Cranleigh STEM
Principal Project Manager
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H-Power
H-Power is a UK-based, AIM-listed clean energy company developing zero-emissions hydrogen power systems. Using ammonia to produce low-carbon hydrogen at the point of need, and fuel cells to convert it into reliable, off-grid power, H-Power offers a scalable, practical alternative to fossil fuels, serving construction, infrastructure, transport, and power generation sectors.
Behind the technology is a team driven by a shared purpose: to accelerate the shift away from fossil fuels.
H-Power is seeking a Principal Project Manager to take ownership of its HY-5 ammonia cracker programme, a complex, multidisciplinary engineering project.
Principal Project Manager
Responsibilities:
- Full ownership of the HY-5 ammonia cracker programme, including delivery plans, milestones, budgets, and reporting.
- Lead a complex, multidisciplinary project involving systems, process, mechanical, electrical, and software engineering teams.
- Create clear structure around technical dependencies, priorities, resources, and decision-making.
- Manage project risks, identify practical mitigation actions, and escalate critical issues when required.
- Drive timely engineering decisions, confidently challenging stakeholders and holding teams accountable for delivery.
- Build trusted relationships with engineers, Chief Engineers, senior leaders, suppliers, and other programme stakeholders.
- Maintain accurate schedules, forecasts, risk registers, and project reporting that stakeholders can rely on.
- Support the programme through product build, testing, validation, productisation, and eventual production.
- Contribute to the continued improvement of H-Power's wider project-management practices and processes.
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Requirements:
- Proven experience delivering complex engineering or product-development projects.
- A proven track record of managing high-value, multimillion-pound programmes involving multiple engineering disciplines and stakeholders.
- Strong project-management fundamentals, with the ability to bring clarity and control to complex or ambiguous environments.
- Experience taking technically complex products through structured development, testing, compliance, and industrialisation stages.
- A confident people person who can influence without direct authority, build trust, and push back constructively when required.
- A logical, adaptable, and highly organised approach, with strong attention to detail.
- Experience within a large engineering, automotive, advanced manufacturing, energy, process, or similarly regulated business would be beneficial.
- An engineering degree is preferred, or an equivalent technical background.
- APM accreditation is preferred; PMP, PRINCE2, or equivalent practical experience will also be considered.
- Strong working knowledge of Microsoft Project or equivalent project-planning tools.
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Working Pattern
The successful candidate will initially be expected on site in Dunsfold four days per week for the first three to six months, allowing them to understand the technology, team, and programme fully. Greater flexibility may be available once established.
H-Power has appointed Cranleigh STEM as its exclusive RPO recruitment partner. To find out more or apply, contact Lewis at Cranleigh STEM: lewis@cranleighstem.co.uk
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