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60 Merck Principal Scientist Jobs Hiring Near You

Merck & Co.

Associate Principal Scientist, Biologics, Sterile Drug Product Commercialization As part of Our ... Merck & Co., Inc., Rahway, NJ, USA, also known as Merck Sharp & Dohme LLC, Rahway, NJ, USA, does ...

Merck & Co.

Principal Scientist, Biostatistics

Rahway, NJ · On-site

$190.80 - $300.30/hr

This position is for a principal scientist in biostatistics. The candidate should have a solid knowledge of statistical methodology, experimental design, computing software and data management; a ...

Merck & Co.

Associate Principal Scientist

Rahway, NJ · On-site

Associate Principal Scientist, Process ChemistryThe Process Chemistry organization, located at our ... Merck & Co., Inc., Rahway, NJ, USA, also known as Merck Sharp & Dohme LLC, Rahway, NJ, USA, does ...

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Merck & Co.

Principal Scientist, Biologics, Sterile Drug Product Commercialization As part of Our Company ... Merck & Co., Inc., Rahway, NJ, USA, also known as Merck Sharp & Dohme LLC, Rahway, NJ, USA, does ...

Merck & Co.

... Principal Scientist (director-level equivalent) to contribute to our company drug discovery and ... Merck & Co., Inc., Rahway, NJ, USA, also known as Merck Sharp & Dohme LLC, Rahway, NJ, USA, does ...

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Merck Jobs Information

Do workers at Merck get paid breaks?

Sometimes. Only some people get paid breaks.
46% of people say they don’t get paid breaks.
Based on data from 24 people who took the Breakroom Quiz between December 2024 and February 2026.

Does Merck pay people when they’re sick?

Yes. Most people get paid when they’re sick.
83% of people say they would get paid if they were sick but scheduled to work.
Based on data from 46 people who took the Breakroom Quiz between December 2024 and July 2026.

At Merck, are sick days and vacation days separate paid time off?

Sick days and vacation days are separate paid time off.
80% of people say they don’t have to use vacation days when they’re out sick.
Based on data from 25 people who took the Breakroom Quiz between May 2025 and July 2026.

Is the health insurance from Merck affordable enough for their workers?

Most people say the health insurance costs are okay.
100% of people say the health insurance costs are okay
Based on data from 33 people who took the Breakroom Quiz between March 2025 and July 2026.

Do people get paid time off at Merck?

Most people get paid time off work.
93% of people say they get paid time off.
Based on data from 28 people who took the Breakroom Quiz between May 2025 and July 2026.

How far ahead of time do people find out their work schedule?

Most people find out their schedule less than four weeks ahead of time.
  • 38% of people with changing schedules find out their shifts one week or less ahead of time.
  • 25% of people with changing schedules find out their shifts two weeks ahead of time.
  • 13% of people with changing schedules find out their shifts three weeks ahead of time.
  • 25% of people with changing schedules find out their shifts four weeks or more ahead of time.

Based on data from 8 people who took the Breakroom Quiz between February 2025 and February 2026.

Do workers at Merck worry about hours?

Most people don’t worry about getting enough hours.
92% of people report they don’t worry about getting enough hours.
Based on data from 26 people who took the Breakroom Quiz between December 2024 and July 2026.

Do Merck workers get to choose the shifts they work?

Some people don’t get to choose which shifts they work.
48% report that they don’t have enough control over which shifts they work.
Based on data from 23 people who took the Breakroom Quiz between December 2024 and February 2026.

How easy is it for Merck workers to change shifts?

Most people find it hard to change shifts.
73% of people report that it’s hard to change shifts if they need to.
Based on data from 11 people who took the Breakroom Quiz between December 2024 and July 2026.

How easy is it to get time off at Merck?

Most people find it easy to get time off.
86% of people report it’s easy to get time off.
Based on data from 44 people who took the Breakroom Quiz between December 2024 and July 2026.

Do Merck managers change schedules at the last minute?

Most managers don’t change people’s schedules at the last minute.
93% of people say their manager doesn’t change their shift schedule at the last minute.
Based on data from 28 people who took the Breakroom Quiz between December 2024 and July 2026.

