NEW JOB OPENING
SCIENTIST
IN San Diego, CA, USA!

 

Date Posted: 03/30/2026
Hiring Organization: Rose International
Position Number: 499093
Industry: Biotech/Healthcare
Job Title: Scientist
Job Location: San Diego, CA, USA, 92121
Work Model: Onsite
Employment Type: Temporary
FT/PT: Full-Time
Estimated Duration (In months): 8
Min Hourly Rate($): 44.00
Max Hourly Rate($): 49.00
Must Have Skills/Attributes: Screening, Testing
Experience Desired: 2 years of hands-on wet lab experience (1-2 yrs); Mastery of aseptic technique and experience in isolating primary T cells from PBMCs is essential (2-3 yrs)
Required Minimum Education: Bachelor’s Degree
Preferred Education: Master’s Degree

**C2C is not available**

 

Job Description


Education

Bachelor’s or Master’s degree in Immunology, Molecular Biology, Bioengineering, or a related biological science



Required Skills

2 years of hands-on wet lab experience, preferably within an industry setting.

Mastery of aseptic technique and experience in isolating primary T cells from PBMCs is essential.



Description

We are seeking a highly motivated and detail-oriented Contract Wet Lab Scientist to join our Discovery Biology team.

This role is central to a high-priority binder screening campaign, where you will be responsible for executing the bench-level assays required to identify and validate novel therapeutic candidates for T-cell-based therapies.



Role Overview

The successful candidate will serve as a core operator within our screening funnel, focusing on the transition from binder discovery to functional validation.

This is a contract position (typically 6–12 months) designed for a scientist who thrives at the bench and excels in the fast-paced environment of a drug discovery campaign.

The primary objective is to characterize the potency, specificity, and safety of candidate binders—such as scFvs or VHHs—within the context of engineered T-cell responses.



Key Responsibilities

A significant portion of this role involves the non-viral engineering of T cells.

You will be responsible for delivering genetic material (such as mRNA or transposon-based DNA systems) into primary human T cells using advanced electroporation or nucleofection platforms.

Following transfection, you will monitor cell viability and recovery, ensuring high-efficiency expression of synthetic receptors before proceeding to functional testing.

Beyond engineering, you will execute high-throughput screening assays to assess binder affinity and functionality.

This includes maintaining and expanding primary human T cells and Jurkat cell lines using impeccable aseptic techniques.

You will perform multi-color flow cytometry (FACS) to evaluate surface expression levels and phenotypic markers, using software like FlowJo to analyze and interpret the resulting data.

Functional characterization is a critical component of this campaign.

You will be expected to run a variety of assays to measure T-cell activation, including cytotoxicity assays (using IncuCyte live-cell imaging or LDH release) and cytokine profiling via ELISA, MSD, or Luminex.

You will also track T-cell proliferation using dyes like CFSE. All experimental procedures, including precise protocol deviations and raw data, must be recorded meticulously in an Electronic Lab Notebook (ELN) to ensure data integrity for regulatory filings.

Expertise in flow cytometry acquisition and analysis is a non-negotiable requirement for this role.

Preference will be given to candidates who have direct experience with non-viral transfection methods and those who are comfortable using liquid-handling robotics to scale screening efforts.

Strong communication skills are vital, as you will be expected to present clear, data-driven updates during weekly campaign sprint meetings



  • **Only those lawfully authorized to work in the designated country associated with the position will be considered.**

  • **Please note that all Position start dates and duration are estimates and may be reduced or lengthened based upon a client’s business needs and requirements.**


 

Benefits:
For information and details on employment benefits offered with this position, please visit here. Should you have any questions/concerns, please contact our HR Department via our secure website.

California Pay Equity:
For information and details on pay equity laws in California, please visit the State of California Department of Industrial Relations' website here.

Rose International is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, age, sex, sexual orientation, gender (expression or identity), national origin, arrest and conviction records, disability, veteran status or any other characteristic protected by law. Positions located in San Francisco and Los Angeles, California will be administered in accordance with their respective Fair Chance Ordinances.

If you need assistance in completing this application, or during any phase of the application, interview, hiring, or employment process, whether due to a disability or otherwise, please contact our HR Department.

Rose International has an official agreement (ID #132522), effective June 30, 2008, with the U.S. Department of Homeland Security, U.S. Citizenship and Immigration Services, Employment Verification Program (E-Verify). (Posting required by OCGA 13/10-91.).

 

Apply Now

 

About Rose

  • Founded in 1993
  • Office Locations Across the U.S.
  • 150+ Clients: Corporations and Government Agencies
  • Employee Oriented Company
  • Challenging Assignments Across the U.S.
  • Continuous Professional Development

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