
We enable next generation cooling and automation for data & energy-intense environments by integrating our pristine, highly-efficient & sustainable technologies. Solving the challenges of today and powering the use cases of the future. Submer helps enable datacenters that make sense through products, platforms, APIs, processes and installations that will move hyperscalers, colocation and huge industries to new levels of efficiency and innovation.

We enable next generation cooling and automation for data & energy-intense environments by integrating our pristine, highly-efficient & sustainable technologies. Solving the challenges of today and powering the use cases of the future. Submer helps enable datacenters that make sense through products, platforms, APIs, processes and installations that will move hyperscalers, colocation and huge industries to new levels of efficiency and innovation.
Core product: Liquid immersion cooling platforms (SmartPod family, SmartPod EXO) for high-density datacenters
Founded / HQ: 2015; Barcelona
Recent raise: $55.5M growth round (announced Oct 2024) led by M&G
Total funding (reported): $~109.7M (reported total funding amount)
Employees (reported): 148
Datacenter cooling and infrastructure for high-density, energy-intensive computing
2015
IT Services and IT Consulting
55,500,000
Reported post-money valuation ~ $500M for the round
34,000,000
Reported round with Planet First Partners as lead investor; existing shareholders listed include Norrsken VC, Alma Mundi Ventures and Tim Reynolds
12,000,000
Earlier financing reported around this amount with participation from Tim Reynolds
“Institutional and impact investors including M&G, Planet First Partners, Norrsken VC, Mundi/Alma Mundi Ventures and individual investors such as Tim Reynolds”
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Location: Tarragona (Spain)
Start: ASAP
Type of Contract: Full Time / Permanent
About Submer Submer designs and delivers end-to-end AI datacenter infrastructure built around industry-leading liquid cooling.
We help organizations scale AI beyond the limits of traditional datacenters by enabling higher density, greater efficiency and lower environmental impact – accelerating time-to-AI from first deployment to full production
We are seeking a Data Center Manager to lead and manage the physical infrastructure of our AIaaS (AI-as-a-Service) datacenters. This role will be responsible for the deployment and operation of high-density AI datacenters, ensuring optimal power, cooling, and networking for AI-optimized compute clusters.
This position requires deep expertise in datacenter infrastructure management, energy efficiency, sustainability, and high-performance core networks. You will oversee the Datacenter Construction and Operations teams to drive building out and operational excellence. The role also involves site selection, expansion planning, and partnerships with colocation providers to ensure cost-effective and scalable AI infrastructure.
What You’ll Do Datacenter Infrastructure Management:
Power & Cooling Optimization
Implement and optimize waterless, energy-efficient cooling systems, including:
Operate, maintain, and optimize energy‑efficient cooling systems
Liquid cooling solutions (direct-to-chip, cold plate, rear-door heat exchangers).
High-efficiency HVAC and airflow management for maximum energy efficiency.
Operate, maintain, and test electrical distribution systems (MV/LV, UPS, PDUs, generators, grid interconnects), ensuring redundancy, safe switching operations (LOTO), and adherence to operational standards.
Optimize PUE (Power Usage Effectiveness) and drive cost-efficient energy consumption.
Oversee waste heat recovery initiatives to support sustainability goals.
Networking & Physical Infrastructure
Ensure high-bandwidth, low-latency networking to support multi-datacenter AI workloads, including:
Dark fiber connectivity between datacenters for high-speed AI workload distribution.
Redundant, scalable network architectures to prevent bottlenecks and failures.
Peering, BGP routing, and IP assignment strategy for core datacenter networks.
Implement advanced DCIM (Datacenter Infrastructure Management) tools for:
Real-time monitoring of power, cooling, and environmental conditions.
Predictive maintenance and automated issue detection.
Operational Reliability & Compliance
Cost & Vendor Management
What You’ll Need
What We Offer
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.
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. 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.