BioMarin Pharmaceutical Inc. Posted July 14, 2026

Scientist II, Oligonucleotides

San Rafael, United States Fulltime-Regular
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BioMarin Pharmaceutical Inc. 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

<p>Who We Are <br /><br />BioMarin is a leading rare disease biotechnology company focused on genetically defined conditions.<br /><br />Guided by our purpose to develop medicines that make a profound impact on people’s lives, our global teams have delivered a portfolio of therapies since our founding in 1997. Our revolutionary treatments for conditions like achondroplasia (the most common form of dwarfism), PKU (phenylketonuria), CLN2, a form of Batten disease, and a number of forms of MPS (mucopolysaccharidosis) offer new possibilities for patients and families who previously had few, if any, available options. More recently, with the close of the Amicus acquisition, our portfolio has expanded to include therapies for Fabry disease and Pompe disease, expanding our ability to reach more people living with rare genetic conditions.<br /><br />Our success comes from our unwavering commitment to excellence, our deep understanding of patient needs, our scientific expertise, and our world-class manufacturing capabilities. At the heart of BioMarin is a dedicated team of the brightest minds in the industry working together to deliver innovative therapies to patients and families around the world. <br /><br />About Worldwide Research and Development <br /><br />From research and discovery to post-market clinical development, our R&amp;D engine involves all bench and clinical research and the associated groups that support those endeavors. Our teams work on developing first-in-class and best-in-class therapeutics that provide meaningful advances to patients who live with rare diseases. <br /><br /></p><div style="border: 0.0px;font-style: inherit;font-variant: inherit;font-weight: inherit;font-stretch: inherit;font-size: 11.0pt;line-height: 15.0pt;font-family: Aptos , Aptos_EmbeddedFont , Aptos_MSFontService , Calibri , Helvetica , sans-serif;font-size-adjust: inherit;margin: 3.75pt 3.75pt 3.75pt 0.0pt;padding: 0.0px;vertical-align: baseline;color: rgb(0,0,0);text-align: left;text-indent: 0.0px;"><b>Scientist II, Bioconjugation Chemist Job Summary:</b></div><div style="border: 0.0px;font-style: inherit;font-variant: inherit;font-weight: inherit;font-stretch: inherit;font-size: 11.0pt;line-height: 15.0pt;font-family: Aptos , Aptos_EmbeddedFont , Aptos_MSFontService , Calibri , Helvetica , sans-serif;font-size-adjust: inherit;margin: 3.75pt 3.75pt 3.75pt 0.0pt;padding: 0.0px;vertical-align: baseline;color: rgb(0,0,0);text-align: left;text-indent: 0.0px;">BioMarin is seeking a dedicated and skilled Scientist II specializing in bioconjugation chemistry to contribute to our cutting-edge research and development efforts in nucleic acid-based therapeutics. The successful candidate will be responsible for designing and synthesizing bioconjugates, including antibody-drug conjugates (ADCs), antibody-oligo conjugates (AOCs), and other complex biomolecules. This role requires a strong background in organic chemistry, bioconjugation techniques, and analytical characterization methods. This role offers a unique opportunity to be part of a dynamic team at the forefront of biotechnology innovation, working on projects that have the potential to transform patient outcomes.</div><div style="border: 0.0px;font-style: inherit;font-variant: inherit;font-weight: inherit;font-stretch: inherit;font-size: 11.0pt;line-height: 15.0pt;font-family: Aptos , Aptos_EmbeddedFont , Aptos_MSFontService , Calibri , Helvetica , sans-serif;font-size-adjust: inherit;margin: 3.75pt 3.75pt 3.75pt 0.0pt;padding: 0.0px;vertical-align: baseline;color: rgb(0,0,0);text-align: left;text-indent: 0.0px;"><b>Key Responsibilities:</b></div><ul style="text-align: left;margin: 0.0pt;padding-left: 0.0pt;list-style-position: inside;list-style-type: disc;"><li style="font-family: Aptos , Aptos_EmbeddedFont , Aptos_MSFontService , Calibri , Helvetica , sans-serif;font-size: 11.0pt;color: rgb(0,0,0);text-indent: 0.0pt;line-height: 14.4px;margin: 0.0pt 0.0pt 8.0pt 26.5pt;list-style-position: inherit;list-style-type: inherit;">Engage actively in project team discussions across the organization, providing subject matter expertise to support the progression of research projects and the development of new methodologies.