Title: Sr. Research Associate Duration: 9+ Months Location: Oceanside, CA 92056 Description The employer is seeking a Sr. Research Associate I with hands-on experience in protein purification process development and process characterization . This role supports Process Development activities and contributes to biologics development projects in a collaborative, laboratory-based environment. Essential Duties and Job Functions Plan and execute assigned on-site experiments in support of Process Development activities and project goals. Select appropriate experimental methods and techniques based on project requirements. Analyze and interpret experimental data, evaluate data quality, and identify anomalous results. Recommend alternative approaches, research new methods and techniques, and proactively consult senior team members to resolve technical challenges. Participate in group meetings and present experimental results, data interpretation, and conclusions. Demonstrate strong verbal communication and interpersonal skills, including the ability to clearly explain experimental processes and outcomes. Work collaboratively with a team-oriented, problem-solving mindset. Consistently follow safety practices; ability to work with highly potent compounds upon appropriate training. Knowledge, Experience, and Skills Bachelor’s or higher degree in Chemical Engineering, Biochemical Engineering, Biochemistry, Chemistry , or a related scientific discipline. Prior experience in biologics purification , with emphasis on conjugation, tangential flow filtration (UF/DF), and filtration . Experience with analytical techniques such as SEC/HPLC, capillary electrophoresis (reducing/non-reducing), and HCP testing is beneficial but not required. Knowledge of cGMPs, technology transfer, and bioprocess scale-up . Strong technical writing skills. Ability to work effectively in cross-functional and multidisciplinary teams . Working knowledge of downstream process development , including centrifugation, normal and tangential flow filtration, chromatography operations, and virus clearance, with hands-on experience in several areas expected. Experience with multiple biologic modalities (e.g., monoclonal antibodies, bispecifics, fusion proteins, antibody-drug conjugates, virus particles ) and expression systems (microbial and mammalian) is a plus. Ability to design and execute purification experiments with increasing independence to support process definition, optimization, and characterization. Collaborate with Technical Operations during technology transfer from process development to GMP manufacturing, including on-floor support, troubleshooting, and identification of process and equipment improvements. Contribute to regulatory filings, process validation, and characterization reports . Self-motivated, well-organized, and intellectually curious, with interest in scientific literature and conferences. Basic Qualifications BS degree in a relevant scientific discipline with 2+ years of relevant experience, OR MS degree in a relevant scientific discipline with 0+ years of relevant experience Applicant Notices & Disclaimers For information on benefits, equal opportunity employment, and location-specific applicant notices, click here At SPECTRAFORCE, we are committed to maintaining a workplace that ensures fair compensation and wage transparency in adherence with all applicable state and local laws. This position’s starting pay is: $ 48.92/hr.