Demo

Sr Research Associate

ATR International
Oceanside, CA Contractor
POSTED ON 5/3/2026
AVAILABLE BEFORE 5/31/2026

ATR International is hiring a Sr Research Associate for a major client!


Essential Duties and Job Functions:

  • Plan and execute assigned experiments on-site that support Process Development activities and project goals.
  • Develop skills in data analysis and interpreting experiment outcomes including the ability to evaluate data quality and recognize anomalous results.
  • Recommend alternatives, research new methods and techniques and proactively seek out senior personnel to discuss potential solutions to problems.
  • Participate in group meetings and present results, data interpretation and conclusions.
  • Demonstrate strong verbal communication and interpersonal skills including the ability to explain processes used to achieve results of assigned tasks.


Knowledge, Experience and Skills:

  • Preferred degree in Chemical/Biochemical Engineering, Biochemistry, Chemistry or a related
  • Prior experience in biologics purification, with an emphasis on conjugation, tangential flow filtration (UF/DF), and filtration
  • Prior experience in analytical operations: SEC/HPLC, CE (R/NR), HCP testing is beneficial
  • Knowledge of cGMPs, technology transfer, and scaling up bioprocesses.
  • Working understanding of downstream process development including centrifugation, normal and tangential flow filtration, chromatography operations, and virus clearance
  • Experience with multiple modalities (mAbs, bispecifics, fusion and antibody drug conjugates, virus particles) produced in microbial and mammalian expression systems is a plus


Hourly Rate Range: $66.00 - $73.00

Benefits

Full-time employees (working an average of 30 hours or more) are eligible to select from different benefits packages. Packages may include medical, dental, and vision benefits, a 401(k) retirement savings plan with employer match (available after 1 year of employment), commuter benefits, employee discount and referral programs, and life and supplemental income insurance. Paid sick leave is provided in accordance with applicable state and local laws.


Compensation

Final offer amounts, within the base pay set forth above, are determined by factors including your relevant skills, education, and experience, as well as the benefits package you select.


Work Authorization

ATR International, Inc. cannot sponsor work visas (H-1B, F-1 STEM OPT with I-983, or similar). Candidates must have valid U.S. work authorization.


ATR International, Inc. is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees.

Salary : $66 - $73

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