</li><li style="font-family: Aptos , Aptos_EmbeddedFont , Aptos_MSFontService , Calibri , Helvetica , sans-serif;font-size: 11.0pt;color: rgb(0,0,0);text-indent: 0.0pt;line-height: 14.4px;margin: 0.0pt 0.0pt 8.0pt 26.5pt;list-style-position: inherit;list-style-type: inherit;">Work synergistically with multidisciplinary teams, including bioconjugation specialists, chemists, and biologists, to drive project success and foster a collaborative research environment.</li><li style="font-family: Aptos , Aptos_EmbeddedFont , Aptos_MSFontService , Calibri , Helvetica , sans-serif;font-size: 11.0pt;color: rgb(0,0,0);text-indent: 0.0pt;line-height: 15.0pt;margin: 5.0pt 0.0pt 5.0pt 26.5pt;list-style-position: inherit;list-style-type: inherit;">Design and synthesize bioconjugates such as antibody-oligo conjugates (AOCs), peptide conjugates, and other complex biomolecules.</li><li style="font-family: Aptos , Aptos_EmbeddedFont , Aptos_MSFontService , Calibri , Helvetica , sans-serif;font-size: 11.0pt;color: rgb(0,0,0);text-indent: 0.0pt;line-height: 15.0pt;margin: 5.0pt 0.0pt 5.0pt 26.5pt;list-style-position: inherit;list-style-type: inherit;">Develop and optimize conjugation methodologies and purification processes.</li><li style="font-family: Aptos , Aptos_EmbeddedFont , Aptos_MSFontService , Calibri , Helvetica , sans-serif;font-size: 11.0pt;color: rgb(0,0,0);text-indent: 0.0pt;line-height: 15.0pt;margin: 5.0pt 0.0pt 5.0pt 26.5pt;list-style-position: inherit;list-style-type: inherit;">Characterize bioconjugates using various analytical techniques, including HPLC, LC-MS, SDS-PAGE, and spectroscopy.</li><li style="font-family: Aptos , Aptos_EmbeddedFont , Aptos_MSFontService , Calibri , Helvetica , sans-serif;font-size: 11.0pt;color: rgb(0,0,0);text-indent: 0.0pt;line-height: 15.0pt;margin: 5.0pt 0.0pt 5.0pt 26.5pt;list-style-position: inherit;list-style-type: inherit;">Collaborate with cross-functional teams, including Biology, Pharmacology, and Process Development, to support preclinical and clinical programs.</li><li style="font-family: Aptos , Aptos_EmbeddedFont , Aptos_MSFontService , Calibri , Helvetica , sans-serif;font-size: 11.0pt;color: rgb(0,0,0);text-indent: 0.0pt;line-height: 15.0pt;margin: 5.0pt 0.0pt 5.0pt 26.5pt;list-style-position: inherit;list-style-type: inherit;">Maintain accurate and detailed laboratory records and documentation.</li><li style="font-family: Aptos , Aptos_EmbeddedFont , Aptos_MSFontService , Calibri , Helvetica , sans-serif;font-size: 11.0pt;color: rgb(0,0,0);text-indent: 0.0pt;line-height: 15.0pt;margin: 5.0pt 0.0pt 5.0pt 26.5pt;list-style-position: inherit;list-style-type: inherit;">Present research findings to internal teams and at scientific meetings.</li><li style="font-family: Aptos , Aptos_EmbeddedFont , Aptos_MSFontService , Calibri , Helvetica , sans-serif;font-size: 11.0pt;color: rgb(0,0,0);text-indent: 0.0pt;line-height: 15.0pt;margin: 5.0pt 0.0pt 5.0pt 26.5pt;list-style-position: inherit;list-style-type: inherit;">Stay up-to-date with the latest advancements in bioconjugation chemistry and related fields.</li></ul><div style="border: 0.0px;font-style: inherit;font-variant: inherit;font-weight: inherit;font-stretch: inherit;font-size: 11.0pt;line-height: 15.0pt;font-family: Aptos , Aptos_EmbeddedFont , Aptos_MSFontService , Calibri , Helvetica , sans-serif;font-size-adjust: inherit;margin: 3.75pt 3.75pt 3.75pt 0.0pt;padding: 0.0px;vertical-align: baseline;color: rgb(0,0,0);text-align: left;text-indent: 0.0px;"><b>Qualifications:</b></div><ul style="text-align: left;margin: 0.0pt;padding-left: 0.0pt;list-style-position: inside;list-style-type: disc;"><li style="font-family: Aptos , Aptos_EmbeddedFont , Aptos_MSFontService , Calibri , Helvetica , sans-serif;font-size: 11.0pt;color: rgb(0,0,0);text-indent: 0.0pt;line-height: 15.0pt;margin: 5.0pt 0.0pt 5.0pt 26.5pt;list-style-position: inherit;list-style-type: inherit;">Ph.D. in Chemistry, Biochemistry, or a related field with a focus on bioconjugation techniques and organic synthesis.</li><li style="font-family: Aptos , Aptos_EmbeddedFont , Aptos_MSFontService , Calibri , Helvetica , sans-serif;font-size: 11.0pt;color: rgb(0,0,0);text-indent: 0.0pt;line-height: 15.0pt;margin: 5.0pt 0.0pt 5.0pt 26.5pt;list-style-position: inherit;list-style-type: inherit;">Minimum of 3-5 years of postdoctoral experience or industry experience in bioconjugation chemistry.</li><li style="font-family: Aptos , Aptos_EmbeddedFont , Aptos_MSFontService , Calibri , Helvetica , sans-serif;font-size: 11.0pt;color: rgb(0,0,0);text-indent: 0.0pt;line-height: 15.0pt;margin: 5.0pt 0.0pt 5.0pt 26.5pt;list-style-position: inherit;list-style-type: inherit;">Strong enthusiasm for scientific research and innovation, coupled with excellent organizational skills and the ability to manage multiple tasks and projects simultaneously.