My core responsibilities include: • Developing and optimizing BFDs, PFDs, and P&IDs to ensure efficient process flow and system integration. • Performing detailed heat and mass balance calculations to support accurate process simulations and design decisions. • Conducting line sizing, and designing critical equipment such as separators, distillation columns, and heat exchangers to meet performance and safety standards. • Leading process simulations using Aspen HYSYS and Aspen Plus to analyse and optimize system behaviour for improved operational efficiency. • Executing PSV sizing and adequacy checks to ensure the safety and reliability of the system under varying conditions. • Managing tank sizing and conducting adequacy checks to confirm optimal storage and operational capacity. • Performing depressurization calculations to maintain system integrity and prevent overpressure situations.