BioProcess Engineer II, Upstream

Company Overview ImmunityBio is a vertically integrated commercial stage biotechnology company developing next-generation therapies that bolster the natural immune system to defeat cancers and infectious diseases. The Company's range of immunotherapy and cell therapy platforms, alone and together, act to drive and sustain an immune response with the goal of creating durable and safe protection against disease. Designated an FDA Breakthrough Therapy, ANKTIVA is the first FDA-approved immunotherapy for non-muscle invasive bladder cancer CIS that activates NK cells, T cells, and memory T cells for a long-duration response. The Company is applying its science and platforms to treating cancers, including the development of potential cancer vaccines, as well as developing immunotherapies and cell therapies that we believe sharply reduce or eliminate the need for standard high-dose chemotherapy. These platforms and their associated product candidates are designed to be more effective, accessible, and easily administered than current standards of care in oncology and infectious diseases. Why ImmunityBio? ***** ImmunityBio is developing cutting-edge technology with the goal to transform the lives of patients with cancer and develop next-generation therapies and vaccines that complement, harness and amplify the immune system to defeat cancers and infectious diseases. ***** Opportunity to join a publicly traded biopharmaceutical company with headquarters in Southern California. ***** Work with a collaborative team with the ability to work across different areas of the company. ***** Ability to join a growing company with professional development opportunities. Position Summary The BioProcess Engineer II, Upstream role is responsible for process development, engineering, and technical support of upstream viral vector manufacturing for the Company's gene therapy programs. This position serves as a technical expert for cell culture and bioreactor unit operations, from cell bank thaw and seed train expansion through transfection/infection, vector production, and harvest. The individual will design and execute process development experiments, lead scale-up and scale-down activities, and use a data-driven approach to troubleshoot manufacturing issues, identify root causes, and implement improvements, working cross-functionally to deliver a robust and scalable clinical production process. Essential Functions - Serve as the process owner/subject matter expert for upstream viral vector unit operations, including cell bank thaw, seed train expansion, cell culture in adherent and suspension formats, transient transfection or infection, vector production, and harvest. - Design and execute experiments (including DOE) to develop, optimize, and characterize upstream processes for viral vectors with the goal of improving cell growth, productivity, vector titer and quality. - Lead scale-up of upstream processes from bench scale to pilot and cGMP manufacturing scale (e.g. shake flasks, benchtop, and single-use stirred-tank bioreactors up to 200L), applying engineering scale-up principles such as P/V, tip speed, kLa, mixing time and gas sparging strategy. - Develop, qualify, and maintain representative scale-down models to support process troubleshooting, process characterization, and robustness studies. - Operate and support bioreactor systems including set-up, inoculation, monitoring, and control of critical process parameters (pH, DO, temperature, agitation, feed, gassing).Participate in the collection, trending, and interpretation of data from bench scale experiments and large-scale manufacturing, and aid in organization of data for statistical process control. - Provide technical support during tech transfer and scale-up to internal cGMP manufacturing as well as external CDMO partners. - Trouble shoot, perform root cause analysis, and recommend corrective and preventive actions for the reso ution of deviations, investigations, and process issues. - Contribute to manufacturing operations, including collaboration with facilities, quality, and manufacturing groups for implementation of the production process in cGMP clinical manufacturing facilities. This can include equipment FAT/SAT, commissioning and qualification, defining user requirements, and support of validation from a process perspective. - Provide equipment engineering support for upstream processes with a focus on single-use technologies, including support in the creation of custom single-use consumables from design through testing to cGMP operations. - Draft and review documents including batch records, Standard Operating Procedures (SOPs), qualification protocols, development and tech transfer reports, and investigation reports. - Meticulously maintain experimental records with detailed observations and maintain laboratory equipment. - Train Manufacturing personnel and less experienced team members in equipment and process operations. - Perform ad-hoc and cross-functional laboratory work and/or projects assigned to support business needs and provide developmental opportunities. Education & Experience - Bachelor's degree in Chemical Engineering, Bioengineering, Biotechnology, or related fields with 5+ years of experience in biopharmaceutical process development and/or cGMP manufacturing operations, including direct hands-on experience in downstream processing required; or - Master's degree in Chemical Engineering, Bioengineering, Biotechnology, or related fields with 3+ years of experience in biopharmaceutical process development and/or cGMP manufacturing operations, including direct hands-on experience in downstream processing; MS preferred. - Hands-on experience with viral vector purification for gene therapy applications required. - Industrial/cGMP experience in upstream cell culture and bioreactor operation required. - Demonstrated experience with process scale-up and scale-down model development required. - Cross training across the entire process of viral vector manufacturing (upstream, harvest, downstream purification, and formulation/fill) is a plus. Knowledge, Skills, & Abilities - Working knowledge of gene therapy principles, including biology and critical quality attributes of viral vector products (vector genome titer, infectious titer, potency, and product- and process-related impurities). - Strong expertise in mammalian cell culture for viral vector production, including media and feed optimization. - Knowledge of cell banking operations and seed train expansion - Extensive hands-on experience with upstream equipment such as incubators, biosafety cabinets, cell counters and metabolite analyzers, and single-use stirred-tank bioreactors. - Strong understanding of bioreactor engineering and scale-up/scale-down principles (mass transfer, mixing, shear, power input, gassing strategy) and qualification of scale-down models. - Familiarity with upstream harvest operations (e.g. cell lysis, nuclease treatment) and in-process analytics for viral vectors. - Good aseptic technique and strong knowledge of cGMP aseptic manufacturing. - Must have strong authorship and be able to critically review technical GMP documents, interpret results and generate technical conclusions. - Understanding of relevant regulations and regulatory guidance associated with cGMP and gene therapy products, such as 21 CFR 210-211, FDA CBER guidance for human gene therapy products (CMC), ICH Q5A/Q8/Q9/Q11 and USP. - Ability to build strong relationships with Quality and Manufacturing to ensure a compliant manufacturing environment and work collaboratively with other team members to support the transfer of processes from Process Development to Manufacturing. - Good computer skills, including MS Office; familiarity with JMP or similar statistical software. - Ability to adapt to rapidly chang