</li><li style="font-family: Aptos , Aptos_EmbeddedFont , Aptos_MSFontService , Calibri , Helvetica , sans-serif;font-size: 11.0pt;color: rgb(0,0,0);text-indent: 0.0pt;line-height: 15.0pt;margin: 5.0pt 0.0pt 5.0pt 26.5pt;list-style-position: inherit;list-style-type: inherit;">Proven track record in designing and synthesizing bioconjugates, including AOCs and peptide conjugates.</li><li style="font-family: Aptos , Aptos_EmbeddedFont , Aptos_MSFontService , Calibri , Helvetica , sans-serif;font-size: 11.0pt;color: rgb(0,0,0);text-indent: 0.0pt;line-height: 15.0pt;margin: 5.0pt 0.0pt 5.0pt 26.5pt;list-style-position: inherit;list-style-type: inherit;">Strong knowledge of analytical techniques for characterizing bioconjugates.</li><li style="font-family: Aptos , Aptos_EmbeddedFont , Aptos_MSFontService , Calibri , Helvetica , sans-serif;font-size: 11.0pt;color: rgb(0,0,0);text-indent: 0.0pt;line-height: 15.0pt;margin: 5.0pt 0.0pt 5.0pt 26.5pt;list-style-position: inherit;list-style-type: inherit;">Excellent problem-solving skills and the ability to work independently and collaboratively.</li><li style="font-family: Aptos , Aptos_EmbeddedFont , Aptos_MSFontService , Calibri , Helvetica , sans-serif;font-size: 11.0pt;color: rgb(0,0,0);text-indent: 0.0pt;line-height: 15.0pt;margin: 5.0pt 0.0pt 5.0pt 26.5pt;list-style-position: inherit;list-style-type: inherit;">Strong written and verbal communication skills.</li></ul><div style="border: 0.0px;font-style: inherit;font-variant: inherit;font-weight: inherit;font-stretch: inherit;font-size: 11.0pt;line-height: 15.0pt;font-family: Aptos , Aptos_EmbeddedFont , Aptos_MSFontService , Calibri , Helvetica , sans-serif;font-size-adjust: inherit;margin: 3.75pt 3.75pt 3.75pt 0.0pt;padding: 0.0px;vertical-align: baseline;color: rgb(0,0,0);text-align: left;text-indent: 0.0px;"><b>Why Join BioMarin?</b></div><ul style="text-align: left;margin: 0.0pt;padding-left: 0.0pt;list-style-position: inside;list-style-type: disc;"><li style="font-family: Aptos , Aptos_EmbeddedFont , Aptos_MSFontService , Calibri , Helvetica , sans-serif;font-size: 11.0pt;color: rgb(0,0,0);text-indent: 0.0pt;line-height: 15.0pt;margin: 5.0pt 0.0pt 5.0pt 26.5pt;list-style-position: inherit;list-style-type: inherit;">Opportunity to work on cutting-edge biopharmaceuticals that make a meaningful impact on patients' lives.</li><li style="font-family: Aptos , Aptos_EmbeddedFont , Aptos_MSFontService , Calibri , Helvetica , sans-serif;font-size: 11.0pt;color: rgb(0,0,0);text-indent: 0.0pt;line-height: 15.0pt;margin: 5.0pt 0.0pt 5.0pt 26.5pt;list-style-position: inherit;list-style-type: inherit;">Collaborative and innovative work environment.</li><li style="font-family: Aptos , Aptos_EmbeddedFont , Aptos_MSFontService , Calibri , Helvetica , sans-serif;font-size: 11.0pt;color: rgb(0,0,0);text-indent: 0.0pt;line-height: 15.0pt;margin: 5.0pt 0.0pt 5.0pt 26.5pt;list-style-position: inherit;list-style-type: inherit;">Comprehensive benefits package, including health insurance, 401(k) matching, and professional development opportunities.</li><li style="font-family: Aptos , Aptos_EmbeddedFont , Aptos_MSFontService , Calibri , Helvetica , sans-serif;font-size: 11.0pt;color: rgb(0,0,0);text-indent: 0.0pt;line-height: 15.0pt;margin: 5.0pt 0.0pt 5.0pt 26.5pt;list-style-position: inherit;list-style-type: inherit;">Located in the beautiful San Francisco Bay Area with access to a vibrant scientific community.</li></ul><div style="border: 0.0px;font-style: inherit;font-variant: inherit;font-weight: inherit;font-stretch: inherit;font-size: 11.0pt;line-height: 15.0pt;font-family: Aptos , Aptos_EmbeddedFont , Aptos_MSFontService , Calibri , Helvetica , sans-serif;font-size-adjust: inherit;margin: 3.75pt 3.75pt 3.75pt 0.0pt;padding: 0.0px;vertical-align: baseline;color: rgb(0,0,0);text-align: left;text-indent: 0.0px;"><b>Skills:</b></div><ul style="text-align: left;margin: 0.0pt;padding-left: 0.0pt;list-style-position: inside;list-style-type: disc;"><li style="font-family: Aptos , Aptos_EmbeddedFont , Aptos_MSFontService , Calibri , Helvetica , sans-serif;font-size: 11.0pt;color: rgb(0,0,0);text-indent: 0.0pt;line-height: 15.0pt;margin: 5.0pt 0.0pt 5.0pt 26.5pt;list-style-position: inherit;list-style-type: inherit;">Demonstrated ability to work independently as well as part of a collaborative team environment, with a proactive approach to problem-solving and advancing research programs.</li><li style="font-family: Aptos , Aptos_EmbeddedFont , Aptos_MSFontService , Calibri , Helvetica , sans-serif;font-size: 11.0pt;color: rgb(0,0,0);text-indent: 0.0pt;line-height: 15.0pt;margin: 5.0pt 0.0pt 5.0pt 26.5pt;list-style-position: inherit;list-style-type: inherit;">Strong enthusiasm for scientific research and innovation, coupled with excellent organizational skills and the ability to manage multiple tasks and projects simultaneously.