Full-Stack Web Application Development

Full-stack means one developer is accountable from the database schema to the button a user clicks. In practice that is four layers: a relational data model, a backend that enforces the business rules and exposes an API, a frontend that consumes it, and the deployment and hardening work that puts the result in front of real users.

The reason this matters commercially is that most web projects do not fail inside a layer. They fail in the seams — an API contract that drifts from what the frontend expects, an auth model that was never designed for the roles the business actually has, a schema that cannot support the reporting someone promised. One accountable developer removes the handoffs where those failures live.

Backends are Java with Spring Boot, or .NET where an existing estate calls for it. Frontends are React or Angular. Data sits in MySQL or SQL Server. That is not a menu — it is the stack I have shipped repeatedly to production, and I would rather be genuinely deep in it than nominally available in ten.

Legionella 360 runs Angular with NgRx and AG-Grid over a Java 21 and Spring Boot backend on MySQL. The music-broadcast platform modernization runs Java 21 and Spring Boot 3 with a React 18 admin panel, native SwiftUI and Kotlin clients, and an owned analytics stack on Azure. Hop Orbits pairs Spring Boot with WebSocket messaging for real-time buyer and seller communication.

Three systems, each solving a different shape of problem.

Yes, and multi-tenancy is the decision to get right first. Legionella 360 was built multi-tenant from the start: each customer facility sees only its own risk assessments and sampling records, enforced at the data layer rather than hidden in the UI. Retrofitting that separation into a single-tenant application later is one of the more expensive rewrites in this business.

The same is true of roles. Five user types with genuinely different permissions is a design constraint, not a settings screen. If you know your product will have inspectors and administrators and read-only auditors, that belongs in the first schema, not the third release.

Yes — that is what the broadcast platform engagement is. The original system was a desktop player and a fleet of remotely controlled stations driven by a scheduler; the work has been to modernize around it without stopping it, adding a mobile API, an admin panel and an analytics stack the operator owns rather than rents.

Takeover work starts with reading, not writing. Before proposing changes I want to understand the deployment, the data model and what the system is actually load-bearing for. Rewrites are occasionally correct and usually premature.

You send a brief; you get a fixed-bid quote within 48 hours. From there it is either a fixed-scope project, an ongoing retainer, a white-label arrangement if you are an agency, or straight team augmentation. Most new projects start within one to two weeks.

Deployment and handoff are included rather than quoted separately. A system you cannot run without me is not finished.