Mechanical Designer​/EI

At HDR, our employee‑owners are fully engaged in creating a welcoming environment where each of us is valued and respected, a place where everyone is empowered to bring their authentic selves and novel ideas to work every day. As we foster a culture of inclusion throughout our company and within our communities, we constantly ask ourselves:
What is our impact on the world?

Each and every role throughout our organization makes a difference in our ability to change the world for the better. Read further to learn how you could help make great things possible not only in your community, but around the world.

We believe electricity powers modern life. As part of our Power sector, you'll help shape how electricity is generated, transmitted and delivered as global energy demands grow. From massive data centers to modernizing transmission systems, our industry‑recognized engineers and scientists have been at the forefront of grid transformation for more than a century. You'll work side‑by‑side with these experts and contribute to reliable, resilient and sustainable power systems, helping communities thrive and industries expand.

This isn't just a job, it's a chance to drive infrastructure forward, power innovation and leave your mark on our energy future.

• Perform routine engineering assignments, with instruction from the Project Engineer or others regarding the expected results.
• Conduct analyses to develop design options or recommendations and assist in the preparation of cost estimates and specifications.
• Provide owner's engineering support for equipment overhauls, rebuilds and new equipment installation.
• Support feasibility studies or conceptual designs for new or expanded projects.
• Support inspections and condition assessments of existing facilities.
• Support mechanical life extension and system upgrades of existing facilities.
• Support mechanical balance of plant upgrades at existing facilities.
• Prepare equipment procurement and design specifications.
• Perform performance testing of hydro turbine equipment.
• Conduct equipment and contractor bid evaluations.
• Produce mechanical system designs including P&IDs, equipment sizing, detailed design, and system calculations.
• Work independently on small projects, or assist more‑senior engineers on larger projects.
• Perform other duties as needed, including other disciplines such as structural engineering or the hydrology and hydraulics group.
• Participate in a dynamic work environment, performing desk engineering, field work, and project management tasks under guidance of senior staff.

• Bachelor's degree in Engineering.
• Computer skills in Microsoft Office.
• An attitude and commitment to being an active participant of our employee‑owned culture.

• Previous internship experience.
• Engineer intern (EI)/ Engineer‑In‑Training (EIT) certificate. Candidates without their EI will be titled "Mechanical Designer" and will be expected to obtain their EI for career progression.
• Strong communication skills.
• Strong time management skills.
• Recent graduates will be considered.
• Local candidates preferred.

Primary

Location:

United States—Maine—Portland
Industry: Power

Schedule:

Full‑time
Employee Status:
Regular
Business Class:
Hydropower Engineering
Job Posting:
Jan 23, 2026