Design jobs in Pakistan

Senior Mechanical Design Engineer (Test Rigs) – Submarines. Full time, Derby/Hybrid. The role supports the design of new multi-million-pound test rigs and modifications to existing rigs at the Centre of Excellence for Engineering Test Laboratory, Raynesway, Derby. The business focuses on propulsion system design and development for the Royal Navy's nuclear submarine fleet, managing plant design, safety, manufacture, performance and through-life support.

Rolls-Royce seeks a capable engineer to undertake test rig design within the Design & Execution team in the Submarines business in Derby. The environment emphasizes care, belonging, and opportunity for career growth.

We offer an inclusive, innovative culture with development opportunities, a competitive salary and exceptional benefits, including bonus, employee support, and discounts. Hybdrid working is available with a locally managed, flexible arrangement. On-site collaboration is expected approximately three days per week.

• Generating requirements, scoping work, and planning tasks in conjunction with stakeholders.
• Applying first principles to mechanical designs and using fluid flow and thermal-hydraulic theory to justify design decisions around system layout, component selection, sizing, manufacturability and fit-for-function.
• Integrating design with health and safety principles and considerations from other disciplines into credible technical solutions and arguments.
• Collaborating with multi-discipline teams, internal resources, external design partners and equipment suppliers to be the design intent owner for a range of rigs delivering test data for R&T, verification and validation, component qualification and through-life performance requirements.

• Experience in a heavily regulated industry (e.g., Aerospace, Chemical, Pharmaceutical, Energy, Water or Nuclear).
• Experience specifying, designing, justifying, building and commissioning complex mechanical and fluid systems.
• Track record delivering solutions to time, cost and quality against customer requirements.
• Sound knowledge of engineering principles, process safety and applicable codes and standards.
• Experience producing detailed component and assembly drawings to a high standard including GD&T.
• Experience using Unigraphics NX and Teamcenter is highly desirable.
• Experience operating complex fluid/chemical or mechanical systems is desirable.
• Understanding of design processes and safety assessment tools (e.g., HAZOPs/FMEAs).
• Degree (or equivalent) in mechanical engineering or another design engineering discipline.

To work for the Rolls-Royce Submarines business, the individual must hold a Security Check clearance. Rolls-Royce will support the application for Security Clearance if not already in place. Roles require eligibility to work in the UK or MoD-approved dual cases. We are an equal opportunities employer and promote a diverse, inclusive workforce that values different perspectives.

Posting Date: 03 Sept 2025; Posting End Date: 10 Sept 2025. Location: Derby, ENG - DE23 8NX. Job Category: Mechanical Systems.