Proteomics Mass Spectrometrist

We are seeking a Proteomics Mass Spectrometrist to support advanced protein and peptide characterization using high-resolution LC-MS/MS. This role focuses on proteomic workflows, including peptide mapping, post-translational modification (PTM) analysis, and method development to enable in-depth molecular characterization.

The ideal candidate will bring strong expertise in proteomics, mass spectrometry-based protein analysis, and fragmentation techniques in a laboratory setting.

Key Responsibilities

• Develop, optimize, and execute LC-MS/MS workflows for proteomic analysis, including peptide mapping and protein characterization
• Perform identification and localization of post-translational modifications (PTMs) using high-resolution MS and MS/MS techniques
• Apply advanced fragmentation methods (CID, HCD, ETD) to enable confident peptide sequencing and modification site assignment
• Optimize protein digestion and sample preparation workflows to improve sequence coverage and detection of low-abundance peptides
• Analyze and interpret complex proteomics datasets using industry-standard bioinformatics and data analysis tools
• Contribute to the development and refinement of proteomics methods and workflows to support broader analytical initiatives
• Document experimental procedures, results, and data interpretations in accordance with industry and regulatory standards
• Communicate scientific findings clearly to cross-functional teams and stakeholders

Required Qualifications

• Hands-on experience with LC-MS/MS in proteomics, including peptide mapping and PTM analysis
• Experience with fragmentation techniques such as CID, HCD, and ETD
• Strong data analysis and problem-solving skills
• Ability to work both independently and collaboratively in a team environment
• BS (5–8 years), MS (3–6 years), or PhD (0–2 years) in Chemistry, Biochemistry, Proteomics, or a related field (or equivalent experience)
• Authorization to work in the United States indefinitely without sponsorship

Preferred Qualifications

• Experience with LC-MS/MS method development and optimization for proteomics applications
• Familiarity with proteomics software (e.g., Proteome Discoverer, MaxQuant, or similar tools)
• Experience working in GMP or regulated laboratory environments
• Knowledge of LIMS or other laboratory data management systems

The position is Full Time, Monday through Friday, 8am-5pm, with overtime as needed. Candidates living within a commutable distance of Andover, MA, are encouraged to apply.

What we offer:

• Excellent full-time benefits, including comprehensive medical coverage, dental, and vision options
• Life and disability insurance
• 401(k) with company match
• Paid vacation and holidays
• Yearly goal-based bonus & eligibility for merit-based increases
• Hourly rate is between $30.00-$33.00, depending on education and experience

Eurofins USA PSS Insourcing Solutions is a Disabled and Veteran Equal Employment Opportunity employer.