide MS/MS fragmentation and database-based sequence identification Experience developing and optimizing nanoLC-MS workflows Job Duties Perform high-sensitivity nano-flow LC-MS/MS analysis of peptide samples Develop and optimize nanoLC-MS/MS methods and MS/MS acquisition parameters Configure and operate a Thermo Orbitrap XL and Thermo Dionex UltiMate 3000 NanoLC system Analyze and interpret LC-MS/MS data for peptide sequence identification Perform instrument maintenance, calibration, troubleshooting, and performance optimization Resolve nanoLC system issues involving flow paths, columns, emitters, and electrospray stability Document analytical methods, results, and recommendations Collaborate with scientific teams to support peptide hit identification Physical Capabilities Ability to work in a laboratory environment and operate precision analytical instrumentation Strong attention to detail and ability to manage multiple project priorities Benefits Medical, dental, vision, and pet insurance 401(k) Retirement Savings Plan Employee Assistance Program (EAP) Commuter/Parking Accounts People Perks Health Savings Account (HSA) AD&D Insurance Apply Now If you're a mass spectrometry professional looking for a flexible contract opportunity where your expertise can directly impact peptide discovery and scientific advancement, we want to hear from you. Apply today and bring your nanoLC-MS/MS expertise to a rewarding project-based role with Staffmark. What You'll Do Perform advanced peptide analysis, optimize nanoLC-MS/MS methods, troubleshoot high-performance instrumentation, interpret complex mass spectrometry data, and contribute to breakthrough discovery research. The base pay range listed reflects what we reasonably expect to offer for this role. Actual pay may vary based on location, experience, and performance. Depending on the position, benefits may include medical, dental, and vision coverage; retirement and savings plans; paid holidays and time off; supplemental insurance; and additional wellness or incentive programs. About Us Advantage Technical connects top- talent in technology, engineering, and technical fields with forward-looking companies. Advantage Technical is an equal opportunity employer. All applicants will receive consideration without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or veteran status, or any other legally protected status. Advantage Technical offers reasonable accommodations for qualified individuals with disabilities; contact your local branch for inquiries. Advantage Technical is an E-Verify employer. See our Privacy Notice for Candidates and Employees/Contractors at https://smgroupna.com/privacy-notice-for-candidates-and-employees-contractors. By applying, you consent to receive AI-generated and non-AI-generated calls, texts, or emails from Staffmark Group, its affiliates, and partners. Frequency varies and message/data rates may apply. Reply STOP to cancel or HELP for help.