
Sr Scientist, ADC Mass Spec
Spring House, PAContract$60–75/hrSeen todaySeen in employer's feed today
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At a glance
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Job overview
The Sr Scientist, ADC Mass Spec will support characterization of antibody-drug and degrader-antibody conjugates through protein sample preparation and LC/MS workflows. The role includes operating automated liquid handlers, analyzing intact protein mass, maintaining instruments and lab supplies, and supporting assay development and validation. The scientist will also assist with scientific publications and patent filings. The engagement is in Spring House, Pennsylvania, with a stated one-year duration likely to extend.
Skills & qualifications
Skills
Qualifications
Benefits
Full job description
Sr Scientist, ADC Mass Spec
Kelly Science and Clinical has an opening for an Sr Scientist, ADC Mass Spec for an engagement at one of our Global pharmaceutical clients in Spring House, PA. The role is eligible for medical benefits, paid time off including vacation (PTO), and holidays, and 401K. If you’re passionate about bringing the latest scientific discoveries to life and are ready to take the next step in your career, trust The Experts at Hiring Experts.
Schedule: Mon-Fri, 8AM-5PM
Duration: 1yr, likely to extend
Compensation: $60-75 an hour
RESPONSIBILITIES
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Protein sample preparation including immunocapture and standard curve generation to support LC/MS workflows for antibody-drug conjugates (ADC) and degrader-antibody conjugates (DAC) characterization.
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Operate automated liquid handler systems, e.g., Agilent AssayMAP Bravo
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Intact protein mass analysis using LC/MS platforms.
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Data analysis, documentation, and reporting – ELNs, etc.
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Lab instrument maintenance – General ESI source cleaning and routine calibration
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Prepare HPLC solvents and replenish as needed
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Prepare general buffers and reagents for enzymatic digestions and assays etc
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MS Lab-specific supply maintenance – inventory and ordering
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Chemical inventory for EHS
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Support assay development and validation as needed.
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Assist in drafting and executing peer-reviewed posters, manuscripts, tech reports, and patent filings.
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Attend in-house seminars to support team goals.
QUALFICATIONS
Required:
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MS with 3-5 years experience, or a BS with 10+ years in an analytical chemistry discipline.
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Previous experience handling and working with proteins using general protein biochemistry techniques including but not limited to aliquoting and pipetting is required.
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Experience with mass spectrometry is required.
Preferred
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Pharmaceutical experience working with antibodies is preferred.
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Experience with automated liquid handlers is preferred.
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Pharmaceutical experience working with antibodies is preferred.
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Candidate must be highly organized, independent, and very detail oriented.
What happens next
Once you apply, you’ll proceed to the next steps if your skills and experience look like a good fit. But don’t worry—even if this position doesn’t work out, you’re still in our network. That means all of our recruiters will have access to your profile, expanding your opportunities even more.
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Email resumes to [email protected]
As part of our promise to talent, Kelly supports those who work with us through a variety of benefits, perks, and work-related resources. Please note: The following benefits reflect Kelly's general offerings. Eligibility may vary by assignment, location, and job type. Kelly offers eligible employees voluntary benefit plans including medical, dental, vision, telemedicine, term life, whole life, accident insurance, critical illness, a legal plan, and short-term disability. As a Kelly employee, you will have access to a retirement savings plan, service bonus and holiday pay plans (earn up to eight paid holidays per benefit year), and a transit spending account. In addition, employees are entitled to earn paid sick leave under the applicable state or local plan. Click here (https://www.mykelly.com/help-support-working-with-kelly-us/#Benefits) for more information on benefits and perks that may be available to you as a member of the Kelly Talent Community.
Why Kelly ® Science & Clinical?
Kelly Science & Clinical is your connection to premier scientific and clinical companies looking to hire industry experts just like you. Our team creates expert talent solutions to solve the world’s most critical challenges. Every day, we match science professionals with dream jobs that fit their skills, interests, and career goals—it’s the way we think job searching should be. Nearly 100 percent of our science recruiters have a professional background and education in science, so we know a thing or two about the science market and how to get your expertise noticed.
About Kelly
Work changes everything. And at Kelly, we’re obsessed with where it can take you. To us, it’s about more than simply accepting your next job opportunity. It’s the fuel that powers every next step of your life. It’s the ripple effect that changes and improves everything for your family, your community, and the world. Which is why, here at Kelly, we are dedicated to providing you with limitless opportunities to enrich your life—just ask the 300,000 people we employ each year.
Kelly is committed to providing equal employment opportunities to all qualified employees and applicants regardless of race, color, sex, sexual orientation, gender identity, religion, national origin, disability, veteran status, age, marital status, pregnancy, genetic information, or any other legally protected status, and we take affirmative action to recruit, employ, and advance qualified individuals with disabilities and protected veterans in the workforce. Requests for accommodation related to our application process can be directed to the Kelly Human Resource Knowledge Center. Kelly complies with the requirements of California’s state and local Fair Chance laws. A conviction does not automatically bar individuals from employment. Kelly participates in E-Verify and will provide the federal government with your Form I-9 information to confirm that you are authorized to work in the U.S.
Kelly may use AI-powered tools during the recruitment and hiring process. For full details, including how Kelly uses AI, your rights, and how to request a reasonable accommodation, visit the Recruitment Artificial Intelligence Notice (https://www.kellyservices.com/hubfs/myKelly/Resources/Employment\_Policies/Recruitment-Artificial-Intelligence-Notice.pdf?hsLang=en) .
Kelly Services is proud to be an Equal Employment Opportunity and Affirmative Action employer. We welcome, value, and embrace diversity at all levels and are committed to building a team that is inclusive of a variety of backgrounds, communities, perspectives, and abilities. At Kelly, we believe that the more inclusive we are, the better services we can provide. Requests for accommodation related to our application process can be directed to Kelly’s Human Resource Knowledge Center. Kelly complies with the requirements of California’s state and local Fair Chance laws. A conviction does not automatically bar individuals from employment.
How this job compares
Set against the 2,108 open Scientist jobs on Olive Jobs, counted November 7, 2026.
- Pay
- This posting$60–75/hr
- US median$32–38/hr105 hourly ranges
This range's midpoint, $67.50/hr, is 90% above the US median midpoint ($36/hr) — in the top quarter of Scientist hourly ranges across the US.
- Openings
- Olive Jobs lists 113 open Scientist jobs in Pennsylvania and 2,108 across the US. Under 1% of them nationwide are listed as remote or flexible.
- Hiring the most in Pennsylvania
- Merck19 open
- J&J Family of Companies8 open
- Parexel8 open
- Experience
- This posting asks for at least 3 years of experience; Scientist postings that state a minimum ask for 3 years at the median (1,541 postings).
- Education
- 1,029 of the 2,108 open Scientist jobs (49%) ask for a bachelor's degree or higher.
Counted across the open, public US postings on Olive Jobs on November 7, 2026. Pay medians are the middle values of the low ends and of the high ends of postings that list both ends of a range in the same cadence (a yearly salary or an hourly rate); a range's midpoint is halfway between its ends. Pay and experience figures resting on fewer than 20 postings are left out.
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