Location & work modality: Houston, TX (Hybrid)

Start: ASAP

Type of Contract: Full Time / Permanent

Travel Requirements: up to 10%

About Submer Submer enables organizations scaling AI to overcome the limits of traditional datacenters across power, compute density and efficiency.

We design and deliver scalable, high-density AI datacenter infrastructure built around industry-leading liquid cooling, supporting everything from early AI deployments to full-scale production environments.

Acting as a full-stack delivery partner, Submer provides advisory, design, build and IT integration through a single point of accountability, working with a deep ecosystem of technology specialists. This end-to-end approach accelerates time-to-AI while reducing operational cost, complexity and environmental impact.

The result is AI infrastructure that performs today, scales predictably and avoids the redesigns and inefficiencies slowing the market down.

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 You’ll 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.

What You’ll 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.

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.
• You´ll 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.

From concept to deployment, we create liquid-cooled datacenters that scale smarter, run cleaner and cost less.