Qraft
  • What we do
  • Work
  • Team
  • Cowork
  • FR
  • /EN
Let’s talk

Billi

Running freelance practices and interim management: contracts, invoices, expense claims and timesheets, automated.

billi.so ↗
Billi
Screenshot of the Billi project
Screenshot of the Billi project
← All our work

The project

Billi automates the paperwork that agencies and their contractors would otherwise do by hand. The agency side manages contractors, approves expense claims, edits assignments, generates contracts and tracks signatures. The contractor side is timesheets, expense claims and invoices. Every month the contractor’s timesheet goes out to the client for electronic signature (YouSign), and approving it generates a PDF invoice that is sent by email. Contracts and amendments are generated automatically at every assignment or change, from the agency’s own templates.

The hard parts

  • —Reliable, fast PDF generation at scale: grover and Puppeteer in a headless Chromium, orchestrated by Sidekiq workers so that dozens of documents generate in parallel

What Qraft did

Qraft designed and built the application, fully responsive on web, tablet and mobile; UX and UI design by Spellbind.

Stack

  • Rails API
  • Sidekiq
  • PostgreSQL
  • Redis
  • Next.js
  • TypeScript
  • Tailwind CSS
  • shadcn/ui
  • Scalingo
  • AWS S3

Integrations

  • YouSign
  • Postmark

Got a product to ship?

Talk to the team
Qraft
  • What we do
  • Work
  • Team
  • Cowork

Qrafting agentic software since 2020. Designed, written and coded at 36 rue Sainte, Marseille, by Nicolas, Alexis and Adrien. Write to us: hello@qraft.tech. © Qraft 2026.