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Web Applications

Web apps built for real usage, not just a demo day launch.

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Typical timeline6–14 weeks
EngagementFixed scope or monthly retainer
TeamFrontend lead, backend engineer, QA, PM
Software Applications

Web Applications, explained.

Web Application Development is the design, engineering, and deployment of software that runs in a browser and behaves like a product, not a brochure: dashboards, portals, internal tools, and customer-facing platforms. It matters because most businesses now run core operations through a browser tab, and a slow, brittle, or inconsistent app costs real time and trust with every user who opens it.

Esscentra builds web apps as single-page applications or server-rendered apps depending on what the workload actually needs, backed by a reusable component design system so screens stay visually consistent as the product grows. We implement authentication and role-based access control from day one, wire in real-time features like live updates and notifications where the workflow calls for them, and connect the app to whatever internal or third-party systems it needs to talk to.

The result is an app your team can actually run a business on: fast to load, consistent to use, and safe to extend. It fits companies replacing a clunky legacy tool, startups shipping their first product, and teams that need a customer or partner portal that looks and feels deliberate rather than assembled from templates.

Who it's for

Built for teams like these.

  • 01

    Founders replacing spreadsheets or email threads with a proper internal tool.

  • 02

    Companies that need a customer or partner-facing portal with login and permissions.

  • 03

    Product teams scaling past their first prototype and needing a maintainable component system.

  • 04

    Businesses whose current web app is slow, inconsistent, or hard to extend.

How we work

6 steps, from first call to launch.

  1. 01

    Requirements & information architecture

    We map user roles, core flows, and screen inventory before any design work starts.

  2. 02

    Component design system

    We define reusable UI components, spacing, and states so every screen is built from the same visual vocabulary.

  3. 03

    Frontend & backend build

    Parallel development of the interface and the APIs or services it depends on.

  4. 04

    Auth & access control

    Login, sessions, and role-based permissions are implemented and tested against real user roles.

  5. 05

    CI/CD & automated testing

    Pipelines run linting, tests, and preview deploys on every change before code reaches production.

  6. 06

    Launch & handover

    Production deployment, monitoring setup, and a walkthrough of the codebase and admin controls.

What you get

Delivered, documented, yours.

  • Deployed web application on your chosen infrastructure
  • Source code repository with commit history
  • Component design system and style guide
  • CI/CD pipeline configuration
  • Automated test suite
  • Technical documentation for setup and deployment
  • Admin and user role configuration guide
Technologies we use

Our usual stack.

We confirm the final choice with you during scoping.

  • System design
  • React
  • Next.js
  • Vue.js
  • TypeScript
  • Tailwind CSS
  • Node.js
  • GraphQL
  • PostgreSQL
  • Redis
  • Docker
  • AWS
Questions

Questions about web applications.

How much does web application development cost?
Cost depends on the number of user roles, screens, and integrations the app needs, so we scope it after a requirements review rather than quoting a flat number upfront. Simple internal tools cost less than multi-role customer platforms with real-time features.
How long does it take to build a web app?
Most web applications take 6 to 14 weeks from kickoff to launch, depending on scope and integrations. A single-purpose internal tool lands on the shorter end; a multi-role platform with real-time features and several integrations takes longer.
Do you build single-page apps or traditional multi-page sites?
We build whichever fits the workload: single-page apps for highly interactive tools, server-rendered apps when SEO or first-load speed matters more. We decide this during requirements review, not by default preference.
Who owns the code after the project is done?
You do. The source code, repository, and design system files are handed over in full, and you're free to take them to another team or maintain them in-house.
Do you provide support after launch?
Yes, through our Maintenance & Support service, which covers bug fixes, security patches, and ongoing improvements on a retainer basis. Many clients start with a build engagement and move to a support retainer once the app is live.

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