Principal Mechanical Engineer

About Re:Build Optimation

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.

Re:Build Optimation seeks a Principal Mechanical Engineer to lead client projects in various industries. We are looking for a proven leader who is exceptionally skilled in mechanical engineering and is passionate about flawless execution. Our ideal candidate is ambitious, eager to compete, and capable of successfully implementing complex solutions.

Export Control Requirement: Due to applicable export control laws and regulations, candidates must be a U.S. citizen or national, U.S. permanent resident (i.e., current Green Card holder), or lawfully admitted into the U.S. as a refugee or granted asylum.

• Lead mechanical engineering efforts on industrial projects from concept through commissioning, ensuring compliance with applicable codes and client specifications.
• Craft and specify custom and OEM mechanical systems, including piping, HVAC, rotating equipment, pressure vessels, structural supports, and process skids.
• Coordinate and review mechanical drawing packages, calculations, and specifications; lead all aspects of design reviews and vendor coordination.
• Mentor and guide engineers and designers, supporting technical development and quality deliverables.
• Partner with cross-functional teams (process, structural, electrical, controls, fabrication, and field service) to deliver turnkey solutions.
• Engage directly with clients to define scope, present designs, and align on technical recommendations.
• Contribute to project estimating, proposal development, and scheduling with project management and business development teams.
• Conduct field assessments, support commissioning, and lead technical reviews throughout the project lifecycle.
• Develop internal tools and resources to improve training and efficiency.

• BS and/or MS in Mechanical Engineering or related field from an accredited institution; PE license preferred.
• 10+ years of experience in industrial and capital project environments, with strong project prioritization, cost estimating, and user documentation skills.
• Expertise in mechanical systems including (e.g., process piping and pressure vessels)
• Knowledge of ISO9001 and continuous improvement methodologies (Lean, Six Sigma) is a plus.
• Strong grasp of mechanical codes (e.g. ASME) and fabrication techniques.
• Clear and effective communicator with strong organization and time management skills; able to work independently or collaboratively.
• Passion for mentoring and developing junior engineers and training resources.
• Adaptable, curious, and eager to grow in a fast-paced engineering environment.
• Ability to work on-site in Rochester and/or Rush, NY, with travel up to 25% to client or supplier sites

Compensation Range: Annual salary for this position is expected to be between $117,000 to $175,000, plus participation in our annual bonus plan and long term incentive plan. The actual pay may be higher depending on your qualifications and experience. 

We are a company who is going to make a difference in the industries and the communities in which we choose to operate.

Every employee of Re:Build will share ownership in the company and will share in the financial rewards of the success we achieve together, at all levels of the company!

Re:Build Manufacturing is proud to be an Equal Employment Opportunity and Affirmative Action employer. We do not discriminate based upon race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, veteran status, marital status, parental status, cultural background, organizational level, work styles, tenure and life experiences. Or for any other reason.

Re:Build is committed to providing reasonable accommodations for qualified individuals with disabilities in our job application procedures. If you need assistance or accommodation due to a disability, you may contact us at [email protected] or you may call us at 617.909.6275.