</li><li style="font-family: Aptos , Aptos_EmbeddedFont , Aptos_MSFontService , Calibri , Helvetica , sans-serif;font-size: 11.0pt;color: rgb(0,0,0);text-indent: 0.0pt;line-height: 15.0pt;margin: 5.0pt 0.0pt 5.0pt 26.5pt;list-style-position: inherit;list-style-type: inherit;">Commitment to maintaining up-to-date knowledge of advancements in oligonucleotide chemistry and related fields, with a willingness to engage in ongoing professional development.</li><li style="font-family: Aptos , Aptos_EmbeddedFont , Aptos_MSFontService , Calibri , Helvetica , sans-serif;font-size: 11.0pt;color: rgb(0,0,0);text-indent: 0.0pt;line-height: 15.0pt;margin: 5.0pt 0.0pt 5.0pt 26.5pt;list-style-position: inherit;list-style-type: inherit;">Expertise in solid-phase oligonucleotide synthesis and purification, with a strong track record of successful project outcomes.</li><li style="font-family: Aptos , Aptos_EmbeddedFont , Aptos_MSFontService , Calibri , Helvetica , sans-serif;font-size: 11.0pt;color: rgb(0,0,0);text-indent: 0.0pt;line-height: 15.0pt;margin: 5.0pt 0.0pt 5.0pt 26.5pt;list-style-position: inherit;list-style-type: inherit;">Excellent written and verbal communication skills, with the ability to effectively present data and findings to both technical and non-technical audiences.</li></ul><div style="border: 0.0px;font-style: inherit;font-variant: inherit;font-weight: inherit;font-stretch: inherit;font-size: 11.0pt;line-height: 15.0pt;font-family: Aptos , Aptos_EmbeddedFont , Aptos_MSFontService , Calibri , Helvetica , sans-serif;font-size-adjust: inherit;margin: 3.75pt 3.75pt 3.75pt 0.0pt;padding: 0.0px;vertical-align: baseline;color: rgb(0,0,0);text-align: left;text-indent: 0.0px;"><b>Work Style:</b></div><ul style="text-align: left;margin: 0.0pt;padding-left: 0.0pt;list-style-position: inside;list-style-type: disc;"><li style="font-family: Aptos , Aptos_EmbeddedFont , Aptos_MSFontService , Calibri , Helvetica , sans-serif;font-size: 11.0pt;color: rgb(0,0,0);text-indent: 0.0pt;line-height: 15.0pt;margin: 5.0pt 0.0pt 5.0pt 26.5pt;list-style-position: inherit;list-style-type: inherit;">This is an onsite daily role in San Rafael, CA.</li><li style="font-family: Aptos , Aptos_EmbeddedFont , Aptos_MSFontService , Calibri , Helvetica , sans-serif;font-size: 11.0pt;color: rgb(0,0,0);text-indent: 0.0pt;line-height: 15.0pt;margin: 5.0pt 0.0pt 5.0pt 26.5pt;list-style-position: inherit;list-style-type: inherit;">This role will have a daily presence in our Research labs executing experiments.</li><li style="font-family: Aptos , Aptos_EmbeddedFont , Aptos_MSFontService , Calibri , Helvetica , sans-serif;font-size: 11.0pt;color: rgb(0,0,0);text-indent: 0.0pt;line-height: 15.0pt;margin: 5.0pt 0.0pt 5.0pt 26.5pt;list-style-position: inherit;list-style-type: inherit;">This position represents an exciting opportunity to contribute to BioMarin's mission of developing innovative therapies for patients with serious and life-threatening conditions. We look forward to welcoming a passionate and skilled oligonucleotide chemist to our team.</li></ul><div style="border: 0.0px;font-style: inherit;font-variant: inherit;font-weight: inherit;font-stretch: inherit;font-size: 11.0pt;line-height: inherit;font-family: Aptos , Aptos_EmbeddedFont , Aptos_MSFontService , Calibri , Helvetica , sans-serif;font-size-adjust: inherit;margin: 0.0px;padding: 0.0px;vertical-align: baseline;color: rgb(0,0,0);"></div><div style="border: 0.0px;font-style: inherit;font-variant: inherit;font-weight: inherit;font-stretch: inherit;font-size: 11.0pt;line-height: inherit;font-family: Aptos , Aptos_EmbeddedFont , Aptos_MSFontService , Calibri , Helvetica , sans-serif;font-size-adjust: inherit;margin: 0.0px;padding: 0.0px;vertical-align: baseline;color: rgb(0,0,0);"></div><p><br /><br />Note: This description is not intended to be all-inclusive, or a limitation of the duties of the position. It is intended to describe the general nature of the job that may include other duties as assumed or assigned. <br /><br />Equal Opportunity Employer/Veterans/Disabled <br /><br />An Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, or protected veteran status and will not be discriminated against on the basis of disability.<br /><br />Ireland Safety Responsibility<br />Support the organization’s commitment to environmental protection, injury prevention, and continual improvement of EHS management systems. Actively contribute to a safe and environmentally responsible workplace by identifying hazards, reporting incidents and participating in EHS initiatives and training.</p>

