Job Title: Senior Process Engineer - Production Optimisation and Field Development Working Location: London (Hybrid - minimum 3 days office based) Contract Type: Permanent Key Responsibilities: - Support upstream development and optimisation projects - Evaluate process and production improvement opportunities - Deliver process engineering activities from concept through to implementation - Produce and review technical process deliverables and documentation - Support vendor package reviews and contractor deliverables - Work closely with operations teams to improve facility performance - Support debottlenecking and facility optimisation activities - Contribute to project planning, scheduling, and reporting activities - Present technical recommendations and engineering findings to stakeholders - Participate in quarterly overseas assignments supporting operational assets and project activities (all travel and accommodation costs covered) Requirements: - 10+ years'' experience in upstream oil and gas process engineering - Experience supporting production optimisation or brownfield projects - Strong knowledge of oil and gas processing systems and operational facilities - Experience across conceptual studies, FEED, and detailed design phases - Strong process simulation capability (UniSim, Flaresim, or similar) - Comfortable working independently and leading technical scopes - Strong communication and stakeholder engagement capability - Knowledge of international engineering stan