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AI Infrastructure Engineer - PlayerZero

AI Infrastructure Engineer - PlayerZero

HireOTSSan Francisco, CA, United States
30+ days ago
Job type
  • Full-time
Job description

A stealth-stage AI infrastructure company is building a self-healing system for software that automates defect resolution and development. The platform is used by engineering and support teams to :

  • Autonomously debug problems in production software
  • Fix issues directly in the codebase
  • Prevent recurring issues through intelligent root-cause automation

The company is backed by top-tier investors such as Foundation Capital, WndrCo, and Green Bay Ventures , as well as prominent operators including Matei Zaharia, Drew Houston, Dylan Field, Guillermo Rauch , and others.

We believe that as software development accelerates, the burden of maintaining quality and reliability shifts heavily onto engineering and support teams. This challenge creates a rare opportunity to reimagine how software is supported and sustained -with AI-powered systems that respond autonomously.

About the Role

We're looking for an experienced backend / infrastructure engineer who thrives at the intersection of systems and AI - and who loves turning research prototypes into rock-solid production services. You'll design and scale the core backend that powers our AI inference stack - from ingestion pipelines and feature stores to GPU orchestration and vector search.

If you care deeply about performance, correctness, observability, and fast iteration , you'll fit right in.

What You'll Do

  • Own mission-critical services end-to-end - from architecture and design reviews to deployment, observability, and service-level objectives.
  • Scale LLM-driven systems : build RAG pipelines, vector indexes, and evaluation frameworks handling billions of events per day.
  • Design data-heavy backends : streaming ETL, columnar storage, time-series analytics - all fueling the self-healing loop.
  • Optimize for cost and latency across compute types (CPUs, GPUs, serverless); profile hot paths and squeeze out milliseconds.
  • Drive reliability : implement automated testing, chaos engineering, and progressive rollout strategies for new models.
  • Work cross-functionally with ML researchers, product engineers, and real customers to build infrastructure that actually matters.
  • You Might Thrive in This Role If You :

  • Have 2-5+ years of experience building scalable backend or infra systems in production environments
  • Bring a builder mindset - you like owning projects end-to-end and thinking deeply about data, scale, and maintainability
  • Have transitioned ML or data-heavy prototypes to production , balancing speed and robustness
  • Are comfortable with data engineering workflows : parsing, transforming, indexing, and querying structured or unstructured data
  • Have some exposure to search infrastructure or LLM-backed systems (e.g., document retrieval, RAG, semantic search)
  • Bonus Points

  • Experience with vector databases (e.g., pgvector, Pinecone, Weaviate) or inverted-index search (e.g., Elasticsearch, Lucene)
  • Hands-on with GPU orchestration (Kubernetes, Ray, KServe) or model-parallel inference tuning
  • Familiarity with Go / Rust (primary stack), with some TypeScript for light full-stack tasks
  • Deep knowledge of observability tooling (OpenTelemetry, Grafana, Datadog) and profiling distributed systems
  • Contributions to open-source ML or systems infrastructure projects
  • Let me know if you'd like a version optimized for careers pages, job boards, or stealth pitch decks.

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    Infrastructure Engineer • San Francisco, CA, United States

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