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Rajesh Krishnan Email & Phone Number

CTO at Sonoma Biotherapeutics
Location: Carlsbad, California, United States 8 work roles 2 schools
1 work email found @oncternal.com LinkedIn matched
✓ Verified May 2026 4 data sources Profile completeness 100%

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Current company
Sonoma Biotherapeutics
Role
CTO
Location
Carlsbad, California, United States
Company size
117 employees

Who is Rajesh Krishnan? Overview

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Quick answer

Rajesh Krishnan is listed as CTO at Sonoma Biotherapeutics, a company with 117 employees, based in Carlsbad, California, United States. AeroLeads shows a work email signal at oncternal.com and a matched LinkedIn profile for Rajesh Krishnan.

Rajesh Krishnan previously worked as Chief Scientific Officer and Chief Technical Officer at Oncternal Therapeutics and Chief Technical Officer at Oncternal Therapeutics. Rajesh Krishnan holds Phd, Biochemical Engineering from University Of California, Davis.

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Email format at Sonoma Biotherapeutics

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{first_initial}{last}@oncternal.com
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Profile bio

About Rajesh Krishnan

As an R & D, CMC and commercial process, project and development leader, I have successfully led all aspects of drug substance and product development across multiple modalities, including biologics (antibodies, bispecifics, fusion proteins, cytokines, biosimilars), pharmaceuticals (including high potent), oligonucleotides, vaccines (human health and animal health), and cell therapy. I have led these programs from preclinical through clinical and commercial development and licensure. , due diligence, technology transfer, clinical and commercial manufacturing, and technical operations. In my roles, I have led activities across manufacturing, preclinical, clinical and process development, due diligence for in-licensing opportunities, regulatory CMC, process validation, analytical development and quality control for drug substance and drug product. My career experience includes:  Research, development, scale-up and transfer of over 50 biologics, vaccine, cell therapy and small molecule processes for clinical and commercial manufacturing (US/Europe/Asia) with multiple successful INDs, CTAs, and IMPDs Post-licensure filings and successful BLA submission  Strong cross-functional CMC project leadership for resolving conflicts, driving consensus, and cultivating internal and external strategic alliances with manufacturing partners amidst changing priorities. Extensive knowledge of GLP, GMP and regulatory requirements within the U.S and Europe to lead successful regulatory approvals (INDs, Type C meetings, BLA, MAA), post-licensure changes, and facility inspections.  Development of an automated autologous cell therapy clinical program with 14 day vein-vein timeI pride myself on being a visionary collaborative leader with strong performance, cross-functional CMC project leadership, and problem-solving skills for resolving conflicts, driving consensus to maximize cross-functional team productivity, cultivating strategic alliances with external manufacturing, and managing multiple concurrent projects and changing priorities. • Cross-Functional Project Team Leadership • Drug Process Development, Process Characterization, Risk Assessment & Validation • Budget Management • Scale Translation, Facility Gap Analysis & Technology Transfer • Business Development • Due Diligence • Regulatory Filings (multiple INDs and IMPDs, including all amendments and responses • Platform Development • cGMP • QbD

Listed skills include Technology Transfer, Fermentation, Biotechnology, Biopharmaceuticals, and 43 others.

Current workplace

Rajesh Krishnan's current company

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Sonoma Biotherapeutics
Sonoma Biotherapeutics
CTO
Carlsbad, CA, US
Website
sonomabio.com
Employees
117
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Company profile
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8 roles · 26 years

Rajesh Krishnan work experience

A career timeline built from the work history available for this profile.

Chief Scientific Officer And Chief Technical Officer

Current
Oncternal Therapeutics

San Diego, California, US

Dec 2023 - Present

Chief Technical Officer

Current
Oncternal Therapeutics

San Diego, California, US

Lead all process development, drug substance and drug product external manufacturing, regulatory and quality programs for our three oncology clinical programs, consisting of a monoclonal antibody, a small molecule pharmaceutical and a novel CAR-T.

Aug 2019 - Present

Vice President, Process Development And Manufacturing Sciences

Dynavax Technologies

Emeryville, CA, US

Lead process, analytical and drug product development teams as well as clinical QC operations for clinical pipeline programs and commercial manufacturing sciences and technical operations for commercial manufacturing. Lead CMC post-licensure process optimization, scale translation, and strategy for commercial program Heplisav-B. Responsible for external.

Jan 2018 - Aug 2019

Director, Biologics Drug Substance Process Development

Gilead Sciences

Foster City, CA, US

Led 40+ scientists and provide strategic and operational management for the Drug Substance Department (cell culture, purification, cell line development, preclinical candidate assessment, and tech transfer). Drive development programs from preclinical pipeline research, scale-up, tech transfer, manufacturing, to process validation/qualification. Oversee.

