About Mariana Minerals

Mariana Minerals is a software-first, vertically integrated minerals company on a mission to supply the critical minerals powering modern energy, AI, and defense technologies. We’re reimagining the minerals supply chain by combining deep industry expertise with advanced software, automation, and data-driven decision-making.

The Role

We are hiring a contract Recruiting Coordinator to support and scale our hiring operations across technical and business roles.

This role is critical in ensuring a seamless and high-quality candidate experience while enabling our recruiters and hiring managers to operate efficiently. You’ll own scheduling, coordination, and candidate communications, while helping improve recruiting processes and systems. This is a high-impact role with exposure across the company and an opportunity to help build recruiting infrastructure from the ground up.

What You’ll Do

• Coordinate and schedule interviews across multiple time zones

• Manage candidate communications throughout the hiring process

• Partner with recruiters and hiring managers to ensure smooth interview workflows

• Maintain accurate candidate data in the ATS

• Assist with job postings and role updates across platforms

• Support offer coordination and onboarding logistics

• Help track recruiting metrics and pipeline health

• Identify and implement process improvements in recruiting operations

• Ensure an exceptional, high-touch candidate experience

   

Desired Qualifications

• 1-3 years of experience in recruiting coordination, HR, or similar operations role

• Strong organizational skills and attention to detail

• Ability to manage multiple priorities in a fast-paced environment

• Excellent written and verbal communication skills

• Experience with ATS platforms (e.g., Ashby, Greenhouse, Lever) and calendar tools

• High ownership mindset with a bias toward action

• Comfortable working with cross-functional teams

• Interest in startups, operations, or building scalable processes

   

Why Join Us?

At Mariana Minerals, you’ll be part of a mission-driven team reshaping the way critical minerals are sourced and supplied globally. You’ll have the autonomy to make big decisions, the tools to innovate, and a culture that values ownership, smart automation, and collaboration.

Our culture is built on three principles:

Extreme Ownership – We take full responsibility for outcomes, relentlessly driving toward solutions.

Engineer Out Requirements, then Automate – We simplify, optimize, and then automate for scale.

Share Your Legos – We collaborate openly, share knowledge, and empower each other to build bigger, better solutions.

Join us as we build the future of responsible mineral sourcing and supply.

Mariana is an Equal Opportunity Employer. We celebrate diversity and are committed to creating an inclusive environment for all employees. We do not discriminate on the basis of race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, veteran status, or any other protected status.