Member of Technical Staff Post Training Data Infrastructure

Toronto-founded enterprise AI company building foundation models, agentic AI, enterprise search, and private deployment products.

Toronto, Canada
About Cohere

Cohere provides enterprise-focused AI models and end-to-end products, including North for agentic workplace AI, Compass for enterprise search, and models for generation and retrieval. It supports private, VPC, and on-premises deployment options.

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Skills

About the Role

You will build and own pipelines for post-training data, including SFT, preference, reinforcement-learning, synthetic, and human-annotated data. You will manage dataset quality, versioning, and reproducibility; turn research recipes into reusable production components; scale inference; design data schemas; and collaborate with researchers and engineers.

Requirements

  • Software engineering
  • Large-scale machine-learning data pipelines
  • LLM post-training
  • Distributed data processing
  • Model inference
  • SFT
  • RLHF
  • DPO
  • Communication

Responsibilities

  • Build and maintain data pipelines for SFT, preference, and reinforcement-learning data
  • Own dataset quality, versioning, and reproducibility
  • Convert research data recipes into reusable production components
  • Scale model inference for data generation and model-based grading
  • Design efficient data formats and schemas
  • Collaborate with researchers and engineers on data-pipeline needs

Benefits

  • Weekly lunch stipend of $75/£75 or local equivalent
  • Health and dental benefits, including a mental-health budget
  • RRSP matching, 401K, and Pension Scheme
  • 100% parental-leave top-up for up to 6 months
  • Arts and culture, fitness/wellness, quality-time, and workspace-improvement benefits
  • Education and learning stipend
  • 6 weeks of paid vacation
  • Travel budget for other offices and annual company offsite
  • Co-working benefit
  • $500 home-office stipend
  • Daily lunch, snacks, and community events for office-based employees