Formulation Scientist (Polymeric, Lipid Nano- and Microparticles)

Located in Hopkinton, MA, Phosphorex is a fast-growing contract development and manufacturing organization (CDMO) specializing in drug delivery, including sustained release and nanomedicine-based formulations. Phosphorex partners with the biomedical community to develop a variety of particle- based pharmaceutical formulations.


We are seeking a motivated, talented, hard-working team player to join our group to work on various partner drug delivery programs to advance development of next generation formulations. Some of the therapeutic areas we work in include vaccine development, oncology, immunotherapy, and immuno-oncology.

Stand-out candidates will be passionate about designing and conducting experiments to support research and development projects in the areas of sustained release, targeted drug delivery, microspheres, nanoparticles, and solubility enhancement.

Key Responsibilities

  • Preparation of polymer and lipid-based microsphere and nanoparticle formulations
  • Development and optimization of formulations and processes to support proof of concept and pre-clinical studies
  • Manufacture microparticles and nanoparticles using aseptic technique under GLP
  • Perform characterization including particle size analyzers, in vitro release, limited stability study
  • Compile and summarize data, prepare batch records

Job Functions

  • Design and execute experiments and interpret results
  • Maintain detailed laboratory notebook
  • Interact with team members, understand and participate in progress of the project
  • Adhere to safety standards, FDA procedures, and department SOPs
  • Prepare and review documents including experimental methods, specifications, SOPs, protocols and reports
  • ​Participate in partner technical team meetings

Requirements and Qualifications

  • BS., M.S. in chemistry, biochemistry, material science, polymer sciences, pharmaceutical sciences or related discipline with a minimum of 0-5 years of experience
  • Hands-on laboratory experience
  • Understanding of emulsion process, colloid chemistry, and particle sciences is a plus
  • Experience with biodegradable polymeric systems and development of micro-and nano-particle formulations is a plus
  • Well-versed in Microsoft Office applications

Working at Phosphorex

Phosphorex offers a collaborative, continuous learning team environment and a competitive salary with benefits including medical & dental insurance, paid vacation and holidays and 401K match.

Interested candidates – submit your resume and cover letter (optional) to: