HR Business Partner, Phasecraft

• 5+ years’ HR experience, including time as a business partner or HR generalist in a deep-tech, R&D, or engineering-led start-up or scale-up
• Proven ability to operate independently with excellent judgment and pragmatism in ambiguous, complex environments
• Experience building scalable people processes in a growing company
• Strong working knowledge of UK employment law and exposure to international employment contexts (US ideal)
• Proven ability to manage employee-relations issues with professionalism and discretion
• Excellent communication and interpersonal skills and a track record of being a trusted, credible, empathetic, and commercially minded HR professional

Desirable

• As we grow, we are committed to maintaining a collaborative, mission driven culture where our people feel supported, developed and inspired
• To support this we are looking to hire a HR Business Partner to join our team as a trusted advisor to our founders, managers and staff, delivering outstanding people support while helping us scale effectively and sustainably
• The HR Business Partner will balance strategic input such as organisation design, engagement, and development with hands-on execution in areas such as employee relations, performance, onboarding and compliance
• Partner with leaders and managers to provide expert HR advice and coaching
• Partner with leadership to embed company values and foster an inclusive, high-performance culture
• Lead on organisational design and talent reviews as the company scales
• Build trusted relationships across all levels, ensuring employees have a consistent and positive experience
• Design and deliver performance review cycles, goal-setting frameworks, and feedback tools
• Maintain and update company policies and the employee handbook; ensure compliance with employment law across multiple jurisdictions
• Support managers with capability, coaching, and development conversations
• Manage employment documentation, contracts, and visa support with external providers as needed
• Work closely with payroll and external providers to ensure accurate and timely people administration
• Oversee onboarding and induction processes, ensuring consistency across global offices
• Manage probation processes and support managers in providing structured feedback
• Own employee data accuracy and HR systems (HRIS)

• The closing date for applications is 4 October 2026