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We are seeking a Senior Mechanical Engineer who can lead the engineering effort to design, build, and validate our first full prototype system. This includes completing the mechanical design for high-temperature operation, managing fabrication and assembly, overseeing testing in Edinburgh, and eventual testing and integration into an industrial field trial in Europe. This is a hybrid technical and hands-on role ideal for an engineer who wants full ownership, autonomy, and the opportunity to shape a breakthrough climate technology from its earliest stages.
Job Responsibility:
Lead the mechanical design of high-temperature (>500°C) thermal and structural components
Manage prototype fabrication, procurement, suppliers, and workshop activities
Assemble, commission, and troubleshoot the first integrated prototype
Develop and operate test rigs for thermal and structural performance testing
Analyse test data and feed results back into design iterations
Support integration with industrial partners for field trials in Europe
Establish engineering processes, documentation, and best practices as the first technical hire
Contribute to risk assessments, FMEA, and design-for-manufacture reviews
Requirements:
Degree (or equivalent) in Mechanical Engineering or related discipline
Strong experience (5+ years) designing hardware involving high temperatures, thermal systems, or similar complex mechanical assemblies
Hands-on workshop and prototyping skills (fabrication, machining, assembly, testing)
Ability to take a system from CAD to built hardware with minimal supervision
Experience working with suppliers, contractors, and test facilities
Strong analytical ability, pragmatism, and problem-solving skills
Comfortable working in an early-stage, fast-moving startup environment
Nice to have:
Experience with concentrated solar power, thermal energy systems, combustors, kilns, furnaces, or high-temperature heat transfer
Experience with instrumentation, data acquisition, and thermocouple/sensor integration
Knowledge of materials selection for high-temperature environments (ceramics, alloys, coatings)
Experience managing prototype field trials or industrial deployments
Familiarity with FEA/CFD packages
Prior experience in a startup or small engineering team