Writer

The Full-Stack Enterprise AI Platform

The consensus on Writer: Choose Writer if you want to build proprietary LLMs and enterprise AI systems from the ground up — but expect an intense, high-expectations environment.

2020
Founded
San Francisco
Headquarters
~400
Employees
$1.9B
Valuation
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Culture Overview

What it's really like to work at Writer

Writer isn't wrapping someone else's API and calling it AI. Founded by May Habib and Waseem AlShikh, the company builds its own Palmyra family of large language models from scratch, trains them on enterprise data, and ships a full-stack platform that Fortune 500 companies use to automate knowledge work. The engineering culture is defined by genuine technical depth — you're training models, building inference infrastructure, and designing agentic workflows, not stitching together third-party services. Writer open-sources its framework and smaller models, giving back to the community while competing at the enterprise tier. The trade-off is intensity: the bar is high, the pace is fast, and work-life balance is a known weak spot.

Glassdoor Ratings

Writer Glassdoor Ratings & Employee Reviews

3.5
Overall Glassdoor Score
Based on 29 reviews
Culture & Values 3.4
Work-Life Balance 2.7
Career Opportunities 3.6
Overall Rating 3.5
62% Recommend to a Friend
Employee Review Themes

Working at Writer: Pros & Cons

What employees love

  • Proprietary LLMs (Palmyra) — genuine AI engineering, not API wrappers
  • Visionary leadership with strong enterprise traction and major customers
  • Open-source commitment — Writer Framework and Palmyra models are public
  • Named an Emerging Leader by Gartner across three generative AI categories

What could be better

  • Work-life balance is a real concern — Glassdoor WLB score of 2.7/5
  • Very high expectations with limited room for error
  • Growing middle management layer creating organizational friction
  • Some reviews mention inflexibility around personal commitments
Engineering Culture

How the engineering team works

Tech Stack

Python PyTorch TypeScript Kubernetes

Palmyra LLMs

Writer trains its own family of large language models (Palmyra) optimized for enterprise use cases. Engineers work on pre-training, fine-tuning, RLHF, and inference optimization — real ML engineering.

Open Source

Writer Framework is an open-source Python framework for building AI apps. Palmyra Small and Base models are publicly available. View on GitHub →

Enterprise Platform

Full-stack AI platform including Knowledge Graph, AI Studio, and agentic workflows. Engineers build the entire stack from model training to production deployment for Fortune 500 clients.

Open Positions

Join the Writer team

Explore open roles at Writer below.

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