Mechanical Design Engineer – High-Integrity Moving Structures Sheffield Hybrid working available | Flexible start and finish times | 25 days holiday plus bank holidays | Pension scheme This is hands-on mechanical design work on equipment with real scale and real demands placed on it. You’ll be designing special purpose machinery and large moving structures used in sectors such as nuclear, aerospace and defence, where reliability and engineering integrity are critical. You will be part of a team that designs bespoke systems that move, lift or handle significant loads. The work is varied, practical and bespoke each time. What you’ll be doing * Taking mechanical design responsibility from concept through to commissioning * Producing clear 3D models and 2D drawings for assemblies and components * Selecting bearings, actuators, drives and structural elements to suit duty and environment * Carrying out engineering calculations to support design decisions (stress, load paths, fatigue) * Balancing bespoke design with intelligent use of standard components for cost and lead time * Preparing supporting documentation including risk assessments and compliance files What you’ll bring * Mechanical design experience in handling equipment or large assemblies * Confident CAD ability (SolidWorks or similar), with good understanding of tolerancing and manufacturability * Appreciation of load paths and mechanical integrity * A practical mindset and the ability to prioritise effectively across multiple projects * Clear communication and a collaborative approach * Exposure to FEA or fatigue assessment Useful but not essential * Background in nuclear, defence, aerospace or other regulated sectors This position is being managed by Connected Search, recruitment partner to engineering and advanced manufacturing organisations across the UK