Stellia.ai: a React dashboard for AI-generated questions and answers

I owned the frontend of Stellia.ai's React dashboard for managing the questions and answers its AI draws from document collections. I built it test first with Vitest and Cypress, in several languages, with PDF documents generated in React PDF.

Client: Stellia.ai (incubated at École Polytechnique)
Role: Senior frontend developer, React
Duration: 7 months, July 2022 to January 2023
Setting: Freelance, fully remote, technical autonomy on the frontend

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001·Context

Managing what an AI analysis produces

Stellia.ai is a startup specialising in AI-powered corpus analysis. I worked directly with its product team and its AI team on the dashboard.

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002·Approach

How I worked for Stellia.ai

Brief and my role: I owned the dashboard's frontend for the whole engagement, fixing bugs and adding features as it evolved.
Constraints: A dashboard that kept changing with the product, available in several languages, and able to produce PDF documents.
Technical decisions: React with Redux and a GraphQL API, an interface built with Storybook and Tailwind CSS, React PDF for the documents and i18n across every user journey.
Checks and releases: Test-driven development: unit tests with Vitest, end-to-end tests with Cypress and a full CI/CD pipeline.

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003·Deliverables

What I delivered for Stellia.ai

React dashboardThe dashboard's frontend in React and TypeScript, developed test first
Interface and PDF documentsStorybook and Tailwind CSS for the interface, React PDF for the documents
State and APIA Redux architecture for state, over the GraphQL API
InternationalisationEvery user journey internationalised (i18n)