Are you an experienced Senior Process Engineer looking to work on cutting-edge liquefied gas projects with a company that values innovation, flexibility, and professional development? We are exclusively recruiting for a permanent Senior Process Engineer on behalf of Whessoe Engineering Ltd, a world-renowned leader in engineering, procurement, and construction (EPC) services, with over 200 years of excellence in the industry, based in Darlington. Why join Whessoe? Whessoe is a multidisciplinary engineering firm with a strong reputation for delivering complex projects in the hydrocarbon, petrochemical, and energy sectors. As part of the Samsung C&T family, they offer their engineers the opportunity to work on high-profile, global projects, providing world-class solutions in process engineering. Flexible working: choose between a 40 or 37-hour work week, adjusting your hours around core office times (Mon-Thurs: 10am-3pm, Fri: 9am-1pm) to suit your lifestyle Hybrid working: after a familiarisation period, employees can work 2 days per week from home Career development: work on complex, multi-disciplinary projects where you will take the lead on process design, simulation, and safety reviews, gaining invaluable experience in the field Strong company benefits including 25 days holiday (rising to 28), a holiday purchase scheme, 10% employer pension contributions, free secure parking, life insurance (4x salary), and access to wellbeing initiatives such as regular yoga classes The role – shape the future of liquefied gas projects As a Senior Process Engineer, you will play a pivotal role in the design, simulation, and safety analysis of process systems for liquefied gas projects. You will be responsible for ensuring process designs are safe, efficient, and compliant with industry standards, while also mentoring junior engineers and overseeing commissioning operations. Key responsibilities: Develop heat and material balances using Aspen HYSYS Lead process design and control philosophies for assigned projects Supervise the preparation of PFDs, P&IDs, and process data sheets (SmartPlant P&ID) Conduct process equipment sizing (pumps, vessels, heat exchangers) Participate in HAZOP, SIL, and other safety reviews Oversee commissioning operations for cryogenic storage tanks What we’re looking for: Degree in Chemical or Process Engineering (IChemE accredited) Extensive experience in oil and gas, petrochemicals, or cryogenic storage industries Strong process simulation skills (Aspen Hysys) Working knowledge of SmartPlant P&ID Experience leading smaller projects and mentoring junior engineers This is a fantastic opportunity to join a forward-thinking company that truly values its employees and offers a flexible, supportive, and engaging working environment. If you're a proactive Senior Process Engineer seeking a challenging and rewarding career move, we’d love to hear from you. Apply today and become part of Whessoe’s legacy of engineering excellence