Shape reliable capacity plans with Python or Kotlin as a Senior Backend Engineer on Affirm’s remote Canada Capacity Modeling team. Forecast traffic and tune resources for peak demand. This senior position owns quarterly goals while guiding engineers through ambiguous, open-ended problems. You will build backend systems at scale using AWS, MySQL, or Kubernetes. The work connects statistical models with CPU, memory, connections, pod counts, HPA ranges, and infrastructure sizing. You will help ensure Affirm can handle major sales events safely. Key Responsibilities:
Own quarterly team goals and guide engineers through delivery Collaborate with product, design, and analytics stakeholders Identify and resolve project, process, technology, and business issues Monitor metrics and support availability, operations, and on-call efforts Improve code review and design standards through writing and tech talks Requirements:
Four-plus years designing and launching backend systems at scale Python or Kotlin experience with highly available distributed systems AWS, MySQL, and Kubernetes experience Autoscaling, CPU, memory, and multithreading tuning experience Equivalent practical experience or a related bachelor’s degree Bring backend engineering, capacity modeling, and distributed systems expertise to help Affirm scale reliably across remote Canada.
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Senior Backend Capacity Engineer employer: Affirm
At Affirm, we pride ourselves on being a remote-first employer that values flexibility and inclusivity, allowing our Machine Learning Engineers to thrive in a supportive environment. With comprehensive health coverage, generous time-off policies, and opportunities for professional growth, we empower our employees to take ownership of their careers while contributing to meaningful projects that redefine credit. Join us in a culture that prioritizes transparency and collaboration, where your contributions directly impact the future of financial technology.
