Reddit

Machine Learning Engineer, Answers Relevance

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12 hours ago
Remote, United StatesSenior / Staff+
H1B sponsor

Base Salary

$217k - $322k/yr

Responsibilities

  • Lead machine learning projects from idea through production across recommendations, search, messaging, and AI systems.
  • Build and improve large-scale ML systems involving retrieval, ranking, embeddings, and LLM-powered features.
  • Set technical direction and deliver measurable user and business impact.
  • Partner with Product, Data Science, and Engineering teams to shape product and technical roadmaps.
  • Evaluate new AI and ML approaches and support responsible LLM development.
  • Mentor engineers and contribute to long-term machine learning planning.
  • Define product success metrics, feedback loops, and evaluation approaches, including human review.
  • Develop production-quality code with testing, evaluation, and monitoring.

Requirements

  • 4–12 years of experience building, deploying, and operating ML systems in production.
  • Broad knowledge of machine learning fundamentals and experience applying them in production.
  • Experience developing and productionizing models with TensorFlow, PyTorch, or Hugging Face Transformers.
  • Required experience writing production-quality Python code; Golang experience is a plus.
  • Experience with data pipelines, feature engineering, model training and serving, and production monitoring.
  • Strong communication and collaboration skills with a record of delivering measurable product impact.
  • Experience with recommendations, search, content understanding, large-scale ML infrastructure, retrieval-augmented generation, LLM evaluation, agentic AI, or related areas is useful but not required in every area.

Benefits

  • Comprehensive healthcare benefits and income replacement programs.
  • 401(k) with employer match.
  • Global benefits supporting workspace, professional development, caregiving, and lifestyle needs.
  • Family planning support.
  • Gender-affirming care.
  • Mental health and coaching benefits.
  • Flexible vacation and paid volunteer time off.
  • Generous paid parental leave.
  • Remote work is indicated by the #LI-Remote designation.
  • The posting may span more than one career level and includes equity eligibility; select positions may also be eligible for commission.

Tech Stack

GoHugging Face TransformersPythonPyTorchTensorFlow

Categories

Reddit

About Reddit

5,001-10,000 employees

Reddit builds a social news and discussion platform organized into user-created forums (“subreddits”) for consumers, creators, and communities. It monetizes primarily through advertising tools for brands and self-serve advertisers, plus a Premium subscription; developers can access data via its API. Founded in 2005 and headquartered in San Francisco, Reddit became a public company on the NYSE in 2024 and hosts over 100,000 active communities.

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