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Associate Manufacturing Scientist I (2nd shift)

$60k – $70k/yrPosted Aug 4, 2026

Arrowhead Pharmaceuticals, Inc. (Nasdaq ARWR) is a commercial stage biopharmaceutical company that develops medicines that treat intractable diseases by silencing the genes that cause them. Using a broad portfolio of RNA chemistries and efficient modes of delivery, Arrowhead therapies trigger the RNA interference mechanism to induce rapid, deep, and durable knockdown of target genes. RNA interference, or RNAi, is a mechanism present in living cells that inhibits the expression of a specific gene, thereby affecting the production of a specific protein. Arrowhead’s RNAi-based therapeutics leverage this natural pathway of gene silencing.

Arrowhead is focused on developing innovative drugs for diseases with a genetic basis, typically characterized by the overproduction of one or more proteins that are involved with disease. The depth and versatility of our RNAi technologies enables us to potentially address conditions in virtually any therapeutic area and pursue disease targets that are not otherwise addressable by small molecules and biologics. Arrowhead is leading the field in bringing the promise of RNAi to address diseases outside of the liver, and our clinical pipeline includes disease targets in the liver and lung with a promising pipeline of preclinical candidates.

Arrowhead’s corporate headquarters is in Pasadena, CA with research and development teams in Madison, WI & San Diego, CA, and a state of the art manufacturing facility in Verona, WI. Our employees are nimble, science-driven innovators who are collaborating to bring new therapies to patients in need.

The Position

The Associate Manufacturing Scientist I (second shift) role will involve assisting in the synthesis and subsequent purification steps of large scale oligonucleotides. The operator must comply with GLP/GMP protocols and be able to follow all association SOPs and work instructions when performing and documenting operations.

2nd shift work hours are 1pm – 11:30 pm Monday - Thursday and includes a 10% shift differential.

Responsibilities

Follow batch records, SOPs, and work instructions to detail

Document all operations in batch records and logbooks

Comply with GMP protocols

Operate large scale oligonucleotide manufacturing equipment (i.e. oligonucleotide synthesizer, purification skid, tangential flow filtration system, lyophilizer, ChemGlass reactors, pH/conductivity meters, peristaltic pumps, etc.)

Assist other chemists within the Manufacturing group during synthesis and purification of oligonucleotides including

Reagent solution preparation

Mobile phase preparation

Column Packing

Fraction collection

Perform oligonucleotide/intermediate analysis via LCMS

Communicate with cross-functional groups such as Process Development, Analytical Development, Quality Control, Quality Assurance, etc.

Maintain a clean work space

Maintain safety by wearing required personal protective equipment

Track and update raw material usage in D365 ERP software

Act as production campaign lead

Assist with new personnel training

Requirements

Bachelor's degree in Chemistry, Biochemistry, Biology, Chemical Engineering, or another scientific discipline or equivalent relevant manufacturing experience.

0–2 years of laboratory or manufacturing experience in biotechnology, pharmaceutical, chemical, or related industries.

Ability to follow detailed written procedures and maintain accurate documentation.

Strong attention to detail and commitment to quality.

Ability to work independently while collaborating effectively within a team.

Strong verbal and written communication skills.

Demonstrated ability to prioritize work in a fast-paced manufacturing environment.

Preferred

Experience working in a GMP-regulated manufacturing or laboratory environment.

Hands-on experience with chromatography, filtration, purification, or analytical instrumentation such as LC-MS.

Familiarity with manufacturing documentation, batch records, or ERP systems.

Wisconsin pay range

$60,000—$70,000 USD

Arrowhead provides competitive salaries and an excellent benefit package.

Candidates must have current, valid authorization to work in the country where this role is located.

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Originally posted by Arrowhead Pharmaceuticals. View original posting

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Associate Manufacturing Scientist I (2nd shift) at Arrowhead Pharmaceuticals | BioCareerAI