Senior Mechanical Engineer

Location & work modality : Riyadh or Eastern Province, Saudi Arabia

Start : ASAP

Type of Contract : Full Time / Permanent

Eligibility : This position is open only to Saudi nationals, in line with Saudization requirements.

About Submer

At Submer, we are redefining how data centers are built, integrated, and operated, with sustainability, efficiency, and innovation at the core. 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 delivery of critical mechanical systems for high-density data centers, including both conventional air-cooled facilities and direct liquid cooling (DLC) environments. This role ensures the safe, efficient, and resilient operation of cooling and mechanical infrastructure . from chillers to fan wall, CRAC / CRAH units, CDU loops and rack-level liquid cooling; enabling next-generation compute platforms and mission-critical operations. The ideal candidate brings a proven track record in mechanical design for data centers and thrives in collaborative, fast-paced, multidisciplinary projects.

What you'll do

Mechanical System Design & Engineering

• Develop detailed designs for mechanical and cooling systems (chillers, cooling towers, CRAC / CRAH units, pumps, piping, valves, CDUs, FW, RDHx, and DLC loops).
• Define control strategies for primary and secondary cooling loops, supporting both air and DLC environments.
• Produce design documentation including schematics, layouts, hydraulic diagrams, specifications, and equipment schedules.
• Evaluate and select equipment suppliers, ensuring compliance with project performance requirements and client standards.

Thermal Performance & Analysis

Commissioning & Delivery

Compliance & Documentation

Collaboration & Expertise

What you'll need

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

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.

Department Design & Build Locations Saudi Arabia Remote status Temporarily Remote