Mechanical Design Engineer

Help grow a safer, cleaner, healthier future for everyone, every day.

Develop innovative, high‑quality fire detection products that combine performance, manufacturability, regulatory compliance, sustainability, and cost efficiency. Contribute directly to life‑safety technology used globally.

As a Mechanical Design Engineer, you will be responsible for delivering robust mechanical designs for high‑volume safety‑critical products. You will work across the full development lifecycle—from concept, simulation, and prototyping through testing, verification, regulatory approval, and production handover.

• Deliver robust, cost‑optimised mechanical designs on time and within budget.
• Work with Project managers to define implementation plans and deliver against them.
• Ensure all designs comply with quality, manufacturing, and regulatory standards (including UKCA/CE and EN 54).
• Drive innovation in materials, sustainability, and manufacturing processes.

• Check and approve mechanical designs, drawings, and supporting documentation.

• Design high‑volume plastic injection‑moulded components and small metal fabrications.
• Create innovative mechanical solutions optimised for manufacture, assembly, reliability, sustainability, and ease of installation.
• Ensure that existing designs are managed and supported through their lifecycle.
• Perform DFMEAs and drive corrective actions to eliminate risk.
• Prepare detailed 3D CAD models and 2D drawings using Solid Works.
• Use our PLM system to manage design data, change processes, and control configuration management.
• Participate in prototyping activities, engineering evaluations, and physical testing.
• Support regulatory and environmental testing with Labs and Compliance teams.
• Apply sustainability‑led design principles (DfE, eco‑design, materials optimisation).
• Collaborate cross‑functionally with Electronics, Compliance, Software, Manufacturing, and Programme teams.

• Experience defining mechanical architecture at the system level (interfaces, structure, materials).
• Execute simulations: FEA (static/dynamic), CFD, tolerance analysis, mouldflow, or ray‑tracing.
• Familiarity with Model‑Based Definition (MBD).
• Knowledge of digital engineering methods, simulation automation.
• Understanding of modern automated and smart manufacturing technologies.
• Ability to support continuous improvement initiatives and introduce new technologies.

• Good Communication skills - Listening and giving honest, constructive feedback.
• Trusts and empowers staff to make decisions and be the best that they can be.
• Practices a coaching/mentoring ethos.
• Builds and promotes teamwork.
• Is effective at managing relationships.
• Effectively manages emotions and impulses, showing or restraining certain emotions depending on what is necessary and beneficial for the situation.
• Has the drive to improve and achieve, taking initiative, being assertive, optimistic when facing setbacks, and resilient.
• Has effective social skills of managing relationships in a way that benefits the company.
• Is innovative and solutions‑driven towards all business challenges.
• Shows change agility:
  Is agile and responsive to change, seeks out new and first‑time experiences.
• Shows results agility:
  Performs well in all situations using skill, resourcefulness, and inspiring teams to deliver top results.
• Learns from mistakes and finds value in criticism.
• Shows resilience and persistence.

• Advocate for Continuous Improvement, actively participating in team or business improvement, supporting team‑oriented activities and demonstrating collaborative interaction.
• Ensure all concessions or official changes released through the business are managed and implemented timely and concisely, inform and train others, and maintain controlled records.
• Communicate essential information, present and report results clearly, concisely, and timely.

• Support development of new fire detection technologies and enhancements to existing designs.
• Ensure continuous professional development to maintain technical competence.
• Engage in design reviews, lessons learned…