Alexandre Douillard, React Fullstack Web Developer

Presentation

Who am I?

Full-stack developer with 5 years of experience in web application design, development, and optimization. Skilled in creating scalable, high-performance architectures, I excel in both front-end and back-end development. Adaptable and quick to learn new technologies, I thrive in fast-paced environments and have a passion for solving complex problems. Focused on building tailored, user-centric applications from initial concept to production deployment.

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Technical skills

Web development

HTML
CSS

Programming languages

Javascript
Typescript

Frontend

React.js
Next.js
Redux
Webpack

Backend

Node.js
Express.js
Socket.io
Sequelize

DevOps

Digital Ocean
Docker
GitLab

Databases

PostgreSQL
MySQL

Projects

A real-time microservice to stream AI answers word by word

Context: The rise of LLMs opened new ways to make sense of survey results: comment summaries, trends, action plans.
Problem: An LLM generates its answer word by word, over several seconds. Showing it at the same pace called for a real-time connection all the way to the browser.

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Quebec's Law 25: an immutable audit log and a full data lifecycle

Context: An AI-powered writing correction platform handles data about minor students, subject to Quebec's Law 25.
Problem: The privacy impact assessment required tracing sensitive actions and controlling how long data is kept.

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Observability on my VPS: 15% of RAM reclaimed

Context: My VPS hosts this portfolio and several other applications, each in its own Docker container, with no central monitoring.
Problem: Sporadic latency, slowdowns, opaque activity: no way to tell which application was using what.