Senior Mechanical Architect – Liquid Cooling Systems

Location & work modality: Houston TX (Hybrid)

Start: ASAP

About Submer

Submer enables sustainable digital infrastructure by providing cutting-edge liquid cooling solutions for data centers. Our technology is designed to reduce environmental impact while improving performance and efficiency. We are a purpose-driven company with a passion for innovation and a growing global presence.

What impact you will have

We are seeking a Senior Mechanical Engineer to lead the design and integration of advanced liquid-cooled rack systems for large-scale AI and HPC deployments. This role is pivotal in defining rack-level mechanical architectures supporting high power compute racks ensuring performance manufacturability and serviceability across global data center environments.

The ideal candidate has a strong background in system-level mechanical design and cross-functional collaboration with suppliers and internal product teams.

What youll do

• Define and lead mechanical architecture development for liquid-cooled racks including manifolds server interfaces and facility connections.

• Drive system- and rack-level integration ensuring compliance with performance safety structural shock/vibration seismic and reliability targets.

• Partner with rack suppliers and internal design teams to co-develop mechanical designs aligned with company standards for performance usability and cost.

• Perform or coordinate thermal-hydraulic analysis to optimize loop design flow distribution and cooling efficiency.

• Own CAD design documentation and release of mechanical components and assemblies.

• Lead engineering validation activities including test plan creation prototype builds and root-cause analysis of design or integration issues.

• Conduct design reviews to ensure manufacturability and compliance with mechanical standards and best practices (DFM DFR and serviceability).

• Collaborate with system architecture electrical and manufacturing engineering teams to deliver a balanced and highperformance rack solution.
  

What youll need

• BS or MS in Mechanical Engineering or related field with 7 years of experience in thermal or mechanical design for high-density electronics or data center systems.

• Proficiency in thermal-fluid systems design mechanical packaging and system-level integration.

• Strong experience with CAD tools (Creo NX or SolidWorks) and simulation tools for thermal flow or structural analysis (Flotherm ANSYS or equivalent).

• Proven success collaborating with external rack or cooling solution suppliers managing specs reviews and validation deliverables.

• Familiarity with liquid cooling infrastructure in data centers including CDU manifold facility water and interconnect standards.

• Excellent communication and project leadership skills across cross-functional engineering disciplines.

• Experience developing highpower compute rack solutions or liquid cooling architectures in OEM or hyperscale environments.

• Knowledge of heat transfer and fluid mechanics as applied to electronic cooling solutions.

• Experience with material compatibility system reliability and environmental compliance requirements for global deployment.

• Handson understanding of prototype build instrumented testing and system qualification processes.

Our job titles may span more than one job level. The actual base pay is dependent on a number of factors such as transferable skills work experience business needs and market demands.

What we offer

• Attractive compensation package refleting your expertise and experience.

• Medical Insurance Plan.

• 401k Employee volunteer contribution Plan.

• A great work environment characterised by friendliness international diversity flexibility and a hybrid-friendly approach.

• Youll be part of a fast-growing scale-up with a mission to make a positive impact offering an exciting career evolution.

Our Inclusive Responsibility

Submer is committed to creating a diverse and inclusive environment and is proud to be an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race color religion gender gender identity or expression sexual orientation national origin genetics disability age veteran status or any other protected category under applicable law.