Human Resources Manager

Flash Metals USA is a pioneering clean-tech industrial company based in Houston, Texas, focused on sustainable domestic processing and recovery of rare earth elements and other critical metals using its proprietary Flash Joule Heating (FJH) technology. As part of the company’s rapid technology scale-up and demonstration plant construction, we are building world-class health, safety, security, and environment systems to support current and future operations across the United States.

The HR Manager is responsible for delivering hands-on, end-to-end human resources support to Flash Metals USA during a period of rapid growth and operational scale-up in the United States.

This role covers recruitment, onboarding, employee relations, performance management, compliance, learning and development, and the establishment of foundational HR systems. Working closely with U.S. site leadership and the Metallium Group HR team in Australia, the HR Manager will help build a compliant, high-performing, and values-driven workplace.

This role is ideal for a practical HR generalist who is comfortable operating in a small but fast-growing organization and wants to help build a people function from the ground up.

KEY RESPONSIBILITIES

- Lead end-to-end recruitment for U.S. roles, including job postings, screening, interviewing, and selection.

- Manage onboarding and mobilization for new hires, ensuring a positive and compliant employee experience.

- Act as the first point of contact for employee relations matters, performance issues, and workplace concerns.

- Support managers with performance management, investigations, and dispute resolution processes.

- Develop and maintain HR policies, procedures, handbooks, and employment documentation aligned with U.S. employment laws.

- Ensure compliance with federal, state, and local employment regulations, including FLSA and relevant state requirements.

- Coordinate payroll inputs, leave management, and time and attendance processes.

- Implement and maintain foundational HR systems, records, and reporting frameworks.

- Support culture, engagement, learning, and capability development initiatives.

- Assist with workforce planning, role design, and organizational development as the business scales.

- Partner with HSE teams to support training, wellbeing, and return-to-work processes.

- Collaborate closely with the Metallium Group HR team to align with group frameworks, values, and governance.

QUALIFICATIONS

Required

- 5+ years’ experience in a hands-on HR generalist or HR Manager role.

- Strong working knowledge of U.S. employment law and HR compliance requirements.

- Experience managing recruitment, onboarding, performance management, and employee relations.

- Experience supporting or conducting workplace investigations and resolving employee disputes.

- High attention to detail with strong documentation and process discipline.

- Demonstrated ability to establish HR policies, systems, and processes in a growing organization.

- Strong communication, relationship-building, and coaching skills.

Preferred

- Experience in industrial, manufacturing, clean-tech, energy, or project-based environments.

- Exposure to start-up or scale-up organizations.

- Experience supporting training and development initiatives.

- HR accreditation or postgraduate qualification in HR or a related discipline.

- Experience working with international or multi-site teams.

Work Conditions & Requirements

- Based in Houston, Texas, with daily on-site presence required during construction and commissioning.

- Occasional travel to future project sites or vendor locations.

- Must be legally authorized to work in the United States.

- Employment is contingent on successful background, reference, and employment verification checks.

Why Join Flash Metals USA

This is an opportunity to shape the people, culture, and HR foundations of a growing clean-technology company at a critical stage of its development. You’ll work closely with leadership, influence how the organization grows, and help build scalable HR practices to support long-term success.

Flash Metals USA is an equal opportunity employer. We are committed to creating an inclusive workplace and consider all qualified applicants for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, veteran status, or any other characteristic protected by applicable law.

Benefits:

- 401(k)

- Dental insurance

- Health insurance

- Paid time off

- Vision insurance

Work Location: In person