Senior Manager, Sustaining Engineering & Product Lifecycle

Location: Carrollton, TX

Department: LQS - Sustaining

Position Summary

LiquidStack is a rapidly scaling technology company delivering advanced liquid cooling solutions for hyperscale, enterprise, and edge data centers supporting AI and high-performance computing workloads. We are seeking a Senior Manager of Sustaining Engineering to own the post-launch lifecycle of LiquidStack products, while actively contributing to New Product Introduction (NPI), service readiness, and continuous improvement.

This role serves as a critical technical leader within the Sustaining Engineering organization, acting as a bridge between Engineering, Manufacturing, Quality, and Global Services. The Senior Manager ensures product reliability, field performance, and customer satisfaction from launch through end-of-life, while supporting complex service escalations, customer issues, and lab validation activities.

Key Responsibilities

Sustaining Engineering & Product Lifecycle Ownership

• Lead sustaining engineering activities for released products, ensuring reliability, serviceability, and continuous improvement throughout the product lifecycle.
• Drive root-cause analysis (RCA) and corrective and preventive actions for field issues, quality escapes, and reliability concerns.
• Own engineering change requests (ECR/ECO) related to performance, quality, manufacturability, cost, and serviceability.
• Partner closely with Quality and Manufacturing on defect analysis, containment actions, and long-term corrective strategies.

New Product Introduction (NPI) Support

• Support NPI programs to ensure products are designed for long-term reliability, serviceability, and field readiness.
• Provide sustaining and service input into design reviews, validation plans, and reliability testing.
• Ensure effective transition from development to sustaining ownership post-launch.

Service Escalations & Customer Support

• Serve as a senior technical escalation point for complex service, customer, and field issues.
• Support Global Services and Field Service teams during high-impact customer escalations.
• Participate in on-site customer visits as needed to resolve critical issues and reinforce customer confidence.
• Partner with Service leadership to improve procedures, tools, and training based on field learnings.

Lab, Validation & Technical Support

• Support performance, validation, and reliability lab activities, including test planning and failure analysis.
• Analyze lab and field data to identify trends, risks, and improvement opportunities.
• Collaborate with Engineering and R&D teams to validate design changes and corrective actions.

Cross-Functional Leadership & Process Improvement

• Act as a technical liaison across Engineering, Quality, Manufacturing, Supply Chain, and Global Services.
• Develop sustaining documentation including service bulletins, technical advisories, and lessons learned.
• Improve sustaining engineering processes aligned with a scaling organization and ISO-based quality systems.
• Mentor and guide engineers and technical staff supporting sustaining and service efforts.

Required Qualifications

• Bachelor’s degree in Mechanical Engineering or related discipline.
• 10+ years of experience in data centers or mission-critical cooling environments, or 15+ years of experience in HVAC, thermal systems, or the cooling industry.
• Demonstrated experience supporting products across the full lifecycle, including post-launch sustainment.
• Proven success managing technical service escalations and customer-facing issue resolution.
• Strong background in root-cause analysis, reliability engineering, and corrective action implementation.
• Experience working cross-functionally with Engineering, Manufacturing, Quality, and Services organizations.

Preferred Experience & Skills

• Prior experience leading or managing a sustaining engineering function or team.
• Deep technical knowledge of data center cooling systems, HVAC equipment, or mission-critical infrastructure.
• Experience supporting performance testing, validation labs, and reliability testing.
• Familiarity with ISO-aligned quality systems and documentation.
• Strong communication skills with both technical and executive stakeholders.
• Comfort operating in a fast-scaling, evolving startup environment.

Why LiquidStack

LiquidStack offers the opportunity to lead sustaining efforts for next-generation liquid cooling technology supporting AI workloads, influence product reliability and customer experience at scale, partner closely with Engineering, Quality, and Services leadership, and help build and mature sustaining engineering processes during a high-growth phase.