2012 - 2017 ~5 yrs

Associate Director, Cell Culture And Fermentation Development

Merck

Rahway, New Jersey, US

Managed process development and technology transfer for all biologics programs from discovery through clinical development.Led a dynamic cross-functional team of 20 scientists, engineers, and technicians through development of robust cell culture, microbial fermentation, and recovery processes for novel and biosimilar mABs and proteins. Directed a global.

2005 - 2012 ~7 yrs

Research Scientist, Late Stage Development And Transfer

Amgen

Thousand Oaks, CA, US

Led upstream and harvest development, process characterization and tech transfer to clinical manufacturing (US and Europe) for mammalian and microbial-based processes. Led deviation classification and resolution for clinical manufacturing and supported CPV activities for two commercial programs.

2003 - 2005 ~2 yrs

Research Scientist

Pfizer

New York, New York, US

Led upstream and formulation development and tech transfer to clinical manufacturing for 8 Animal Health viral and parasitic vaccine programs. Authored regulatory submissions to the USDA. Designed and implemented a clean-in place/biowaste kill system for production facility. Developed process and cost of good maps for manufacturing.

2000 - 2003 ~3 yrs
Team & coworkers

Colleagues at Sonoma Biotherapeutics

Other employees you can reach at sonomabio.com. View company contacts for 117 employees →

EJ Emma Jung Emma Jung Colleague at Sonoma Biotherapeutics Davis, California, United States, United States View → JC Jody Cook Jody Cook Colleague at Sonoma Biotherapeutics Seattle, Washington, United States, United States View → JK Jordan Koeppen Jordan Koeppen Colleague at Sonoma Biotherapeutics San Francisco Bay Area, United States View → TK Tabitha Kim Tabitha Kim Colleague at Sonoma Biotherapeutics South San Francisco, California, United States, United States View → IC Ivan Conde Palacios, Msc Ivan Conde Palacios, Msc Colleague at Sonoma Biotherapeutics Greater Seattle Area, United States View → CS Christine Saechao Christine Saechao Colleague at Sonoma Biotherapeutics San Francisco Bay Area, United States View → CC Claire Crowther Claire Crowther Colleague at Sonoma Biotherapeutics Raleigh-Durham-Chapel Hill Area, United States View → JT Jeff Tracy Jeff Tracy Colleague at Sonoma Biotherapeutics Seattle, Washington, United States, United States View → BP Brian Phong Brian Phong Colleague at Sonoma Biotherapeutics Elk Grove, California, United States, United States View → BB Brenna Boone Brenna Boone Colleague at Sonoma Biotherapeutics Bellevue, Washington, United States, United States View →
2 education records

Rajesh Krishnan education

Phd, Biochemical Engineering

University Of California, Davis

Bse, Chemical Engineering (W/ Molecular Biology Certificate)

Princeton University
FAQ

Frequently asked questions about Rajesh Krishnan

Quick answers generated from the profile data available on this page.

What company does Rajesh Krishnan work for?

Rajesh Krishnan works for Sonoma Biotherapeutics.

What is Rajesh Krishnan's role at Sonoma Biotherapeutics?

Rajesh Krishnan is listed as CTO at Sonoma Biotherapeutics.

What is Rajesh Krishnan's email address?

AeroLeads has found 1 work email signal at @oncternal.com for Rajesh Krishnan at Sonoma Biotherapeutics.

Where is Rajesh Krishnan based?

Rajesh Krishnan is based in Carlsbad, California, United States while working with Sonoma Biotherapeutics.

What companies has Rajesh Krishnan worked for?

Rajesh Krishnan has worked for Sonoma Biotherapeutics, Oncternal Therapeutics, Dynavax Technologies, Gilead Sciences, and Merck.

Who are Rajesh Krishnan's colleagues at Sonoma Biotherapeutics?

Rajesh Krishnan's colleagues at Sonoma Biotherapeutics include Emma Jung, Jody Cook, Jordan Koeppen, Tabitha Kim, and Ivan Conde Palacios, Msc.

How can I contact Rajesh Krishnan?

You can use AeroLeads to view verified contact signals for Rajesh Krishnan at Sonoma Biotherapeutics, including work email, phone, and LinkedIn data when available.

What schools did Rajesh Krishnan attend?

Rajesh Krishnan holds Phd, Biochemical Engineering from University Of California, Davis.

What skills is Rajesh Krishnan known for?

Rajesh Krishnan is listed with skills including Technology Transfer, Fermentation, Biotechnology, Biopharmaceuticals, Process Simulation, Protein Chemistry, Drug Development, and Biologics.

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