Administrative Assistant

U. S. Steel is seeking an Administrative Assistant III to provide high-level administrative, organizational, and operational support to the Minntac and Keetac mining operations. This role is critical to ensuring the effective coordination of leadership activities across a large, complex mining organization. The position requires exceptional organizational capability, professionalism, discretion, and the ability to operate in a fast-paced, safety-critical environment supporting approximately 2,000 employees across mine, plant, maintenance, and support functions.

Key Responsibilities

• Serve as the central coordination point between the General Manager and Operations, Maintenance, Engineering, Safety, HR, Finance, and Supply Chain.

• Manage the General Managers calendar, ensuring alignment with operational priorities and proactively resolving scheduling conflicts.

• Coordinate all internal and external meetings, including staff meetings, leadership reviews, stakeholder engagements, and executive or regulatory visits.

• Prepare agendas, presentations, briefing materials, and memos, and ensure timely distribution of all meeting documentation.

• Capture meeting notes, decisions, and action items, maintaining accurate action logs to support accountability and followthrough.

• Maintain organized records, files, and documentation, and distribute daily, weekly, and monthly operational reports.

• Screen and prioritize incoming communications to ensure timely information flow across leadership and departments.

• Plan and manage travel arrangements, site access, logistics, and event coordination for executive visits, leadership tours, and internal events.

• Support daily office operations, including supply management, onboarding coordination, and training logistics.

• Anticipate leadership needs by preparing crossdepartment materials and identifying risks in scheduling or communication.

Requirements

• High School Diploma or equivalent

• Minimum 5 years of administrative support experience

• Proficiency in Microsoft Office (Outlook, Excel, PowerPoint)

• Ability to manage multiple priorities in a fastpaced environment

• Excellent written and verbal communication skills

• High level of discretion and confidentiality

• Proactive, forwardthinking approach

• Strong coordination and followthrough

• Ability to work effectively across multiple functions

• Strong organizational and timemanagement capabilities with a high attention to detail and accuracy

• The salary range of $78,114.40 to $117,172 is a good faith estimate, and based on candidate skills/experience the final offer may be lower/higher

Preferred Skills

• Executive / senior leadership administrative support

• Previous experience in an industrial, mining, or manufacturing environment