Pinnacle are recruiting for a Principal Design Engineer, who are Main Contractor, based out of Watford. The work will be on Temporary Works, specifically on Scaffolding. Duties: * Lead the design and engineering phases of both permanent and temporary works, with a key focus on scaffolding, access platforms, edge protection, and associated temporary structures. * Develop and review engineering designs, drawings, and specifications for scaffold systems and access solutions in compliance with TG20, SG4, and other relevant standards. * Collaborate with multidisciplinary teams including site teams, architects, structural engineers, and specialist subcontractors to ensure scaffold designs meet operational and safety requirements. * Provide technical guidance, support, and mentorship to junior engineers and scaffold coordinators. * Conduct regular site visits and inspections to validate scaffold installations, assess compliance, and resolve design or safety issues. * Participate in temporary works coordination meetings, risk assessments, and constructibility reviews. * Ensure scaffold designs integrate seamlessly into overall project delivery plans and comply with CDM regulations and temporary works procedures. Experience Looking for someone with experience as a Lead Design Engineer within Temporary works and ideally within Scaffolding