Office Assistant

Position Description:

Part-Time Office Assistant Location:

Monahans, TX (onsite) |

Schedule:

Monday - Friday, 9:00 AM - 3:00 PM (subject to change based on business needs and Daylight Savings) Reports to: Corporate HR Director (Mesa, AZ) with dotted line report to

Operations Area Manager FLSA Status:

Part-Time Non-Exempt |

Pay:

Starting at $23.00/hour DOE Company At Rango, moving material isn't just what we do. It's what we're built for. With deep expertise and years of hands-on experience, we operate like our machines: productive, efficient, and powerful. Since 2012, Rango has grown into a leading mining services company across the Southwest. We partner with mining and construction companies in sectors from aggregates to precious metals and industrial minerals. Our culture is fast-paced, supportive, and team-oriented — and we're just getting started. Join Rango and be part of a crew that keeps things moving. Position Summary We are seeking a reliable and detail-oriented Part-Time Office Assistant to support daily administrative operations for a contract mining company in West Texas. This role is essential to maintaining an organized, efficient office environment while providing cross-functional support to the HR, Safety, Maintenance, and Operations teams. The ideal candidate brings a strong customer service mindset and thrives in a fast-paced industrial environment. Key Responsibilities Administrative & Office Support Answer and direct incoming calls Greet and assist walk-in visitors Maintain office supplies inventory Perform clerical duties (mail, invoicing, data entry, document management) Calendar management & scheduling support Cross-Functional Support Support HR, Safety, Maintenance, and Operations teams as needed Assist with safety documentation and training records Support reporting and coordination tasks Provide various employee support as needed Assist with New Hire Orientation Ensure communication between field and office staff Employee Engagement & Event Support Assist with employee events and recognition Support onboarding logistics and related employee communications including I-9 work authorization process, pre-employment/random drug testing, and New Employee Orientation activities including benefits overview presentations. Qualifications High School Diploma or GED required 2+ years office experience preferred Strong organizational skills, attention to detail, and critical thinking skills Effective written and verbal communication skills Microsoft Office proficiency Ability to handle confidential information with appropriate discretion Customer-focused mindset and a comfort level juggling a variety of responsibilities and duties Previous mining, construction, or similar industry experience preferred Work Environment & Physical Requirements Ability to sit or stand for extended periods Ability to bend, stretch overhead, and lift up to 20 lbs occasionally Operation of standard office environment including computers, printers, etc. Personal protective equipment is required when performing work in a mine, outdoor, manufacturing or plant environment, including hard hat, hearing protection, safety glasses, safety footwear, and as needed, respirator, rubber steel-toe boots, protective clothing, gloves, and any other protective equipment as required. Rango promotes a drug/alcohol-free work environment, mandatory pre-employment drug testing and on-going random drug testing as allowed by applicable state laws.