We are seeking a highly skilled Principal Design Engineer with expertise in temporary works and scaffold design. Based in Watford, you will lead the delivery of safe, compliant, and efficient engineering solutions on major civil infrastructure projects. This is a key role requiring both technical depth and leadership. What you will need Degree in Civil or Structural Engineering (Master’s preferred). Chartered Engineer (CEng) status, or actively working towards it. Proven experience in scaffold and temporary works design, with strong knowledge of TG20:21, SG4:22, BS EN 12811. Proficiency in AutoCAD, Revit, and structural analysis software (e.g. STAAD Pro, Tekla Tedds). Strong understanding of construction sequencing, CDM regulations, and site constraints. What’s in it for you Competitive salary. Car allowance included. Flexible working hours. Hybrid working available. The NRL Group connect global companies with the right people to bring engineering projects to life. Supporting contracting companies with energy transition plans and working with our clients to create a cleaner, greener future. We welcome applications from every walk of life and are committed to diversity within the industries we support, as a certified Inclusive Recruiter and Armed Forces friendly employer. You can ensure you stay safe when job searching online by visiting the JobsAware website