Senior Backend Engineer

About the role

RIVR, an Amazon company, builds physical AI by deploying autonomous robots for doorstep delivery. As its next Senior Backend Engineer, you will design, develop and operate the server-side systems powering the robotics delivery platform. The role focuses on building robust, scalable microservices and integrations for fleet operations, process integrations and data processing in a cloud-native environment.

Key responsibilities

• Design and implement backend services that integrate RIVR's platform with customers' systems.
• Develop and enhance the backend infrastructure for the robot operations platform.
• Build backend components that aggregate KPIs to give insight into platform performance and business value.
• Contribute to the architecture, reliability and scalability of backend systems in a containerized microservices context.
• Work closely with frontend, robotics and infrastructure engineers to deliver end-to-end features.

Required profile

• 5 years of professional experience designing, building, deploying and operating backend systems in a service-oriented architecture context.
• Demonstrable experience in at least one of: integrating with complex third-party APIs and building distributed workflows (task queues, state machines), or building event-driven applications and scalable data processing pipelines (Kafka, message queues, serverless functions).
• Willingness to take part in on-call rotations.

Required skills

• Strong experience with TypeScript, Java, C++ and/or Python.
• Different interaction patterns such as RPC, publish/subscribe and event-driven architectures.
• At least two database technologies.
• Preferred: CI/CD pipeline configuration, background in robotics, IoT, fleet management or real-time data streaming, and observability tools such as OTLP, Grafana and Prometheus.