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Senior Staff Machine Learning Systems Engineer, Indexing & Retrieval Search Remote - United StatesReddit, Inc. • New York, New York, United States
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Senior Staff Machine Learning Systems Engineer, Indexing & Retrieval Search Remote - United States

Reddit, Inc.
  • US
    New York, New York, United States
  • US
    New York, New York, United States
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À propos

Senior Staff Software Engineer, Indexing & Retrieval Platform Remote - United States
Reddit is a community of communities. It’s built on shared interests, passion, and trust, and is home to the most open and authentic conversations on the internet. Every day, Reddit users submit, vote, and comment on the topics they care most about. With 100,000+ active communities and approximately 121 million daily active unique visitors, Reddit is one of the internet’s largest sources of information. For more information, visit www.redditinc.com.
Team The ML Indexing & Retrieval Platform team at Reddit is responsible for building and scaling the core infrastructure that powers machine learning driven recommendations. We design and maintain systems for ML data ingestion, low-latency retrieval services, and end-to-end lifecycle management of data. With a focus on performance, reliability, and scalability, we enable real-time access to high-quality data that supports a wide range of applications, including Content Understanding, Semantic, Lexical retrieval & GenAI applications.
How You'll Have Impact You’ll lead the development of next‑generation ML Indexing & Retrieval systems, owning the full lifecycle from ideation to production and going beyond incremental improvements to reimagine core platform capabilities. As part of a high‑impact, cross‑functional team, you’ll solve complex technical challenges to build scalable, reliable platforms that empower developers to efficiently ship critical ML features.
Languages:
Go, Java, Python, or any object oriented programming language
Frameworks:
Flink, Airflow, Spark for large scale batch & stream processing
Databases:
Familiarity with Vector, Lexical & Key-Value Databases
What You’ll Do
Lead the technical strategy, architecture, and implementation of Reddit’s next-generation ML Indexing & Retrieval engine, integrating capabilities across lexical and vector indexing, low‑latency retrieval, and emerging GenAI applications.
Partner closely with product engineers across Content Understanding, Search, Feeds, Ads, Growth, and Safety to deliver high-quality experiences.
Define best practices for observability, reliability, and operational excellence in large-scale distributed systems.
Mentor and guide engineers in designing scalable infrastructure and adopting robust DevOps and SRE principles.
Collaborate with infrastructure, and ML teams to ensure the platform evolves to meet the needs of Reddit’s growing user base and diverse content ecosystem.
Who You Might Be
10+ years of experience in software engineering, specializing in Indexing and Retrieval systems.
3+ years in technical leadership, architecting and scaling distributed systems in production environments.
Deep expertise in large-scale data platforms, including batch indexing and stream processing.
Proven experience designing and operating large-scale, low‑latency retrieval services.
Expertise in lexical and vector search retrieval technologies, such as Milvus, Vespa, or Elasticsearch.
Skilled in designing cloud-native architectures and managing containerized workloads using Kubernetes and AWS/GCP.
Adept at translating complex technical challenges into clear, actionable strategies.
Strong communicator and mentor who leads through collaboration, influence, and technical excellence.
Benefits
Comprehensive Healthcare Benefits and Income Replacement Programs
401(k) with Employer Match
Global Benefit programs that fit your lifestyle, from workspace to professional development to caregiving support
Family Planning Support
Mental Health & Coaching Benefits
Pay Transparency The base salary range for this position is: $279,200 - $390,900 USD
Equal Employment Opportunity Reddit is proud to be an equal opportunity employer, and is committed to building a workforce representative of the diverse communities we serve. Reddit’s employees must represent communities and redditors on the platform.
Our vision at Reddit is to have a workforce representative of people with different perspectives and experiences, including but not limited to gender, race and ethnicity, sexual orientation, age, national origin, religion, and political views.
Reddit is committed to providing reasonable accommodations for qualified individuals with disabilities and disabled veterans in our job application procedures. If, due to a disability, you need an accommodation during the interview process, please let your recruiter know.
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  • New York, New York, United States

Compétences linguistiques

  • English
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