Regeneron Pharmaceuticals, Inc (USA) Posted July 30, 2026

Process Development Engineer I - Synthetic and Bioconjugation Scale-Up Technologies (SBST)

Tarrytown, United States Full time
Manufacturing & CMC

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

At Regeneron, we use science and innovation to develop life-changing medicines for people with serious diseases. We are seeking a Process Development Engineer I to join our Synthetic and Bioconjugation Scale-up Technologies (SBST) group, part of our Preclinical Manufacturing & Process Development (PMPD) department. In this exciting new role, you will develop manufacturing processes for the production of synthetic small molecules used in Regeneron's diverse range of therapeutic modalities, working in close collaboration with cross-functional teams to perform chemical process development and optimization using Quality by Design (QbD) principles for GMP production.

This position offers the opportunity to contribute to process scale-up and technology transfer of manufacturing workflows to Contract Development and Manufacturing Organizations (CDMOs), helping ensure timely and reliable entrance to the clinic and eventual commercialization.

When & where:

Shift Requirements: Full-time, standard business hours, with on-site presence during scale-up/GMP manufacturing activities as needed

Location: On-site laboratory setting

Flexibility & travel: Minimal to no travel; on-site presence required to support lab operations, with occasional travel to CDMO sites for technology transfer

What you'll do:

Work at the bench to design and develop scalable, robust, and controlled GMP-ready processes for synthetic small molecules

Collaborate with analytical groups within or outside the organization to establish supportive analytical characterization of synthetic intermediates and final products

Discuss plans and data in multi-functional teams to evaluate processes and determine developmental goals, ensuring integrated program success

Use statistical design of experiments (DOE) to optimize synthetic chemical processes, including reaction parameters, purification operations, and analytical characterization

Partner with the External Manufacturing group and other key partners at Regeneron's IOPS organization to provide technical assessment of CDMOs intended for GMP production and successfully transfer processes with immediate, first-time success

Research, identify, and develop new technologies to improve processes, generate predictive process models, and pioneer novel at-line/in-line process analytical technologies (PAT)

Author robust technology transfer documentation and support production with onsite presence during scale-up/GMP manufacturing activities

Analyze and present data in a clear and cohesive manner to a broad audience, facilitating data-driven decision-making

Author, review, or provide domain expertise for publications, reports, tech transfer documents, regulatory support documents, and patents

Coach and mentor junior team members of the organization as needed

The environment and physical rhythms of this role:

This is a hands-on, on-site laboratory role requiring bench work to design and develop synthetic small-molecule processes, along with proactive compliance with lab safety and environmental safety expectations set by Regeneron and regulatory bodies such as the FDA and DoT.

Flexibility to multitask and work both independently and within cross-functional teams, along with occasional onsite presence during scale-up/GMP manufacturing activities, is required.

Let's find out if we're a fit:

Must-haves:

Bachelor's degree with 4 years of relevant experience, or Master's degree with 0-3 years of relevant experience, in active pharmaceutical ingredient (API) process development

Strong initiative and drive to complete challenging tasks and learn new technologies

Strong fundamental understanding of process chemistry and technology transfer principles

Excellent interpersonal, verbal, and written communication skills, with the ability to think critically and demonstrate problem-solving skills

Well-versed with purification techniques such as crystallization, extraction, and chromatography

Preferred / nice-to-haves:

Experience with small molecules in the bioconjugates space

Hands-on experience with organic molecule synthesis and characterization tools such as mass spectrometry, NMR, IR spectroscopy, and HPLC

Proven experience scaling up synthetic small-molecule reactions and technology transfer to a GMP manufacturing facility

Experience handling highly potent compounds using appropriate containment and best-practice procedures

Well-versed with ICH/regulatory guidelines and their impact on process development of synthetic molecules and bioconjugates

Experience working with cross-functional CMC teams, and experience authoring publications, reports, tech transfer documents, regulatory support documents, and patents

Thrive today. Grow tomorrow.

Student Loan Paydown program & Tuition Reimbursement

Family Care Benefits

Relocation Assistance

Inclusion, Culture and Well-Being programs (including physical & mental health)

#pmpd

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
Not listed
Function
Manufacturing & CMC
Therapeutic area
Not listed
Location
Tarrytown, 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 1527 comparable Manufacturing & CMC roles across 125 biopharma companies.

1527Comparable roles tracked
1434Currently active
125Companies hiring similar roles
44Countries represented

Salary context

455 of 1527 peers report a salary range (USD, annualized)

Peers share this role's job function. This posting doesn't list a seniority level, so peers aren't narrowed by seniority either -- the range below may span more levels than usual.

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 – $540,400 (median $140,000)

Where these roles are based

Top locations among the 1527 comparable roles

United States781
India104
Germany74
Singapore67
France64
Ireland54

+ 38 more countries

Seniority mix

705 of 1527 peers have a known seniority level

Senior251
Manager165
Principal79
Associate68
Director64
Associate Director44
Senior Director21
Intern/Fellow/Postdoc8
Executive/VP5

Therapeutic area mix

7 of 1527 peers have a known therapeutic area; the rest are genuinely unlabeled, not hidden

Vaccines & Infectious Disease6
Oncology1

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.

40%similar
Alexion New Haven, Connecticut, United States of America
Same function Same country
40%similar
AstraZeneca Cambridge, Massachusetts, United States of America Director
Same function Same country
40%similar
Alexion New Haven, Connecticut, United States of America
Same function Same country
40%similar
40%similar
Lilly Boston, Massachusetts, United States of America Associate
Same function Same country
40%similar
Lilly Indianapolis, Indiana, United States of America Senior Director
Same function 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.

40%
Scientist II, LC Development, Biologics Analytical Development
Alexion · New Haven, Connecticut, United States of America · Seniority not listed
Function Therapeutic area Seniority Country
40%
Director, Global Regulatory Affairs – Chemistry, Manufacturing and Controls (CMC), Platform Innovation – Synthetic Peptides and Oligonucleotides
Lilly · Indianapolis, Indiana, United States of America · Director
Function Therapeutic area Seniority Country
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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.