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Building the Teams Behind Breakthroughs
Secure transformative leaders who shape trajectory and drive results.
Embedded support for biotech companies scaling without internal TA infrastructure.
Jeff launched 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.

Industry expertise built over 10k+ conversations
Since 2020, 97% of placed candidates have remained for at least 1 year.
Trusted partner to venture-backed startups and established life science organizations.

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

Nexagen Search supports biotech companies through flexible partnerships designed around each company's stage, hiring needs, and internal resources.
For critical leadership and senior-level roles where the right hire can shape the direction of the company, we run targeted search processes that identify, engage, assess, and deliver highly qualified leaders.
For companies that need ongoing recruiting support but are not ready to build a full internal talent acquisition function, we provide embedded recruiting support on a fractional basis.
Jeff Caskey launched Nexagen Search in 2023 with a simple mission: create a better hiring solution for biotech companies that need to scale. After spending more than a decade in the biotechnology industry, Jeff noticed that growth-stage companies typically have two options when it comes to talent acquisition: build an internal recruiting function or rely heavily on external search firms.
Both strategies can be effective, but each comes with tradeoffs. Building an internal Talent Acquisition team requires a significant investment in salary, benefits, recruiting technology, and infrastructure—often before hiring demand is consistent enough to justify a full-time team. Traditional search firms, on the other hand, excel at filling individual positions but are not designed to provide day-to-day recruiting leadership, hiring strategy, or long-term talent planning.
Fractional Talent Acquisition was created to bridge the gap.
Whether you've closed a financing round, expanded your pipeline, or are entering a new phase of growth, we help companies scale hiring quickly while maintaining quality.
Many early-stage companies have talented hiring managers but no consistent recruiting infrastructure. We build the foundation that supports long-term growth.
Need additional recruiting support without increasing permanent headcount? We integrate directly with your leadership team to provide extra bandwidth.
Some positions simply require a different level of search expertise. We lead searches for scientific leaders, executives, technical specialists, and other critical hires that have a significant impact on your company's future.
Launching a new therapeutic area, platform, or department? We with develop hiring plans, define organizational structure, identify priority roles, and recruit the team that will drive future success.
Many companies eventually reach the point where hiring volume supports an internal Talent Acquisition function. We help make that transition successful by building recruiting processes, documenting best practices, implementing systems, and training your future internal team.
Fractional Talent Acquisition provides your company with an experienced biotech recruiting leader on a part-time basis. Rather than hiring a full-time Head of Talent Acquisition, you gain strategic recruiting expertise and day-to-day execution without the long-term commitment of a FTE.
Our engagements are structured as monthly retainers based on the level of support your organization requires. This provides predictable costs and the flexibility to scale your recruiting efforts as hiring needs evolve.
No. Engagements are designed to be flexible and can scale up or down as your hiring needs change. Many clients begin during periods of rapid growth and adjust their level of support as the organization matures.
Nexagen Search serves clients across the United States. We have experience working with clients in a variety of geographic locations and industries.
Our model is designed primarily for venture-backed startups and growth-stage biotechnology companies that are actively building teams.
We have experience recruiting across the entire organizational spectrum—from entry-level research associates and scientists to executive leadership teams. Whether you're making your first scientific hire or building out your C-suite, we tailor our recruiting strategy to the level, complexity, and business objectives of each search.
The number of active roles depends on your engagement level. We offer multiple service tiers designed to support companies hiring anywhere from a handful of positions per year to larger organizational buildouts.
No. While our expertise is rooted in scientific recruiting, we support hiring across research, development, CMC, clinical, regulatory, quality, manufacturing, technical operations, corporate functions, and executive leadership.
Absolutely. We frequently partner with HR, People Operations, executives, and hiring managers to complement existing resources and improve recruiting capacity without disrupting internal workflows.
Both. We help organizations build hiring plans, develop interview processes, improve employer branding, implement recruiting technology, establish metrics, and execute searches from sourcing through onboarding.
Yes. We can help evaluate, implement, optimize, and manage applicant tracking systems (ATS), ensuring your recruiting process is organized, scalable, and data-driven. You can also access our platform if you don't have or need an ATS.
Most engagements can begin within one to two weeks. We start with a discovery session to understand your organization, hiring priorities, and immediate talent needs before integrating into your recruiting process.
In many cases, yes. We can manage the majority of your hiring internally through the engagement. For highly specialized or confidential executive searches, we can also advise on when an external retained search may still be the right approach.
"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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