Portrait of Theo Busiris

Paris, France

Fullstack, mobile and backend developer

I build clean, useful and ready to ship digital products.

Fullstack, mobile and backend. Co-founder of Vibaura, a padel ranking platform, and of Gosper, an AI gateway for companies.

Stylised padel player standing behind the net

I am already building under real constraints.

Useful products, sharp interfaces, backends that hold. Learning by shipping.

Same reflex since the start: learn fast, ship something concrete, fix the weak parts, repeat.

Epitech Paris on one side, a company on the other. At Vibaura I lead the tech: API contracts, the Flutter app, the deployment path.

Product-minded

Fullstack range

Execution habits

Current direction

Scaling Vibaura: cleaner architecture, stronger mobile flows, backend choices that carry real users.

Products that real people already pay for.

Live metrics and customer feedback from my FiveM store: delivery, support and iteration, well past school projects.

Loading live data

Customers served

--

Unique buyers from completed Tebex payments.

Sales completed

--

Live FiveM store sales volume.

FiveM store

Real customers, real support

A Tebex store taught me delivery, support, repeat buyers and long-term maintenance.

Client trust

Feedback counts as much as shipping

Reviews are pulled in automatically: quality and follow-up are part of the work.

Products, experiments and systems I have shipped.

Featured projectCo-founder and tech lead. Live at vibaura.app.

Vibaura

A padel platform: an Elo-style ranking, strictly validated match results, a social feed and partner-ready ranking widgets. Flutter app, Next.js site and back-office, NestJS API, all typed from one OpenAPI contract.

Objective

Padel has no trusted ranking. Scores live in group chats and no level is comparable.

Result / learning

A shipped platform where I own the architecture, the contracts and the release path.

NestJSPostgreSQLPrismaFlutterNext.jsOpenAPIDockerCI/CD
Vibaura preview
1 / 12

A practical stack, grouped by how I use it.

Frontend

Interfaces that stay readable and aligned with the product.

ReactNext.jsTypeScriptTailwind CSSUI architecture

Backend

APIs and server logic built to stay maintainable.

NestJSNode.jsExpressREST APIsSQL modeling

Low-level languages

Learning lower-level work: memory, performance, systems thinking.

CRust

Currently learning

Mobile

Product ideas shipped to mobile, focused on flow and usability.

FlutterReact NativeExpoMobile UX

Databases

Structuring and querying app data without overcomplicating it.

PostgreSQLMySQLPrismaData modeling

DevOps & deployment

From local development to a clean shipping path.

DockerCI/CDVercelVM deployment

AI & data

Analysis and ML when they actually explain or predict something.

PythonMachine LearningNLPStreamlitData exploration

Tools

The tooling that keeps engineering delivery practical.

GitGitHubFigmaNotionVS Code

Customer feedbacks

Loading reviewsAutomatic rotation

If this looks relevant, let’s talk.

Product, mission or internship. The form goes straight to my inbox.

Responses are handled through Formspree.