Anyscale
Medium (~250)
Fireworks AI
Small (~100)
Best For
Anyscale
Best for: Distributed systems and ML infrastructure engineers who want to work on the Ray open-source project and commercial AI infra
Fireworks AI
Best for: Engineers who want to work with ex-Meta AI infrastructure engineers on LLM inference
Ratings
AnyscaleFireworks AI
4.2
4.2
Overall
3.8
3.3
Work-Life Balance
4.2
4.3
Culture & Values
4.1
4.2
Comp & Benefits
4.0
4.2
Senior Mgmt
4.0
4.0
Career Opps
👍 84% Recommend
👤 87% CEO Approval (Robert Nishihara)
Culture Values
Anyscale only
🔓 Open Source🤝 Flat Hierarchy
Fireworks AI only
🧩 Wears Many Hats🎧 Deep Work / Low Meetings🌱 Learning & Growth
Shared
⚙️ Engineering-Driven🚀 Ship Fast & Iterate
Pros & Cons
Anyscale
- Brilliant colleagues from top companies
- Direct impact on AI/ML ecosystem
- Context switching between projects
- Documentation can lag behind development
Fireworks AI
- World-class team of ex-Meta AI infrastructure engineers — technically very strong peers
- Working on LLM inference optimization which is one of the hottest areas in AI infrastructure
- Early-stage startup intensity with long hours expected and high performance bar
- Small team and rapidly evolving product means less structure, process, and career laddering
Bottom Line
Anyscale
Choose Anyscale if you want to work on Ray — the dominant compute framework for AI workloads — with strong engineering culture and open-source DNA.
Fireworks AI
Choose Fireworks AI if you want to work with ex-Meta AI infrastructure engineers on cutting-edge LLM inference — but expect early-stage startup intensity and limited structure.
Open Roles
Anyscale
No open roles currently listed
Fireworks AI — 30 jobs
💻 Engineering
9
💼 Sales / GTM
5
📊 Data
1
🎨 Design
1
👤 HR / People
1
📣 Marketing
1
🧠 ML / AI
1
⚙️ Operations
1
📋 Product
1
Summary
Anyscale scores 4.2/5.0 on Glassdoor with a 3.8 work-life balance rating. Fireworks AI scores 4.2/5.0 overall with a 3.3 WLB. They’re tied on overall satisfaction.
Both companies share these culture values: Engineering-Driven, Ship Fast & Iterate. Anyscale also emphasizes Open Source, Flat Hierarchy. Fireworks AI also emphasizes Wears Many Hats, Deep Work / Low Meetings, Learning & Growth.
On the hiring front, Anyscale has 0 open roles and Fireworks AI has 30 open roles.