Sr Scientist

Adecco US, Inc.; Princeton (NJ); On-site; USD 55,000 - 63,000; Part time

Benefits offered by this job

Medical benefits

Dental insurance

Vision insurance

Life insurance

Short-term disability

401K plan

Commuter benefits

Paid leave

Job summary

Scientist – Protein Characterization & Analytical Development at Adecco US, Inc. in Princeton, NJ is seeking a skilled scientist to support physicochemical characterization and conjugation of protein reagents across platforms such as immunoassays, flow cytometry, IHC, and LC-MS.

The role emphasizes hands-on mass spectrometry and chromatography (LC-MS, SEC, RP-HPLC), method development and data interpretation, with a fully onsite schedule, Monday–Friday, 9–5, and a contract through June 30, 2027.

Qualifications

• Bachelor's degree with 3+ years of industry experience or Master's with 1+ year.
• Hands-on mass spectrometry and chromatographic techniques.
• Understand MS, SEC, and RP chromatography theoretically and practically.
• Independently execute experiments and interpret analytical results.
• Strong scientific writing and verbal communication skills.

Responsibilities

• Design, execute, and analyze LC-MS, SEC, and other methods to characterize protein reagents.
• Develop, validate, and implement qualitative and quantitative analytical methods.
• Apply LC-MS, SEC-RI, and UV-Vis spectroscopy for characterization.
• Develop and refine analytical protocols to meet project goals.
• Interpret results and communicate findings to cross-functional teams.

Skills

Mass spectrometry

LC-MS

SEC

RP-HPLC

Analytical method development

Data analysis

Troubleshooting

Education

Bachelor's degree in Chemistry or related field

Master's degree with relevant experience

Tools

LC-MS instrumentation

SEC- RI

UV-Vis spectroscopy

Job description

Scientist – Protein Characterization & Analytical Development

Location: Princeton, NJ (Fully Onsite)

Compensation: Up to $46/hour

Schedule: Monday–Friday, 9:00 AM–5:00 PM

Employment Type: Contract through June 30, 2027, with potential for extension based on individual performance and business needs.

Position Overview

We are seeking a Scientist to support the physicochemical characterization and conjugation of protein-based reagents used across multiple technology platforms, including immunoassays, flow cytometry, immunohistochemistry (IHC), and LC-MS applications.

This position will play an important role in evaluating the quality, composition, and physicochemical properties of antibody and non-antibody protein reagents. The successful candidate will design and execute analytical experiments, develop and refine characterization methods, interpret experimental results, and communicate findings to cross-functional stakeholders.

The ideal candidate brings hands-on experience with mass spectrometry and chromatography techniques, particularly LC-MS and size exclusion chromatography (SEC), along with a working understanding of protein chemistry and the ability to independently troubleshoot experiments and interpret analytical data.

Key Responsibilities

Analytical Characterization & Method Development

• Design, execute, and analyze experiments using LC-MS, size exclusion chromatography (SEC), and other analytical techniques to characterize antibody and non-antibody protein reagents.

• Perform the development, validation, and implementation of qualitative and quantitative analytical methods.

• Apply physicochemical characterization techniques, including LC-MS, SEC-RI, and UV-Vis spectroscopy.

• Develop, optimize, and refine analytical methods and characterization protocols to support project requirements.

• Evaluate protein properties and analytical results to ensure reliable characterization of research and development materials.

Data Analysis & Scientific Reporting

• Independently interpret experimental results, identify trends, and determine appropriate next steps.

• Compile analytical findings, prepare comprehensive data summaries, and present results to internal stakeholders.

• Maintain accurate laboratory notebooks, experimental records, and other required documentation.

• Communicate experimental progress, findings, and potential challenges effectively across project teams.

Laboratory Operations & Collaboration

• Troubleshoot analytical instrumentation, identify technical issues, and support instrument performance with minimal supervision.

• Collaborate with internal scientific and technical teams to understand project requirements and deliver characterized materials on schedule.

• Maintain required training and comply with established laboratory procedures and documentation standards.

• Work independently while contributing to a collaborative, cross-functional scientific environment.

Required Qualifications

• Bachelor's degree in Chemistry, Biochemistry, Molecular Biology, Biotechnology, or a related scientific discipline, with at least 3 years of relevant industry experience; OR

• Master's degree in a related scientific discipline with at least 1 year of relevant industry experience.

• Hands-on experience with mass spectrometry and chromatographic analytical techniques.

• Operational and theoretical understanding of mass spectrometry, size exclusion chromatography (SEC), and reverse-phase chromatography.

• Ability to independently execute experiments, interpret analytical results, and communicate scientific findings.

• Strong problem-solving, troubleshooting, scientific writing, and verbal communication skills.

Preferred Qualifications

• Experience characterizing antibodies or other protein-based reagents.

• Exposure to protein conjugation chemistry or protein modification techniques.

• Experience developing, optimizing, or validating analytical methods.

• Familiarity with SEC-RI, UV-Vis spectroscopy, and LC-MS applications.

• Previous experience in biotechnology, biopharmaceutical, life sciences, or analytical development laboratories.

Additional Details

• Work Location: Princeton, NJ.

• Work Arrangement: Fully onsite.

• Schedule: Monday–Friday, 9:00 AM–5:00 PM.

• Compensation: Up to $46/hour.

• Assignment Duration: Through June 30, 2027, with potential for extension based on performance and business needs.

Pay Details: $40.00 to $46.00 per hour

Benefit offerings available for our associates include medical, dental, vision, life insurance, short-term disability, additional voluntary benefits, EAP program, commuter benefits and a 401K plan. Our benefit offerings provide employees the flexibility to choose the type of coverage that meets their individual needs. In addition, our associates may be eligible for paid leave including Paid Sick Leave or any other paid leave required by Federal, State, or local law, as well as Holiday pay where applicable.

Equal Opportunity Employer/Veterans/Disabled

Military connected talent encouraged to apply

To read our Candidate Privacy Information Statement, which explains how we will use your information, please navigate to https://www.adecco.com/en-us/candidate-privacy

The Company will consider qualified applicants with arrest and conviction records in accordance with federal, state, and local laws and/or security clearance requirements, including, as applicable:

• The California Fair Chance Act

• Los Angeles City Fair Chance Ordinance

• Los Angeles County Fair Chance Ordinance for Employers

• San Francisco Fair Chance Ordinance

Massachusetts Candidates Only: It is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability.