✨ AI Insights & Summary
Reddit is at the forefront of redefining search with its unique community-driven content. This Senior Staff role offers a pivotal opportunity to shape the future of Reddit's search and recommendations, leveraging vast user-generated data and cutting-edge AI. If you're a seasoned engineer with a passion for large-scale systems and AI innovation, this is your chance to make a significant impact on how millions discover information.
About Reddit
Reddit is a community of communities, built on shared interests, passion, and trust. It is the internet's largest source of authentic conversations, hosting over 100,000 active communities and attracting approximately 126 million daily active unique visitors.
About the Role
The Search Recommendations & Relevance team at Reddit is building the next generation of search, moving beyond traditional results to deliver real answers, perspectives, and conversations from the world's largest corpus of human dialogue. This role powers both Reddit Search and Reddit's AI-native Search experience, fundamentally changing how users discover and interact with information.
As a Senior Staff Engineer, you will design and build a large-scale system that powers end-to-end search relevance. You'll work across the stack, including query understanding, retrieval, ranking, features, measurement, LLM-based answers, and RAG, collaborating deeply with product, leadership, and cross-functional teams to deliver reliable, high-quality systems for billions of users.
What You'll Do
- Contribute to advancing Reddit's Search and Recommendations products by designing AI-driven Search experiences that prioritize seamless and delightful user interaction.
- Gain a deep understanding of the Reddit search product and drive the vision for the search relevance team.
- Enhance core search retrieval and ranking, design and implement new search engine features, build and scale search indexes, and develop/test new pipeline components.
- Deploy ML models, integrate LLMs, and ensure robust monitoring and smooth product integration.
- Collaborate across disciplines with ML, Product, Infrastructure, and Data Science teams to solve complex technical challenges.
- Mentor and guide senior and staff engineers within the team.
- Influence organization-wide technical direction and partner closely with senior leadership to shape the long-term roadmap.
Who You Are
- 10+ years of industry experience with deep expertise in large-scale search and recommendation systems.
- Proven ability to identify key opportunities, define roadmaps, and drive scalable improvements in search relevance.
- Strong experience building and deploying large-scale ML models using frameworks like PyTorch or TensorFlow.
- Experience working with LLMs in production, including evaluation, tuning, and deployment.
- In-depth knowledge and experience with lexical and semantic retrieval systems.
- Proficiency in object-oriented programming (Python, Golang).
- Nice to have: 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
Pay Transparency
This job posting may span more than one career level. In addition to base salary, this job is eligible to receive equity in the form of restricted stock units. Reddit offers a wide range of benefits to U.S.-based employees. The base salary range for this position is $266,000 - $372,400 USD.
Additional Information
- #LI-remote, #LI-JS5
- In select roles and locations, interviews may be recorded, transcribed, and summarized by AI. You will have the opportunity to opt out.