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Fireworks AI Tech Stack

Inference platform for open-source LLMs with global GPU distribution

Software Development San Mateo, CA 51–200 employees Founded 2022 Privately Held

Fireworks AI operates an inference platform optimized for open-source models across distributed cloud infrastructure (PyTorch, Kubernetes, multi-cloud: AWS, GCP, Azure). The tech stack—Triton, CUDA, ROCm, NVIDIA Nsight—signals heavy focus on GPU optimization and low-latency serving. Active projects span function calling, multimodal models, and cross-region sparse weight deltas, while pain points center on scaling model serving and inference latency. Sales and marketing hiring is proportional to engineering, indicating a product-led but scaling-sales motion.

Tech Stack 57 technologies

Core StackPyTorch Vertex AI Kubernetes AWS TensorFlow SageMaker Python Docker Greenhouse Salesforce HubSpot Gong Zapier Figma BigQuery dbt Node.js QuickBooks GCP Azure Discord CUDA ROCm NVIDIA Nsight Triton GPU LeadIQ Outreach Apollo Framer+27 more

What Fireworks AI Is Building

Challenges

  • Scaling talent teams
  • Scaling revenue accounting processes
  • Scalable model serving
  • Low-latency inference
  • Optimizing recruiting operations
  • Fine-tuning bottleneck
  • Lack of ownership of enablement foundation
  • Network performance tuning
  • Customer onboarding challenges
  • Fine-tuning workflow challenges

Active Projects

  • Function calling
  • Multimodal models
  • Cross-region rollouts with sparse weight deltas
  • Certification program
  • Fine-tuning bottleneck documentation
  • Training-inference parity in moe models
  • Proof-of-concepts
  • Large-scale model training infrastructure
  • Distributed training pipelines
  • Training performance optimization

Hiring Activity

Accelerating35 roles · 20 in 30d

Department

Engineering
10
Sales
5
Marketing
4
HR
3
Finance
2
Product
2
Support
2
Data
1

Seniority

Senior
19
Mid
5
Lead
4
Manager
2
Director
1
Junior
1
Staff
1
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About Fireworks AI

Fireworks AI provides an inference platform for building and deploying AI applications on open-source models. Founded in 2022, the company operates globally distributed cloud infrastructure across AWS, GCP, and Azure, targeting mid-market to enterprise engineering and AI teams. The platform handles fine-tuning, model serving, and multi-region deployments. Fireworks is based in San Mateo, CA, and is privately held with 51–200 employees. Current hiring emphasizes senior engineers and sales roles, with active focus on scaling both technical infrastructure and go-to-market operations.

HeadquartersSan Mateo, CA
Company Size51–200 employees
Founded2022
Hiring MarketsUnited States

Frequently Asked Questions

What tech stack does Fireworks AI use?

PyTorch, Kubernetes, Triton, CUDA, ROCm, TensorFlow, and NVIDIA Nsight on AWS, GCP, and Azure. Python and Node.js for backend services. Salesforce, HubSpot, and Outreach for sales infrastructure.

What is Fireworks AI working on?

Function calling, multimodal models, cross-region rollouts with sparse weight deltas, fine-tuning infrastructure, distributed training pipelines, and low-latency inference optimization for open-source LLMs.

How this profile is built

Fireworks AI's technology stack, projects, and hiring signals are inferred from public hiring and company data — career pages, public listings, and company web presence — then clustered and de-duplicated. Figures are estimates that refresh over time. Read our full methodology →

This is not an official vendor or customer list. It is a technology-adoption signal inferred from public data, intended for B2B research.