Scientist - Onsite

South San Francisco, CA Onsite Contract Starts 10/19/2026 Ends 10/18/2027 Share on Job Description Aptask Global Workforce (AGW) is seeking a Scientist for an Onsite position with a Major Biotechnology Company located in South San Francisco, CA. This is a 12+ month contract opportunity. We are seeking a motivated and collaborative contract scientist to join an R&D imaging and image analysis team supporting research programs across multiple therapeutic and functional areas. The successful candidate will be a strong experimentalist with hands-on experience in mammalian cell culture, cellular assay development, and sample preparation. This role will contribute to both core imaging activities and collaborative research projects, including quantitative imaging relevant to the development and characterization of T-cell engagers. Responsibilities: Maintain mammalian cell cultures and prepare cells and samples for imaging experiments Develop, optimize, and execute image-based cellular assays, including co-culture and cell-cell interaction assays Perform fluorescence microscopy and automated imaging experiments Support imaging studies conducted in collaboration with scientists across R&D Develop and apply quantitative image analysis workflows using tools such as Fiji/ImageJ, Imaris, and high-content analysis software Analyze, interpret, document, and communicate experimental results Assist with operation and routine maintenance of automated high-content imaging instrumentation Troubleshoot imaging, assay, and sample-preparation issues Requirements: Doctorate degree OR Master's degree and 2 years of experience OR Bachelor's degree and 4 years of experience in cell biology, immunology, bioengineering, biochemistry, biomedical sciences, or a related discipline Strong hands-on experience with mammalian cell culture and cell-based assays Experience with fluorescence microscopy and quantitative image analysis Experience with immunofluorescence staining, live-cell imaging, or other microscopy sample-preparation techniques Demonstrated ability to troubleshoot cell-based assays Desired skills: Experience with primary cells, immune cells, co-culture assays, or cell-cell interaction assays Experience with high-content imaging platforms such as the Opera Phenix Experience with automated laboratory workflows or robotic plate handling Familiarity with Fiji/ImageJ, Imaris, CellProfiler, Harmony, or related image analysis tools Programming experience in Python, R, or MATLAB Pay range: up to $42.16per hour Only candidates available and ready to work directly as Aptask Global Workforce (AGW) employees will be considered for this position. If you have the described qualifications and are interested in this exciting opportunity, apply today! Aptask Global Workforce (AGW) ApTask Global Workforce (AGW) is a certified Minority and Veteran workforce solutions company. AGW delivers operational, clinical, lab and professional talent with a strong focus on healthcare and life sciences. The company supports clients with reliable staffing, program expertise and a commitment to quality, speed and consistent delivery. Benefits of working with ApTask Global Workforce include: Medical Vision Sick Pay (for applicable states/municipalities) Our team stays close to the process and is here to guide you every step of the way. To learn more, please visit our website ApTask Global Workforce is an Equal Opportunity Employer. Candidates will receive consideration without regard to their race, color, religion, sex, sexual orientation, gender identity, national origin, disability or status as a protected veteran.

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