Commissioning Engineer, Data Center Cooling Systems

About Fluidstack

At Fluidstack, we’re building the infrastructure for abundant intelligence. We partner with top AI labs, governments, and enterprises - including Mistral, Poolside, Black Forest Labs, Meta, and more - to unlock compute at the speed of light.

We’re working with urgency to make AGI a reality. As such, our team is highly motivated and committed to delivering world-class infrastructure. We treat our customers’ outcomes as our own, taking pride in the systems we build and the trust we earn. If you’re motivated by purpose, obsessed with excellence, and ready to work very hard to accelerate the future of intelligence, join us in building what's next.

About The Role

This role is responsible for leading Data Center CDU Installations and Commissioning in support of deployment deliverables, serving as the primary technical expert for liquid cooling systems throughout all commissioning phases (Level 1–5). You will perform and oversee installation, startup testing, and validation of cooling distribution units while acting as Owner Representative across multiple sites, coordinating with contractors, vendors, commissioning agents, and operations teams to develop and execute test scripts (FPTs, ISTs). You will also manage site inspections, safety enforcement, documentation, and issue tracking, and ensure a smooth handover to operations teams with full training and commissioning reports upon project completion.

Responsibilities

• Manage all commissioning phases for cooling distribution units. (Level 1-5)

• Perform/oversee detailed installation, commissioning & startup testing, and validation of data center liquid cooling systems.

• Stakeholder Coordination: Act Owner Representation for contractors and vendors for multiple sites during deployment.

• Testing & Verification: Work with Commissioning Agents and Operations to develop, review and support execution test scripts (FPTs, ISTs) to confirm systems meet design and operational requirements.

• Documentation: Monitor and ensure maintenance of records, tracking issues, test results, and CDU commissioning reports.

• Site Management: Conduct inspections, enforce safety, track progress, and resolve issues on-site.

• Handover: Provide technical support, training, and handover documentation to operations teams post-commissioning, ensuring all systems are complete and ready for service.

Basic Qualifications

• In-depth knowledge of Installation, testing, and commissioning of cooling systems in data centers, with emphasis on high-density liquid cooling products, including chilled water loops, and process cooling.

• Ability to manage multiple tasks simultaneously, work with limited supervision and manage installing teams on day-to-day tasks.

• Creating and managing testing protocols and system documentation.

• Education: Technical Degree in Mechanical Systems, Bachelor's in Mechanical Engineering, or related field. (Bachelor’s Preferred)

• Experience: 5+ years in IT, data center operations, mechanical systems, HVAC, or liquid cooling for critical facilities/data centers

• Knowledge & experience with ASHRAE or BCxA commissioning guidelines preferred.

Preferred Qualifications

• Testing & Validation: Conducting pre-site testing and on-site functional testing, electrical checks, and mechanical adjustments.

• Troubleshooting: Diagnosing and resolving issues during startup and providing ongoing system support.

We are committed to pay equity and transparency.

Fluidstack is an Equal Employment Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, sexual orientation, gender identity, disability and protected veterans’ status, or any other characteristic protected by law. Fluidstack will consider for employment qualified applicants with arrest and conviction records pursuant to applicable law.

You will receive a confirmation email once your application has successfully been accepted. If there is an error with your submission and you did not receive a confirmation email, please email [email protected] with your resume/CV, the role you've applied for, and the date you submitted your application-- someone from our recruiting team will be in touch.