What You'll Do- Serve as Lambda's mechanical field engineering owner from construction completion through commissioning, cooling-system bring-up, and initial compute loading.
- Perform site walkdowns to verify installed mechanical systems against approved designs, P&IDs, specifications, submittals, and Lambda standards.
- Validate equipment installation, piping, supports, valves, instrumentation, insulation, maintenance access, system labeling, and flow direction.
- Confirm that redundancy, isolation boundaries, failure domains, bypasses, drains, vents, and maintenance provisions function as designed.
- Inspect central plants, chillers, cooling towers, dry coolers, pumps, heat exchangers, CRAHs, CDUs, liquid-cooling loops, and associated water systems.
- Review pressure-test, flushing, cleaning, filtration, water-treatment, balancing, and equipment-startup results.
- Identify installation deficiencies, design conflicts, and operational risks; document punch-list items and drive them through closure.
- Witness factory acceptance testing, site acceptance testing, functional performance testing, and integrated systems testing.
- Develop and review startup plans, MOPs, SOPs, EOPs, commissioning scripts, and mechanical safety controls.
- Troubleshoot flow, pressure, temperature, air-removal, fouling, water-quality, equipment, and controls issues during system bring-up.
- Confirm cooling capacity, water quality, control stability, redundancy, and monitoring are ready before GPU infrastructure is placed under load.
- Coordinate with design engineers, general contractors, mechanical trades, equipment manufacturers, commissioning agents, operations, and HPC deployment teams.
- Validate as-built documentation, test reports, equipment settings, commissioning records, and turnover packages before operational handoff.
- Capture field lessons and incorporate them into Lambda's design standards, construction requirements, and site-validation playbooks.
- Mentor other engineers and provide senior technical leadership during high-risk startup and commissioning activities.
You- Have significant experience delivering, commissioning, or operating mechanical systems in data centers, mission-critical facilities, central plants, or industrial environments.
- Understand hydronic systems, heat transfer, pumping, heat exchangers, heat rejection, air cooling, and liquid cooling.
- Can interpret P&IDs, equipment submittals, mechanical layouts, control sequences, test reports, and construction documentation.
- Have hands-on experience with site inspections, pressure testing, flushing, water treatment, testing and balancing, equipment startup, or commissioning.
- Understand mechanical redundancy, failure isolation, thermal ride-through, maintainability, and operational risk.
- Can determine whether installed systems are ready to safely support high-density compute loads.
- Understand construction safety, lockout/tagout, stored-energy hazards, and safe startup practices.
- Can make sound technical decisions in the field, escalate critical issues, and coordinate corrective work under schedule pressure.
- Communicate clearly with construction teams, engineers, vendors, operators, and senior stakeholders.
- Are willing to travel extensively and spend extended periods at active construction and commissioning sites.
- Hold a bachelor's degree in mechanical engineering or equivalent practical experience.
Nice to Have- Experience commissioning hyperscale, colocation, HPC, or AI data centers.
- Experience supporting direct-to-chip liquid cooling, CDUs, technology cooling-water loops, or multi-megawatt GPU deployments.
- Knowledge of coolant chemistry, glycol systems, filtration, flushing, passivation, corrosion control, and materials compatibility.
- Familiarity with Level 1-5 commissioning and integrated systems testing.
- Experience using Procore, Bluebeam, commissioning-management platforms, or building-automation trend data.
- Experience investigating cooling failures and leading root-cause analysis.
- Professional Engineer licensure, commissioning certification, or testing-and-balancing certification.
Salary Range InformationThe annual salary range for this position has been set based on market data and other factors. However, a salary higher or lower than this range may be appropriate for a candidate whose qualifications differ meaningfully from those listed in the job description.
