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Salary: USD 165,000 - 192,500 / annual
Lunar Energy is seeking a Staff Reliability Engineer to ensure product reliability across the full lifecycle of home energy systems. This is a technical leadership role focused on power electronics and battery systems reliability.
Key responsibilities include:
- Collaborate with mechanical and electrical engineering teams during hardware design to establish component and system-level reliability targets for power electronics and battery systems
- Provide Design for Reliability (DfR) inputs during new product development cycles
- Drive Design Failure Modes and Effects Analyses (DFMEA) to identify performance risks and implement mitigation strategies
- Develop Accelerated Life Testing (ALT) reliability test plans for components and subsystems using physics-of-failure methodology
- Monitor field reliability performance metrics including part replacements, customer complaints, and fault codes; identify continuous improvement opportunities
- Conduct failure analysis on test and field returns to determine root causes and drive corrective actions
- Partner with finance on warranty program insights
Required qualifications:
- Bachelor's degree in Mechanical Engineering, Electrical Engineering, Chemical Engineering, Physics, or equivalent
- Proven track record solving complex power electronics reliability failures
- Working knowledge of power converter topologies (inverters, buck-boost converters, etc.)
- Deep understanding of physics of failure and failure mechanisms for PCBAs and power electronics components (MOSFETs, capacitors, inductors)
- Hands-on experience with failure analysis techniques: optical microscopy, SEM, CSAM, X-ray, cross-sectioning, EDX
- Experience with accelerated life testing models and governing equations for PCBAs, battery storage, and mechanical structures
- Understanding of reliability statistics
Lunar Energy is a fast-growing clean energy company building products to electrify homes and create virtual power plants. The company offers competitive compensation, equity participation, comprehensive health benefits, flexible PTO, 401(k), paid parental leave, and EV charging subsidies.
