Building the Teams Behind Breakthroughs
Secure transformative leaders who shape trajectory and drive results.
Embedded support for biotech companies scaling without internal TA infrastructure.
Precision hiring across discovery, development, and technical operations.

Jeff Caskey started Nexagen Search in 2023 to help biotechnology leaders solve one of the most important challenges in company building: assembling the right team. Like a puzzle, every organization requires a unique combination of scientific, operational, and leadership talent to reach its goals.
Nexagen partners with executive teams to identify the critical pieces needed at each stage of growth and implements milestone-driven recruiting strategies that align hiring with the company's development roadmap.
Deep industry experience provides a stronger understanding of life sciences talent markets, hiring challenges, and organizational growth.
A proven track record creates pattern recognition that helps identify and attract the right talent more efficiently.
Experience supporting a diverse range of organizations provides valuable perspective on how successful companies build and scale teams

VP, Drug Discovery
Executive Director, Head of Biologics
Senior Director, Biology
Senior Director, Bioinformatics
Director, Antibody Discovery
Executive Director, Biologics
Senior Scientist I, Biology
Senior Scientist, Drug Discovery
Senior Scientist, Antibody Discovery
Senior Scientist, Preclinical Development
Senior Scientist, Cell Biology

Executive Director, Clinical Ops
Director, Clinical Science
Associate Director, Clinical Biomarkers
Associate Director, Clinical Ops
Senior CMC Program Manager
CMC Lead, Biologics
Scientist, Toxicology
Senior Scientist, Biomarkers
Director, Analytical Sciences
Director, Protein Purification
Director of Analytical Development
Scientist, Cell Therapy R&D

Head of Business Development
Senior Director, Program Management
Lab Operations Manager
Director, Human Resources
Controller
Director, Manufacturing
Director of Marketing
Corporate Controller, SEC Reporting
Director, Supply Chain
Director of Quality Systems
Scientist, Translational Research

Head of Manufacturing
Head of Facilities and Engineering
Head of GMP Quality
Senior Manager, Manufacturing
Manager, Operations (HR/Finance)
Executive Assistant to CEO
Director, CMC Program Management Associate Director, Downstream PD Principal PD Scientist
Senior Scientist, Process Development
Project Manager, CMC
Senior Scientist, Biology
We align hiring strategy with scientific and operational inflection points - reducing execution risk and accelerating progress.

Research
Drug Discovery
Computational Biology
Translational Science

Nonclinical/Preclinical
CMC
Regulatory Affairs
Program Leadership

Clinical Development
Translational & Biomarkers
CMC Scale Up
Operations & Infrastructure

Manufacturing & Quality
Commercial Strategy
Corporate Infrastructure
Legal/Compliance
"Jeff is an exceptional recruiter and has sourced and hired wonderful talent for our organization. If you have a requisition that requires turning over every stone to find that needle in a haystack, Jeff is a fantastic resource and an ethical recruiter and business partner."
- Angela Biehl
"Jeff helped place me in my first position after my PhD and found a perfect fit for me. He was professional, genuine and a great communicator. I am lucky to have crossed paths with Jeff when I did! "
- Alexandra Wolfarth
"Working with Jeff for several years has been an absolute pleasure. He has a deep understanding of the industry and can analyze the needs for the roles our company is looking for. Jeff always puts his best efforts to find the best candidates and the people Jeff recruited for us have a great team dynamic and are a great fit for the company."
- Sun Young Hwang
"Jeff is a highly skilled recruiter who masterfully aligns corporate hiring goals with the wants and needs of job candidates."
- David Hilbert
"I have had the pleasure of working closely with Jeff for several years. His exceptional performance and valuable contributions as a recruiter in the life science industry make him one of the top recruiting professionals I have ever worked with."
-Heather Mudrick
"Jeff reached out to me thinking that I was a good fit for the job I now have. He was spot on! More than a year later, I still think that it is a great fit, and I never would have applied for this position had he not contacted me. He was fantastic throughout the process and kept me well informed. I would highly recommend him if you're looking for a needle in a haystack."
-Allison Sharrow
"Jeff's eagerness to ensure clients meet their goals as quickly as possible truly sets him apart. He consistently demonstrated a deep understanding of the recruitment process and provided invaluable support throughout. I highly recommend Jeff to anyone seeking a dedicated and effective recruiter."
- Sujoy Lahiri
"Jeff worked with my company to recruit key management leaders. He assertively found great candidates that eventually got recruited. His timing, knowledge and transparency through the process made the successful outcome possible. I recommend him 100%!"
-Lizamar Velez
"Jeff helped place me in my current position and he was an absolute pleasure to work with. He communicated regularly, answered all of my questions, and found the perfect role for me. I highly recommend him to any candidates seeking a new job or a role change, and to businesses looking for the best talent.
- Samantha Paro
"Jeff was amazing to work with and helped me navigate the intricacies of stepping from academia to biotech. Honest and clear communication all the way though."
-Brandon Ware
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