Skip to content
RedditRedditUnited States

Senior Staff Machine Learning Engineer, Notifications

As a Senior Staff Machine Learning Engineer, you will design and build large-scale, end-to-end recommendation systems for Reddit's Notifications Relevance team. You will leverage machine learning and LLMs to deliver personalized content to users, driving growth and user engagement.

266k – 372k
Remote10+ YOEML Engineering

About the role

What You’ll Do

  • Contribute to advancing Reddit's growth by designing and implementing content discovery algorithms that prioritize a seamless and highly personalized user experience.
  • Deeply understand the Reddit Notifications product and drive the vision for the notifications relevance team.
  • Enhance core recommendation capabilities, including candidate retrieval, ranking models, and budgeting optimization, while designing and testing new pipeline components. You will also deploy ML models, integrate LLMs, and ensure robust monitoring and smooth product integration throughout the process.
  • Serve as the primary ML domain expert, deploying state-of-the-art models at scale, driving architectural decisions, and ensuring robust monitoring and smooth product integration across the engineering organization.
  • Collaborate across disciplines and with ML, Product, Infrastructure, and DS teams at Reddit to find technical solutions to complex challenges.
  • Mentor and guide senior and staff engineers in the team.
  • Partner closely with senior leadership and cross-functional org leads to shape long-term roadmaps, balancing immediate operational wins with strategic technical objectives.

Who You Are

  • 10+ years of industry experience with deep expertise in large-scale recommendation systems, notifications experience preferred.
  • Proven ability to identify key opportunities, define roadmaps and drive scalable improvement in notifications relevance.
  • Strong experience in building and deploying large-scale ML models using frameworks such as PyTorch or Tensorflow.
  • Experience working with LLM in production and utilizing generative AI to augment recommendation systems
  • Proficiency in object-oriented programming (Python, Golang).
  • Big Plus: experience with state of the art model architectures
  • Big Plus: experience building production Agentic AI frameworks.

Benefits:

  • Comprehensive Healthcare Benefits and Income Replacement Programs
  • 401k with Employer Match
  • Global Benefit programs that fit your lifestyle, from workspace to professional development to caregiving support
  • Family Planning Support
  • Gender-Affirming Care
  • Mental Health & Coaching Benefits
  • Flexible Vacation & Paid Volunteer Time Off
  • Generous Paid Parental Leave

Skills

PyTorchTensorFlowPythonGoLLMsGenerative AIRecommendation Systems

Similar roles

ML Engineering jobs
Reddit

Senior Staff Machine Learning Engineer, ML Understanding

RedditUnited States

Leads design and implementation of advanced user modeling systems using ML and LLMs to create unified user representations for personalization across Reddit's Feeds, Search, Notifications, and Ads. Requires 10+ years in production ML, especially user understanding and recommender systems.

266k – 372k
Remote10+ YOEML Engineering
Reddit

Senior Staff ML Engineer, Search & Recommendation

RedditUnited States

Designs and builds large-scale ML systems for Reddit's search relevance, including query understanding, retrieval, ranking, and LLM integration. Requires 10+ years in search/recommendation systems, ML model deployment, and cross-team collaboration.

266k – 372k
Remote10+ YOEML Engineering
Headway

Staff Software Engineer

HeadwayNew York, NY

Staff-level engineer building LLM/ML systems for clinical documentation review, risk detection in healthcare claims, and provider-patient matching at a mental healthcare platform.

264k – 330k
Remote7+ YOEML Engineering
Pinterest

Sr. Staff Machine Learning Engineer, Content Quality

PinterestSan Francisco, CA

Leads technical strategy and architecture for content quality ML signals at Pinterest, driving GenAI safety, signal development, and cross-team adoption in ranking and decision systems. Requires expertise in scalable ML, content modeling, and cross-functional leadership.

268k – 469k
HybridML Engineering
Runway

Member of Technical Staff, Robotics Research Engineer

RunwayNew York, NY

As a Member of Technical Staff, Robotics Research Engineer, you will lead the robotics vertical of world models, transforming video-native foundation models into policies for real robots. This hands-on role involves designing robot learning pipelines, deploying policies on hardware, and conducting experiments to advance manipulation and locomotion performance.

270k – 370k
On-site7+ YOEML Engineering