Sr. Mechanical Design Engineer

At JetCool a Flex company were at the forefront of liquid cooling innovation delivering advanced solutions that empower our partners in AI and high-performance computing. United by a shared purpose our teams are pushing the limits of whats possible and tackling complex challenges.

A career at JetCool offers the opportunity to make a real impact by helping build smarter more sustainable data were not just advancing technology were redefining cooling standards to create a more sustainable tomorrow.

Job Summary

To support our extraordinary teams who build great products and contribute to our growth were looking to add a Sr. Mechanical Design Engineer located in Littleton MA.

Reporting to the Mechanical Development Associate Principal Engineer the Sr. Mechanical Design Engineer will take full ownership of converting concepts and SolidWorks CAD models into robust manufacturable and productionready designs. This role is responsible not just for creating models but for expertly detailing SolidWorks designs into clear complete and executable documentation that enables lowcost highquality repeatable manufacturing.

What a typical day looks like:

• Take endtoend ownership of detailed mechanical design from early concepts through fully released productionready SolidWorks models and documentation.
• Expertly detail SolidWorks parts and assemblies converting conceptual designs into fully defined geometry with proper tolerances fits interfaces and manufacturing intent.
• Own tolerance stackups GD&T application and fit/function strategy ensuring designs assemble reliably and perform as intended in production.
• Produce highquality engineering drawings (machined parts sheet metal weldments and assemblies) using ASME Y14 and applicable industry standards with clarity suitable for external suppliers.
• Own weldment modeling and drawings in SolidWorks including joint design weld symbols fabrication notes and distortion considerations.
• Select and specify materials seals gaskets fasteners and finishes balancing performance manufacturability durability cost and supplychain constraints.
• Build and maintain complete documentation packages including SolidWorks models drawings specifications and structured BOMs with accountability for accuracy and completeness.
• Define and own BOM structure and product hierarchy supporting manufacturing sourcing configuration control and lifecycle management.
• Lead design reviews with an ownership mindset proactively identifying tolerance risk manufacturability issues assembly challenges and cost drivers.
• Partner closely with manufacturing quality and suppliers to resolve build issues clarify documentation and continuously improve design robustness and producibility.

The experience were looking to add to our team:

• 8 years of experience in detailed mechanical design with direct ownership of productionreleased hardware.
• Expert proficiency in SolidWorks including advanced part modeling assemblies configurations and drawing creation with manufacturingready detail.
• Demonstrated mastery of GD&T tolerance analysis and precision detailing applied intentionally to real manufacturing and assembly constraints.
• Extensive experience creating clear unambiguous engineering drawings for machined parts sheet metal weldments and complex assemblies.
• Strong working knowledge of ASME drawing standards and common manufacturing best practices.
• Proven experience detailing fabricated and welded structures including weld definitions callouts and fabrication clarity.
• Deep understanding of manufacturing processes (machining sheet metal welding precision assembly) and how SolidWorks design decisions affect cost quality and yield.
• Experience selecting and applying materials seals gaskets and hardware in demanding mechanical systems.
• Strong experience developing and maintaining structured BOMs part numbering schemes and controlled documentation sets.
• Demonstrated ownership mentalitytaking responsibility for design quality manufacturability cost and downstream success through production.
• Clear communicator who can effectively work with engineers manufacturing teams and suppliers to drive issues to closure.

BO18

What youll receive for the great work you provide:

• Full range of medical dental and vision plans
• Life Insurance
• Short-term and Long-term Disability
• Matching 401(k) Contributions
• Vacation and Paid Sick Time
• Tuition Reimbursement

Job Category

Is Sponsorship Available

JetCool is an Equal Opportunity Employer and employment selection decisions are based on merit qualifications and abilities. We do not discriminate based on: age race religion color sex national origin marital status sexual orientation gender identity veteran status disability pregnancy status or any other status protected by law. Were happy to provide reasonable accommodations to those with a disability for assistance in the application process. Please email and well discuss your specific situation and next steps (NOTE: this email does not accept or consider resumes or applications. This is only for disability assistance. To be considered for a position at JetCool you must complete the application process first).