Liquid Cooling Testing Supervisor

Wiwynn; El Paso (TX); On-site; USD 85,000 - 120,000; Full time

Job summary

Wiwynn is seeking a Liquid Cooling Testing Supervisor to lead daily server-level and rack-level test operations, ensuring safety, quality, and on-time output in a 24/7 LC test room.

The role emphasizes failure analysis, root-cause investigation, and analysis of test logs, with LC equipment experience and internal certification training provided. You will guide cross-functional teams and drive continuous improvements.

Qualifications

• Bachelor's degree in Engineering or related field.
• 3-5 years in electronics/server manufacturing or test ops, with 1-2 years supervising multi-shift teams.
• Server-level (L10) and rack-level (L11) test experience required.
• Strong failure analysis and test log experience required.
• Liquid cooling equipment experience preferred (LC certification provided).
• Programming/scripting skills (Python/Java/Bash/SQL).
• Familiarity with test bay infrastructure (power distribution, network).
• Excellent communication and decision-making skills.

Responsibilities

• Lead daily server-level (L10) and rack-level (L11) test operations in the LC test room.
• Drive failure analysis: first-level triage, 8D/5-Why root cause investigations, corrective actions.
• Own test log interpretation to distinguish hardware vs. test environment issues; reduce NTF/retests.
• Ensure test flow discipline, standard work, deviation control, and audit readiness.
• Monitor KPIs: FPY, cycle time, test-tail, utilization, throughput, downtime.
• Manage manpower, shift schedules, overtime, LC certification coverage for 24/7 ops.
• Support LC test infra readiness: CDUs, manifolds, cold plates, leak checks; spill response.
• Coordinate capacity planning, material readiness, and test bay infrastructure readiness.
• Lead escalations with Engineering, Quality, and Repair; cross-functional communication.
• Coach technicians/engineers on failure triage and log analysis; LC certification matrix.

Skills

Server test

Failure analysis

Test log analysis

Scripting: Python/SQL

Shift management

Bilingual EN/ES

Communication

Test bay infrastructure

Education

Bachelor's degree

Tools

MES systems

Excel

PowerPoint

Job description

The Liquid Cooling Testing Supervisor leads daily server-level (L10) and rack-level (L11) test operations in the Liquid Cooling (LC) test room, ensuring safety, quality, productivity, customer satisfaction, and continuous improvement. The role has a strong focus on failure analysis, test log interpretation, and test process discipline - driving root cause identification, yield improvement, and standard work compliance - while owning shift execution against daily output targets in a 24/7 multi-shift environment. Liquid cooling infrastructure knowledge is developed through internal certification training.

Key Responsibilities

• Lead daily server-level (L10) and rack-level (L11) test operations in the Liquid Cooling test room.
• Drive failure analysis: first-level triage of test failures, Pareto by failure mode and architecture level, root cause investigation with 8D/5-Why, and corrective action follow-up to closure.
• Own test log interpretation: read and analyze test logs to distinguish real hardware failures from test environment, script, or infrastructure issues; reduce NTF and retest rates.
• Own test process discipline: test flow compliance (SN/MAC provisioning, station sequencing), standard work adherence, deviation control, and process audit readiness.
• Monitor and drive KPIs: FPY, cycle time, test-tail control, station utilization/idle time, throughput vs. plan, downtime, NTF/retest rate.
• Manage manpower, shift schedules, overtime, and cross-training coverage for 24/7 operation, including LC-specific certification of technicians.
• Support liquid cooling test infrastructure readiness: CDUs, manifolds, cold plates, and quick disconnects; enforce leak check procedures and lead leak/spill response on shift.
• Coordinate capacity planning, material readiness, and test bay infrastructure readiness (power distribution, network switching, coolant loop).
• Reduce pre-start wait time and prioritize servers and racks by customer commit date.
• Lead customer escalations and cross-functional communication with Engineering, Quality, and Repair.
• Coach technicians and engineers on failure triage and log analysis; maintain the cross-training and LC certification matrix.
• Support NPI and new test process implementation for liquid-cooled server and rack platforms.
• Own floor EHS compliance: LOTO, electrical safety in test bays, coolant handling and spill response, and 5S/housekeeping.
• Prepare executive reports and recovery/mitigation plans for output and yield misses, with root cause analysis.
• Drive Kaizen and standard work compliance.

Qualifications & Experience

• Bachelor's degree required (Engineering, Electronics, Industrial, Mechanical, or related field).
• 3-5 years in electronics/server manufacturing or test operations, with at least 1-2 years supervising technicians in a multi-shift environment.
• Server-level (L10) and rack-level (L11) functional test experience - required. Understanding of server and rack test flows, test stations, SN/MAC provisioning, and test process control.
• Strong failure analysis and test log experience - required. Hands-on failure triage, log reading and interpretation, failure mode classification, and root cause methodology (8D/5-Why).
• Liquid cooling equipment experience - preferred, not required. CDUs, cold plates, manifolds, quick disconnects, leak detection. Internal LC certification training is provided.
• Experience running operations against daily output targets and reporting misses with root cause and recovery plan.
• Programming/scripting skills - Python, Java, Bash, SQL or similar. Applied to test log parsing, failure data analysis, and automation of reports and test floor tools.
• Familiarity with test bay infrastructure: power distribution and network switching in test environments.
• Strong communication and decision-making skills; excellent attention to detail and dedication to maintaining quality standards.
• Failure analysis - failure triage, Pareto by failure mode and architecture level, NTF/retest reduction, root cause closure, feedback loop to Engineering and Repair.
• Test logs & data analysis - log reading and interpretation, distinguishing hardware vs. test environment issues, data-driven yield improvement.
• Test process discipline - test flow compliance, standard work, deviation control, audit readiness.
• Liquid cooling operations - CDU awareness, leak prevention/response discipline, coolant handling safety (developed via internal certification).
• Shift & manpower management - scheduling, overtime control, cross-training and LC certification matrix, coverage for 24/7 operation.
• KPI management - FPY, cycle time, test-tail control, station utilization/idle time, throughput vs. plan, downtime, NTF/retest rate.
• Communication - shift handoffs, executive and customer-facing reporting, clear plain-language instructions to floor staff. Bilingual English/Spanish.
• Programming & scripting - Python, Java, Bash, SQL or similar for test log parsing, failure data analysis, dashboards, and automation of repetitive test floor tasks.
• Systems & tools - MES/test management systems, Excel and PowerPoint reporting, Kaizen and standard work.

Region/Country-Specific Requirements

Must be legally authorized to work in the United States.