Job was saved successfully.
Job was removed from Saved Jobs.

Job Details

Merck & Co, Inc

Sr. Research Associate, Protein Expression & Purification ( MERCUSR128388ENUS)

Science and Research

Biological Research



South San Francisco, California, United States

Job Description

Our Company's Protein Design team is focused developing novel protein therapeutics that will have a direct impact on patient lives. We are exploring unique modalities and creative ways to leverage proteins against disease. As a group, we bring a diverse set of skills, perspectives, and backgrounds to tackle challenging scientific problems and pride ourselves on exploring innovative approaches to protein therapeutics. We are seeking an experienced protein chemist with strong expression and purification skills to join our team

Primary Laboratory Responsibilities

  • Expression and purification of antibodies and proteins

  • Stable cell line generation

  • Standard molecular biology and cloning

  • Conjugation of small molecules and/or peptides

  • Biophysical protein characterization

Minimum Education Requirement

  • Bachelor’s degree with 7 or more years or Master’s degree with 4 or more years of professional experience.

Desired Experience and Skills

  • Mastery in standard molecular biology and other laboratory techniques related to protein production, characterization, and evaluation

  • Exceptional organizational skills and ability to prioritize

  • Team player with a willingness to work in different disease areas and/or explorational studies

  • Strong verbal and written communication skills and desire to “bring ideas to the table”

  • Background in protein expression, purification and protein chemistry

  • Self-motivated and forward thinking with an interest in being involved in multiple stages of project progression

  • Experience with bioconjugation of small molecules or peptides considered a plus

We are a research-driven biopharmaceutical company. Our mission is built on the simple premise that if we “follow the science” that great medicines can make a significant impact to our world. We believe that a research-driven enterprise dedicated to world-class science can succeed by inventing medicine and vaccine innovations that make a difference for patients across the globe.

Who we are …

We are known as Merck & Co., Inc., Kenilworth, New Jersey, USA in the United States and Canada and MSD everywhere else. For more than a century, we have been inventing for life, bringing forward medicines and vaccines for many of the world's most challenging diseases. Today, our company continues to be at the forefront of research to deliver innovative health solutions and advance the prevention and treatment of diseases that threaten people and animals around the world.

What we look for …

In a world of rapid innovation, we seek brave Inventors who want to make an Impact in all aspects of our business, enabling breakthroughs that will affect generations to come. We encourage you to bring your disruptive thinking, collaborative spirit and diverse perspective to our organization.


In accordance with Managers' Policy - Job Posting and Employee Placement, all employees subject to this policy are required to have a minimum of twelve (12) months of service in current position prior to applying for open positions.

If you have been offered a separation benefits package, but have not yet reached your separation date and are offered a position within the salary and geographical parameters as set forth in the Summary Plan Description (SPD) of your separation package, then you are no longer eligible for your separation benefits package. To discuss in more detail, please contact your HRBP or Talent Acquisition Advisor.

Current Employees apply HERE

Current Contingent Workers apply HERE

US and Puerto Rico Residents Only:

Our company is committed to inclusion, ensuring that candidates can engage in a hiring process that exhibits their true capabilities. Please click here if you need an accommodation during the application or hiring process.

For more information about personal rights under Equal Employment Opportunity, visit:

EEOC Poster

EEOC GINA Supplement​

OFCCP EEO Supplement

Pay Transparency Nondiscrimination

We are proud to be a company that embraces the value of bringing diverse, talented, and committed people together. The fastest way to breakthrough innovation is when diverse ideas come together in an inclusive environment. We encourage our colleagues to respectfully challenge one another’s thinking and approach problems collectively. We are an equal opportunity employer, committed to fostering an inclusive and diverse workplace.

Search Firm Representatives Please Read Carefully
Merck & Co., Inc., Kenilworth, NJ, USA, also known as Merck Sharp & Dohme Corp., Kenilworth, NJ, USA, does not accept unsolicited assistance from search firms for employment opportunities. All CVs / resumes submitted by search firms to any employee at our company without a valid written search agreement in place for this position will be deemed the sole property of our company. No fee will be paid in the event a candidate is hired by our company as a result of an agency referral where no pre-existing agreement is in place. Where agency agreements are in place, introductions are position specific. Please, no phone calls or emails.

Employee Status:




VISA Sponsorship:


Travel Requirements:

No Travel Required

Flexible Work Arrangements:


Valid Driving License:

Hazardous Material(s):

Number of Openings:


Requisition ID:R128388