Remote Position

[Remote] Senior Machine Learning Systems Engineer

๐ŸŒ Remote ยท United States ๐Ÿ’ผ Full-time

Note: The job is a remote job and is open to candidates in USA. Reddit is a community of communities, home to the most open and authentic conversations on the internet. The Senior Machine Learning Systems Engineer will lead the development of a platform for large scale ML models, focusing on enhancing model lifecycle patterns and collaborating with ML engineers to optimize performance in a distributed training environment.

Responsibilities

  • Design end-to-end model lifecycle patterns (MLOps) to boost velocity of development for ML engineers, including data preparation, model management, experiment tracking, and more
  • Zero-to-one development and support of a graph ML codebase and platform that abstracts away common patterns and enables greater model scalability and iteration
  • Collaborate with ML engineers on performance tuning, including improving model training time, efficiency, and GPU training costs in a large, distributed ML training environment
  • Optimize batch data processing within a data warehouse and with tools such as Apache Beam, Apache Spark, Ray Data, and more
  • Architect pipelines to build and maintain massive graph data structures on the order of billions of nodes and tens of billions of edges

Skills

  • 5+ years of experience in ML infrastructure, including model training and model deployments
  • Hands-on experience with ML optimization, including memory and GPU profiling
  • Deep experience with cloud-based technologies for supporting an ML platform, including tools like GCP BigQuery, Google Cloud Storage, infrastructure-as-code (Terraform), and more
  • Hands-on experience administering and integrating MLOps tools for experiment tracking, model serving, and model registries (e.g. MLflow or Wandb)
  • Proficiency with the common programming languages and frameworks of ML, such as Python, PyTorch, Tensorflow, etc
  • Deep experience working with distributed training frameworks, including Ray and Kubernetes
  • Strong focus on scalability, reliability, performance, and ease of use. You are an undying advocate for platform users and have a deep intuition for the machine learning development lifecycle
  • Strong organizational & communication skills
  • Experience working with graph databases (Neo4j, JanusGraph, TigerGraph) is a big plus
  • Experience working with graph neural networks (GNNs) and associated graph ML frameworks (PyTorch Geometric, Deep Graph Library) is a big plus

Benefits

  • Equity in the form of restricted stock units
  • Depending on the position offered, it may also be eligible to receive a commission
  • Medical, dental, and vision insurance
  • 401(k) program with employer match
  • Generous time off for vacation
  • Parental leave
  • Opt out of recording, transcription and summarization prior to any scheduled interviews

Company Overview

  • Reddit is the heart of the internet, where millions of people get together to talk about any topic imaginable. It was founded in 2005, and is headquartered in San Francisco, California, USA, with a workforce of 1001-5000 employees. Its website is https://www.redditinc.com.
  • Company H1B Sponsorship

  • Reddit, Inc. has a track record of offering H1B sponsorships, with 35 in 2026, 99 in 2025, 63 in 2024, 76 in 2023, 70 in 2022, 68 in 2021, 39 in 2020. Please note that this does not guarantee sponsorship for this specific role.
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