Senior Chemical Process Engineers Location: Aberdeen (City Centre) – Hybrid (minimum 3 days onsite) Employment Type: Contract Sector: Oil & Gas / Refining / EPC Our client is a leading Aberdeen‑based EPC organisation holding long‑term contracts with major owner/operators across upstream oil & gas, downstream refining, and chemical processing. With a strong portfolio spanning FEED, detailed design, operations, and maintenance, they are expanding their process engineering capability within their Aberdeen design office. We are seeking Senior and Principal Chemical Process Engineers to support a variety of ongoing and upcoming engineering assignments. Role Overview You will work as part of a multidisciplinary engineering team, delivering high‑quality process engineering support across brownfield modifications, optimisation studies, and operational support. Typical responsibilities include: Key Responsibilities • Performing detailed process calculations and engineering analyses • Developing and running process simulations (HYSYS, PRO/II, UniSim, FlareNet, PipeNET or equivalent) • Supporting flow assurance studies • Preparing and updating process datasheets, line lists, P&IDs, PFDs, and Hazardous Area Classification drawings • Producing and maintaining Alarm & Trip Schedules, Cause & Effect diagrams, and control/operating philosophies • Developing and updati...