Reddit, Inc.

Dive into anything

Senior Staff Machine Learning Engineer, Search Platform

Machine Learning EngineerMachine Learning EngineerFull TimeRemoteTeam 501-1,000Since 2005H1B No SponsorCompany SiteLinkedIn

Location

United States

Posted

143 days ago

Salary

$266K - $372.4K / year

Bachelor Degree10 yrs expEnglishAWSCloudDistributed SystemsElastic SearchGoogle Cloud PlatformKubernetes

Job Description

• Lead the technical strategy, architecture, and implementation of Reddit’s next-generation search engine, integrating lexical, vector retrieval and Gen AI search applications. • Partner closely with product engineers across Search, Feeds, Ads, Growth, and Safety to deliver high-quality, low-latency search and retrieval experiences. • Define best practices for observability, reliability, and operational excellence in large-scale distributed systems. • Mentor and guide engineers in designing scalable search infrastructure and adopting robust DevOps and SRE principles. • Collaborate with infrastructure, and ML teams to ensure the search platform evolves to meet the needs of Reddit’s growing user base and diverse content ecosystem.

Job Requirements

  • 10+ years of experience in software engineering, specializing in cloud-native search and retrieval systems.
  • 3+ years in technical leadership, architecting and scaling distributed systems in production environments.
  • Deep expertise in lexical and vector retrieval technologies, such as Milvus, Vespa, and Elasticsearch, with strong knowledge of Lucene and Tantivy internals.
  • Skilled in designing cloud-native architectures and managing containerized workloads using Kubernetes and AWS/GCP.
  • Proven track record in building real-time data pipelines, indexing frameworks, and hybrid (lexical + vector) search architectures.
  • 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
  • 401k Match
  • Family Planning Support
  • Gender-Affirming Care
  • Mental Health & Coaching Benefits
  • Flexible Vacation & Reddit Global Days off
  • Generous paid Parental Leave
  • Paid Volunteer time off

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