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Associate Scientist II, RNA Synthesis

Alnylam Pharmaceuticals
Cambridge, MA Full Time
POSTED ON 6/19/2026
AVAILABLE BEFORE 7/18/2026
Overview

We are looking for a talented and highly motivated Associate Scientist II to join our RNA synthesis group and support our mission to deliver the next generation of RNAi-based medicines. The successful candidate will contribute to the purification and analysis of oligonucleotides in support of our growing RNAi drug development platform.

This position is onsite and will be primarily located in Cambridge, MA.

Key Responsibilities

  • Purification and analysis of chemically modified oligonucleotides using automated platforms.
  • Utilize a various range of HPLC prep instruments to perform purification and desalting of the synthesized oligonucleotides.
  • Utilize analytical instrumentation such as UV-Vis spectroscopy, HPLC, and/or LC-MS for the analysis of both crude and purified synthetic products. Effectively troubleshoot synthetic/process issues and independently find solutions.
  • Improve upon and/or develop new methods and automation for the downstream processing of synthetic oligonucleotides and their subsequent analysis/purification and annealing into siRNA duplexes.
  • Maintain clear, accurate, and timely experimental documentation.
  • Maintain and troubleshoot essential lab equipment, coordinating servicing and repairs as needed.
  • Analyze, interpret, and organize analytical data to present to team members.

Qualifications

  • Bachelor’s in Chemistry, Biochemistry, or a related field.
  • 0-3 years of relevant work experience, preferably in an industrial setting.
  • Experience with solid-phase synthesis (oligonucleotides, peptides, etc) is preferred but a background in organic chemistry is sufficient.
  • Experience with instrumentation such as analytical and prep HPLC, LC-MS, UV-Vis spectrometry, etc. is required.
  • Good understanding of chromatography and experience in developing methods (IEX/RP HPLC, LC-MS) is a plus.
  • Ability to function within a highly interdisciplinary environment is a must.
  • Excellent written and oral communication skills, good organization skills, the ability to multitask, and the ability to work within a team and/or independently are required.

U.S. Pay Range

$67,600.00 - $101,400.00

The pay range reflects the full-time base salary range we expect to pay for this role at the time of posting. Base pay will be determined based on a number of factors including, but not limited to, relevant experience, skills, and education. This role is eligible for an annual short-term incentive award (e.g., bonus or sales incentive) and an annual long-term incentive award (e.g., equity).

Alnylam’s robust Total Rewards package is designed to support your overall health and well-being. We offer comprehensive benefits including medical, dental, and vision coverage, life and disability insurance, a lifestyle reimbursement program, flexible spending and health savings accounts and a 401(k)with a generous company match. Eligible employees enjoy paid time off, wellness days, holidays, and two company-wide recharge breaks. We also offer generous family resources and leave. Our commitment to your well-being reflects our belief that caring for our people fuels the impact we create together.

Learn more about these and additional benefits offered by Alnylam by visiting the Benefits section of the Careers website: https://www.alnylam.com/careers

About Alnylam

We are the leader in RNAi therapeutics – a revolutionary approach with the potential to transform the lives of people with rare and common diseases. Built on Nobel Prize-winning science, Alnylam has delivered the breakthroughs that made RNAi therapeutics possible and are just at the beginning of what’s possible. Our deep pipeline, late-stage programs, and bold vision reflect our core values: fierce innovation, passion for excellence, purposeful urgency, open culture and commitment to people. We're proud to be a globally recognized top employer, where an authentic, inclusive culture and breakthrough thinking fuel one another.

At Alnylam, we commit to an inclusive recruitment process and equal employment opportunity. Qualified applicants will receive consideration for employment without regard to their sex, gender or gender identity, sexual orientation, race, color, ethnicity, national origin, ancestry, citizenship, religion, creed, physical or mental disability, pregnancy status or related conditions, genetic information, veteran or military status, marital or familial status, political affiliation, age, or any other factor protected by federal, state, or local law. Alnylam is an E-Verify Employer.

Salary : $67,600 - $101,400

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