Web Application Development
We design and build web applications end to end: SaaS products, customer portals, and internal dashboards. Elvoria Technologies is a small, senior EU-based studio working with clients worldwide, so the engineers you speak to during scoping are the ones who write the code. We keep teams small, communication direct, and scope explicit.
What we do
Our core work is custom web applications with real business logic behind them: authentication and roles, billing, reporting, admin tooling, and integrations with the systems you already run. We build new products from scratch and extend existing ones.
Our default stack is Next.js and React with TypeScript on the frontend, Node.js (often NestJS) on the backend, and PostgreSQL for data. Where a client team already works in Vue, Angular, Java, .NET, Python, or Go, we adapt to that rather than forcing a rewrite. We deploy to AWS or the infrastructure you prefer, with Docker and CI/CD via GitHub Actions. We use AI-assisted development tools where they speed us up, but every line that ships is reviewed and owned by a senior engineer.
In scope
- SaaS products, from first version to multi-tenant platforms
- Customer and partner portals with roles and permissions
- Internal dashboards, admin panels, and reporting tools
- Rebuilds and extensions of existing web applications
How we work
Every project follows the same basic shape. We keep the phases visible so you always know where the work stands and what comes next.
1. Scoping
We work through your requirements together, identify the risky parts early, and produce a written scope with a cost range and timeline before any build work starts.
2. Design & architecture
Data model, API design, and key screens are sketched and agreed before implementation. For larger builds we ship a thin walking skeleton first so you can react early.
3. Iterative delivery
We deliver in short increments to a staging environment you can access throughout. You see working software regularly, not a demo at the end.
4. Handover
We deploy to production, walk your team through the codebase and operations, and remain available for follow-up questions after the project closes.
What you get
You own everything we produce. There is no lock-in to our tooling or our availability.
Source code
Full ownership, delivered in your own Git repository from day one.
Documentation
A README that gets a new developer running locally, plus architecture notes and API documentation.
Deployment
A working production deployment with CI/CD pipelines, environment configuration, and deploy instructions.
Handover session
A recorded walkthrough of the codebase and operational tasks for your team.
Typical engagements
Most web application projects with us run from roughly six weeks for a focused internal tool to several months for a full SaaS product. Common shapes include:
New SaaS product
From scoped concept to a production first version with auth, billing, and an admin backend.
Client portal
A secure portal on top of your existing systems, so customers can self-serve instead of emailing.
Operations dashboard
Internal dashboards that pull data from several sources into one place your team actually uses.
Frequently asked questions
How long does a typical web application take to build?
A focused internal tool is usually six to ten weeks. A first SaaS version is more often three to five months. We give a concrete estimate after scoping, and we would rather tell you an uncomfortable number up front than surprise you later.
Who owns the code and the infrastructure?
You do, from the first commit. We work in your Git repository and your cloud accounts wherever possible, so nothing needs to be transferred at the end.
Can you work alongside our in-house developers?
Yes. Many engagements are mixed teams. We follow your review process and coding conventions, and we are comfortable being reviewed as well as reviewing.
What happens after launch?
You can take the project fully in-house, or we can continue under a maintenance retainer covering monitoring, dependency updates, and small improvements. See our maintenance and support service for details.
Sounds like your project?
Tell us what you need and we’ll reply with a clear next step: questions we’d ask, a rough scope, and an honest view of whether we’re the right fit.
Other services
- Mobile App Development
Cross-platform and native mobile app development for clients worldwide: React Native, Flutter, Swift, and Kotlin, including store submission and maintenance.
- Maintenance & Support
Ongoing software maintenance for businesses worldwide: monitoring, dependency updates, security patches, and small improvements under a clear monthly retainer.
- Bug Fixing & Codebase Rescue
We take over troubled, inherited, and AI-generated codebases for companies worldwide: audit, stabilize, and maintain — with honest quoting at each step.
- API Development & Integration
API development and systems integration for businesses worldwide: internal REST and GraphQL APIs, third-party integrations, and careful data migrations.
- UI/UX & Frontend Modernization
Frontend modernization for products worldwide: interface redesigns, web performance, accessibility improvements, and responsive fixes — without a risky rewrite.