At WHOOP, we're on a mission to unlock human performance and healthspan. WHOOP empowers members to perform at a higher level through a deeper understanding of their bodies and daily lives. WHOOP is seeking a Senior Reliability Engineer to play a critical role in delivering predictable, high-confidence hardware launches and sustaining best-in-class in-market performance. This role is responsible for ensuring reliability is designed, demonstrated, and continuously improved across the full product lifecycle. You will drive data-informed decisions that reduce risk, eliminate surprises at launch, and ensure field performance matches expectations—directly protecting member trust and enabling WHOOP to scale with confidence.