Staff Machine Learning Engineer, Retrieval

RedditNorth AmericaLead7+ years experienceMachine Learning Engineering

The role

Reddit is hiring a Staff Machine Learning Engineer to provide technical leadership for its Ads Retrieval ML team, which builds models that pick candidate ads for users. The role is fully remote.

What you will do

  • Set the technical direction and multi-year roadmap for ads retrieval modeling
  • Design and launch candidate-generation and retrieval models for ad surfaces
  • Apply two-tower models, embeddings, sequence models and graph methods where they add value
  • Work with approximate nearest-neighbor retrieval, weighing recall, latency and cost
  • Lead offline analysis and online experiments
  • Write design docs, review code and mentor ML engineers

What they ask for

  • 7+ years of industry experience shipping applied ML products
  • Deep experience in information retrieval, candidate generation, recommenders or ranking
  • Knowledge of embeddings, two-tower models, approximate nearest-neighbor search and multi-stage retrieval
  • Experience training and deploying deep models with TensorFlow, PyTorch or similar
  • Strong experimental design and model evaluation
  • Large-scale behavioral data and feature pipeline experience
  • Technical leadership and mentoring experience

What they offer

  • 100% remote option
  • Equity in the form of restricted stock units
  • Healthcare benefits and 401k with employer match
  • Flexible vacation, paid volunteer time and paid parental leave

This is our own short reading of the posting. The full description, and anything that has changed since, is on Reddit's careers page behind the apply button.

Similar remote jobs

  • Likely 09:00–17:00 EDT (business hours where it hires)

    Reddit3d ago

    Staff Machine Learning Engineer, Retrieval & Targeting

    AIMachine LearningLead7+ yrs experience

    • LLM evaluation
    • PyTorch
    • TensorFlow
    • Machine learning
    • Recommender systems
    • +3
    Applicants: membersNorth AmericaUS

    Salary not listed

  • Likely 09:00–17:00 EDT (business hours where it hires)

    Coinbase3d ago

    Offensive Security Engineer, AI

    AIAI SecurityMid Level3+ yrs experience

    • Python
    • Go
    • LLMs
    • Application security
    • LLM security
    • +3
    Applicants: membersNorth AmericaCA

    CAD 154,000 / year

  • Likely 09:00–17:00 EDT (business hours where it hires)

    Twilio3d ago

    Staff Machine Learning Engineer

    AIMachine LearningLead8+ yrs experience

    • Python
    • AWS
    • LLMs
    • Google Cloud
    • Azure
    • +3
    Applicants: membersNorth AmericaCA

    Salary not listed

  • Likely 09:00–17:00 EDT (business hours where it hires)

    Mercury3d ago

    Software Engineer - Mercury Command

    AIAI EngineeringMid Level1+ yr experience

    • LLMs
    • Backend development
    • Full-stack development
    • AI tools
    • TypeScript
    • +3
    Applicants: membersNorth AmericaUS, CA

    Salary not listed

  • Likely 09:00–17:00 EDT (business hours where it hires)

    Cohere5d ago

    Staff/Senior Staff Software Engineer, Agent Infrastructure

    AIAI InfrastructureLead

    • Kubernetes
    • LLMs
    • Distributed systems
    • AI agents
    • Multi-agent systems
    • +3
    Applicants: membersNorth AmericaCA

    Salary not listed

  • Likely 09:00–17:00 EDT (business hours where it hires)

    Reddit5d ago

    Senior Data Scientist, Safety Enforcement

    AIData ScienceSenior8+ yrs experience

    • Python
    • SQL
    • LLM evaluation
    • Machine learning
    • Fraud detection
    • +3
    Applicants: membersNorth AmericaUS

    Salary not listed

More from Reddit

  • Likely 09:00–17:00 EDT (business hours where it hires)

    Reddit2d ago

    Software Engineer, Ad Signals

    ITBackendSenior

    • SQL
    Applicants: membersNorth AmericaUS

    USD 190,800–267,100 / year

  • Likely 09:00–17:00 EDT (business hours where it hires)

    Reddit3d ago

    Staff Machine Learning Engineer, Retrieval & Targeting

    AIMachine LearningLead7+ yrs experience

    • LLM evaluation
    • PyTorch
    • TensorFlow
    • Machine learning
    • Recommender systems
    • +3
    Applicants: membersNorth AmericaUS

    Salary not listed

  • Likely 09:00–17:00 EDT (business hours where it hires)

    Reddit5d ago

    Senior Data Scientist, Safety Enforcement

    AIData ScienceSenior8+ yrs experience

    • Python
    • SQL
    • LLM evaluation
    • Machine learning
    • Fraud detection
    • +3
    Applicants: membersNorth AmericaUS

    Salary not listed