Location: Riyadh or Eastern Province, Saudi Arabia

Start: ASAP

Language: Arabic & English

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

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 Data Center MEP Design Engineer to lead the design, implementation, and optimization of end-to-end MEP systems - electrical, mechanical, and fire protection - in high-density environments. The objective is to ensure a safe, reliable, and scalable power and cooling infrastructure: from substation/transformer systems, MV/LV distribution, busbars and rack PDUs, to precision cooling, chilled-water pipe loops, CDUs, and liquid-cooling solutions such as TCS; as well as fire detection and suppression, and integration with BMS/EMS. The ideal candidate brings a strong background in mission-critical MEP infrastructure, optimizes metrics such as PUE/WUE, and thrives in fast-paced, multidisciplinary environments, supporting mission-critical workloads and next-generation computing platforms.

What You’ll Do Leadership & Scope

• Lead the MEP discipline: planning, technical quality, budgets/schedules, and team mentorship.
• Serve as the technical face of the company with clients: defend the design, explain the what/how, and coordinate workshops, design reviews, and value engineering.
• Manage internal/external stakeholders, RFP/ER requirements, scope changes, and risks.

MEP Design, Integration & Delivery (Electrical/Mechanical/Fire Protection/Controls)

• Define the end-to-end MEP architecture: substation/transformer, MV/LV, busbars/PDUs; precision HVAC, chilled-water networks, CDUs and liquid cooling (TCS/DLC/RDHx); detection and suppression; BMS/EMS/DCIM; sequences of operation.
• Size capacity and resilience (N+1/2N), select protection devices and curves, and align electrical distribution with cooling and operational requirements.
• Set thermal strategies and setpoints (e.g., dew-point/condensation control), hydraulics (pressure drop, NPSH), and economization.
• Embed codes and HSE (IEC/IEEE/NFPA/ASHRAE/EN/local, LOTO, accessibility, maintainability).
• Plan and execute FAT/iFAT/SAT and Cx Levels 1–5; integrated testing and acceptance criteria; produce as-builts, O&M, and training plans.

Performance Optimization & Reliability

• Monitor power quality and thermal performance; data-driven analysis for PUE/WUE and voltage/temperature regulation.
• Lead RCA (root-cause analysis) and corrective actions; propose design/operational improvements to boost reliability, maintainability, and scalability.

Compliance & Documentation

• Ensure conformity with applicable codes/standards and best practices.
• Maintain technical documentation: design reports, requirements matrices, test plans, validation reports, and O&M manuals.

OEM Collaboration & Commercial Support

• Coordinate with OEMs (UPS, generators, transformers, chillers, CDUs, TCS/DLC, detection/suppression, BMS/EMS) from specification through validation.
• Support technical proposals, SOWs, RFP clarifications, and techno-economic comparisons.

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

• Attractive compensation package refleting your expertise and experience.
• 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.