Build AI platform infrastructure with Python or Kotlin as a remote Senior Backend Engineer at Affirm, serving teams and production workloads. This senior-level role owns technical decisions and projects across design, launch, and on-call. You will build highly available distributed systems using AWS, MySQL, and Kubernetes. Your work supports LLM gateways, agent runtimes, evaluation services, identity, routing, caching, and failover controls. Key Responsibilities:
Design gateway, runtime, and evaluation services for production AI workloads Plan projects and own decisions from design through launch Build identity, quota, routing, caching, and failover controls Monitor systems through metrics, alerts, runbooks, and on-call Mentor engineers and improve design, coding, and testing practices Requirements:
Four or more years designing backend systems at scale Experience with Python or Kotlin, AWS, MySQL, and Kubernetes Production experience with LLMs, agents, or AI frameworks Equivalent practical experience or a related Bachelor’s degree Strong written and verbal communication for global collaboration Bring distributed systems expertise and production AI experience to Affirm’s remote AI Platform team across Canada.
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Senior Backend AI Platform Engineer in Windsor 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.