Do jobs at Merck spill into time workers aren’t paid for?

Rarely. The job doesn't usually spill into unpaid time.
17% of people report that their job takes up time that they don’t get paid for.
Based on data from 30 people who took the Breakroom Quiz between December 2024 and July 2026.

How easy is it to take sick days at Merck?

Most people find it easy to take sick days.
85% of people report that it’s easy to take time off if they are sick.
Based on data from 47 people who took the Breakroom Quiz between December 2024 and July 2026.

Is working at Merck good if you’re a parent or caregiver?

Most parents and caregivers say this is a good place to work.
86% of people who care for a child or other relative report this is a good place to work.
Based on data from 22 people who took the Breakroom Quiz between January 2025 and July 2026.

Do people at Merck feel treated with respect by their managers?

Most people feel treated with respect by their managers.
80% of people say they’re treated with respect by their managers.
Based on data from 41 people who took the Breakroom Quiz between December 2024 and July 2026.

Do people at Merck get to take their breaks without interruption?

Most people get breaks without interruption.
79% of people report that they get to take their breaks without interruption.
Based on data from 39 people who took the Breakroom Quiz between December 2024 and July 2026.

Is it stressful to work at Merck?

Most people feel stressed here.
75% of people say they often feel stressed at work.
Based on data from 51 people who took the Breakroom Quiz between December 2024 and July 2026.

Do people at Merck enjoy their jobs?

Most people enjoy their job.
76% of people report they enjoy their job.
Based on data from 37 people who took the Breakroom Quiz between December 2024 and July 2026.

Do people at Merck recommend working with their team?

Only some people recommend working with their team.
43% of people report that they wouldn’t recommend working with their immediate team to a friend.
Based on data from 51 people who took the Breakroom Quiz between December 2024 and July 2026.

Do people get enough training when they start at Merck?

Most people got enough training when they started.
77% of people report they got enough training when they started working here.
Based on data from 47 people who took the Breakroom Quiz between December 2024 and July 2026.

Do people get support to advance at Merck?

Most people are given support to advance their career here.
In the last year, 67% of people report being given support to advance their career here.
Based on data from 46 people who took the Breakroom Quiz between December 2024 and July 2026.

Do people think Merck’s headquarters understands what’s happening where they work?

Most people think headquarters doesn’t understand what’s happening where they work.
82% of people think that this employer’s headquarters or owners don’t have a good understanding of what’s really happening where they work.
Based on data from 45 people who took the Breakroom Quiz between December 2024 and July 2026.

Do workers feel well informed about how Merck is doing?

Only some people feel well informed about how the company is doing.
36% of people feel that they aren’t kept well informed about how the company is doing as a whole.
Based on data from 44 people who took the Breakroom Quiz between December 2024 and July 2026.

What other companies are hiring for Principal Scientist jobs?

What are the most popular jobs at Merck?

What are the most popular categories at Merck?

Infographic showing various Principal Scientist job openings at Merck in the United States as of August 2026, with employment types broken down into 99% Full Time, and 1% Part Time. Highlights an 87% Physical, 2% Hybrid, and 11% Remote job distribution.

Lead Principal Scientist, Biologics Analytics & Strategy

Merck & Co.

Rahway, NJ • On-site

$156.90 - $247/hr

Other

Re-posted 17 days ago

Merck rating

8.0

Company rating: 8.0 out of 10

Based on 51 frontline employees who took The Breakroom Quiz

43rd of 86 rated pharmaceutical

Job description

Merck & Co. is actively seeking a Principal Scientist for its Rahway, New Jersey research facility. This senior role involves defining analytical strategy and leading a team of scientists to tackle complex analytical problems in biologics.

Candidates should have a Ph.D. in analytical chemistry or similar with significant industry experience, strong team leadership skills, and proven abilities in biologics analysis and assay development.

This position offers a competitive salary range of $156,900.00 - $247,000.00, along with comprehensive benefits and the possibility for visa sponsorship.

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