Job details

Seniority
Not listed
Function
Drug Discovery & Preclinical Research
Therapeutic area
Not listed
Location
San Rafael, United States
Employment type
Fulltime-Regular

How this role compares

Computed from every other active Drug Discovery & Preclinical Research role in our database, not just this employer's listings.

We currently track 1022 comparable Drug Discovery & Preclinical Research roles across 81 biopharma companies.

1022Comparable roles tracked
937Currently active
81Companies hiring similar roles
31Countries represented

Salary context

429 of 1022 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 Not listed on this posting
Highest disclosed · Vice President, Therapeutics Immunology · ModernaTX, Inc. $272,200/yr – $490,100/yr
Peer group range $0 – $381,150 (median $159,000)

Where these roles are based

Top locations among the 1022 comparable roles

United States692
Germany50
China44
Switzerland36
United Kingdom35
France26

+ 25 more countries

Seniority mix

739 of 1022 peers have a known seniority level

Senior235
Principal171
Intern/Fellow/Postdoc84
Associate78
Director62
Associate Director43
Senior Director26
Manager26
Executive/VP14

Therapeutic area mix

134 of 1022 peers have a known therapeutic area; the rest are genuinely unlabeled, not hidden

Immunology54
Oncology41
Neuroscience23
Cardiovascular / CVRM6
Vaccines & Infectious Disease3
Respiratory3
Dermatology & Aesthetics2
Gastroenterology1
Rare Disease1

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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
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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%
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Function Therapeutic area Seniority Country
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Function Therapeutic area Seniority Country
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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.