Senior Manager, Drug Substance

Rhythm Pharmaceuticals, Inc. Posted Oct 22, 2026
Salary · per posting
$135k – $215k/yr
Workplace
On-site / per employer
Posted
Oct 22, 2026

About this role

Rhythm is a global, commercial-stage biopharmaceutical company committed to transforming the lives of patients and their families living with rare neuroendocrine diseases. We develop medicines for previously untreatable or undertreated diseases and provide meaningful support for healthcare providers and patients and their families. We recognize the courage it takes for patients and their caregivers to begin their journey of advocacy to find the answers they need.

Their courage inspires us to challenge convention, ask bold questions and seek answers for them. Every day, we strive for excellence through our willingness to adapt, learn, and our tenacity to overcome barriers, together.We offer a fast-paced and collaborative work environment, with a competitive compensation and benefits package, including equity grants and the opportunity to participate in our employee stock purchase plan. We foster an environment that is supportive and fun – enabling us to bring our best each day toward achieving our goals.

Working together, we’ll succeed.We are centrally located in Boston’s Back Bay neighborhood, easily accessible by several modes of public transportation and walking distance to much of what the city has to offer.We continue to grow, so if you don’t see anything here that currently fits your qualifications, please visit again to see what roles we have open.Thank you for considering Rhythm.By submitting your application for employment, you confirm that you agree to the storing and processing of your personal data by Rhythm Pharmaceuticals as described in our Privacy Statement. EU residents, please see our privacy policy on data use.Note to agencies: Rhythm values our partnerships with recruiting firms and will only work with those who have an established relationship and signed contract. Authorization to work on a role and/or submit resumes will come from HR only, so please do not forward any agency resumes.

The company will not be responsible for any fees related to resumes that are unsolicited.Senior Manager, Drug SubstanceBoston, MAFull TimeTech OpsExperiencedShareCompany OverviewRhythm is a global, commercial-stage biopharmaceutical company committed to transforming the lives of patients living with rare neuroendocrine diseases. We develop medicines for previously untreatable or undertreated diseases. We recognize the courage it takes for patients and their caregivers to begin their journey of advocacy to find the answers they need.

Their courage inspires us to challenge convention, ask bold questions and seek answers for them. Every day, we strive for excellence through our willingness to adapt, learn, and our tenacity to overcome barriers, together.Opportunity OverviewAs a Senior Manager, Drug Substance you willprovide oversight of project teams at CDMO’s working on development and production of intermediates and API’s for all stages of clinical development. The successful candidate will provide oversight for chemical process development and manufacturing.

If required, he or she will oversee the transfer of processes or changes required within/between Rhythm contract manufacturing partners. He or she will ensure that processes, materials and equipment for manufacture of Drug Substance and intermediates are suitable for the stage of clinical development and adhere to regulatory requirements. He or she will ensure that contract manufacturers comply with appropriate manufacturing procedures including any investigations, deviations and changes required via Change Controls.Responsibilities and DutiesOversee CDMO team(s) in the scale-up of advanced chemical intermediates and APIs for GLP studies as well as early and late-stage GMP clinical studies.Collaborate with CDMOs to address process chemistry challenges and develop manufacturing processes that are scalable, safe and cost-effective.Perform route scouting and development activities for small molecule Drug Substances.Assist with technology transfers of Drug Substances from one CDMO supplier to new suppliers.Review and approve manufacturing batch records.Assist with closing out supplier deviations and investigations.Write and review Drug Substance related technical documents.Qualifications and SkillsB.S./ M.S in Chemistry with at least 6+ years’ experience working with small molecule Drug Substances.Extensive experience in process chemistry development, scale-up, tech transfer and process characterizations.Thorough understanding of cGMP requirements for pharmaceutical products.Demonstrated experience with managing project teams, CDMOs and other vendors.Ability to work independently in a fast-paced dynamic environment.Strong analytical, organizational and decision-making skills.Excellent communication skills, both written and verbal.Deep understanding of small molecule drug development; understanding of how CMC integrates and partners with associated functional areas such as Quality, Preclinical, Clinical, Regulatory, and Intellectual Property Protection.Demonstrated ability to make sound, risk-based scientific and business decisions in ambiguous, fast-paced development environments.Ability to conduct, manage and communicate risk assessments.This role is based out of our corporate office in Boston, Massachusetts.

Rhythm operates in a hybrid-work model. Candidates applying must be willing and able to be in the Boston office in coordination with their department and business needs.This role may involve some travel.The expected salary range for this position is $135,000 - $215,000. Actual pay will be determined based on experience, level, qualifications, geographic location, and other job-related factors permitted by law.

A discretionary annual bonus may be available based on individual and company performance. This role may be eligible for benefits and other compensation such as restricted stock units.More about RhythmWe are a dynamic and growing global team spanning more than a dozen countries. At Rhythm we are dedicated to transforming the lives of patients living with rare neuroendocrine diseases by rapidly advancing care and precision medicines that address the root cause.

Our team is passionate about expanding access to reach more patients and developing novel therapies for other rare neuroendocrine diseases, including congenital hyperinsulinism.At Rhythm our core values are:We are committed to advancing scientific understanding to improve patients’ livesWe are inspired to tackle tough challenges and have the courage to ask bold questionsWe are eager to learn and adaptWe believe collaboration and ownership are foundational for our successWe value the unique contribution each individual brings to furthering our missionInherent in our core values is the commitment to act ethically and with integrity in all we do.Rhythm is an equal employment opportunity employer and does not discriminate against any applicant because of race, creed, color, age, national origin, ancestry, religion, gender, sexual orientation, disability, genetic information, veteran status, military status, application for military service, or any other class protected by state or federal law.Headquartered in Boston, Rhythm is proud to have been named one of theTop Places to Workin Massachusetts.ShareApplyApply for this positionRequiredFirst NameLast NameEmail AddressPhoneAddressResumeWe've received your resume. Clickhereto update it.Attach resumeorPaste resumeAttach resume as .pdf, .doc, .docx, .odt, .txt, or .rtf (limit 5MB) orPaste resumePaste your resume here orAttach resume fileAre you currently authorized to work in the U.S. on a full-time basis?-- No answer --YesNoWill you now or in the future require sponsorship for employment visa status (e.g., H-1B status)?-- No answer --YesNoDo you have experience in biotech/ pharma?-- No answer --YesNoDo you live within a commutable distance to Boston, MA?-- No answer --YesNoThe following questions are entirely optional.To comply with government Equal Employment Opportunity and/or Affirmative Action reporting regulations, we are requesting (but NOT requiring) that you enter this personal data. This information will not be used in connection with any employment decisions, and will be used solely as permitted by state and federal law.

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Originally posted by Rhythm Pharmaceuticals, Inc.. View original posting