Engineering, Construction & Maintenance

Day & Zimmermann is a full-service engineering, construction and maintenance firm with offices in Philadelphia and Lancaster, PA, Greenville, SC, Norfolk, VA and Plano, TX. When you join our team, you’ll join a family whose values are safety, integrity, success, and diversity, and you’ll enjoy a wealth of industry-leading benefits, as well as the support of the entire organization in realizing your goals.


Engineering: If you’re a degreed, registered professional with deep experience in process, civil, structural, mechanical, electrical, or chemical engineering, consider Day & Zimmermann, where you can make a real difference -- in your life, in our business, and in the world.

Construction: Day & Zimmermann’s construction units are committed to delivering the highest levels of quality and safety in the design and construction of buildings and infrastructure. From construction management to self-perform construction and EPC solutions, our reliable, dedicated professionals take great pride in their work, delivering outstanding value, on time and within budget.

Maintenance: As the largest power O&M contractor in the U.S., operating in more than half of the domestic nuclear facilities and more than 40 fossil facilities, we are always looking to expand our team of motivated, passionate problem solvers. We offer a variety of career opportunities to qualified candidates in the craft, QA/QC, administrative, professional, and technical fields, as well as an array of manufacturing, fabrication and machining positions.

If you are committed to safety and have a background in the power, process and industrial markets, you could be a good fit here. Are you ready to join us in creating a tomorrow that is safer, more secure, more innovative, and more productive? Explore our open positions today.