Nicolas Provost

Developer specializing in the design of management software (ERP), with an approach focused on software architecture and system consistency.

I design robust and scalable applications by relying on proven principles: layered architecture, separation of concerns (SRP), object-oriented programming (OOP), and clear isolation of business logic.

My work is part of a pragmatic domain-oriented design (DDD) logic, with explicit business entities and centralization of rules through dedicated services (calculations, validation, pricing, flow management, and transactional consistency).

I primarily work on complex business issues: deterministic pricing engines, Multi-Unit Management and conversions, packaging hierarchies, business valuation, contextual calculations, invoicing, VAT, currencies, and data consistency throughout the entire application lifecycle.

I pay particular attention to the maintainability and readability of systems:

- Decoupled and lightweight UI (Passive View)

- Isolated and reusable business logic

- Control of side effects

- Business Pre-calculation

- Strong validation and immutability after validation.

My Goal is to design reliable, performant, and durable systems, capable of handling high business complexity while remaining consistent, understandable, and maintainable over time.