Underground Construction Technician

Rio Tinto•Superior, WI

12d•Onsite

About The Position

Build your career underground with one of Arizona’s most advanced mining projects. As an Underground Construction Technician, you will play a hands-on role installing the critical infrastructure that keeps operations moving safely and efficiently. This is an opportunity to expand your skills across mechanical, piping, structural, and civil work, all while working alongside experienced professionals who are invested in your development and long-term growth in the Copper Triangle. A strong shift starts with clear direction and well-coordinated crews. Materials are staged and ready, communication across teams is aligned, and installations move forward without delays. You and your team install piping and ventilation systems efficiently, complete equipment alignment and testing with confidence, and close out the shift knowing your work met quality standards and supports safe, reliable operations. Not every shift goes to plan. At times, you may encounter incomplete deliveries, tight underground conditions, or discrepancies between drawings and field reality. You adapt by coordinating closely with engineering, re-sequencing tasks, and maintaining a strong focus on safety. Even when progress requires extra effort, your ability to communicate, solve problems and stay flexible ensures the work continues moving forward without compromising standards. You will be guided by an experienced Underground Operations Supervisor and supported by a collaborative team of construction, maintenance, engineering, and contractor partners who work together to help you succeed and grow.

Requirements

Comfortable working in underground environments while following PPE and safety requirements
Hands-on experience in underground mining, tunneling, or heavy construction
Ability to read and interpret technical drawings and translate them into quality field work
Physically capable of performing manual tasks including lifting, carrying, and sustained work underground
Strong team player who communicates clearly and supports others to get the job done
Approach challenges with a problem-solving mindset and adapt quickly to changing conditions
Hold a high school diploma or equivalent
Valid driver’s license

Responsibilities

Prioritize safety every shift by following underground safety standards, completing pre-start checks, and actively identifying and addressing hazards
Install and modify underground piping systems including service water, compressed air, glycol, and dewatering lines
Install, align, and support commissioning of pumps, cooling systems, and mechanical equipment
Assemble and install ventilation systems including fans, ducting, and regulators
Build and install structural steel, platforms, and equipment supports to specification
Support concrete, civil, and grouting activities including formwork and equipment setting
Perform testing and commissioning activities such as hydrotesting, flushing, and functional verification
Safely operate tools, rigging systems, and light equipment while supporting underground material movement
Support a safe and coordinated work environment by collaborating daily with engineering, maintenance, and contractor teams
Read and interpret engineering drawings, P&IDs, fabrication drawings, and isometrics with confidence
Verify field conditions and communicate discrepancies to maintain construction accuracy
Coordinate underground material staging and deliveries to keep work progressing efficiently
Track daily progress and provide clear updates to supervisors and team members
Maintain accurate construction documentation including redlines and as-built markups
Contribute to project planning, sequencing, and scheduling discussions
Work collaboratively across teams to meet project timelines and quality expectations

Benefits

A safety-focused and inclusive working environment
Advantageous salary package with annual cash incentive awards (STIP) for eligible employees
Access to top-tier family-friendly health programs including medical, prescription drug, dental, vision, life insurance coverage, and various voluntary benefits
Excellent retirement plan including up to 6% defined company contribution
Generous 401k matching program
Generous Rio Tinto employee share program, which allows you to purchase Rio Tinto Company shares
Comprehensive leave policies which cover all moments that matter in life: PTO (paid time off), paid holidays, and paid bereavement leave
A favorable child-caregiver leave program (Up to 100% salary top-up)
Discount programs for leisure purposes and access to Virgin Pulse with incentives supporting your wellbeing
Ongoing Employee Assistance Program (EAP) for you and your family; to help in addressing educational opportunities, addiction treatment, depression, stress, domestic issues, financial management, and legal concerns
Support and resources to explore learning potential and career goals