Senior Mechanical Engineer - Marietta, OH

Mechanical Engineer (ULT)As part of the Thermo Fisher Scientific team, you'll discover meaningful work that makes a positive impact on a global scale. Join our colleagues in bringing our Mission to life every single day to enable our customers to make the world healthier, cleaner and safer. We provide our global teams with the resources needed to achieve individual career goals while helping to take science a step beyond. Whether our customers are accelerating life sciences research, solving complex analytical challenges, improving patient diagnostics and therapies, or increasing productivity in their laboratories, we are here to support them.DESCRIPTION: Join our engineering team, where you'll help drive innovation in the development of sophisticated scientific instruments and laboratory equipment. As Mechanical Engineer (ULT), you will design, develop, and sustain cascade refrigeration systems supporting Thermo Fisher's cold storage and ultra-low temperature (ULT) product portfolio. In this hands-on role, you will collaborate with other engineers and technicians to deliver high-performance, energy-efficient, and compliant cold storage solutions. You will partner closely with NPD design leadership and cross functional peers in Product Management, Controls Engineering, Quality, and Regulatory to define mechanical systems, maintain traceability, and ensure products meet customer, performance, and regulatory expectations throughout the product lifecycle.WHAT YOU WILL DO:Design and develop mechanical systems used in ULT freezers and cold storage platforms.Develop specifications for system-level, subsystem and component performance.Develop and execute test plans to validate the performance of newly developed mechanical systems by utilizing design for reliability tools and performance sensitivity analysis.Design mechanical systems that meet customer requirements, time to market commitments and that are within the target cost of the projects.Create modular, scalable, and reusable solutions across multiple product platforms.Simulation, Modeling & InnovationAnalyze the structural behavior of the mechanical systems aided by Computer Aided Engineering (CAE) tools for component selection and overall mechanical system design.Complete design trade studies using modeling and empirical data to optimize system performance and energy consumption.Participate in advanced development initiatives to mature new technologies as assigned.Product Development & Cross-Functional CollaborationCollaborate with refrigeration, electrical, and controls engineering teams through all phases of the toll-gate NPD process.Partner with manufacturing and operations teams to ensure Design for Assembly (DfA) and Design for Manufacturing (DfM).Support products manufactured across multiple global facilities.Contribute to component, sub-system, and system-level technology roadmaps.Requirements, Compliance & TraceabilityComplete verification activity to confirm traceability from customer and regulatory requirementsEnsure systems are designed for compliance to meet regulatory and certification requirements (e.g., UL, IEC, FDA, CE, CSA, Energy Star).People and CultureEngage in a culture of safety, quality, accountability, and continuous improvement.Travel: Up to 10% domestic travel.REQUIREMENTS:EducationBachelor's degree in mechanical engineering, systems engineering, chemical engineering, physics, or related disciplineMaster's degree preferredExperience5+ years of hands-on experience developing mechanical systems.Experience designing systems with sheet metal, engineered plastics, and foams, low to ultralow temperature applications in cold storage or HVAC/R products preferredExperience with structural modeling and simulation (CAD / FEA)Experience analyzing empirical test data to guide design decisionsFamiliarity with data acquisition systems, automated testing, and technical documentationFamiliarity with Lean / PPI methodologies and continuous improvement systemsKnowledge, Skills, and AbilitiesFundamental understanding of mechanical systems for refrigeration/HVACStrong analytical, problem-solving, and root-cause analysis skillsExperience using engineering tools such as CAD (SolidWorks preferred), PLM, and Microsoft OfficeCompetency in simulation or other predictive design tools for design optimizationStrong communication and cross-functional collaboration skillsExcellent organizational skills in a fast-paced, multi-project environmentCommitment to safety, quality, and operational excellence