Biogen Posted June 10, 2026

Scientist I, ASO Process Development and Manufacturing

Cambridge, United States Full time
Manufacturing & CMC

Biogen 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

About This Role:

We are   seeking   a highly motivated and creative individual to join our Oligonucleotide Chemical Development team as a Scientist I. This role is   an   exciting   opportunity to develop robust processes for the synthesis of oligonucleotides, contributing significantly to both clinical and commercial therapeutics. You will gain hands-on experience in designing and developing manufacturing processes, working closely with our development and manufacturing teams. Your efforts will enhance process robustness, productivity, and impurity control, bringing substantial value to our work in oligonucleotide synthesis. As part of the larger Biogen structure, your contributions will play a pivotal role in advancing our scientific endeavors and   impacting   patient outcomes.

What   You’ll   Do:

• Collaborate with development and manufacturing teams to design and conduct laboratory experiments to   optimize   synthesis processes.

• Perform   ASO   pilot-scale syntheses   to   support   preclinical   studies.

• Accurately record experimental procedures and data.

• Communicate research results effectively through   writing   reports and presenting in meetings.

• Engage in CMC activities, including authoring CMC sections of INDs.

Who You Are:

You are passionate about exploring novel scientific ideas and eager to play a key role in developing   cutting-edge   technologies. Your vision aligns with Biogen’s   state-of-the-art   science in oligonucleotide synthesis, and you have a strong commitment to   impacting   patient lives positively. You thrive in a collaborative environment and are driven by a desire to innovate and contribute to scientific advancements.

Required Skills:

• M . S. with 0-2 years of relevant experience in pharmaceutical or biotech settings.

• B .S   with more than 3 years of relevant experience in pharmaceutical or biotech settings.

• Specialization in synthetic organic chemistry, with excellent synthetic skills and a deep understanding of reactivity and reaction mechanisms.

• Ability to work both independently and collaboratively, with effective communication skills in written and oral forms.

• Self-driven, independent thinker, vigorous and   thorough in   experimentation and data interpretation.

Preferred Skills:

• Experience in nucleoside chemistry or oligonucleotide synthesis.

• Perform synthetic process research and development of drug candidates and conjugates.

• Continuous improvement mindset for research projects and synthesis processes.

Job Level: Professional

Additional Information

The base compensation range for this role is: $103,000.00-$134,000.00

Base salary offered is determined through an analytical approach utilizing a combination of factors including, but not limited to, relevant skills & experience, job location, and internal equity.

Regular employees are eligible to receive both short term and long-term incentives, including cash bonus and equity incentive opportunities, designed to reward recent achievements and recognize your future potential based on individual, business unit and company performance.

In addition to compensation, Biogen offers a full and highly competitive range of benefits designed to support our employees’ and their families physical, financial, emotional, and social well-being ; including, but not limited to:

Medical, Dental, Vision, & Life insurances

Fitness & Wellness programs including a fitness reimbursement

Short- and Long-Term Disability insurance

A minimum of 15 days of paid vacation and an additional end-of-year shutdown time off (Dec 26-Dec 31)

Up to 12 company paid holidays + 3 paid days off for Personal Significance

80 hours of sick time per calendar year

Paid Maternity and Parental Leave benefit

401(k) program participation with company matched contributions

Employee stock purchase plan

Tuition reimbursement of up to $10,000 per calendar year

Employee Resource Groups participation

Why Biogen?

We are a global team with a commitment to excellence, and a pioneering spirit. As a mid-sized biotechnology company, we provide the stability and resources of a well-established business while fostering an environment where individual contributions make a significant impact. Our team encompasses some of the most talented and passionate achievers who have unparalleled opportunities for learning, growth, and expanding their skills. Above all, we work together to deliver life-changing medicines, with every role playing a vital part in our mission. Caring Deeply. Achieving Excellence. Changing Lives.

At Biogen, we are committed to building on our culture of inclusion and belonging that reflects the communities where we operate and the patients we serve. We know that diverse backgrounds, cultures, and perspectives make us a stronger and more innovative company, and we are focused on building teams where every employee feels empowered and inspired.  Read on  to learn more about Biogen.

All qualified applicants will receive consideration for employment without regard to sex, gender identity or expression, sexual orientation, marital status, race, color, national origin, ancestry, ethnicity, religion, age, veteran status, disability, genetic information or any other basis protected by federal, state or local law. Biogen is an E-Verify Employer in the United States.

Job details

Seniority
Not listed
Function
Manufacturing & CMC
Therapeutic area
Not listed
Location
Cambridge, 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

456 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 Not listed on this posting
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
40%
Senior/Principal Scientist, Bioprocess Purification Development
Lilly · Indianapolis, Indiana, United States of America · Principal
Function Therapeutic area Seniority Country
40%
Senior Principal Scientist - Bioanalytical Research
Lilly · Louisville, Colorado, United States of America · Principal
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.