Product Development Intern
Portland, ME, US, 4102
Job ID: 517699
Non-Exempt
Oldcastle Infrastructure™, a CRH company, is the leading provider of utility infrastructure solutions for the water, energy, and communications markets throughout North America. We’re more than just a manufacturer of precast concrete, polymer concrete, or plastic products. We’re a trusted and strategic partner to engineers, contractors, distributors, specifiers, and more. With our network of more than 80 manufacturing facilities and more than 4,000 employees, we’re leading the industry with innovation and a safety-first mindset.
Job Summary
Oldcastle Infrastructure delivers innovative solutions to improve water quality and protect the environment. We are seeking a motivated Product Development Intern to support our research and development team. This is an excellent opportunity to gain hands-on experience in industrial research and assist in the development of water treatment equipment, from lab-scale models to full-sized prototypes. As an intern, you will work closely with our staff engineers and technicians to conduct experiments, build prototypes, and ensure lab safety and efficiency.
What You’ll Gain:
• Practical experience in a laboratory setting with exposure to innovative water treatment technologies.
• Mentorship from industry professionals in a collaborative and supportive environment.
• The opportunity to contribute to impactful projects that improve water quality and environmental sustainability.
This position is expected to start in person around May 2026 and continue through the entire summer term (i.e. May 2026 through August 2026). We ask for a minimum of 12 weeks, full-time, onsite for most internships.
Job Location
- This is an onsite position located in Portland, ME.
Job Responsibilities
- Assist in building full-scale and lab-scale hydraulic models using piping, rigging and fabrication techniques
- Perform routine laboratory tests and analyses using techniques such as TSS and turbidity analysis.
- Prepare chemical solutions and samples under guidance from senior staff.
- Maintain accurate records of experimental data and observations.
- Support the calibration, troubleshooting, and maintenance of laboratory equipment.
- Follow safety protocols and maintain a clean working environment.
- Participate in team discussions and contribute ideas to improve processes.
Job Requirements
- Junior or Senior currently pursuing a degree in Mechanical Engineering, Civil Engineering, or a related field.
- Basic understanding of laboratory practices and safety protocols.
- Hands-on experience with general tools and building prototypes (from coursework or prior projects) is a plus.
- Ability to stand for extended periods and lift up to 50 lbs (with accommodations as needed).
- Strong organizational, time management, and multitasking skills.
- Effective verbal and written communication abilities.
- Proficiency with Microsoft Office Suite (Outlook, Word, Excel, etc.).
- A willingness to learn and adapt to new techniques and tasks.
Compensation
- The hourly pay rate is $25/hr.
What CRH Offers You
- Highly competitive base pay
- Comprehensive medical, dental and disability benefits programs
- Group retirement savings program
- 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!
Oldcastle Infrastructure, 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.
Job Segment:
Wastewater, Water Treatment, R&D Engineer, Chemical Research, Mechanical Engineer, Engineering