Job Description
We are LOTTE BIOLOGICS ! Delivering Therapies That Enable a Healthier World . A new company, built on 80 years of tradition. We embody our core values of being Inspired by Science , Embracing Diversity , Fostering Talent , and Connecting Lives . Our mission is to be the most trusted partner in the industry, with high standards of quality and continuous innovation, to reliably deliver benefits for patients worldwide. Position Summary The Senior Engineer, ADC Manufacturing is an individual contributor that serves as a technical SME for antibody drug conjugate (ADC) manufacturing processes across clinical and commercial programs. This role provides subject matter expertise in conjugation chemistry, purification, scaleup, and technology transfer. The Senior Engineer drives process robustness, investigates deviations, implements process improvements, and ensures that manufacturing operations comply with cGMP standards. The ideal candidate combines hands-on technical skills with strategic influence across cross-functional teams, will identify best practices and provide technical trainings. Duties & Responsibilities Technical Leadership Serves as the primary technical authority for ADC conjugation, formulation, and purification processes across multiple development stages. Leads technical transfers of ADC processes for First in Human, scale up, late-stage, Validation activities and design of Critical Process Parameter readiness. Supports a high-performing technical team through effective communication and mentoring of junior engineers. Develops and maintains process descriptions, process flow diagrams, and process models. Act as a liaison between Manufacturing and HSE team for the handling of High toxicity compounds and oversees safety of manufacturing activities. Own and improve key unit operations (e.g., TFF, chromatography, conjugation reactions, solvent handling and Buffer Preparations). Collaborate with partners and customers, such as Automation, MSAT, HSE and Facilities to achieve site manufacturing deliverables for manufacturing production. Communicates and work with internal teams and clients to resolve on the floor issues, document revisions for successful process execution. Supports real time-on-the-floor support to manufacturing teams during batch execution as necessary. Lead investigations, root cause analysis, and CAPA development for OOS, OOT, and deviations. Assess process performance trends using statistical tools and identify process improvement opportunities for manufacturing robustness. Serve as SME during audits, including regulatory inspections. Evaluate and implement new technologies, raw materials, equipment, and methods to enhance process performance and safety. Partner with Quality Assurance, Quality Control, Supply Chain, Process Development, and Facilities to support seamless operations. Documentation & Technical Writing Author and review technology transfer documents, equipment fit gap assessments, and batch records. Author and review master batch records (MBRs), SOPs, technical protocols and reports Support Regulatory agency responses for continued regulatory compliance and filing content (IND/IMPDs, BLAs). Provide technical justification for changes using risk-based methodologies (FMEA, QbD principles). Education & Experience Bachelor’s degree in Chemical Engineering, Chemistry, Biology or related field required. Advanced degree (MS/PhD) preferred. 7+ years of experience in biopharmaceutical MSAT, Process Engineering, or Manufacturing Sciences is required; 2–4 years of experience specifically in ADCs or complex bioconjugation processes is strongly preferred. Hands on experience with cGMP clinical or commercial manufacturing. Proven success in working in teams within a matrixed environment. Demonstrated success in with tech transfers, and process scale up. Knowledge, Skills, Abilities Technical Abilities Technical Understanding Of Conjugation chemistries (e.g., maleimide thiol, enzymatic, site specific) Purification technologies (TFF, chromatography) Experience handling highly potency drug linkers, highly potent active pharmaceutical ingredients (HPAPIs) and knowledge of Occupational Health Category (OHC) classifications. cGMP and regulatory expectations Competency with Data analysis tools (e.g., JMP), DOE and multivariate analysis for process performance evaluations. Familiarity of regulatory issues pertai