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NEXTMOVEFDE careers · United States
Fireworks AI

AI Field Engineer - Enterprise

AI summary of the role

Fireworks AI seeks an AI Field Engineer for the Enterprise track to embed with large customers and technology partners, building production GenAI systems end-to-end.

What you’ll do

  • Build end-to-end POCs and MVPs alongside customer engineering teams, working inside their codebases and infrastructure.
  • Architect inference foundations and size deployments for customers whose core product is built on GenAI.
  • Run load tests and establish latency, throughput, and cost baselines against realistic customer traffic profiles.
  • Guide customers on model selection, fine-tuning strategy (SFT, DPO, RFT), and evaluation methodology.

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).
  • Demonstrated ability to build production software with customers and ship code running in someone else's production environment.
  • Strong Python skills and familiarity with Kubernetes and infrastructure engineering.
  • Working knowledge of the LLM stack: inference trade-offs, model serving, fine-tuning workflows (SFT at minimum; DPO/RFT a strong plus).

Technologies

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

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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