Jr. Mechanical Engineer, Machine Design

At Re:

Build, our mission is to ensure the next generation of important products are made, at scale, in America. We are laying the foundation for a better future for our customers, employees, and communities by revitalizing America's manufacturing base and creating meaningful jobs across the country, including in historically deindustrialized regions.
We operate an advanced, end-to-end manufacturing platform that partners with industrial companies and innovators to take products from first concept to full-scale production in critical verticals including aerospace and defense, electrification, medical, energy and environment, and robotics and automation.
The way we operate is as important as the work we do. It's guided by The Re:

Build Way, 16 principles that shape how we collaborate with each other, partner with our customers and vendors, and contribute to the communities where we operate.(link to The Re:Build Way principles )

At Re:

Build Optimation, we specialize in delivering custom-engineered process equipment and automated systems to clients across the globe. With nearly 40 years of experience in complex chemical process systems, we have built a reputation for precision, reliability, and innovation. Our multidisciplinary team of 70+ engineers, designers, and programmers, combined with 150,000 square feet of fabrication space and over 70 skilled tradespeople, allows us to provide full turnkey solutions—from initial concept through fabrication, installation, and commissioning.

As part of Re:

Build Manufacturing, we leverage the strength of a national industrial powerhouse while maintaining the agility and personalized service of a specialized firm. We serve industries ranging from traditional and green energy to chemicals, pharmaceuticals, food & beverage, glass, and advanced manufacturing, offering tailored solutions that optimize efficiency and performance.

At Re:

Build Optimation, we believe in a collaborative approach, working closely with our clients to develop solutions that align with their unique operational goals. Our deep industry expertise and end-to-end capabilities make us the ideal partner for companies seeking cutting-edge automation, process control, and engineered systems.

You're an early-career mechanical engineer eager to build real skills on the machines that make things happen. Whether you're a recent graduate with proven internship or co-op experience or you have a few years of machine design work behind you, you're motivated to learn from expert engineers and grow into increasing responsibility over time.

You enjoy the technical work—turning ideas into 3D models and detailed drawings, running calculations to make sure a design holds up, and solving problems methodically. You're comfortable asking questions, curious about emerging methods and tools, and you take safety seriously whether you're at your desk, in a fabrication shop, or on a client site. If you value continuous learning and collaboration, this is a strong place to start your career.

• Design and develop mechanical machine components and assemblies with guidance from senior engineers, contributing from concept through completion.
• Create and modify 3D models and 2D drawings in Solid Works.
• Perform engineering calculations and design analysis to ensure technical accuracy.
• Prepare and maintain drawing sets and design documentation.
• Participate in design reviews, incorporate feedback, and help identify and report safety risks.
• Research technical challenges and propose solutions with support from experienced engineers.
• Learn and apply company design standards and engineering guidelines.
• Support HSE initiatives and promote a strong safety culture across…