About Us Sapir AI is a Toronto-based robotics and AI startup building connected consumer hardware, including wearables and smart home devices. We're hiring a Senior Backend Engineer to own the systems behind our connected devices, from data pipelines to AI infrastructure. You'll work with high autonomy, taking full ownership from design to production.

Responsibilities

Backend systems handling real-time device data (video, sensor, and AI inference events) at scale

Edge-to-cloud AI pipelines and third-party machine learning inference integrations

Privacy-first storage and retention, with on-device processing where possible

Event-streaming, alerting, and subscription billing infrastructure

Requirements

5+ years of backend engineering experience; Python required

SQL and NoSQL databases (Postgres, DynamoDB/MongoDB)

AWS/GCP and streaming infrastructure (IoT Core/Kinesis), Firebase (storage, messaging)

API design at scale: REST/gRPC, plus MQTT and/or Kafka





Video/audio/binary data pipelines

CI/CD (Continuous Integration/Continuous Deployment), Docker/Kubernetes, staging/deployment/scaling tooling

Nice to Have

Production machine learning/large language model inference infrastructure (managed model APIs, vLLM, Triton, or similar)

Consumer IoT (Internet of Things)/wearables experience, or any machine learning application with real production traffic

On-device/edge machine learning or privacy-preserving architecture experience

Soft Skills

Adaptable and comfortable with rapid iteration as the product evolves

Pragmatic about scale. Builds for today, while understanding where to maintain flexibility to future-proof for growth

Collaborative across hardware, firmware, and mobile teams

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📌 Senior Backend Engineer (IoT and Wearables) (Winnipeg)
🏢 Sapir Robotics
📍 Winnipeg