Mechanical Engineer - Machine Design

At Re:Build Optimation, we focus on providing tailor-made process equipment and automated solutions worldwide. With close to 40 years of experience in intricate chemical process systems, we are known for accuracy, dependability, and creativity. Our diverse group of more than 70 engineers, designers, and programmers works alongside 150,000 square feet of fabrication facilities and over 70 skilled tradespeople. This enables us to deliver complete turnkey projects—from concept development to fabrication, installation, and commissioning.

As part of Re:Build Manufacturing, we demonstrate 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 innovative automation, process control, and engineered systems.

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.

Who We Are Looking For

You will thrive in this role if you:

• Love designing custom machinery, tooling, and automation equipment from concept to completion.
• Enjoy challenging engineering problems and take pride in developing innovative, practical solutions.
• Can expertly direct engineering tasks in close cooperation with project managers, clients, and cross-functional teams.  
• Are comfortable balancing technical execution, project coordination, and client-facing work.
• Communicate clearly — whether presenting technical data, leading design reviews, or partnering with clients.
• Embrace continuous learning, innovative advancements, and collaboration across engineering fields.  
• Value a culture that prioritizes safety, craftsmanship, and long-term customer partnerships.

What You Will Do

As a Mechanical Engineer focused on Machine Design, you will:

• Plan, coordinate, and complete engineering projects ranging from single-machine design to multi-disciplinary automation systems.
• Act as a technical specialist, applying advanced engineering theories, design principles, and guidelines.
• Work independently to research challenges, develop innovative solutions, and ensure engineering accuracy.
• Engage in and contribute to HSE initiatives, encouraging safety-first decisions during both development processes and on-site operations.  
• Stay up to date with industry trends, emerging technologies, and design methodologies.
• Prepare multi-disciplinary proposals, cost estimates, and risk assessments.
• Develop detailed project plans and maintain schedules using project management tools.
• Participate in client meetings and internal design reviews to ensure technical alignment and quality.
• Create and maintain design standards, perform engineering calculations, and oversee drawing sets.
• Build strong client relationships by understanding organizational needs and key decision drivers.
• Support business development efforts, including technical input for proposals and capabilities discussions.
• Travel occasionally to client sites, fabrication shops, and project locations as needed.

What You Bring

• Bachelor’s degree or equivalent experience in Mechanical Engineering or a related field required.
• 5 years of progressive machine design experience, including custom tooling, automation elements, robotics, sensors, and servo systems.
• 5 years using SolidWorks for modeling, assemblies, and machine design.
• Experience with SolidWorks FEA/CFD tools strongly preferred.
• P.E. license or eligibility strongly preferred.
• Ability to produce PFDs, P&IDs, and other visual documentation for machine/process communication.
• Strong knowledge of engineering design principles and project management methodologies.
• Proficiency with Microsoft Project, Deltek Vision, or similar tools.
• Excellent analytical skills, problem-solving ability, and attention to detail.
• Excellent communication abilities, able to collaborate with clients, vendors, and cross-functional teams.

Why Join Re:Build?

• Employee Ownership — share in our growth and long-term success.
• Impactful Work — develop machinery and automation solutions that power major U.S. industries!
• Growth Opportunities — collaborate across fields and gain exposure to a wide range of technologies.
• Innovative Environment — work with modern design tools and powerful engineering methods.
• People-First Culture — supportive leadership, a collaborative team, and meaningful career development.
• Compensation Range: Annual salary for this position is expected to be between $81,000 to $101,000, plus participation in our annual bonus plan and long term incentive plan. 

Re:Build Manufacturing is proud to be an Equal Employment Opportunity and Affirmative Action employer. We embrace individuals from all backgrounds, identities, and experiences.  If you require reasonable accommodation during the application process, contact accommodations.ta@ReBuildmanufacturing.com or call 617-909-6275.