Jobs · Engineering · California

Member of Technical Staff - Inference

Prime Intellect · San Francisco, CA · 2 mo ago
HybridEngineering$150/hrFull-time

Core Technical Responsibilities

  • Build a multi-tenant LLM serving platform that operates across our cloud GPU fleets.
  • Design placement and scheduling algorithms for heterogeneous accelerators.
  • Implement multi-region/zone failover and traffic shifting for resilience and cost control.
  • Build autoscaling, routing, and load balancing to meet throughput/latency SLOs.
  • Optimize model distribution and cold-start times across clusters.
  • Integrate and contribute to LLM inference frameworks such as vLLM, SGLang, TensorRT-LLM.
  • Optimize configurations for tensor/pipeline/expert parallelism, prefix caching, memory management and other axes for maximum performance.
  • Profile kernels, memory bandwidth and transport; apply techniques such as quantization and speculative decoding.
  • Develop reproducible performance suites (latency, throughput, context length, batch size, precision).
  • Embed and optimize distributed inference within our RL stack.
  • Establish CI/CD with artifact promotion, performance gates, and reproducible builds.
  • Build metrics, logs, tracing; structured incident response and SLO management.
  • Document architectures, playbooks, and API contracts; mentor and collaborate cross-functionally.

Technical Requirements

  • Building ML Systems at Scale: 3+ years building and running large-scale ML/LLM services with clear latency/availability SLOs.
  • Inference Backends: Hands-on with at least one of vLLM, SGLang, TensorRT-LLM.
  • Distributed Serving Infra: Familiarity with distributed and disaggregated serving infrastructure such as NVIDIA Dynamo.
  • Inference Internals: Deep understanding of prefill vs. decode, KV-cache behavior, batching, sampling, speculative decoding, parallelism strategies.
  • Full-Stack Debugging: Comfortable debugging CUDA/NCCL, drivers/kernels, containers, service mesh/networking, and storage, owning incidents end-to-end.
  • Infrastructure Skills: Python: Systems tooling and backend services. PyTorch: LLM Inference engine development and integration, deployment readiness. Cloud & Automation: AWS/GCP service experience, cloud deployment patterns. Kubernetes: Running infrastructure at scale with containers on Kubernetes. GPU & Networking: Architecture, CUDA runtime, NCCL, InfiniBand; GPU-aware bin-packing and scheduling across heterogeneous fleets.

Nice to Have

  • Kernel-Level Optimization: Familiarity with CUDA/Triton kernel development; Nsight Systems/Compute profiling.
  • Systems Performance Languages: Rust, C++.
  • Data & Observability: Kafka/PubSub, Redis, gRPC/Protobuf; Prometheus/Grafana, OpenTelemetry; reliability patterns.
  • Infra & Config Automation: Terraform/Ansible, infrastructure-as-code, reproducible environments.
  • Open Source: Contributions to serving, inference, or RL infrastructure projects.

What we offer

  • Cash Compensation Range of $150-300k with significant equity incentives.
  • Flexible work arrangement (remote or San Francisco office).
  • Full visa sponsorship and relocation support.
  • Professional development budget.
  • Regular team off-sites and conference attendance.
  • Opportunity to shape decentralized AI and RL at Prime Intellect.

Growth Opportunity

  • You'll join a team of experienced engineers and researchers working on cutting-edge problems in AI infrastructure.
  • We believe in open development and encourage team members to contribute to the broader AI community through research and open-source contributions.
  • We value potential over perfection.

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