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Senior Assessor, Responsible Mining

Houston, Texas💼 Full-time🗓 2026-07-28 → 2026-09-27

Core

Lead independent third-party certification and assurance audits for mining and metals operations against international sustainability, ESG, and management system standards.

Role type

Senior Lead Auditor (Sustainability/ESG/Management Systems)

Builds

Credible sustainability and ESG performance certifications for global mining and metals organizations

Domain

Mining and Metals / Sustainability Assurance / ESG

Deliverable

production ML models | product features | dashboards & analysis | research | client delivery | infrastructure | physical/clinical work -> client delivery (audit reports and certification)

Required skills

Lead auditor status (ISO 14001/45001/50001/9001), Responsible mining standards expertise (IRMA/Copper Mark/ICMM/ASI), Management system auditing, Multidisciplinary team leadership, International travel (up to 75%), Stakeholder engagement

Preferred skills

Social Impact Assessment (SIA), FPIC, Indigenous rights, Human rights frameworks (IFC/SA8000/ILO), OECD Due Diligence, UN Guiding Principles, Multilingual capabilities (Spanish/Portuguese/French/Bahasa)

Technologies

ISO 14001, ISO 45001, ISO 50001, ISO 9001, IRMA, Copper Mark, ICMM Mining Principles, ASI, IFC Performance Standards, SA8000, ILO Conventions, OECD Due Diligence Guidance, UN Guiding Principles

Responsibilities

Lead third-party certification audits across ISO and responsible mining frameworks, Evaluate organizational conformance and ESG performance, Develop audit plans and coordinate multidisciplinary teams, Produce high-quality audit reports, Provide technical leadership in fieldwork and reporting, Mentor developing auditors, Support business growth through advisory engagements

Seniority

Senior, hands-on IC with leadership and mentorship responsibilities

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