An Associate Scientist III, Quality Control, IPC Testing performs in-process control (IPC) and release testing supporting GMP manufacture of oligonucleotide antisense strand (AS), sense strand (SS), and duplex drug substance (DS), and/or stability sample testing activities for new drug substances and drug products. This role executes analytical testing (e.g., LCMS, HPLC, UV, Karl Fischer, pH, bioburden/endotoxin) during second shift operations, ensuring timely, accurate results are delivered within sample hold times to support real-time batch disposition decisions.