KR Studio

Backend Development

APIs, business logic, authentication services, real-time systems and backend architecture that power digital products.

What it covers

  • APIs
  • Business logic
  • Authentication services
  • Real-time systems
  • Backend architecture

What shapes the estimate.

Pricing follows the work: what the project needs, what it connects to and what it takes to test and deliver it properly. These are the choices you make in the project configurator.

A typical starting scope (APIs, Database architecture): estimated $4,500–$5,500, 6–12 days. Final pricing and delivery timeline are confirmed after requirements review.

Design, development, data and integration work run in parallel where they can, so adding a feature does not simply add its days. Integrations, extra platforms and AI evaluation add the most time.

  • Backend: APIs, Authentication, Business logic, Database architecture, Integrations, Background jobs, Queues, Real-time, Security, API documentation

Part of

Start a project

  • Start a Project — configure your scope and see an estimated range and delivery timeframe