At Eurofins Professional Scientific Services (PSS), the work we do matters—and so do our employees. We are committed to supporting your professional growth and providing opportunities to build a long-term career within the biopharmaceutical industry. At Eurofins PSS, you’ll benefit from supportive teams, career development pathways, work-life balance, and a competitive benefits package.

Eurofins Scientific is a global life sciences leader, delivering a wide range of analytical testing services across multiple industries. From the food you eat and water you drink to the medicines you rely on, Eurofins partners with leading organizations to ensure safety, authenticity, and quality. The company is recognized as a global leader in testing services across food, environmental, pharmaceutical, and cosmetics industries, as well as in agroscience CRO services, genomics, pharmacology, forensics, CDMO services, and clinical study support.

If you’re looking for a rewarding career with a company that values growth and innovation, we encourage you to apply.

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.