Mass Spectrometry Scientist/Engineer

Are you looking for an exciting, innovative company with over 100 years of excellence and commitment to ethical business? Amentum is a trusted partner to United States government agencies, allied governments, and corporations worldwide supporting critical programs across a broad range of domains. Seeking a driven, hands-on scientist/engineer/technician with practical experience in mass spectrometry to develop, lead, and support our capabilities in residual gas analysis (RGA), gas chromatography/mass spectroscopy (GC/MS), liquid chromatography/mass spectroscopy (LC/MS), time of flight secondary ion mass spectrometry (ToF-SIMS). The position will split time approximately 50% on RGA and 50% on other MS techniques. The successful candidate will be responsible for instrument operation, method development, maintenance coordination, consumable management, data interpretation and technical reporting.

Primary Duties Include:

• Instrument ownership and capability development
• Establish, develop and maintain MS programs
• Provide technical oversight for data and methods
• Develop standard operating procedures and test plans
• Development of quantitative and semi-quantitative methods for emergent, non-standard requests
• Analytical operations
• Perform RGA and other MS measurements for materials characterization, contamination, and seal integrity analysis
• Equipment maintenance
• Coordinate preventative maintenance and service with OEMs
• Diagnose basic maintenance issues and work with OEMs to resolve
• Ensure instrument performance through routine checks and calibrations
• Data Analysis, reporting, and communication
• Interpret MS and RGA data providing clear technical conclusions
• Prepare reports and presentations for customers/stakeholders
• Maintain organized records of experiments, maintenance
• Communicate results to both technical and non-technical audiences
• Work independently or collaboratively on projects as needed
  
  

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Note from Hiring Manager: I would encourage you to apply even if you don’t have a background in all essential job functions. Skills can be taught via training and from other individuals on the team. The work we complete for our customer is unique. What we seek is an engineer with a strong work ethic, desire to learn, good communication skills, and a willingness to remain dynamic.

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Minimum Requirements:

• Bachelor’s degree in chemical engineering, chemical engineering technology, or other related discipline.
• Lab internship or 2+ years relevant professional experience
• Must be able to obtain and maintain and active Secret clearance (interim is required to start, US citizenship is required to obtain a security clearance)
  
  

The successful candidate will demonstrate working knowledge of:

• Mass spectrometry principles and applications
• Instrument operation, calibration and performance verification for MS instrumentation platforms
• Working knowledge of microelectronic packaging
• Method development and optimization for MS analysis
• Working knowledge of industry standards pertaining to the test and evaluation of materials
• Working knowledge of analytical techniques to identify and characterize organic materials
• Working knowledge of high vacuum/ultra-high vacuum instrumentation is a plus
• Proficient in the use of at least one of the following analytical instruments
• RGA or internal vapor analysis
• GC/MS

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• LC/MS
• Effective technical communication between peers and customers
• Rigorous and succinct summarization of technical results in a formal, written report using MS Word and MS PowerPoint
• Document procedures, follow documented procedure
  
  

The successful candidate will have the following abilities:

• Work independently and collaboratively within cross-functional teams
• Deductive reasoning necessary to interpret how individual laboratory results apply to a larger data package
• Laboratory skills necessary to perform rigorous tests and evaluations using analytical equipment
• Ability to adapt industry standard test and evaluation methods to the specific needs of a technical project
  
  

Preferred Requirements:

• Master’s degree in chemical engineering
• Active Secret security clearance
  
  

Compensation Details:

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$110,000 - $150,000

The compensation range or hourly rate listed for this position is provided as a good-faith estimate of what the company intends to offer for this role at the time this posting was issued. Actual compensation may vary based on factors such as job responsibilities, education, experience, skills, internal equity, market data, applicable collective bargaining agreements, and relevant laws.

Benefits Overview:

Our health and welfare benefits are designed to support you and your priorities. Offerings include:

• Health, dental, and vision insurance
• Paid time off and holidays
• Retirement benefits (including 401(k) matching)
• Educational reimbursement
• Parental leave
• Employee stock purchase plan
• Tax-saving options
• Disability and life insurance
• Pet insurance
  
  

Note: Benefits may vary based on employment type, location, and applicable agreements. Positions governed by a Collective Bargaining Agreement (CBA), the McNamara-O'Hara Service Contract Act (SCA), or other employment contracts may include different provisions/benefits.

Original Posting:

02/24/2026 - Until Filled

Amentum anticipates this job requisition will remain open for at least three days, with a closing date no earlier than three days after the original posting. This timeline may change based on business needs.

Amentum is proud to be an Equal Opportunity Employer. Our hiring practices provide equal opportunity for employment without regard to race, sex, sexual orientation, pregnancy (including pregnancy, childbirth, breastfeeding, or medical conditions related to pregnancy, childbirth, or breastfeeding), age, ancestry, United States military or veteran status, color, religion, creed, marital or domestic partner status, medical condition, genetic information, national origin, citizenship status, low-income status, or mental or physical disability so long as the essential functions of the job can be performed with or without reasonable accommodation, or any other protected category under federal, state, or local law. Learn more about your rights under Federal laws and supplemental language at Labor Laws Posters.