Regeneron Pharmaceuticals, Inc (USA) Posted June 22, 2026

Sr. Associate Scientist, R&D Chemistry, Peptidomimetic Purification

Hawthorne, United States Full time
Manufacturing & CMC Senior

Regeneron Pharmaceuticals, Inc (USA) is the source of truth for this posting and owns the application process. We surface normalized context and market comparison you won't find on the original listing.

About this opportunity

Sr. Associate Scientist (Peptidomimetic Purification), R&D Chemistry

We are currently seeking a lab-centric peptide purification chemist to join the R&D (Research & Development) Chemistry group. In this position, they will play a key role in Regeneron’s peptidomimetic antibody-conjugate drug discovery capabilities to enable seamless combination with the company’s existing expertise in biologics and novel genetic medicines. The candidate will drive the purification of peptidomimetic payloads and linker payloads for antibody conjugate drug therapeutics across diverse research areas. Cultural fit with the Regeneron cross-functional teams will be a key driver for success. The R&D Chemistry team is primarily composed of synthetic organic, medicinal chemistry and bioconjugation scientists that work in a highly collaborative environment with other technology, biology and therapeutic area groups. Successful candidates will have a peptide/peptidomimetic purification background and will require a firm understanding of the latest techniques, strategies and instrumentation for HT peptide purification and isolation. We expect they will act as an inspiring and motivating colleague, effective communicator, and strong project team collaborator to help develop novel antibody-conjugated peptidomimetic therapeutics.

 

Build our future together:

Actively participate and collaborate in the day-to-day activities of the R&D Chemistry Peptidomimetic purification team.

Perform mass-triggered HPLC purification of novel peptidomimetic drug modalities, using modern purification instrumentation/detection and techniques

Troubleshoot and optimize peptide purification methods and enable high throughput purification and isolation.

Identify new strategies and technologies for peptidomimetic purification to improve on existing Regeneron techniques

Actively participate in departmental, cross-functional, leadership, and external meetings to contribute expertise and to represent the vision of the R&D Chemistry Peptidomimetic purification team.

Interact broadly and collaboratively with other Regeneron groups, forging relationships and active collaborations.

 

Discover your role:

Passion and enthusiasm about the promise of peptidomimetic conjugated, antibody-targeted therapeutics and how peptide purification can enable their generation.

You enjoy applying and combining traditional methods and novel technologies to develop solutions for purification.

You are comfortable working in a cross-functional role and excel in a diverse team where egos are checked at the door.

You want to provide meaningful contributions to the development of an organizational culture that supports growth and development of its people and capabilities to drive forward the Regeneron pipeline.

You prefer to work in an organization that is modality agnostic, letting the data determine the best course forward.

 

This role requires:

Bachelor’s degree required, Master’s degree preferred in peptide, peptidomimetic, small molecule purification

Minimum of 5 years of industry experience.

Extensive hands-on experience of the HPLC purification/detection and method troubleshooting of peptidomimetics

Hands-on experience with Waters and/or Agilent purifications systems preferred

Hands-on experience with mass-triggered collection preferred

Experience with high throughput purification

Extensive experience running modern purification/isolation equipment and instrumentation

A track record of success in the field of either peptidomimetics or small molecules purification is required.

Working collaboratively with both internal and external organizations (e.g., CROs) is essential.

Does this sound like you? Apply now to take your first step towards living the Regeneron Way! We are committed to building a workplace with an inclusive culture. Regeneron is an equal opportunity employer and all  qualified applicants will receive consideration for employment without regard to race, color, religion or belief (or lack thereof), sex, sexual orientation, gender identity or expression, gender reassignment, marital or civil partnership status, civil status, pregnancy or parental status, age, disability, nationality, citizenship status, ethnic or national origin, membership of the Traveler community, familial status, genetic information, military or veteran status, or any other characteristic protected under applicable law. Where required, we will provide reasonable accommodation to applicants with known disabilities or chronic illnesses during the recruitment process, unless such accommodation would impose undue hardship.

