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NEXTMOVEFDE careers · United States
Fireworks AI

AI Field Engineer - AI Natives

AI summary of the role

Fireworks AI seeks an AI Field Engineer for its AI Natives segment, embedding with high-velocity AI-native customers to build production GenAI systems.

What you’ll do

  • Build end-to-end POCs and MVPs inside customer codebases and infrastructure.
  • Architect and size inference foundations for GenAI-native products to scale without infrastructure bottlenecks.
  • Run load tests and tune deployments for latency, throughput, and cost baselines.
  • Deploy and validate model families on inference frameworks (vLLM, SGLang) with optimal quantization and serving patterns.

What you’ll bring

  • 5+ years in a hands-on, customer-facing technical role (Forward Deployed Engineer, Applied AI Engineer, Solutions Architect, ML Engineer with field exposure, or technical founder).
  • Proven ability to build production software with customers—shipped code in someone else's production environment.
  • Strong Python skills; familiarity with Kubernetes and infrastructure engineering.
  • Working knowledge of the LLM stack: inference trade-offs, model serving, fine-tuning workflows (SFT minimum; DPO/RFT a plus).

Technologies

Python · Kubernetes · vLLM · SGLang · TensorRT-LLM · AWS · Azure · GCP · SFT · DPO · RFT · GPU infrastructure

About Fireworks AI

Inference cloud for open-source generative AI models with fine-tuning, RL, and evals; powers production AI for Cursor, Notion, Uber, DoorDash.

Series C

Source and classification

Implementation & delivery · Evidence for this classification:

suggests: we ran cross-region rollouts using 98% sparse weight deltas and published what we learned. (blog) Open source agents with frontier advisors: matching frontier performance through training and harness engineering. (blog) The fine-tuning bottleneck is not the algorithm: integration friction and iteration speed are what actually stall teams; we documented the patterns across dozens of customer engagements. (blog) The Role: AI Field Engineers at Fireworks are the technical tip of the spear. You embed with our most ambitious customers and technology partners to turn complex AI problems into production systems, fast. The role sits at the intersection of engineering, product, and customer delivery. You are hands-on-keyboard building POCs, MVPs, and production integrations, while also holding your own in executive-level conversations about architecture, strategy, and business
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