Mechanical Engineer

Mechanical Engineer – Liquid Cooling Systems (On‑Site Role)

Contract | On‑site | Competitive Pay (up to $75/hr)

We are seeking a highly skilled Mechanical Engineer with deep expertise in liquid‑cooling systems, diagnostics, and telemetry‑driven monitoring for high‑density compute environments. This role is on‑site at a major data‑center facility and requires hands‑on engagement with mechanical and cooling systems to ensure reliability, performance, and operational excellence. Some travel may be required for cross‑site alignment. Travel outside a 75‑mile round‑trip commute is reimbursable.

As the mechanical engineering lead for liquid‑cooling diagnostics and monitoring, you will:

• Lead detection, monitoring, alarm triage, and fault isolation for liquid‑cooling systems, including CDUs, HRUs, and rack‑level cooling loops.
• Respond to alarms and diagnose root causes using telemetry, logs, and system behavior.
• Perform on‑site validation of telemetry, dashboards, and fault‑detection logic.
• Identify and resolve gaps in telemetry completeness and accuracy.
• Analyze system trends to detect degradation early and recommend corrective action.
• Partner closely with mechanical, electrical, and site‑services teams to ensure smooth operational alignment.
• Define requirements for dashboards, KPIs, alerts, and monitoring tools.
• Work with developers and project managers to translate real‑world system behavior into telemetry‑driven detection logic.
• Provide consistent weekly updates outlining findings, risks, and improvements.
• Support ongoing efforts to enhance reliability, uptime, thermal performance, redundancy, and energy efficiency.

• Liquid Cooling Systems Expertise (3+ years)
• Hands‑on experience with CDUs, HRUs, direct‑to‑chip cooling, racks, and fluid‑cooling loops.
• Strong ability to assess cooling performance through flow, temperature, and pressure behavior.
• Telemetry Interpretation & Fault Diagnostics (3+ years)
• Skilled at root‑cause analysis using sensor data, logs, alarms, and telemetry streams.
• Able to detect early performance degradation using trend analysis and system correlations.
• Mission‑Critical Mechanical Engineering (8+ years)
• Experience in data centers, HPC facilities, or mechanically intensive environments.
• Deep understanding of mechanical, thermal, and facilities engineering for high‑availability systems.

• Liquid‑cooling systems operate with minimal downtime and zero customer impact.
• Dashboards and telemetry signals deliver fast and accurate diagnostics.
• Strong relationships formed with on‑site engineering teams.
• Early detection of mechanical or thermal degradations before operational disruption.
• Reliable translation of physical system behavior into monitoring logic and alerting requirements.
• Continual improvement in system reliability, efficiency, and monitoring capability.

• Deep hands‑on expertise in liquid cooling within mission‑critical environments.
• Exceptional diagnostic instincts and the ability to tie real‑world system behavior to telemetry.
• Strong collaboration across technical and operational teams.
• Ability to define, validate, and continuously refine detection logic and KPIs.
• Proactive mindset toward risk identification and system improvement.
• Clear, consistent communication.
• General mechanical engineering experience but limited exposure to liquid cooling.
• Follows existing processes but struggles to define improvements.
• Needs guidance to spot telemetry gaps or degradation patterns.
• Collaborates well but doesn’t build deep cross‑team technical trust.
• Relies heavily on documented procedures rather than independent diagnostic judgment.

Mechanical engineering, liquid‑cooling systems, telemetry, data analysis, fault isolation, diagnostics, facility engineering, monitoring tools, relationship building, cross‑functional collaboration.

This is a Contract position based out of Milwaukee, WI.

The pay range for this position is $60.00 - $75.00/hr.

Eligibility requirements apply to some benefits and may depend on your job classification and length of employment. Benefits are subject to…