Where necessary, we disclose salary ranges for roles in all countries in which we operate.  The final offer will be determined within the relevant range based on the country of employment, specific role level, and your skills and experience. In some countries, collective bargaining agreements (CBAs) may apply and influence certain elements of pay or benefits.  Regeneron offers a competitive and comprehensive total rewards package which may include, depending on country and role: annual bonuses or other incentive plans, equity awards, pension or retirement benefits, 401(k) company match, health and wellness programs, fitness centers, insurance benefits (e.g. medical, dental, vision, life and disability), paid time off, and family support benefits. For additional information about Regeneron benefits in the U.S., please visit https://careers.regeneron.com/en/working-at-regeneron/total-rewards/ . For other locations, additional information will be provided during the recruitment process.  If you have any questions, please speak with your recruiter.

Please be advised that at Regeneron, we believe we do our best work when we are together. For that reason, many roles are required to be performed on‑site. Please speak with your recruiter and hiring manager for more information about on‑site expectations for your role and location.

As part of the recruitment process, certain background checks may be conducted in accordance with the laws of the country where the position is based. The purpose of such checks is to verify certain information prior to the commencement of employment such as identity, right to work and educational qualifications.

For jobs in Canada: this posting is for an existing position.

Salary Range (annually)

$80,300.00 - $131,100.00

Job details

Seniority
Senior
Function
Manufacturing & CMC
Therapeutic area
Not listed
Location
Hawthorne, United States
Employment type
Full time

How this role compares

Computed from every other active Manufacturing & CMC role in our database, not just this employer's listings.

We currently track 373 comparable Senior Manufacturing & CMC roles across 53 biopharma companies.

373Comparable roles tracked
344Currently active
53Companies hiring similar roles
20Countries represented

Salary context

174 of 373 peers report a salary range (USD, annualized)

Peers share this role's job function and a matching or adjacent seniority level -- not necessarily the same therapeutic area or country.

This roleSubject $80,300/yr – $131,100/yr
Lowest disclosed · Senior Scientist II – CMC Developmental Sciences · AbbVie $0/hr – $0/hr (≈ $0–$0/yr)
Peer group range $0 – $222,900 (median $142,388)

Where these roles are based

Top locations among the 373 comparable roles

United States267
India37
Ireland10
Singapore10
Netherlands7
Switzerland6

+ 14 more countries

Seniority mix

373 of 373 peers have a known seniority level

Senior250
Principal79
Associate Director44

Therapeutic area mix

0 of 373 peers have a known therapeutic area; the rest are genuinely unlabeled, not hidden

No peers with a known therapeutic area yet.

Similar opportunities

The closest matches from our peer group, ranked by how similar they are, not how well you'd qualify for them -- treat this as market context, not a guaranteed shortlist; a weak match is labeled as one below.

60%similar
Lilly San Diego, California, United States of America Senior
Same function Same seniority Same country
60%similar
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Same function Same seniority Same country
60%similar
Seagen Inc Washington – Bothell, United States Senior
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60%similar
Pfizer Groton, United States Senior
Same function Same seniority Same country
60%similar
AbbVie North Chicago, IL Senior
Same function Same seniority Same country
60%similar
AbbVie North Chicago, IL Senior
Same function Same seniority Same country

How we calculate "similar"

No black box, no LLM guesswork: a deterministic score built from four normalized attributes. Here's this role's own peer group at different match levels, so you can see the mechanism, not just the result.

Every comparison starts from the same 100-point budget: 25 for working in the same function, 40 for the same therapeutic area, 20 for the same or adjacent seniority, 15 for the same country. A dimension we can't confirm on both sides contributes nothing, never a guess, never a free pass.

60%
Sr. Scientist - Lab Automation Scientist
Lilly · San Diego, California, United States of America · Senior
Function Therapeutic area Seniority Country
60%
Senior Scientist, Process Development
Pfizer · Groton, United States · Senior
Function Therapeutic area Seniority Country
60%
Senior Scientist, Biologics Purification II
AbbVie · North Chicago, IL · Senior
Function Therapeutic area Seniority Country
60%
Senior Electrical Engineer, Combination Product Development
AbbVie · North Chicago, IL · Senior
Function Therapeutic area Seniority Country
Unmatched or unknown dimensions score exactly the same: 0 points, never a partial guess. A role we know almost nothing about beyond its function bottoms out at 25%; it never inflates to 100% just because there's little to compare against. Seniority uses a defined ladder (Associate → Manager → Associate Director → Senior → Principal → Director → Senior Director → Executive/VP) so "Director" and "Senior Director" count as adjacent, but "Director" and "Executive/VP" do not.