Commissioning Project Engineer, Data Centers

About Fluidstack We exist to make humanity more free. For most of human history, you farmed or you starved. Technology gave people more time for the things they wanted to do, instead of things they had to do. Powerful AI will be the biggest lever for human choice we've ever built - but only if models are aligned with what humanity actually wants. There are groups building AI who don't share these goals. Whoever deploys frontier compute infrastructure fastest will decide whether AI expands human freedom or shrinks it. We're singularly focused on delivering 10 to 100s of GWs of compute faster than anyone else, rethinking every layer of the stack. We acquire power, design and build data centers, and operate them - with teams spanning hardware and software. Speed and scale are our key differentiators. Come be a part of building civilization-scale infrastructure for AI. We hire people who care deeply about this problem space. If that is you, please apply! About the Role The Commissioning Project Engineer is responsible for planning, coordinating, and executing commissioning activities for data center and mission critical facility projects, with a primary focus on Factory Acceptance Testing (FAT) and the development, review, and approval of project test procedures. This role ensures all critical infrastructure systems — from power and cooling to controls and monitoring — are fully validated against design intent before energization and handover, protecting uptime, reliability, and client SLA commitments. Responsibilities Factory Witness Testing (FWT) Coordination Plan, schedule, and coordinate Factory Acceptance Tests (FATs) and Factory Witness Tests (FWTs) for mission critical equipment including UPS systems, generators, switchgear, PDUs, transformers, precision cooling units (CRACs/CRAHs/CDUs), BMS/EPMS controllers, and fire suppression systems Review and approve vendor-submitted FAT procedures prior to testing, ensuring alignment with project specifications, Uptime Institute Tier standards, and client-specific requirements Develop and distribute FAT schedules, witness notifications, and travel logistics for internal teams, client representatives, and third-party commissioning agents (CxAs) Attend and lead witness tests at manufacturer facilities, documenting results, managing non-conformance reports (NCRs), and driving punch list resolution Ensure all test data packages, certificates of conformance, and factory test reports are complete and submitted per project documentation requirements Coordinate re-test scheduling with vendors where equipment fails to meet acceptance criteria, managing impacts to overall project schedule Test Procedure Review & Development Lead the review, development, and approval of Level 1 through Level 5 commissioning test procedures across all critical systems, including electrical distribution, standby power, mechanical cooling, controls, DCIM/BMS integration, and security/access systems Ensure procedures align with ASHRAE, TIA-942, Uptime Institute, and applicable NEC/NFPA standards, as well as owner-specified commissioning requirements Coordinate interdisciplinary procedure reviews with MEP engineers, IT infrastructure teams, controls specialists, and HSE representatives Maintain a master commissioning procedure register, tracking revision status, approval workflows, and issue-for-construction releases Issue approved procedures to field commissioning teams, providing technical clarification and support during integrated systems testing (IST) and critical load testing Identify and resolve conflicts between test procedures, engineering deliverables, and equipment submittals Project Coordination & Reporting Track and report commissioning progress against project milestones, including shell & core readiness, critical path mechanical and electrical completions, and white space readiness Maintain commissioning databases, test records, and punch lists in commissioning management platforms (e.g., Cx Alloy, ICAT, Procore) Coordinate with procurement and equipment expediting teams to align vendor FAT dates with construction and fit-out schedules Participate in commissioning readiness reviews, pre-TAB meetings, and critical power energization planning Support the development of Operations & Maintenance (O&M) documentation and system turnover packages Liaise with hyperscale, colocation, or enterprise end-users during witness testing and integrated system validation Basic Qualifications Bachelor's degree in Electrical, Mechanical, or Building Services Engineering (or equivalent technical qualification) 4–8 years of experience in commissioning or project engineering, with at least 2 years in data center, colocation, or mission critical environments Demonstrated experience coordinating FATs for mission critical equipment (UPS, generators, switchgear, cooling systems) and developing multi-level commissioning test procedures Working knowledge of Uptime Institute Tier classification methodology, TIA-942, ASHRAE TC 9.9, and NFPA 70/72/75/76 Strong understanding of single-line diagrams, electrical distribution architecture, mechanical schematics, sequence of operations, and BMS/EPMS control logic Familiarity with data center metrics including PUE, redundancy configurations (N, N+1, 2N), and critical load testing protocols Proficiency in commissioning management software and document control platforms Willingness to travel domestically and internationally for vendor FATs and site commissioning support Preferred Qualifications Experience on hyperscale, colocation, or enterprise data center projects (50MW+) Certified Commissioning Professional (CCP), ACG Cx credentials, or equivalent Experience with generator paralleling systems, medium voltage switchgear, static transfer switches (STS), and UPS systems Exposure to liquid cooling technologies including rear-door heat exchangers, direct liquid cooling (DLC), and immersion cooling Benefits Competitive total compensation package (cash + equity). Retirement or pension plan, in line with local norms. Health, dental, and vision insurance. Generous PTO policy, in line with local norms. The base salary range for this position is $150,000 - $220,000 per year, depending on experience, skills, qualifications, and location. This range represents our good faith estimate of the compensation for this role at the time of posting. Total compensation may also include equity in the form of stock options. 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 View email address on click.appcast.io 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.