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Senior Scientist – LNP Formulation

Thermo Fisher Scientific
Boston, MA Full Time
POSTED ON 11/4/2026
AVAILABLE BEFORE 12/3/2026
Work Schedule

First Shift (Days)

Environmental Conditions

Adherence to all Good Manufacturing Practices (GMP) Safety Standards, Laboratory Setting

Senior Scientist – LNP Formulation

Shift: Full-Time; Monday – Friday; 8am-5pm EST

ONSITE:

This is a fully onsite role based at our customer’s site in (Boston, MA). We welcome applicants from all locations within the US. Please note that relocation assistance is not provided for this position, and any relocation costs will be the responsibility of the candidate. 

Must be legally authorized to work in the United States without sponsorship.

Must be able to pass a comprehensive background check, which includes a drug screening.

At Thermo Fisher Scientific, you’ll discover meaningful work that makes a positive impact on a global scale. Join our colleagues in bringing our Mission to life - enabling our customers to make the world healthier, cleaner and safer. We provide our teams with the resources needed to achieve individual career goals while taking science a step beyond through research, development and delivery of life-changing therapies. With clinical trials conducted in 100 countries and ongoing development of novel frameworks for clinical research through our PPD clinical research portfolio, our work spans laboratory, digital and decentralized clinical trial services. Your determination to deliver quality and accuracy will improve health outcomes that people and communities depend on – now and in the future.

Thermo Fisher's clinical research business is a leading global contract research organization and world leader in serving science. We are passionate, deliberate, and driven by our mission – to enable our customers to make the world healthier, safer, and cleaner.

Our Laboratories Functional Service Partnership (FSP) team plays a direct role in advancing drug development by creating sustained groups of talent within our customers’ organizations to provide long-term support. Through this collaborative approach, our professionals bring their commitment to excellence, industry knowledge, and operational strength directly into customer environments, helping to enhance capabilities and advance the delivery of life-changing therapies.

Key responsibilities:

  • Manufacture small and large scale LNP formulations including production, purification and analysis of LNPs using industry standard protocols.
  • Meet established deadlines.
  • Maintain clear and complete ELN-based experimental records.
  • Take part in troubleshooting arise during protocol execution and identify opportunities for protocol and/or process improvement.
  • Support LNP optimization and formulation processes development such as mixing rate and purification conditions to improve yields and scalability of formulation.
  • Troubleshoot low-yield processes and compositions to achieve formulation targets (i.e., composition design to enable specific delivery outcomes).
  • Follow SOPs to generate and maintain thorough and accurate documentation.
  • Proven ability to adapt to strategic changes in a dynamic and fast-paced drug development environment.
  • Willingness to learn new techniques and expand technical capabilities.
  • Ability to work collaboratively within a team.

Education and Experience:

  • Bachelor's degree in lab sciences such as Chemistry, Biochemistry, Material Science, Immunology, Biology, Molecular Biology or similar
  • Sr. Scientist: Previous experience that provides the knowledge, skills, and abilities to perform the job (comparable to 4 years’)
  • OR Masters degree and previous experience that provides the knowledge, skills, and abilities to perform the job (comparable to 2 years’)
  • OR PhD

In some cases, an equivalency, consisting of a combination of appropriate education, training and/or directly related experience, will be considered sufficient for an individual to meet the requirements of the role.

Knowledge, Skills and Abilities:

  • Extensive hands-on experience in various LNP formation mixing technologies, including but not limited to various microfluidic mixing and Impingement Jet Mixing devices.
  • Ample hands-on experience and knowledge on LNP purification techniques including TFF.
  • Proficiency in assembling and operating various mixer and TFF systems.
  • Deep hands-on experience in LNP process development experiments focused on maintaining product quality.
  • Experience on LNP formulation manufacturing for non-human primate studies.
  • Complete knowledge and experience on various LNP analytics including Size, PDI, RNA encapsulation, Osmolality, and Endotoxin measurement.
  • Exemplary work ethic and commitment to scientific rigor.
  • Strong communication skills.

Working Environment:

Below is listed the working environment/requirements for this role:

Able to communicate, receive, and understand information and ideas with diverse groups of people in a comprehensible and reasonable manner.

Able to work upright and stationary and/or standing for typical working hours.

Able to lift and move objects up to 25 pounds

Able to work in non-traditional work environments.

Able to use and learn standard office equipment and technology with

proficiency.

May have exposure to potentially hazardous elements, including infectious agents, typically found in healthcare or laboratory environments.

Able to perform successfully under pressure while prioritizing and handling multiple projects or activities.

Benefits

We offer competitive remuneration, annual incentive plan bonus, healthcare, and a range of employee benefits. Thermo Fisher Scientific offers employment with an innovative, forward-thinking organization, and outstanding career and development prospects. We offer an exciting company culture that stands for integrity, intensity, involvement, and innovation!

Compensation And Benefits

The salary range estimated for this position based in Massachusetts is $95,000.00–$100,100.00.

This position may also be eligible to receive a variable annual bonus based on company, team, and/or individual performance results in accordance with company policy. We offer a comprehensive Total Rewards package that our U.S. colleagues and their families can count on, which includes:

  • A choice of national medical and dental plans, and a national vision plan, including health incentive programs
  • Employee assistance and family support programs, including commuter benefits and tuition reimbursement
  • At least 120 hours paid time off (PTO), 10 paid holidays annually, paid parental leave (3 weeks for bonding and 8 weeks for caregiver leave), accident and life insurance, and short- and long-term disability in accordance with company policy
  • Retirement and savings programs, such as our competitive 401(k) U.S. retirement savings plan
  • Employees’ Stock Purchase Plan (ESPP) offers eligible colleagues the opportunity to purchase company stock at a discount

For more information on our benefits, please visit: https://jobs.thermofisher.com/global/en/total-rewards

Salary : $95,000 - $100,100

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