RSIS International

Ratnesh Joshi

Mr. Ratnesh Joshi

Associate Director

Editas Medicine Inc.
Country
United States of America
Education
Master of Science in Biological Science
Journal
International Journal of Research and Scientific Innovation (IJRSI), International Journal of Research and Innovation in Applied Science (IJRIAS), International Journal of Latest Technology in Engineering, Management & Applied Science (IJLTEMAS)
Biography
Ratnesh Sudhir Joshi

Revere Street, Malden, MA 02148

Summary
  • Over 15 years of experience in downstream process development for diverse molecule modalities.
  • Broad expertise in chromatography, ultrafiltration/diafiltration, clarification, and analytical support.
  • Proven success in process optimization, scale-up, risk assessment (FMEA), and tech transfer to manufacturing.
  • Extensive collaboration with cross-functional teams and external CMOs/CDMOs.
  • Demonstrated leadership, project management, and regulatory support experience.
Technical Skills
  • Hands-on with AKTA systems, diverse chromatography modes, UF/DF, dialysis, and high-throughput screening.
  • Expertise in clarification processes, analytical methods (HPLC, SDS PAGE), and endotoxin testing.
  • Familiar with upstream processes, oligonucleotide synthesis, and antibody-drug conjugation techniques.
Work Experience
Editas Medicine Inc., Cambridge, MA

Associate Director (July 2024 – Present)
Senior Manager (May 2021 – July 2024)

  • Led downstream purification development for Cas12a enzyme and AAV vectors.
  • Directed FMEA risk assessments, DOE studies, and technology transfers to CMOs.
  • Supported IND filings, authored technical documentation, and participated in regulatory meetings.
Takeda Pharmaceuticals, Lexington, MA

Senior Engineer (March 2018 – May 2021)

  • Improved purification yield by 25% through 2nd-gen downstream development for enzyme therapies.
  • Led technical cross-functional teams and managed CDMO collaboration for humabody programs.
Biogen Inc., Cambridge, MA

Associate Scientist III (Feb 2016 – Mar 2018)
Associate Scientist II (Dec 2012 – Feb 2016)

  • Developed aqueous-based ASO purification process with improved purity and integrated it in manufacturing.
  • Contributed to Biogen’s late-stage clinical manufacturing strategy and ASO process scale-up.
Research Interests
Medical and Health Sciences
Experience
15
Other Reviewer
a03776c4-8e33-4ea3-9891-5f42c623bf75
Mr. Kenneth Aga B. Sagarino
Ms. Adashi Margaret Odama
Ms. Adashi Margaret Odama
Mr. Abayomi Ogayemi
Mr. Abayomi Ogayemi
Mr. Isa Elabor
Mr. Isa Elabor
Mr. James Ipuole Agaji
Mr. James Ipuole Agaji
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