Job Details

AI Infrastructure Engineer

  2025-10-28     StackAI     San Francisco,CA  
Description:

About the Role

We're hiring an AI Infrastructure Engineer to shape and scale the backend systems that power our AI platform. As a Series A company, your work will be foundational, enabling safe, efficient, and reliable AI workflows from end to end.

What You'll Do

  • Design and implement scalable backend architectures for AI workloads (inference, orchestration, monitoring).

  • Own distributed job orchestration with Temporal and related systems.

  • Improve data pipeline performance by designing smarter caching strategies (e.g., file deduplication, hot/cold storage, Redis caching layers) to reduce redundant compute and API calls.

  • Build observability, monitoring, retries, and fault tolerance into all workflows.

  • Manage infrastructure reliability, incident response, and performance.

  • Develop tooling and platform infrastructure to support rapid growth.

  • Partner with ML engineers to bring models to production at scale.

What We're Looking For

  • 4+ years of backend engineering (Python is a must).

  • Strong background in distributed systems, job orchestration, and task queues.

  • Deep knowledge of concurrency, parallelism, and multithreading—including async/await, event loops, thread pools, synchronization primitives, deadlocks, and race conditions—is a must. You should know how to design systems that maximize throughput without sacrificing correctness or safety.

  • Hands-on experience with Temporal, Redis, Airflow, Celery, RabbitMQ (or similar).

  • Experience with LLM serving and routing fundamentals (rate limiting, streaming, load balancing, budgets).

  • Comfortable with containers & orchestration: Docker, Kubernetes.

  • Familiarity with cloud platforms (AWS/GCP) and IaC (Terraform).

  • Experience with multiple storage systems: S3, Postgres, MongoDB, Redis, and Elasticsearch.

  • Track record scaling systems in startups or fast-paced environments.

  • Understanding of deploying, monitoring, and optimizing AI/ML systems in production with strong CI/CD practices.

Why You'll Love Working Here

  • Play a foundational role at a fast-growing Series A startup that is shaping the future of AI in enterprise workflows.

  • Collaborate across Product, ML, and Platform teams, being the bridge between AI logic and scalable execution.

  • Build infrastructure that enables real value for large enterprises: low-code, secure, and scalable AI workflows.

  • Join a company that's scaling thoughtfully and values developer experience.

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