Maintenance and Calibration Sustaining Engineer

Company Overview Amperesand is reinventing how the world powers its most critical systems. We are facing a once-in-a-generation opportunity for infrastructure disruption. Electricity demand is skyrocketing, driven by AI factories, electric vehicles, and modern industrial growth. Energy supply is shifting to incorporate a more diverse mix of resources – including solar, gas, and batteries – at a massive scale. And yet the power infrastructure behind our latest mega-projects hasn’t meaningfully changed in nearly 100 years. Supply chains for today’s infrastructure equipment can’t match the pace and sophistication of critical energy projects. Amperesand is building hardware and software that rewrites this broken power infrastructure playbook to support a new era of energy abundance. We’ve built a new class of intelligent, software-defined power infrastructure products leveraging a decade of advanced medium voltage Solid State Transformer research that’s now ready for commercial deployment. Our products and solutions go far beyond the capabilities of traditional electrical equipment. We make power systems that are faster to deploy, dramatically smaller and more efficient, and capable of supporting modern, dynamic energy needs for tomorrow’s most demanding energy consumers. Scalable in-house advanced manufacturing capability is our foundation for meeting timeline and quality expectation to serve infrastructure customers around the world. Amperesand is led by breakthrough energy hardware development veterans and funded by top tier investors who share our vision of building a category-defining energy technology company. With hubs in San Francisco, Reno, and Singapore, our global team is laser focused on building foundational technology to solve the most pressing problems in power infrastructure at scale. Join us in building the power foundation of the future! Responsibilities Maintenance & Equipment Reliability Develop, implement, and optimize preventive and predictive maintenance programs for all production equipment, test systems, and facility assets. Lead troubleshooting and root cause analysis for equipment failures, chronic issues, and performance degradation. Ensure equipment uptime, reliability, and safety to meet production requirements and operational KPIs. Partner with mechanical, electrical, and controls engineering teams to improve equipment design for maintainability and long-term robustness. Oversee maintenance documentation, including work orders, service logs, and equipment history records. Calibration & Technical Accuracy Own the full calibration program for production tools, measurement devices, sensors, and test equipment. Define calibration intervals, procedures, and acceptance criteria in collaboration with Quality and Engineering. Manage internal and external calibration services, ensuring compliance with industry standards and customer requirements. Maintain traceability and documentation for all calibrated assets. Spare Parts & Asset Management Establish and manage a structured spare parts program, including critical spares identification, stocking strategies, and vendor coordination. Maintain accurate inventory levels to support uninterrupted production while optimizing cost and storage. Oversee asset lifecycle management, including equipment commissioning, decommissioning, and replacement planning. Cross-Functional Collaboration Work closely with Design Engineering, NPI, Quality, and Production teams to support new equipment introduction and scale-up. Participate in equipment FAT/SAT activities and support installation, commissioning, and validation of new machinery. Provide maintenance and calibration input during equipment design reviews and process development. Continuous Improvement Use data-driven methods to identify trends, reduce downtime, and improve equipment performance. Lead root cause investigations and corrective actions for equipment-related quality or reliability issues. Drive improvements in O