Sr. Recruiter

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 Sr. Recruiter to build the teams behind the teams at Mariana Minerals. You'll own full-cycle recruiting across corporate functions, helping us scale a software-first critical minerals company from the ground up.

You'll partner directly with functional leaders to understand what great looks like, find people who have done this at fast-growing companies, and give every candidate an experience that reflects who we are. This is a great fit for someone who loves the full recruiting cycle, builds trust quickly with leaders, and wants to help shape how a company hires.

What You'll Do

• Own full-cycle recruiting for G&A and corporate roles, from intake through offer close
• Partner with hiring managers and executives to define role requirements, hiring plans, and interview processes
• Build creative sourcing strategies for both active and passive candidates across finance, legal, HR, operations, procurement, and other functions
• Run personalized, thoughtful outreach that reflects our mission and stage
• Manage multiple searches at once while keeping a high quality bar
• Coach interviewers and hiring managers on structured interviewing, calibration, and debriefs
• Lead compensation conversations, close candidates, and manage competing offers
• Keep Ashby clean and current, and track pipeline health, time to fill, and other key metrics
• Share market insights on compensation, talent availability, and competitor activity
• Help build and improve recruiting processes, templates, and playbooks as we scale
• Represent Mariana Minerals with a warm, engaging, and transparent candidate experience
• Build diverse, high-quality pipelines across experience levels
• Opportunity to help build our early-career and university recruiting efforts, including internships and new grad hiring, as we grow
• Desired Qualifications
• 5-8+ years of full-cycle recruiting experience, with meaningful G&A or corporate recruiting in a high-growth startup or technology company
• Experience recruiting across a range of functions (finance, legal, people, operations, sales, marketing)
• Proven ability to partner with senior leaders and executives
• Strong sourcing skills, including LinkedIn Recruiter, Boolean search, and passive candidate outreachExperience building recruiting processes or playbooks from scratch
• Experience hiring for early-stage finance, legal, or people teams
• Familiarity with seed-to-Series B recruiting environments
• Expert in ATS tools (preference for Ashby)
• Strong written communication and personalized outreach skills
• Strong closing and negotiation skills
• Data-driven approach to pipeline management
• High ownership mindset and comfort with ambiguity
• Passion for building exceptional teams and creating outstanding candidate experiences
• Nice to Have
• Experience with campus or early-career recruiting
• Experience in industrial, hardware, energy, mining, or deep tech companies
• Our culture is built on four principles: Everyone Gets Home Safe.
• We never put speed or cost ahead of people.
• 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!