Staff ML Engineer (Remote) — End-to-End ML Systems

Reddit; United States; Remote; USD 230,000 - 322,000; Full time

Benefits offered by this job

Healthcare benefits

Employer 401k match

Global benefits

Family planning support

Mental health & coaching

Parental leave

Job summary

Reddit is hiring a Staff Machine Learning Engineer to drive end-to-end ML initiatives across recommendations, search, messaging, and foundational AI systems. You will lead high-impact projects from ideation to production, shaping both technical strategy and product direction with Product, Data Science, and Engineering.

The role requires 7+ years in production ML, deep learning expertise, and hands-on experience with TensorFlow, PyTorch, or Transformers.

Qualifications

• 7+ years of experience building, deploying, and operating machine learning systems in production.
• Deep understanding of machine learning methods, spanning classical approaches and modern deep learning (e.g., Transformers, GNN, etc)
• Expert at developing and productionizing models using TensorFlow, PyTorch, or Hugging Face Transformers
• Experience building production-quality code incorporating testing, evaluation, and monitoring using object-oriented programming, including experience in Python and Golang
• Experience designing and scaling ML systems, including data pipelines, feature engineering, model training/serving, and production monitoring
• Excellent communication and collaboration skills, with the ability to discuss complex technical topics with diverse teams and translating product needs into scalable ML solutions
• Track record of driving measurable impact through applied machine learning in real-world products

Responsibilities

• Lead end-to-end ML initiatives from ideation through production and iteration, shaping technical direction and translating product goals into scalable solutions
• Architect, build and deploy large-scale ML systems across recommendation, search, and content/user understanding, including retrieval/ranking models, representation learnings embeddings optimizations, and LLM or GenAI-powered capabilities
• Drive measurable impact on user engagement, discovery, and long-term value
• Collaborate with cross-functional teams to align product and technical roadmaps and unlock key future ML capabilities
• Stay at the forefront of AI research, evaluating and introducing new AI/ML paradigms to keep Reddit’s ML ecosystem at the cutting edge
• Contribute to the development of best practices, guidelines, and ethical AI principles for responsible LLM development and deployment
• Mentor and guide senior and mid-level ML engineers, fostering a culture of excellence, innovation, and knowledge sharing
• Set technical vision and drive technical discussions, present findings to leadership, and contribute to long-term ML planning and decision-making

Skills

ML engineering

Production systems

Python

Golang

Transformers

Model deployment

Communication

Education

Advanced degree in Computer Science or related field

Tools

TensorFlow

PyTorch

HuggingFace Transformers

Spark

Kafka

Ray

Airflow

BigQuery

Redis

Job description

Reddit is hiring a Staff Machine Learning Engineer to drive end-to-end ML initiatives across recommendations, search, messaging, and foundational AI systems. You will lead high-impact projects from ideation to production, shaping both technical strategy and product direction with Product, Data Science, and Engineering.

The role requires 7+ years in production ML, deep learning expertise, and hands-on experience with TensorFlow, PyTorch, or Transformers.