Are you an experienced Senior Mechanical 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 Mechanical Engineer on behalf of Whessoe Engineering Ltd, with over 200 years of excellence in the industry, based in Darlington.
  
The role – drive engineering excellence in global energy infrastructure
As a Senior Mechanical Engineer, you will play a key role in the mechanical design and analysis of tanks, pressure vessels, and heat exchangers for large-scale oil, gas, and LNG projects.

Key responsibilities:

• Deliver mechanical design of ambient and cryogenic storage tanks, pressure vessels, and heat exchangers
• Conduct engineering calculations, stress assessments, and finite element analysis (ANSYS, STAAD, Caesar II)
• Prepare and check technical documents including design reports, specifications, and datasheets
• Apply design codes such as API 620/650, ASME VIII, and Eurocodes
• Lead and mentor other engineers and interface with design draughting teams
• Support tender development, including labour-hour estimation and technical input
• Ensure compliance with client requirements, project schedules, and internal quality procedures

• Degree-qualified in Mechanical Engineering (BEng or MEng)
• Chartered Engineer status (or working towards) is desirable
• Strong experience in mechanical design within oil & gas, LNG, or petrochemical projects
• Proficient in design and analysis of storage tanks, vessels, and thermal equipment
• Working knowledge of FEA and stress analysis tools (ANSYS, STAAD, Caesar II)
• Familiar with AutoCAD, and ideally 3D tools such as SmartPlant 3D, PDMS, or Inventor
• Experience applying major design codes (API, ASME, Eurocodes)