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RedditRedditUnited States

Staff Software Engineer, Community Builders

Leads backend architecture and technical strategy for Reddit's community growth team, partnering on ML-powered recommendation systems for feeds/search/onboarding to drive engagement. Requires 7+ years experience with ranking/personalization, data-driven experimentation, and cross-team collaboration.

217k – 304k/yr
Remote7+ YOEBackend Engineering

About the role

Responsibilities

  • Define and accelerate backend architecture for growth levers including feeds, search, and onboarding surfaces to drive community engagement.
  • Partner with Engineering Manager to cultivate growth engineering mindset focused on experimentation, velocity, and reliability.
  • Collaborate with engineering teams (Relevance, Feeds, Search) on ML-powered systems for community surfacing.
  • Establish instrumentation and experimentation foundations for A/B tests, using metrics from funnels and retention to inform architecture.
  • Serve as engineering voice in cross-functional partnerships with Product, Design, Data Science; align on roadmaps and technical feasibility.
  • Advocate for reliability, scalability, and maintainability; lead design reviews and establish engineering patterns.

Requirements

  • 7+ years of experience steering cross-team projects solving business problems.
  • Systems thinker integrating code, product, and team dynamics; strategic planning and mentoring.
  • Data-informed with focus on metrics, experimentation, funnels, and retention.
  • Comfortable with growth-team ambiguity, fast prototyping, and pivoting based on data.
  • Strong communication to distill technical trade-offs for diverse audiences.
  • Experience with ranking, recommendations, personalization, ML-heavy products, backend architectures, retrieval systems, inference pipelines, candidate generation, scoring, Two-Tower models.

Benefits

  • Comprehensive healthcare and income replacement.
  • 401k with employer match.
  • Global benefits including workspace, professional development, caregiving.
  • Family planning, gender-affirming care, mental health support.
  • Flexible vacation, paid volunteer time, generous parental leave.

Skills

Backend ArchitectureMachine LearningRecommendationsPersonalizationRetrieval SystemsInference PipelinesA/B TestingExperimentationRanking SystemsTwo-Tower Models
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