Senior Mechanical Engineer, Material Handling Equipment

3MD Inc. • Redmond, WA

3d • Onsite

About The Position

The Senior Mechanical Engineer leads mechanical design for automation and material-handling projects, integrating OEM conveyor systems, inspection and labeling subsystems, and custom mechanical solutions into complete, high-performance systems. This role develops mechanical architecture from concept through final drawing release, works closely with cross-functional engineering teams, and contributes to system performance, layout optimization, and innovative design approaches. The ideal candidate is a strong mechanical designer and an active contributor who welcomes brainstorming, iteration, and concept development. This person helps create solutions that stand out in the market.

Requirements

• Bachelor’s degree in Mechanical Engineering or related field.
• Strong communication, collaboration, and problem-solving skills.
• Expert-level CAD (e.g., SolidWorks, Inventor, Onshape) modeling and mechanical system design capability.
• Strong understanding of process flow and automation equipment.
• Basic understanding of how mechanical systems interface with automation controls, including sensor placement, camera mounting, field of view considerations, encoder usage, and motor-driven actuation.
• Ability to evaluate system throughput, material flow, and performance and contribute ideas that improve overall efficiency.
• Demonstrated ability to work with controls, software, and vision engineers to develop integrated and innovative system concepts.
• Experience leading mechanical projects and supporting commissioning/startups.
• Experience with release management with PDM/PLM tools (e.g., SolidWorks PDM, Windchill, Arena)
• Competence with engineering analysis tools (FEA, mechanism simulation, etc.).
• Proven advanced troubleshooting and system optimization capability.
• Ability to develop mechanical standards, best practices, and documentation.
• Leadership, mentoring, and communication skills.

Responsibilities

• Lead mechanical design and integration of material-handling and automation subsystems.
• Develop mechanical layouts, frames, guarding, mechanisms, and modular equipment interfaces
• Design transitions between conveyors and other equipment and produce fabrication-ready drawings for these solutions.
• Integrate subsystems from multiple vendors and ensure mechanical interfaces are correct and support cohesive system performance.
• Translate system requirements into clear mechanical specifications for internal teams and external partners.
• Understand throughput requirements and contribute mechanical solutions that improve flow and reduce bottlenecks.
• Participate in concept development, brainstorming, early-stage modeling, layout iteration, and process refinement prior to final design.
• Evaluate mechanical concepts and contribute improvements that make systems faster, smaller, stronger, more reliable, and easier to build.
• Create fabrication-ready prints with correct tolerances, materials, and manufacturing notes.
• Coordinate with fabrication partners to clarify design intent and support manufacturability.
• Lead design and implementation of large-scale mechanical systems and automated equipment.
• Architect mechanical layouts, frames, guarding, mechanisms, and modular platforms.
• Perform advanced troubleshooting on complex or intermittent mechanical failures.
• Develop mechanical design standards, best practices, and documentation requirements.
• Train, mentor, and support engineers and technical staff.
• Work with vendors, review proposals, and approve technical deliverables.
• Ensure system reliability, manufacturability, and compliance with technical specification guidelines.

Benefits

• U.S.-based employees have access to medical, dental, and vision insurance, a 401(k) plan and company contribution, short-term and long-term disability coverage, basic life insurance, and wellbeing benefits, among others.
• U.S.-based employees also receive, per calendar year, up to 6 scheduled paid holidays.
• Additionally, eligible hourly/non-exempt and exempt employees accrue up to 112 hours of PTO based on years of service and may annually take up to 8 hours of paid volunteer time.
• Additional paid sick leave is also provided if required by state or local law.

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level
• Number of Employees: 11-50 employees