Backend Software Engineer, Jobs Platform

OpenAI OpenAI · AI Frontier · San Francisco, CA · Applied AI

Backend Software Engineer to build core systems for search, matching, and recommendation for an AI-powered job platform. This role involves productionizing ML models, running experiments on ranking and recommendation strategies, and building scalable systems that support millions of users. Experience with vector databases, search indices, and ML concepts is required.

What you'd actually do

  1. Design and ship core systems for search, matching, and recommendation, including candidate-job ranking, retrieval, and personalization pipelines
  2. Partner closely with research and applied ML teams to productionize models and integrate them into high-scale backend systems
  3. Run experiments and iterate on ranking models and recommendation strategies to improve long-term success metrics
  4. Build high-trust, scalable systems that support millions of job seekers and employers
  5. Work closely with product, design, research, and ops to create human-centered experiences powered by AI

Skills

Required

  • backend/system design skills
  • high-scale data and retrieval systems
  • production machine learning systems
  • vector databases
  • search indices
  • ML concepts
  • collaboration with ML or research teams

Nice to have

  • personalization pipelines
  • ranking models
  • recommendation strategies

What the JD emphasized

  • 8+ years of software engineering experience building highly-available user-facing products
  • Have extensive prior experience building and maintaining production machine learning systems.
  • Have prior experience working with vector databases, search indices, or other data stores for search and retrieval use cases

Other signals

  • building AI products that directly change people’s lives
  • career agent that understands your skills, helps you prove them through certifications, and works nonstop to unlock opportunities
  • worker and employer agents match on real capabilities, not job boards