Mine Engineering Intern
Sep 14, 2026 Harrisburg, PA
About us
We are a family of many cultures, operating in 28 countries, and we value the contribution of all our people all over the world.
- Size: 10,000+ employees
- Industry: Industrial: Building Materials Manufacturing
Why you should apply for a job to CRH:
5.0/5 in overall job satisfaction
5.0/5 in supportive management
100% say women are treated fairly and equally to men
100% would recommend this company to other women
100% say the CEO supports gender diversity
Ratings are based on anonymous reviews by Fairygodboss members. See all reviews ›
Job ID: 528840
Pennsy Supply is a CRH company. CRH is the leading vertically integrated supplier of asphalt, aggregates, cement, ready-mix concrete, and paving and construction services in North America. Our 24,100 employees at 1,300 operating locations provide our customers with top-quality, innovative products and services.
Position Overview
The Mine Engineer Intern will work for approximately 10-12 weeks at Pennsy Supply, Inc. to integrate the education received from a college and/or university to the company's objectives. The Intern will be exposed to a variety of departments and work environments during the internship. This will involve travel to and between various plants in Pennsy Supply's Harrisburg, PA market region.
Key Responsibilities (Essential Duties and Functions)
Education/Experience
General Requirements
What CRH Offers You
About CRH
CRH has a long and proud heritage. We are a collection of hundreds of family businesses, regional companies and large enterprises that together form the CRH family. CRH operates in a decentralized, diversified structure that allows you to work in a small company environment while having the career opportunities of a large international organization.
If you're up for a rewarding challenge, we invite you to take the first step and apply today! Once you click apply now, you will be brought to our official employment application. Please complete your online profile and it will be sent to the hiring manager. Our system allows you to view and track your status 24 hours a day. Thank you for your interest!
Pennsy Supply, a CRH Company, is an Affirmative Action and Equal Opportunity Employer.
EOE/Vet/Disability
CRH is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, status as a protected veteran or any other characteristic protected under applicable federal, state, or local law.
Pennsy Supply is a CRH company. CRH is the leading vertically integrated supplier of asphalt, aggregates, cement, ready-mix concrete, and paving and construction services in North America. Our 24,100 employees at 1,300 operating locations provide our customers with top-quality, innovative products and services.
Position Overview
The Mine Engineer Intern will work for approximately 10-12 weeks at Pennsy Supply, Inc. to integrate the education received from a college and/or university to the company's objectives. The Intern will be exposed to a variety of departments and work environments during the internship. This will involve travel to and between various plants in Pennsy Supply's Harrisburg, PA market region.
Key Responsibilities (Essential Duties and Functions)
- Maintain strict adherence to all our Safety policies. You will learn the different rules and regulations of MSHA/OSHA/DOT and Pennsy Supply, Inc. in the early days of your internship.
- Working with Operations to review the following:
- Collaborates and conducts geological exploration and analysis.
- Assist in short/long term mine planning.
- Inventory management.
- Mine permitting.
- Analyzing geology at multiple quarries
- Understand how plant operations work.
- Introduction to the engineering process
- 3-year capital expenditures
- Aggflow analysis
- Right size mobile equipment
- Cost saving initiatives
- Project payback criteria
- Assist Drone Operator for mine planning, topography mapping and stripping calculations.
- Quality Control/Quality Assurance
- Spend time in field operations for aggregates.
- Shadow operations personnel to learn operational planning and aggregate objectives.
- Work with crews and managers on blasting operations.
- Other duties as assigned.
- Regular and timely attendance
Education/Experience
- Mine Engineering or Geology major with college and/or University Junior.
- Desired 3.0 GPA or higher.
- Excellent computer skills and proficient in Word and Excel.
General Requirements
- Mobility to attend various meetings and events at offsite locations.
- Ability to travel with a current driver's license.
- Must submit to a drug screen and criminal background check.
What CRH Offers You
- Highly competitive base pay
- Health and wellness programs
- An inclusive culture that values opportunity for growth, development, and internal promotion
About CRH
CRH has a long and proud heritage. We are a collection of hundreds of family businesses, regional companies and large enterprises that together form the CRH family. CRH operates in a decentralized, diversified structure that allows you to work in a small company environment while having the career opportunities of a large international organization.
If you're up for a rewarding challenge, we invite you to take the first step and apply today! Once you click apply now, you will be brought to our official employment application. Please complete your online profile and it will be sent to the hiring manager. Our system allows you to view and track your status 24 hours a day. Thank you for your interest!
Pennsy Supply, a CRH Company, is an Affirmative Action and Equal Opportunity Employer.
EOE/Vet/Disability
CRH is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, status as a protected veteran or any other characteristic protected under applicable federal, state, or local law.
Additional Information
- Posted: Sep 14, 2026