# Sidian

> Sidian builds Sid, an AI system that helps structural engineering firms retrieve project knowledge, create preliminary structural models, automate design checks, and preserve engineering decisions.

Sidian's public website explains how Sid works, what each workflow does, and where a licensed engineer must review the output.

Last reviewed: 2026-08-01.

## Product

- [Sidian](https://sidian.ai/): Product overview, security, pricing, and frequently asked questions.
- [Full product context](https://sidian.ai/llms-full.txt): Detailed, machine-readable product, workflow, integration, security, and company context.
- [Pricing](https://sidian.ai/pricing.md): Machine-readable summary of Sid Trials, Standard, and on-premises pricing.
- [Careers at Sidian](https://sidian.ai/careers/): Current hybrid engineering openings in Waterloo, Ontario.

## Open roles

- [Lead Data Engineer](https://sidian.ai/careers/lead-data-engineer/): Build multimodal ingestion pipelines, knowledge graphs, and retrieval systems.
- [Full-Stack Engineer](https://sidian.ai/careers/full-stack-engineer/): Build Python and TypeScript systems, intelligent agents, integrations, and React products.
- [Lead AI/ML Engineer](https://sidian.ai/careers/lead-ai-ml-engineer/): Build vision, graph, and language models for engineering data.

## Contact

- [Email Sidian](mailto:admin@sidian.ai): Product, trial, demo, pricing, and on-premises inquiries.
- [Book a demo](https://sidian.ai/calendly/): Schedule a product walkthrough.