Sr. Mechanical Design Engineer

About the role

RheoSense, Inc. (RheoSense) is a leading scientific instrumentation company specializing in high-precision microfluidic viscosity measurement technology. Our innovative VROC® platform is trusted by researchers, engineers, and scientists across biotechnology, pharmaceuticals, materials science, and advanced manufacturing. We are committed to delivering accurate, reliable, and user-friendly measurement solutions that empower our customers to accelerate discovery, improve product performance, and drive scientific advancement. At RheoSense, we foster a collaborative, fast-moving environment where innovation, continuous improvement, and customer focus guide everything we do. As we continue to grow, we’re looking for talented individuals who are excited to contribute to cutting-edge technology and make a meaningful impact in the scientific community.

Responsibilities

• Design all advanced instrument parts and assemblies using SOLIDWORKS to meet specifications and for Design for Manufacturability (DFM) on integrated microfluidics, pneumatic, and liquid handling systems.
• Create test fixtures for Design of Experiments (DOE) as well as Verification, and Validation processes.
• Perform experimental testing and analyze resulting data.
• Lead project teams in the preparation of engineering inputs, cost estimates, schedules, and project management.
• Prepare for, and participate in, comprehensive design reviews.
• Evaluate performance at the component and system levels via both SOLIDWORKS modeling and hands-on experimental methods.
• Develop and execute component reliability and qualification tests.
• Develop quality procedures to support the manufacturing team in pilot builds and troubleshooting during production.
• Write engineering change orders on existing products to improve designs and correct problems.
• Meet deadlines, sustain superior personal task management, and deliver consistent high performance.
• Perform other department-specific duties as assigned.

Requirements

• Bachelor's degree in Mechanical Engineering or a closely related engineering discipline.
• Minimum of 5 years of professional mechanical engineering experience.
• Recent, hands-on experience using SOLIDWORKS for mechanical design, assemblies, and engineering documentation.
• Ability to read, analyze, and interpret technical drawings, specifications, and engineering documentation.
• Strong analytical, troubleshooting, and problem-solving skills.
• Excellent written and verbal communication skills.
• Demonstrated ability to work effectively in cross-functional teams.
• Ability to thrive in a fast-paced, high-growth environment.

Qualifications

• Experience developing advanced instrumentation, analytical systems, or complex electromechanical products.
• GD&T (Geometric Dimensioning & Tolerancing) experience.
• Experience with micro injection molding processes and design.
• Experience designing electrical connectors, motion control systems, chassis, and valve-based systems.
• Experience with laboratory automation systems.
• Experience developing products that incorporate microfluidic components.
• Demonstrated technical leadership and project ownership from concept through prototype and production.
• Experience supporting manufacturing, testing, and product commercialization activities.