Associate Engineer​/Scientist, Process & Product Transfer

Spear Bio, founded in 2021, is a well-funded and rapidly growing biotech start-up headquartered in Woburn, Massachusetts. Our proprietary technology,
Successive Proximity Extension Amplification Reaction (SPEAR), is anovel wash-free immunoassay platform, offering unprecedented sensitivity. We are dedicated to revolutionizing early disease diagnosis and monitoring by providing scalable, ultrasensitive solutions that deliver unparalleled accuracy in measuring low-abundant biomarkers, enabling clinicians and researchers to improve patient outcomes and advance global health.

Spear Bio is seeking a dedicated and experienced Associate Engineer/Scientist, Process & Product Transfer to join our Product Transfer team. This role will support the transfer of new products from Assay Development to Manufacturing prior to commercialization, with responsibility for design transfer activities, process documentation, scaled reagent builds, and cross-functional execution. The ideal candidate will bring hands‑on experience in immunoassay development or manufacturing within the diagnostics industry, along with a strong understanding of regulated product development and manufacturing practices.

-Product Transfer

• Lead new product introduction (NPI) design transfer activities and ensure all required deliverables are completed in alignment with Product Development Process requirements.

• Develop specifications and acceptance criteria for raw materials or in-process materials to ensure product quality.

• Translate assay designs into manufacturing work instructions and in-process test instructions that can be easily understood by manufacturing operators.

• Build assay reagents at scale during feasibility and design verification phases while ensuring batch records are completed in accordance with cGMP requirements.

• Plan and execute process verification experiments to demonstrate the robustness and reproducibility of assays being transferred.

• Ensure material transactions are completed in a timely manner to maintain accurate inventory control.

-Compliance and Continuous Improvement

• Drive lean manufacturing, process improvement, and supply chain initiatives to improve cost of goods, efficiency, yield, and quality.

• Lead investigations during design transfer and provide resolutions for product and process issues.

• Develop electronic records for manufacturing work instructions and create data analysis templates to improve efficiency and reduce errors.

• Maintain detailed records of manufactured materials during the transfer process and complete batch records following cGMP requirements.

• Review executed batch records and work with QA to address any quality issues prior to release (deviation, NCMR, CAPA, change control).

• Ensure all process documentation is accurate, complete, and compliant with regulatory standards (e.g., FDA, ISO).

• Support regulatory submissions, audits, and inspections as required.

• Bachelor’s or Master's degree in Bioengineering, Chemical Engineering, Biochemical Engineering, Chemistry, Biochemistry, or a related field.

• If Bachelor’s degree, must also have 3+ years of relevant industry experience (see below). If Master’s degree, must also have 1+ years of relevant industry experience (see below).

• Relevant experience includes product or technology transfer, IVD or RUO diagnostic assay manufacturing, or manufacturing sciences in other regulated industry.

• Experience in product or technology transfer within the diagnostics industry under cGMP requirements to support product launches.

• Experience with IVD or RUO diagnostic assay kit manufacturing.

• Experience with process validation, statistical analysis, and continuous…