Job Opportunity: Principal Mechanical Development Engineer Location: Horsham, UK (Hybrid – 50% remote / 50% on-site) Employment Type: Permanent Salary: £50,000 – £70,000 per annum 10% performance-based bonus Other Benefits: 30 days paid holiday 8 statutory days Flexible 37.5-hour workweek 5% employer pension contribution Annual training & equipment budget Travel opportunities during work hours Support for professional accreditation About the Role AirJoule — a pioneering US-based joint venture in collaboration with GE — is expanding its UK operations with the launch of Bracey R&D Ltd, a new product development hub in Horsham. This is a unique opportunity to join a high-growth, clean-tech company on a mission to transform the future of water, energy, and HVAC systems using their novel MOF-based process, empowered by our new turbo-compressor technology. As part of our new UK team, you will help re-engineer and optimize our existing prototype, shaping the next generation of our products. You’ll work alongside leading engineers, blending creative problem-solving with hands-on prototyping, testing, and design refinement. This role is perfect for engineers who are passionate about innovation and thrive in a fast-paced, start-up environment with global collaboration. Key Responsibilities Contribute to the design, development, and testing of high-efficiency mechanical systems Translate design concepts into precise CAD models, simulations and best design practices Assemble and validate mechanical components using high-precision instrumentation Support alignment of design with scalable manufacturing methods Collaborate with international R&D teams, including travel to the USA What We’re Looking For We're hiring an elite group of engineers to cover a range of the following skills: CAD: SolidWorks, Onshape or similar Simulation: Proficiency with stress, vibration, thermal analysis. CFD knowledge useful Design Engineering: Strong background in DfM, DfA, GD&T, FMEA, tolerance management Useful specialities : DC Motors, passive air bearings, vacuum systems, rotating seals Assembly & Testing: Experience building and troubleshooting high-precision assemblies Instrumentation: Knowledge of product validation and test procedures Manufacturing Processes: Knowledge of manual and CNC machining, and gravity die casting Requirements Strong Engineering Degree (or expert specialist) Minimum 6 years of relevant and high-impact industrial experience Full UK driving licence Achieved or eligible for IMechE membership (CEng or IEng) UK / EU passport preferable, DBS clearable, solid references, and clear to visit the USA Highly fluent in English (written and spoken) Located near Horsham / Crawley or able to commute 50/50 hybrid Ready to shape the future of green technology? Contact tbracey@protonmail.com to learn more or apply.