Position: Senior Mechanical Design Engineer\n\nLocation: Sheffield\n\nSalary: £50-65K, commensurate with experience\n\nThe Senior Mechanical Engineer leads the delivery of innovative and compliant mechanical engineering solutions across our client's complex and high-value projects. This senior position provides technical leadership and design authority across the full project lifecycle-from concept development through to commissioning-ensuring all mechanical designs meet exacting standards for safety, quality, functionality, and cost. \n\nAs a key technical expert, the Senior Mechanical Design Engineer plays a strategic role in driving engineering excellence, approving critical design deliverables, and supporting commercial decision-making.

The role combines technical depth with commercial awareness, requiring the ability to manage design budgets, influence client outcomes, and contribute to business performance. \n\nKey Responsibilities \n\nTechnical Leadership\nEngineering Design & Delivery \nCommercial & Budget Responsibility \nCross-Functional Collaboration \nCompliance & Validation \nMentorship & Development Skills & Experience Required \n\nSignificant experience in mechanical design engineering within a technically demanding, project-led environment.\nProven track record of delivering complex engineering projects from concept to commissioning.\nStrong knowledge of mechanical principles, materials, manufacturing methods, and design for assembly.\nHigh proficiency in 3D CAD (e.g., SolidWorks, Inventor) and 2D drawing production to industry standards.\nExperience approving technical documentation for compliance and client submission.\nCommercial awareness with the ability to manage budgets, assess cost implications, and contribute to tendering.\nSkilled in producing and reviewing engineering calculations and substantiation reports.\nConfident communicator with strong interpersonal skills, capable of working across departments and with clients.\nOrganised, detail-oriented, and capable of managing multiple workstreams and priorities.Desirable Qualifications and Experience \n\nDegree (or equivalent) in Mechanical Engineering or a related discipline.\nChartered Engineer (CEng) or Incorporated Engineer (IEng), or working towards professional registration.\nExperience in sectors such as Defence, Nuclear, Aerospace, or Infrastructure.\nFamiliarity with compliance frameworks (e.g., CE marking, UKCA, Machinery Directive).\nUnderstanding of automation, moving machinery, and integrated mechanical-electrical systems.\nExperience in the design of structures and adherence to Eurocodes.\nExperience in Finite Element Analysis and associated softwares (e.g. ANSYS)Job Benefits \n\nFlexible Start and Finish Times: Shape your day with flexible start and finish times around our core working hours.\nPension Scheme: We operate a salary sacrifice pension scheme and reinvest our savings directly back into your pension pot.\nAnnual Leave: New starters receive 25 days of holiday, plus statutory bank holidays.\nNeed a Few More Days?

Our holiday purchase scheme lets you buy up to 3 additional days of holiday each year.\nLong Service Awards: After 5 years with us, your holiday entitlement increases by 1 day. After 10 years, it increases by another day.\nEmployee Referral Scheme: Refer suitable candidates who align with our values, and you'll be rewarded for helping us build a great team. \n\nAbout Us\n\nWe are dedicated to fostering a diverse and inclusive community.

In line with our and policy, we welcome applications from all qualified individuals, regardless of , gender, ethnicity, , or . As a Confident Employer, and part of the Nicholas Associates Group, we are committed to supporting candidates with disabilities, and we're happy to discuss flexible working options.\n\nWe are committed to protecting the privacy of all our candidates and clients. If you choose to apply, your information will be processed in accordance with the Nicholas Associates Group of companies