Senior ML Engineer, Notifications & Personalization

Reddit, Inc.; United States; On-site; USD 266,000 - 372,400; Full time

Benefits offered by this job

Healthcare Benefits

401(k) with Employer Match

Global Benefit programs

Family Planning Support

Mental Health & Coaching

Flexible Vacation & Volunteer Time Off

Parental Leave

Job summary

Reddit, Inc. is seeking an experienced Senior ML Engineer to lead the Notifications Relevance team's content discovery and personalization initiatives in the United States.

You will define roadmaps, deploy state-of-the-art ML models, and collaborate with ML, Product, Infrastructure and DS teams to advance the product at scale. The role requires deep expertise in large-scale recommender systems, experience with PyTorch or TensorFlow, and a track record of deploying LLM-enabled recommendations.

Qualifications

• 10+ years of industry experience in large-scale recommender systems.
• Proven ability to define roadmaps and drive scalable improvements in notifications relevance.
• Experience building and deploying ML models with PyTorch or TensorFlow.
• Experience with LLMs in production and generative AI for recommendations.

Responsibilities

• 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.
• 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.

Skills

Python

Golang

ML model deployment

LLMs in production

Large-scale recommender systems

Object-oriented programming

Tools

PyTorch

TensorFlow

Job description

Reddit, Inc. is seeking an experienced Senior ML Engineer to lead the Notifications Relevance team's content discovery and personalization initiatives in the United States.

You will define roadmaps, deploy state-of-the-art ML models, and collaborate with ML, Product, Infrastructure and DS teams to advance the product at scale. The role requires deep expertise in large-scale recommender systems, experience with PyTorch or TensorFlow, and a track record of deploying LLM-enabled recommendations.