An innovative UK clean energy business is seeking a Chief Engineer to lead the development and delivery of large-scale ammonia-to-hydrogen systems for commercial deployment. This is a senior technical authority role responsible for integrating proprietary ammonia cracking technology into prototype and production-ready hydrogen generation systems. This position sits at the intersection of innovation and delivery, translating advanced core technology into robust, certified, customer-facing products. Chief Engineer Location: Cranleigh, Surrey Salary: £ Competitive Excellent Benefits Role: Full-time, Permanent The Role You will: · Provide technical leadership for the development and delivery of customer-facing ammonia cracking systems · Work alongside the Chief Engineer to integrate proprietary technology into deployable products. · Act as technical authority across a multidisciplinary engineering team (mechanical, electrical, process, controls). · Own the product lifecycle from concept through production handover and post-launch change management. · Ensure compliance with relevant legislation and certification requirements. · Manage configuration control and engineering change processes. · Direct matrixed engineering teams to deliver to agreed schedule, cost and performance targets. · Work with Project Management to manage budget, BOM and technical risk. · Liaise with suppliers, contractors and external partners to ensure successful system integration. · Drive root cause analysis and continuous technical improvement. · Maintain alignment with product strategy roadmaps This is a hands-on leadership role combining technical depth, structured delivery and product ownership. What We’re Looking For · Degree in an engineering or scientific discipline. · 10 years leading complex engineering product development within industrial environments. · Proven delivery of large-scale, high-integrity systems from concept to production · Experience acting as technical authority across multidisciplinary teams. · Strong understanding of structured development frameworks, quality and change management. · Experience managing verification, certification and engineering documentation · Strong communication skills across technical and commercial stakeholders. Desirable Experience · Background in process engineering (reaction engineering, gas purification, combustion). · Experience with high-temperature and/or high-pressure systems. · Knowledge of fuel processing or power systems. · Familiarity with systems engineering and design verification methods. · Exposure to clean energy, hydrogen or ammonia technologies. This is a senior- level opportunity to lead the commercialisation of proprietary hydrogen generation technology, shape engineering delivery within a growing clean energy business, and operate as a recognised technical leader in a rapidly evolving sector. For a confidential discussion, please apply or contact Lewis directly lewis@cranleighstem.co.uk