Staff Software Engineer, ML Search

Reddit Inc.

Job Overview

Location

Remote - United States

Job Type

Full-time

Full Job Description

📋 Description

• As a Staff Software Engineer, ML Search at Reddit, you will build backend and pipeline systems that turn machine learning models into real search experiences for over 110 million daily users, directly impacting how people discover content across the platform’s vast network of communities.
• You will own data flows, ranking and retrieval services, and low-latency model-serving APIs, integrating models into production through robust interfaces and DAGs to enable fast iteration and power discovery across Reddit’s ecosystem.
• The Search & Recommendation Relevance team focuses on delivering the most relevant results from Reddit’s enormous corpus of human conversation, ensuring scalability, maintainability, and low latency in systems that serve diverse user intents—from hiking trails to product reviews.
• In this role, you will deepen your expertise in large-scale search infrastructure, lead cross-functional initiatives, and shape the foundation for how machine learning models are deployed and served at scale, enabling better modeling through improved systems, features, and deployment pathways.

🎯 Requirements

• 8+ years of industry experience with a focus on search and recommendation systems
• 6+ years of experience designing, building, and iterating large-scale search relevance and infrastructure systems, handling end-to-end system development
• Proficient in object-oriented programming (Python, Golang) and experienced in API design and integration with GraphQL, REST, HTTP, Thrift, or gRPC
• Experience developing applications using large-scale data stacks such as Kubeflow, Airflow, BigQuery, Kafka, Kubernetes, and Redis
• Knowledge and hands-on experience with search systems including Lucene, Solr, ElasticSearch, or OpenSearch
• Proven track record of delivering large, complex systems with significant business impact and strong cross-functional collaboration skills

🏖️ Benefits

• Comprehensive Healthcare Benefits and Income Replacement Programs
• 401(k) with Employer Match
• Global Benefit programs supporting workspace, professional development, and caregiving needs
• Family Planning Support and Gender-Affirming Care
• Mental Health & Coaching Benefits
• Flexible Vacation and Paid Volunteer Time Off
• Generous Paid Parental Leave

Skills & Technologies

Python

Redis

Elasticsearch

Kubernetes

Senior

Remote

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Reddit Inc.

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About Reddit Inc.

Reddit is a social media platform where users submit, vote, and comment on content organized into topic-based communities called subreddits. Founded in 2005, it offers forums for news, hobbies, advice, and discussion, enabling real-time conversations and content ranking through upvotes and downvotes. With millions of daily active users globally, Reddit hosts diverse communities moderated by volunteers, supports multimedia posts, and provides advertising and premium membership options. The platform emphasizes user anonymity, community governance, and crowdsourced information, making it a hub for niche interests, viral content, and public discourse. Reddit went public in 2024 and is headquartered in San Francisco.

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